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ES2444018A1 - Battery comprising a plurality of rechargeable cells arranged in a matrix - Google Patents

Battery comprising a plurality of rechargeable cells arranged in a matrix Download PDF

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Publication number
ES2444018A1
ES2444018A1 ES201330913A ES201330913A ES2444018A1 ES 2444018 A1 ES2444018 A1 ES 2444018A1 ES 201330913 A ES201330913 A ES 201330913A ES 201330913 A ES201330913 A ES 201330913A ES 2444018 A1 ES2444018 A1 ES 2444018A1
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ES
Spain
Prior art keywords
cells
terminals
plate
connection
battery
Prior art date
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Granted
Application number
ES201330913A
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Spanish (es)
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ES2444018B1 (en
Inventor
Antonio LÓPEZ ORTIZ
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Dachs Electronica S A
Original Assignee
DACHS ELECTRONICA S A
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Filing date
Publication date
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Priority to ES201330913A priority Critical patent/ES2444018B1/en
Publication of ES2444018A1 publication Critical patent/ES2444018A1/en
Priority to PCT/IB2014/060972 priority patent/WO2014203089A1/en
Application granted granted Critical
Publication of ES2444018B1 publication Critical patent/ES2444018B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514Methods for interconnecting adjacent batteries or cells
    • H01M50/516Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522Inorganic material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007Types of components
    • H05K2201/10037Printed or non-printed battery
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227Other objects, e.g. metallic pieces
    • H05K2201/1028Thin metal strips as connectors or conductors
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227Other objects, e.g. metallic pieces
    • H05K2201/10287Metal wires as connectors or conductors
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431Details of mounted components
    • H05K2201/10439Position of a single component
    • H05K2201/10492Electrically connected to another device
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/328Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by welding
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Battery (1) of rechargeable cells (2) arranged in a matrix, comprising a connection board (3) between terminals (4, 5) arranged in a face of the battery (1) and provided with connection tracks (6), the terminals (4, 5) being connected by means of cables (7) and by means of welding to said connection tracks (6), the connection board (3) being provided with openings (8) for accessing said terminals (4, 5) through the connection board (3), wherein the board (3) is a printed circuit board, the tracks (4) are on the surface of the board (3) not oriented towards the cells (2), the cables, wires o strips made of electrical conductive alloys (7) connect the terminals (4, 5) to the connection tracks (6) through said openings (5) and the welding is an ultrasound, laser or electric welding. It also relates to a manufacturing method of such battery.

Description

Batería que comprende una pluralidad de celdas recargables dispuestas en matriz. Battery comprising a plurality of rechargeable cells arranged in matrix.

La presente invención se refiere a una batería que comprende una pluralidad de celdas recargables dispuestas en matriz de gran fiabilidad y a un procedimiento de fabricación de dicha batería, que garantiza una gran fiabilidad en las conexiones. The present invention relates to a battery comprising a plurality of rechargeable cells arranged in a highly reliable matrix and to a method of manufacturing said battery, which guarantees high reliability in the connections.

Antecedentes de la invención Background of the invention

Son conocidas las baterías que comprenden una pluralidad de celdas recargables dispuestas en matriz, que comprende al menos una placa de conexiones entre terminales dispuesta en una cara de la batería y provista de pistas de conexión, estando los terminales conectados mediante cables, hilos o cintas de aleación conductora eléctrica y por soldadura a dichas pistas de conexión, estando la placa de conexiones provista de aberturas para el acceso a dichos terminales a través de la placa de conexiones. Batteries are known which comprise a plurality of rechargeable cells arranged in matrix, comprising at least one terminal interconnection plate disposed on one side of the battery and provided with connection tracks, the terminals being connected by cables, wires or tapes of electric and welding conductive alloy to said connection tracks, the connection plate being provided with openings for access to said terminals through the connection plate.

Es un ejemplo de este tipo de baterías el que se describe en US2008152993. Concretamente, este documento se describe el concepto de conexión por un único lado mediante una placa. An example of this type of batteries is described in US2008152993. Specifically, this document describes the concept of connection by a single side by means of a plate.

En US20110097618 Se describe una placa de conexión conector dispuesta en un único la do de la batería, sobre la cual hay dispuesta una PCB (placa de circuito impreso) de control. In US20110097618 A connector connection plate is described arranged in a single battery dock, on which a control PCB (printed circuit board) is arranged.

