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WO2013047994A2 - Élément de batterie et module de batterie - Google Patents

Élément de batterie et module de batterie Download PDF

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Publication number
WO2013047994A2
WO2013047994A2 PCT/KR2012/006190 KR2012006190W WO2013047994A2 WO 2013047994 A2 WO2013047994 A2 WO 2013047994A2 KR 2012006190 W KR2012006190 W KR 2012006190W WO 2013047994 A2 WO2013047994 A2 WO 2013047994A2
Authority
WO
WIPO (PCT)
Prior art keywords
battery cell
battery
pouch
temperature sensor
electrode body
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/KR2012/006190
Other languages
English (en)
Korean (ko)
Other versions
WO2013047994A3 (fr
Inventor
민재윤
김은진
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.)
SK Innovation Co Ltd
Original Assignee
SK Innovation Co Ltd
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 SK Innovation Co Ltd filed Critical SK Innovation Co Ltd
Publication of WO2013047994A2 publication Critical patent/WO2013047994A2/fr
Publication of WO2013047994A3 publication Critical patent/WO2013047994A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • 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
    • H01M10/44—Methods for charging or discharging
    • 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
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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

Definitions

  • the present invention relates to a battery cell and a battery module capable of accurately measuring the temperature of an electrode body configured inside a pouch.
  • secondary batteries unlike primary batteries, can be charged and discharged and applied to various fields such as digital cameras, mobile phones, laptops, and hybrid cars, and active research is being conducted.
  • secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-hydrogen batteries, and lithium secondary batteries.
  • Lithium secondary batteries can be manufactured in various forms, and typical shapes include cylindrical and prismatic types, which are mainly used in lithium ion batteries.
  • Lithium polymer batteries which have recently been in the spotlight, have a pouch type with flexibility. (pouched type), the shape is relatively free.
  • the secondary battery has a high temperature inside the battery cell due to repeated charging and discharging, resulting in deterioration of the battery cell, or shortening of life, or explosion and ignition due to swelling phenomenon caused by gas generation in the pouch. There is a risk.
  • an object of the present invention is a battery cell protruding positive electrode tab and negative electrode tab to one side of the electrode body; A pouch for sealing the electrode body so that the positive electrode tab and the negative electrode tab of the battery cell are drawn out to the outside; And a temperature sensor provided inside the pouch and connected to a sensing line connected to the outside of the pouch. It comprises a, it is to provide a battery cell that can accurately measure the temperature of the electrode body configured in the pouch.
  • the sensing line of the temperature sensor is connected to a battery management system (BMS), so that the charging current of the battery cell is controlled according to the temperature measured by the temperature sensor to prevent the overcharge and over-discharge of the battery cell It is to provide a battery cell and a battery module.
  • BMS battery management system
  • the battery cell with a built-in temperature sensor of the present invention for achieving the above object, the battery cell protruding positive electrode tab and negative electrode tab to one side of the electrode body; A pouch for sealing the electrode body so that the positive electrode tab and the negative electrode tab of the battery cell are drawn out to the outside; And a temperature sensor provided inside the pouch and connected to a sensing line connected to the outside of the pouch. Characterized in that comprises a.
  • the sensing line of the temperature sensor is connected to a battery management system (BMS), characterized in that the charging current of the battery cell is controlled according to the temperature measured by the temperature sensor.
  • BMS battery management system
  • the sensing line of the temperature sensor of the battery cells is connected to a battery management system (BMS), and the battery cells according to respective temperatures measured by the temperature sensors.
  • BMS battery management system
  • the battery cell of the present invention is provided with a temperature sensor inside the pouch, it is possible to accurately measure the temperature change of the battery cell generated by the charge and discharge of the battery cell, the sensing line of the temperature sensor is a battery management system (BMS) Is connected to, by controlling the charging current of the battery cell in accordance with the temperature measured by the temperature sensor, there is an advantage that can prevent the overcharge and over-discharge of the battery cell.
  • BMS battery management system
  • the battery module formed by stacking a plurality of battery cells of the present invention has the advantage that the charging current of the battery cells can be controlled to charge or discharge the respective battery cells efficiently.
  • FIG. 1 is a perspective view showing a battery cell of the present invention.
  • FIG. 2 is a cross-sectional view along AA ′ in FIG. 1.
  • 3 and 4 is an exploded perspective view and an assembled perspective view showing a battery module laminated battery cells of the present invention.
  • FIG. 1 is a perspective view showing a battery cell of the present invention.
  • the battery cell 1000 of the present invention includes a battery cell 100 in which the positive electrode tab 121 and the negative electrode tab 122 protrude to one side of the electrode body 110; A pouch 200 for wrapping and sealing the electrode body 110 such that the positive electrode tab 121 and the negative electrode tab 122 of the battery cell 100 are drawn out to the outside; And a temperature sensor 300 provided inside the pouch 200 and configured to connect the sensing line 310 to the outside of the pouch. It is made, including.
  • the battery cell 100 is a portion capable of charging or discharging electricity, and is connected to the positive electrode tab 121 and the negative electrode at one side thereof so as to be connected to the positive electrode plate and the negative electrode plate of the electrode body 110 including a positive electrode plate, a negative electrode plate, a separator, and an electrolyte.
  • the tab 122 protrudes.
  • the battery cell 100 is formed in a shape surrounding the outer surface of the battery cell 100 so that the battery cell 100 is sealed by the pouch 200.
  • the pouch 200 is formed such that the electrode tab 120 extending to one side of the electrode body 110 is drawn out of the pouch 200.
  • the battery cell 100 is formed by extending the positive electrode tab 121 and the negative electrode tab 122 to one side of the electrode body 110, the pouch 200 and the positive electrode tab 121 It is formed in such a way as to surround only the electrode body 110 except for the negative electrode tab 122.
  • the pouch 200 is formed to seal the electrode body 110, so that the edge of the pouch 200 is sealed by heat fusion in the state in which the battery cell 100 is inserted into the pouch 200. Can be formed.
  • the pouch 200 may be made of an aluminum laminate packaging material
  • the aluminum laminate packaging material is a packaging material made of a thin and flexible form by depositing a plastic thin film such as polyethylene (PE) on a thin aluminum (Al) plate, the battery cell Insulation with (100) can be ensured, and the electrode tab 120 is drawn out to the outside through heat fusion, thereby facilitating sealing.
  • PE polyethylene
  • Al thin aluminum
  • the pouch 200 may be a case of a type that encloses and seals the electrode body 110 of the battery cell 100. That is, according to the shape of the battery cell 100, the electrode tab 120 may be formed in a case such as a square or circle shape surrounding the electrode body 110 to be drawn out.
  • the temperature sensor 300 is provided inside the pouch 200, and the sensing line 310 connected to the temperature sensor 300 is configured to be drawn out of the pouch 200.
  • the sensing line 310 is also formed so as to seal a portion through which the sensing line 310 passes when the edge portion of the pouch 200 is sealed, and the battery cell 100 inside the pouch 200.
  • the electrode body 110 and the temperature sensor 300 are accommodated and the electrode tab 120 and the sensing line 310 are formed to be drawn out of the pouch 200.
  • the temperature sensor 300 is provided in the inside of the pouch 200, as shown in Figs. 1 and 2 is located in the empty space inside the pouch 200 on the upper side of the electrode body 110, the overall thickness May be thinly formed, and may be configured such that the temperature sensor 300 is in contact with the electrode body 110.
  • the temperature sensor 300 may be provided between the positive electrode tab 121 and the negative electrode tab 122 of the battery cell 100 inside the pouch 200, and the electrode body 110 may be provided. It may be provided at various positions around the electrode body 110 or the upper side of the).
  • the temperature sensor 300 may be a thermocouple, and other types of temperature sensors may be used.
  • the battery cell 1000 of the present invention can accurately measure the temperature change of the battery cell generated by charging and discharging the battery cell.
  • the sensing line 310 of the temperature sensor 300 is connected to a battery management system (BMS), so that the charging current of the battery cell 100 is controlled according to the temperature measured by the temperature sensor 300.
  • BMS battery management system
  • the battery cell 1000 of the present invention is configured to be stacked using the case 1100 and the cover 1200 as shown in FIGS. 3 and 4, and the electrode tabs 120 are connected in series or in parallel to form a battery pack or a battery.
  • Module 2000 may be configured.
  • each of the battery cells 1000 of the battery module 2000 has a temperature sensor 300 built-in and the sensing line 310 is connected to the BMS, to control the charging current according to the temperature of each of the battery cells 1000
  • the plurality of battery cells 1000 may be evenly charged or discharged. That is, the temperature sensor 300 embedded in each battery cell 1000 of the battery module 2000 is connected to the BMS, and detects the rising temperature of each battery cell when the battery module is charged and discharged to set a preset temperature. When exceeded, the information may be sent to the BMS to control the charging or discharging of each battery cell.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

