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WO2011064009A1 - Dispositif de remplacement de l'électrolyte sur des accumulateurs d'énergie - Google Patents

Dispositif de remplacement de l'électrolyte sur des accumulateurs d'énergie Download PDF

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Publication number
WO2011064009A1
WO2011064009A1 PCT/EP2010/064207 EP2010064207W WO2011064009A1 WO 2011064009 A1 WO2011064009 A1 WO 2011064009A1 EP 2010064207 W EP2010064207 W EP 2010064207W WO 2011064009 A1 WO2011064009 A1 WO 2011064009A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery cell
electrolyte
lithium
metering device
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2010/064207
Other languages
German (de)
English (en)
Inventor
Martin Tenzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP10757106A priority Critical patent/EP2504877A1/fr
Publication of WO2011064009A1 publication Critical patent/WO2011064009A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/691—Arrangements or processes for draining liquids from casings; Cleaning battery or cell casings
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention it is proposed to provide a battery cell or a composite of battery cells of an energy store, in particular a lithium-ion battery, as is currently increasingly used in the motor vehicle sector, with a metering device.
  • a faster, safer and more efficient exchange of the electrolyte of a battery cell can be achieved.
  • the spent electrolyte which still has a low content of free lithium Having ions and thus has a poor conductivity are removed from the battery cell. Furthermore, the spent electrolyte contains unwanted by-products that can exert negative influences on the capacity of the battery cell.
  • the capacity of the battery cell can be raised by a new, unused electrolyte again almost to the initial level of a new battery cell.
  • By refilling electrolyte-depleted battery cells their capacity can be increased again and the internal resistance can be reduced many times over.
  • the newly introduced into the battery cell electrolyte contributes to increase the safety of the battery cell, since on the one hand minimizes the risk of the formation of metallic lithium and on the other by the renewal of the electrolyte contains no unwanted decomposition products or their concentration within the battery cell many times lower.
  • the battery cell can be adapted by filling with new electrolyte and to changing requirements. In this case it must be ensured that it is no longer the originally filled, ie the originally used, electrolyte liquid that is filled in, but also a modified electrolyte is used which is adapted to the corresponding requirements.
  • a variation of the requirements may for example be given by the fact that the battery cell is to be used in a particularly high or particularly low temperature range, or the temperature limits have shifted.
  • the figure shows a sectional view through a cylindrically shaped battery cell with E lektrolyt dosing at the bottom of the battery cell.
  • the figure shows a section through a cylindrically shaped battery cell, in particular a lithium-ion cell with an electrolyte metering device, which is provided at the bottom of the battery cell.
  • a battery cell 10 in particular a lithium-ion battery cell 10, by a wall 18, a bottom 12 and a ceiling-shaped cover 32 is limited.
  • the components mentioned enclose a space 16 in which an electrolyte 20 is accommodated.
  • the space 16 is the electrodes and the electrolyte 20 comprehensive winding of the battery.
  • a tubular insert 14 extends, which is fixed on the one hand in the ceiling-shaped cover 32 and on the other hand in the bottom 12 of the battery cell 10.
  • the insert 14 is a mandrel around which the electrode coil is wound in the manufacture of the battery cell.
  • the battery pack of the battery is accommodated, comprising anode, cathode and separator.
  • the components of the electrode coil comprising anode, cathode and separator are separated with the liquid electrolyte 20.
  • passivation layers may be formed on the surfaces of the anode and cathode.
  • the illustration according to the drawing shows that a metering device 22 is arranged in the bottom region 12.
  • the metering device 22 serves for a single or multiple replacement of the electrolyte 20.
  • the metering device 22 comprises an electrically or manually operable valve 24 which opens or closes a discharge / introduction line 26.
  • the metering device 22 comprises an electrically or manually operable valve 24 which opens or closes a discharge / introduction line 26.
  • An emptying or refilling of the space 16 of the battery cell 10, in particular a lithium-ion battery cell, as outlined above, can take place several times.
  • the replacement of the electrolyte 20 can be completed and less impurities of the old spent electrolyte 20 remain.
  • the repeated rinsing with fresh, unused electrolyte 20 can also partially remove cover layers or passivation layers which have formed in the space 16 due to the parasitic side reactions or decomposition reactions of the old, consumed electrolyte. This reduces i.a. the internal resistance of the battery cell 10 proposed according to the invention, in particular the lithium-ion battery cell 10, so that the life of the same can be decisively reduced.
  • the space 16 and the battery cell 10 can be fully cleaned by targeted discharge of impurities and byproducts several times.
  • the inventively proposed device and the inventively proposed method for replacing an electrolyte 20 of a battery cell, in particular a lithium-ion battery cell 10 by replacing the electrolyte 20 in the unopened state of the battery cell 10 by means of a metering device 22, the spent electrolyte 20, the only still a low content of free lithium Thium ions and thus has a poor conductivity, are removed from the interior, ie the space of the battery cell 10.
  • the performance of the battery cell 10 can be raised by the new electrolyte 20 again almost to the initial level of a battery cell 10 when new.
  • the capacity is increased by refilling the previously emptied space 16 with an electrolyte and the internal resistance is significantly reduced.
  • a battery cell 10 by filling with a new, unused electrolyte 20 can also be adapted to changing requirements.
  • the originally originally filled electrolyte liquid is no longer introduced, but rather a modified electrolyte electrolyte 20 deviating from its composition, which is adapted to corresponding requirements.
  • a lithium-ion battery cell 10 whose space 16 is filled with an electrolyte 20, which is adapted to a particularly high or low temperature range.
  • a composite of a plurality of interconnected battery cells 10, in particular formed as lithium-ion battery cells 10, are flushed when the metering devices 22 of each battery cell 10 to be purged are interconnected and old, spent electrolyte 20 together with impurities from several battery cells 10 can be renewed simultaneously.
  • This can be advantageously and economically also a large battery system, which includes a plurality of battery cells 10, in particular lithium-ion battery cells 10, flush with a similar effort as a single battery cell 10 and the contained, spent electrolyte 20 below Avoid opening of the respective battery cell 10 or reach the battery cells 10.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne une cellule de batterie (10) et un procédé pour remplacer un électrolyte (20) d'une cellule de batterie (10). La cellule de batterie (10) est notamment une cellule de batterie aux ions de lithium. Celle-ci est délimitée par une paroi (18), un fond (12) et un couvercle (32). La cellule de batterie (10) présente un dispositif de dosage (22) pour remplacer un électrolyte (20).
PCT/EP2010/064207 2009-11-24 2010-09-27 Dispositif de remplacement de l'électrolyte sur des accumulateurs d'énergie Ceased WO2011064009A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10757106A EP2504877A1 (fr) 2009-11-24 2010-09-27 Dispositif de remplacement de l'électrolyte sur des accumulateurs d'énergie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047057A DE102009047057A1 (de) 2009-11-24 2009-11-24 Vorrichtung für Elektrolyt-Austausch bei Energiespeichern
DE102009047057.3 2009-11-24