En US20100136392A1 se describe una placa PCB de control de baterías que incluye sensores, dispositivos de control de la batería y las conexiones necesarias para el control. US20100136392A1 describes a PCB battery control board that includes sensors, battery control devices and the necessary connections for control.

Por otro lado, cada vez es más habitual incorporar en las baterías sistemas de equilibrado de las celdas, que funcionan a partir de señales provenientes de sensores de corriente y tensión, eventualmente de la temperatura, de cada una de las celdas. On the other hand, it is increasingly common to incorporate cell balancing systems into batteries, which operate from signals from current and voltage sensors, possibly temperature, from each of the cells.

Las conexiones de potencia, de monitorización y control de las celdas y de reequilibrado son muy numerosas, y muy especialmente cuando se trata de baterías de alto voltaje que pueden incluir cientos de celdas, en cuyo caso pueden ser varios miles. Si además se quiere proporcionar redundancia, el número de conexiones se dobla. The power connections, monitoring and control of the cells and rebalancing are very numerous, and especially when it comes to high voltage batteries that can include hundreds of cells, in which case they can be several thousand. If you also want to provide redundancy, the number of connections doubles.

Y es sabido que para que las baterías funcionen de forma óptima y su vida útil se alargue al máximo, es preciso que estas conexiones sean de alta calidad y fiabilidad. And it is known that for the batteries to function optimally and their lifespan to be maximized, it is necessary that these connections be of high quality and reliability.

Todo ello supone problemas técnicos con las soluciones actuales: All this involves technical problems with the current solutions:

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Se necesita mucho espacio para realizar las conexiones; It takes a lot of space to make the connections;

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Se necesita mucho tiempo para realizarlas con fiabilidad; It takes a long time to perform them reliably;

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Cualquier cambio supone una complicación, por lo que es difícil escalar los Any change is a complication, so it is difficult to scale the

procedimientos de conexión; connection procedures;

Descripción de la invención Description of the invention

La presente invención tiene por objeto dar una solución a las mencionadas carencias del estado de la técnica mediante un a batería que comprende una pluralidad de celdas recargables dispuestas en matriz, que comprende al menos una placa de conexiones entre terminales dispuesta en una cara de la batería y provista de pistas de conexión, estando los terminales conectados mediante cables, hilos o cintas de aleación conductora eléctrica y por soldadura a dichas pistas de conexión, estando la placa de conexiones provista de aberturas para el acceso a dichos terminales a través de la placa de conexiones, que se caracteriza por el hecho de que: The object of the present invention is to provide a solution to the aforementioned shortcomings of the state of the art by means of a battery comprising a plurality of rechargeable cells arranged in a matrix, comprising at least one interconnection terminal plate disposed on a battery face and provided with connection tracks, the terminals being connected by cables, wires or tapes of electrically conductive alloy and by welding to said connection tracks, the connection plate being provided with openings for access to said terminals through the plate connections, characterized by the fact that:

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la placa es una placa de circuito impreso; The board is a printed circuit board;

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las pistas están en la superficie de la placa no orientada hacia las celdas; the tracks are on the surface of the plate not oriented towards the cells;

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los cables, hilos o cintas de aleación conductora eléctrica conectan los terminales a the wires, wires or tapes of electrically conductive alloy connect the terminals to

las pistas de conexión a través de dichas aberturas; y the connection tracks through said openings; Y

--
la soldadura es por ultrasonidos, por laser o eléctrica. The welding is ultrasonic, laser or electric.

Por lo tanto, la presente invención se basa en la fusión de dos tecnologías, que hasta ahora han permanecido aisladas. Concretamente, la presente invención se basa en combinar la tecnología de baterías con la tecnología de soldaduras de placas de circuito impreso empleada en electrónica. Ello permite realizar muchas soldaduras, a una velocidad elevada, de forma ordenada y de modo totalmente fiable. Como se verá, permite realizar las conexiones de un número muy elevado de celdas, y muy especialmente incluir conexiones a sensores, y también realizar conexiones redundantes. Therefore, the present invention is based on the fusion of two technologies, which until now have remained isolated. Specifically, the present invention is based on combining battery technology with the technology of printed circuit board welding used in electronics. This allows many welds to be carried out, at a high speed, in an orderly manner and in a totally reliable way. As will be seen, it allows connections to be made to a very large number of cells, and especially to include connections to sensors, and also to make redundant connections.

Según una primera variante, todas celdas tienen la misma orientación, siendo ambos terminales de cada celda accesibles por el mismo extremo de la celda, estando provista la placa de aberturas para el acceso a ambos terminales, de modo que las conexiones entre ambos terminales de cada celda y las pistas de conexión se realizan por solamente la superficie de la placa no orientada hacia las celdas. According to a first variant, all cells have the same orientation, both terminals of each cell being accessible by the same end of the cell, the opening plate being provided for access to both terminals, so that the connections between both terminals of each cell cell and connection tracks are made only by the surface of the plate not oriented towards the cells.

También puede preverse, según una segunda variante, aplicar la invención a celdas que presentan los terminales opuestos, estando las celdas dispuestas con los terminales alternados, y que comprende en cada lado de la batería una placa de conexión con las pistas en la superficie de la placa no orientada hacia las celdas. It can also be envisaged, according to a second variant, to apply the invention to cells having the opposite terminals, the cells being arranged with the terminals alternated, and comprising on each side of the battery a connection plate with the tracks on the surface of the plate not oriented towards the cells.

Muy ventajosamente, la o las placas incluye(n) la electrónica de control para cada celda. Esta característica es especialmente ventajosa. La inclusión de la electrónica de control para cada celda en el estado de la técnica, se realiza mediante placas especialmente dedicadas, tal como se ha visto más arriba. Ahora bien, la presente invención, permite incluir en una misma placa tanto las conexiones de potencia como las conexiones de control. Very advantageously, the plate (s) includes the control electronics for each cell. This feature is especially advantageous. The inclusion of the control electronics for each cell in the state of the art is carried out by means of specially dedicated plates, as seen above. However, the present invention allows both power connections and control connections to be included in the same plate.

Preferentemente, la electrónica de control comprende sensores de corriente, tensión y temperatura y un procesador de datos con salida de indicador del estado a un bus de conexión. Preferably, the control electronics comprise current, voltage and temperature sensors and a data processor with status indicator output to a connection bus.

Según otras características opcionales de la invención: According to other optional features of the invention:

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los cables, hilos o cintas de aleación conductora eléctrica son de aleación de aluminio, de cobre o de oro. The cables, wires or tapes of electrically conductive alloy are made of aluminum, copper or gold alloy.

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la o las placas son multicapa. The plate or plates are multilayer.

Ventajosamente, la batería comprende dos cables de conexión entre cada terminal y la pista correspondiente. Advantageously, the battery comprises two connection cables between each terminal and the corresponding track.

La invención podría aplicarse a cualquier tipo de celdas, aunque halla una aplicación ventajosa en las celdas cilíndricas. The invention could be applied to any type of cells, although it finds an advantageous application in cylindrical cells.

Ventajosamente, las celdas son de LiFePo4. Advantageously, the cells are LiFePo4.

Preferentemente, los espacios entre celdas constituyen unos canales de refrigeración, estando provistas la o las placas de aberturas coincidentes con dichos canales. Preferably, the spaces between cells constitute cooling channels, the opening plate (s) coinciding with said channels being provided.

La invención también se refiere a un procedimiento de construcción de una batería a partir de una pluralidad de celdas recargables provistas en al menos uno de sus extremos de terminales, que comprende las siguientes etapas: The invention also relates to a method of building a battery from a plurality of rechargeable cells provided at least one of its terminal ends, which comprises the following steps:

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Disponer las celdas en un soporte de modo que constituyen una matriz; Arrange the cells on a support so that they constitute a matrix;

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Obtener al menos una placa de circuito impreso provista de pistas de conexión y de aberturas con un patrón diseñado para coincidir con dichos terminales una vez dispuesta sobre la batería; Obtain at least one printed circuit board provided with connection tracks and openings with a pattern designed to coincide with said terminals once disposed on the battery;

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Disponer la placa de circuito impreso sobre la batería con dichas aberturas coincidentes con los terminales y con las pistas en la superficie de la placa no orientada hacia las celdas; Arrange the printed circuit board on the battery with said openings coinciding with the terminals and with the tracks on the surface of the board not facing the cells;

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Fijar la placa al soporte; -Conectar mediante cables, hilos o cintas de material conductor eléctrico soldados por ultrasonidos los terminales y las pistas de conexión. Fix the plate to the support; -Connect the terminals and the connection tracks using cables, wires or tapes of electrically conductive material.