Publications (1)

Publication Number Publication Date
WO2011064009A1 true WO2011064009A1 (fr) 2011-06-03

Family

ID=43078260

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/064207 Ceased WO2011064009A1 (fr) 2009-11-24 2010-09-27 Dispositif de remplacement de l'électrolyte sur des accumulateurs d'énergie

Country Status (3)

Country Link
EP (1) EP2504877A1 (fr)
DE (1) DE102009047057A1 (fr)
WO (1) WO2011064009A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3442052A4 (fr) * 2017-06-07 2019-05-08 LG Chem, Ltd. Élément de batterie à réinjection d'électrolyte, bloc-batterie, système de réinjection d'électrolyte pour bloc-batterie et procédé de réinjection d'électrolyte pour bloc-batterie
CN112886155A (zh) * 2021-03-15 2021-06-01 贵州中瑞丰泰新能源科技有限公司 一种自底部注液的电池结构及电池注液方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011088682A1 (de) 2011-12-15 2013-06-20 Robert Bosch Gmbh Elektrolytflüssigkeitsdosiereinrichtung für Lithium-Zellen
GB2522395A (en) * 2013-08-30 2015-07-29 Nicoventures Holdings Ltd Recharging apparatus
DE102014221300A1 (de) 2014-10-21 2016-04-21 Robert Bosch Gmbh Vorrichtung und Verfahren zum Entfernen von Partikeln aus Batteriezellen
DE102022103025A1 (de) 2022-02-09 2023-08-10 Volkswagen Aktiengesellschaft Batteriezelle sowie Verfahren zur Befüllung einer solchen Batteriezelle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015120A1 (fr) * 1991-02-14 1992-09-03 Jones William E M Appareil pour la remise en circulation de l'electrolyte d'une batterie et procede d'utilisation de cet appareil
US20020076604A1 (en) * 2000-12-20 2002-06-20 Honda Giken Kogyo Kabushiki Kaisha Charging element device and holding structure therefor
DE102005004843A1 (de) * 2005-02-02 2006-08-03 Otto Altmann Akkumulator mit integriertem Batterieschlamm-Reinigungs- und Elektrolytschicht-Optimierungs-System
DE102007023896A1 (de) * 2007-05-23 2008-11-27 Robert Bosch Gmbh Elektrochemischer Energiespeicher und Verfahren zu dessen Betrieb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015120A1 (fr) * 1991-02-14 1992-09-03 Jones William E M Appareil pour la remise en circulation de l'electrolyte d'une batterie et procede d'utilisation de cet appareil
US20020076604A1 (en) * 2000-12-20 2002-06-20 Honda Giken Kogyo Kabushiki Kaisha Charging element device and holding structure therefor
DE102005004843A1 (de) * 2005-02-02 2006-08-03 Otto Altmann Akkumulator mit integriertem Batterieschlamm-Reinigungs- und Elektrolytschicht-Optimierungs-System
DE102007023896A1 (de) * 2007-05-23 2008-11-27 Robert Bosch Gmbh Elektrochemischer Energiespeicher und Verfahren zu dessen Betrieb

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3442052A4 (fr) * 2017-06-07 2019-05-08 LG Chem, Ltd. Élément de batterie à réinjection d'électrolyte, bloc-batterie, système de réinjection d'électrolyte pour bloc-batterie et procédé de réinjection d'électrolyte pour bloc-batterie
US11081765B2 (en) 2017-06-07 2021-08-03 Lg Chem, Ltd. Battery cell refillable with electrolyte, battery pack, electrolyte refilling system for battery pack, and electrolyte refilling method for battery pack
CN112886155A (zh) * 2021-03-15 2021-06-01 贵州中瑞丰泰新能源科技有限公司 一种自底部注液的电池结构及电池注液方法
WO2022193858A1 (fr) * 2021-03-15 2022-09-22 贵州中瑞丰泰新能源科技有限公司 Structure de batterie permettant une injection de liquide à partir du fond et procédé d'injection de liquide de batterie
CN112886155B (zh) * 2021-03-15 2023-10-20 贵州中瑞丰泰新能源科技有限公司 一种自底部注液的电池结构及电池注液方法

Also Published As

Publication number Publication date
DE102009047057A1 (de) 2011-05-26
EP2504877A1 (fr) 2012-10-03

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