Ventajosamente, la conexión entre cada terminal y la pista correspondiente se realiza mediante dos cables. Advantageously, the connection between each terminal and the corresponding track is made by two wires.

Preferentemente, los cables son de aleación de aluminio, de cobre o de oro. Preferably, the cables are made of aluminum, copper or gold alloy.

Según una variante especialmente preferida de la invención , todas las celdas se disponen con la misma orientación, dejando ambos terminales de cada celda accesibles por el mismo extremo de la celda, estando provista la placa de aberturas para el acceso a ambos terminales, de modo que las conexiones entre ambos terminales de cada celda y las pistas de conexión se realizan por solamente la superficie de la placa no orientada hacia las celdas. According to a particularly preferred variant of the invention, all cells are arranged in the same orientation, leaving both terminals of each cell accessible by the same end of the cell, the opening plate being provided for access to both terminals, so that the connections between both terminals of each cell and the connection tracks are made only by the surface of the plate not oriented towards the cells.

Según otra variante del procedimiento, las celdas se disponen con los terminales opuestos, quedando las celdas dispuestas con los terminales alternados, y disponiéndose en cada lado de la batería una placa de conexión con las pistas en la superficie de la placa no orientada hacia las celdas. According to another variant of the procedure, the cells are arranged with the opposite terminals, the cells being arranged with the alternate terminals, and a connection plate with the tracks on the surface of the plate not oriented towards the cells being arranged on each side of the battery .

En el procedimiento, se prevé una etapa anterior de integración de la electrónica de control de cada celda en la o las placas. In the procedure, an earlier stage of integration of the control electronics of each cell in the plate (s) is foreseen.

Finalmente, la electrónica de control comprende sensores de corriente, tensión y temperatura y un procesador de datos con salida de indicador del estado a un bus de conexión. Finally, the control electronics comprise current, voltage and temperature sensors and a data processor with status indicator output to a connection bus.

Breve descripción de las figuras Brief description of the figures

Para mejor comprensión de cuanto se ha expuesto se acompañan unos dibujos en los que, esquemáticamente y tan sólo a título de ejemplo no limitativo, se representa un caso práctico de realización. To better understand how much has been exposed, some drawings are attached in which, schematically and only by way of non-limiting example, a practical case of realization is represented.

La figura 1 es una sección en alzado que muestra los componentes básicos de la batería y muy especialmente las conexiones. Figure 1 is an elevation section showing the basic components of the battery and especially the connections.

La figura 2 es una vista en planta. Figure 2 is a plan view.

Descripción de una realización preferida Description of a preferred embodiment

Tal como puede apreciarse en las figuras 1, la invención se refiere de manera general a una batería 1 que comprende una pluralidad de celdas 2 recargables dispuestas en matriz, que comprende al menos una placa de conexiones 3 entre terminales 4, 5 dispuesta en una cara de la batería 1 y provista de pistas de conexión 6, estando los terminales 4, 5 conectados mediante cables, hilos o cintas de aleación conductora eléctrica 7 y por soldadura a dichas pistas de conexión 6, estando la placa de conexiones 3 provista de aberturas 8 para el acceso a dichos terminales 4, 5 a través de la placa de conexiones 3. As can be seen in FIGS. 1, the invention generally relates to a battery 1 comprising a plurality of rechargeable cells 2 arranged in a matrix, comprising at least one connection plate 3 between terminals 4, 5 arranged on one side. of the battery 1 and provided with connection tracks 6, the terminals 4, 5 being connected by cables, wires or tapes of electrically conductive alloy 7 and by welding to said connection tracks 6, the connection plate 3 being provided with openings 8 for access to said terminals 4, 5 through the connection plate 3.

Siendo estas características ya conocidas, la presente invención se caracteriza por el hecho de que: These characteristics being known, the present invention is characterized by the fact that:

--
la placa 3 es una placa de circuito impreso; board 3 is a printed circuit board;

--
las pistas 6 están en la superficie de la placa 3 no orientada hacia las celdas 2; the tracks 6 are on the surface of the plate 3 not oriented towards the cells 2;

--
los cables, hilos o cintas de aleación conductora eléctrica 7 conectan los terminales the wires, wires or tapes of electrically conductive alloy 7 connect the terminals

4, 5 a las pistas de conexión 6 a través de dichas aberturas 5; y 4, 5 to the connection tracks 6 through said openings 5; Y

--
la soldadura es por ultrasonidos, por láser o eléctrica. The welding is ultrasonic, laser or electric.

En las figuras se ha representado una realización en la que todas celdas 2 tienen la misma orientación, siendo ambos terminales 4, 5 de cada celda 2 accesibles por el mismo extremo de la celda 2, estando provista la placa 3 de aberturas 8 para el acceso a ambos terminales 4, 5, de modo que las conexiones entre ambos terminales 4, 5 de cada celda 2 y las pistas de conexión 6 se realizan por solamente la superficie de la placa 3 no orientada hacia las celdas 2. An embodiment is shown in the figures in which all cells 2 have the same orientation, both terminals 4, 5 of each cell 2 being accessible by the same end of cell 2, the opening plate 3 being provided 8 for access to both terminals 4, 5, so that the connections between both terminals 4, 5 of each cell 2 and the connection tracks 6 are made by only the surface of the plate 3 not oriented towards cells 2.

La batería de la invención se puede obtener a partir del siguiente procedimiento: The battery of the invention can be obtained from the following procedure:

--
Se disponen las celdas 2 en un soporte de modo que constituyen una matriz; The cells 2 are arranged in a support so that they constitute a matrix;

--
Se obtiene al menos una placa de circuito impreso 3 provista de pistas de conexión 6 y de aberturas 8 con un patrón diseñado para coincidir con dichos terminales 4, 5 una vez dispuesta sobre la batería 1; At least one printed circuit board 3 is provided with connection tracks 6 and openings 8 with a pattern designed to coincide with said terminals 4, 5 once arranged on the battery 1;

--
Se dispone la placa de circuito impreso 3 sobre la batería 1 con dichas aberturas 8 coincidentes con los terminales 4, 5 y con las pistas 4 en la superficie de la placa 3 no orientada hacia las celdas 2; The printed circuit board 3 is arranged on the battery 1 with said openings 8 coinciding with the terminals 4, 5 and with the tracks 4 on the surface of the board 3 not oriented towards the cells 2;

--
Se fija la placa al soporte; -Se conectan mediante cables, hilos o cintas de material conductor eléctrico 7 soldados por ultrasonidos los terminales 4, 5 y las pistas de conexión 6. The plate is fixed to the support; -The terminals 4, 5 and the connection tracks 6 are connected by cables, wires or tapes of electrically conductive material 7.

Tal como puede apreciarse en la figura 2, la conexión entre cada terminal y la pista correspondiente se realiza mediante dos o más cables. As can be seen in Figure 2, the connection between each terminal and the corresponding track is made using two or more wires.

A pesar de que se ha hecho referencia a una realización concreta de la invención, es evidente para un experto en la materia que la batería y el procedimiento descritos son susceptibles de numerosas variaciones y modificaciones, y que todos los detalles mencionados pueden ser substituidos por otros técnicamente equivalentes, sin apartarse del ámbito de protección definido por las reivindicaciones adjuntas. Although reference has been made to a specific embodiment of the invention, it is apparent to one skilled in the art that the described battery and method are susceptible of numerous variations and modifications, and that all the mentioned details can be replaced by others. technically equivalent, without departing from the scope of protection defined by the appended claims.

Claims (18)

REIVINDICACIONES 1. Batería (1) que comprende una pluralidad de celdas (2) recargables dispuestas en matriz, que comprende al menos una placa de conexiones (3) entre terminales (4, 5) dispuesta en una cara de la batería (1) y provista de pistas de conexión (6), estando los terminales (4, 5) conectados mediante cables, hilos o cintas de aleación conductora eléctrica (7) y por soldadura a dichas pistas de conexión (6), estando la placa de conexiones (3) provista de aberturas (8) para el acceso a dichos terminales (4, 5) a través de la placa de conexiones (3), caracterizada por el hecho de que: 1. Battery (1) comprising a plurality of rechargeable cells (2) arranged in matrix, comprising at least one connection plate (3) between terminals (4, 5) arranged on one side of the battery (1) and provided of connection tracks (6), the terminals (4, 5) being connected by cables, wires or tapes of electrically conductive alloy (7) and by welding to said connection tracks (6), the connection plate (3) being provided with openings (8) for access to said terminals (4, 5) through the connection plate (3), characterized by the fact that: -la placa (3) es una placa de circuito impreso; -las pistas (4) están en la superficie de la placa (3) no orientada hacia las celdas (2); -los cables, hilos o cintas de aleación conductora eléctrica (7) conectan los terminales -the board (3) is a printed circuit board; -the tracks (4) are on the surface of the plate (3) not oriented towards the cells (2); -electric conductive alloy cables, wires or tapes (7) connect the terminals (4, 5) a las pistas de conexión (6) a través de dichas aberturas (5); y -la soldadura es por ultrasonidos, por laser o eléctrica. (4, 5) to the connection tracks (6) through said openings (5); Y -Welding is by ultrasonic, laser or electric.
2. 2.
Batería según la reivindicación 1, en la que todas celdas (2) tienen la misma orientación, siendo ambos terminales (4, 5) de cada celda (2) accesibles por el mismo extremo de la celda (2), estando provista la placa (3) de aberturas (8) para el acceso a ambos terminales (4, 5), de modo que las conexiones entre ambos terminales (4, 5) de cada celda (2) y las pistas de conexión (6) se realizan por solamente la superficie de la placa (3) no orientada hacia las celdas (2). Battery according to claim 1, wherein all cells (2) have the same orientation, both terminals (4, 5) of each cell (2) being accessible by the same end of the cell (2), the plate ( 3) of openings (8) for access to both terminals (4, 5), so that the connections between both terminals (4, 5) of each cell (2) and the connection tracks (6) are made by only the surface of the plate (3) not oriented towards the cells (2).
3. 3.
Batería según la reivindicación 1, en la que las celdas presentan los terminales opuestos, estando las celdas dispuestas con los terminales alternados, y que comprende en cada lado de la batería una placa de conexión con las pistas (6) en la superficie de la placa (3) no orientada hacia las celdas (2). Battery according to claim 1, wherein the cells have the opposite terminals, the cells being arranged with the terminals alternated, and comprising on each side of the battery a connection plate with the tracks (6) on the surface of the plate (3) not oriented towards cells (2).
4. Four.
Batería según cualquiera de las reivindicaciones anteriores, en la que la o las placas incluye(n) la electrónica de control para cada celda. Battery according to any of the preceding claims, wherein the plate (s) includes the control electronics for each cell.
5. 5.
Batería según cualquiera de las reivindicaciones anteriores, en la que la electrónica de control comprende sensores de corriente, tensión y temperatura y un procesador de datos con salida de indicador del estado a un bus de conexión. Battery according to any of the preceding claims, wherein the control electronics comprise current, voltage and temperature sensors and a data processor with status indicator output to a connection bus.
6. 6.
Batería según cualquiera de las reivindicaciones anteriores, en la que los cables, hilos o Battery according to any of the preceding claims, wherein the cables, wires or
cintas de aleación conductora eléctrica son de aleación de aluminio, de cobre o de oro. Electric conductive alloy tapes are made of aluminum, copper or gold alloy.
7. 7.
Batería según cualquiera de las reivindicaciones anteriores, en la que la o las placas (3) son multicapa. Battery according to any of the preceding claims, wherein the plate (3) is multilayer.
8. 8.
Batería según cualquiera de las reivindicaciones anteriores, que comprende dos cables de conexión entre cada terminal y la pista correspondiente. Battery according to any of the preceding claims, comprising two connection cables between each terminal and the corresponding track.
9. 9.
Batería según cualquiera de las reivindicaciones anteriores, en la que las celdas son cilíndricas. Battery according to any of the preceding claims, wherein the cells are cylindrical.
10. 10.
Batería según cualquiera de las reivindicaciones anteriores, en la que las celdas son de LiFePo4. Battery according to any of the preceding claims, wherein the cells are LiFePo4.
11. eleven.
Batería según cualquiera de las reivindicaciones anteriores, en la que los espacios entre celdas constituyen unos canales de refrigeración, estando provistas la o las placas de aberturas coincidentes con dichos canales. Battery according to any of the preceding claims, wherein the spaces between cells constitute cooling channels, the opening plate or plates coinciding with said channels being provided.
12. 12.
Procedimiento de construcción de una batería (1) a partir de una pluralidad de celdas (2) recargables provistas en al menos uno de sus extremos de terminales (4, 5), que comprende las siguientes etapas: Method of building a battery (1) from a plurality of rechargeable cells (2) provided at least one of its terminal ends (4, 5), comprising the following steps:
--
Disponer las celdas (2) en un soporte de modo que constituyen una matriz; -Obtener al menos una placa de circuito impreso (3) provista de pistas de conexión Arrange the cells (2) in a support so that they constitute a matrix; -Get at least one printed circuit board (3) provided with connection tracks
(6) y de aberturas (8) con un patrón diseñado para coincidir con dichos terminales (4, 5) una vez dispuesta sobre la batería (1); (6) and openings (8) with a pattern designed to coincide with said terminals (4, 5) once arranged on the battery (1);
--
Disponer la placa de circuito impreso (3) sobre la batería (1) con dichas aberturas (8) coincidentes con los terminales (4, 5) y con las pistas (4) en la superficie de la placa Arrange the printed circuit board (3) on the battery (1) with said openings (8) coinciding with the terminals (4, 5) and with the tracks (4) on the surface of the board
(3) no orientada hacia las celdas (2); -Fijar la placa al soporte; -Conectar mediante cables, hilos o cintas de material conductor eléctrico (7) soldados (3) not oriented towards cells (2); -Fix the plate to the support; -Connect using cables, wires or tapes of electrically conductive material (7) welded por ultrasonidos los terminales (4, 5) y las pistas de conexión (6). by ultrasound the terminals (4, 5) and the connection tracks (6).
13. 13.
Procedimiento según la reivindicación 12, en el que la conexión entre cada terminal y la pista correspondiente se realiza mediante dos cables. Method according to claim 12, wherein the connection between each terminal and the corresponding track is made by two wires.
14. 14.
Procedimiento según cualquiera de las reivindicaciones 11 a 12, en el que los cables son de aleación de aluminio, de cobre o de oro. Method according to any of claims 11 to 12, wherein the cables are made of aluminum, copper or gold alloy.
15. fifteen.
Procedimiento según cualquiera de las reivindicaciones 11 a 13, en el que todas las Method according to any of claims 11 to 13, wherein all the
5 celdas (2) se disponen con la misma orientación, dejando ambos terminales (4, 5) de cada celda (2) accesibles por el mismo extremo de la celda (2), estando provista la placa (3) de aberturas (8) para el acceso a ambos terminales (4, 5), de modo que las conexiones entre ambos terminales (4, 5) de cada celda (2) y las pistas de conexión (6) se realizan por solamente la superficie de la placa (3) no orientada hacia las celdas (2). 5 cells (2) are arranged in the same orientation, leaving both terminals (4, 5) of each cell (2) accessible by the same end of the cell (2), the opening plate (3) being provided (8) for access to both terminals (4, 5), so that the connections between both terminals (4, 5) of each cell (2) and the connection tracks (6) are made only by the plate surface (3 ) not oriented towards the cells (2).
16. Procedimiento según cualquiera de las reivindicaciones 11 a 13, en el que las celdas se disponen con los terminales opuestos, quedando las celdas dispuestas con los terminales alternados, y disponiéndose en cada lado de la batería una placa de conexión con las pistas 16. A method according to any of claims 11 to 13, wherein the cells are arranged with the opposite terminals, the cells being arranged with the terminals alternated, and a connection plate with the tracks being arranged on each side of the battery (4) en la superficie de la placa (3) no orientada hacia las celdas (2). 15 (4) on the surface of the plate (3) not oriented towards the cells (2). fifteen
17. 17.
Procedimiento según cualquiera de las reivindicaciones 11 a 16, en el que la o las placas incluye(n) la electrónica de control para cada celda. Method according to any of claims 11 to 16, wherein the plate (s) includes the control electronics for each cell.
18. 18.
Procedimiento según la reivindicación 17, en el que la electrónica de control comprende Method according to claim 17, wherein the control electronics comprise
20 sensores de corriente, tensión y temperatura y un procesador de datos con salida de indicador del estado a un bus de conexión. 20 current, voltage and temperature sensors and a data processor with status indicator output to a connection bus. 6 6 3 3 7 7 7 7 Fig. 2  Fig 2   6 6
ES201330913A 2013-06-18 2013-06-18 Battery comprising a plurality of rechargeable cells arranged in matrix Expired - Fee Related ES2444018B1 (en)

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