La présente invention a trait à un élément de batterie et à un module de batterie qui comprend : un élément de batterie possédant une languette positive et une languette négative conçues de manière à dépasser vers un côté d'un corps d'électrode ; une enveloppe entourant le corps d'électrode et le rendant étanche de sorte que la languette positive et la languette négative de l'élément de batterie soient tirées vers l'extérieur ; ainsi qu'un capteur de température situé à l'intérieur de l'enveloppe et comportant une ligne de détection qui est reliée à ce capteur et qui est prévue pour être tirée vers l'extérieur de ladite enveloppe. La température du corps d'électrode qui se trouve à l'intérieur de l'enveloppe peut être mesurée avec précision.
PCT/KR2012/006190 2011-09-28 2012-08-03 Élément de batterie et module de batterie Ceased WO2013047994A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110098208A KR20130034282A (ko) 2011-09-28 2011-09-28 배터리 셀 및 배터리 모듈
KR10-2011-0098208 2011-09-28

Publications (2)

Publication Number Publication Date
WO2013047994A2 true WO2013047994A2 (fr) 2013-04-04
WO2013047994A3 WO2013047994A3 (fr) 2013-05-23

Family

ID=47996567

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/006190 Ceased WO2013047994A2 (fr) 2011-09-28 2012-08-03 Élément de batterie et module de batterie

Country Status (2)

Country Link
KR (1) KR20130034282A (fr)
WO (1) WO2013047994A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014181950A1 (fr) * 2013-05-06 2014-11-13 주식회사 엘지화학 Batterie secondaire, module de batterie secondaire la comprenant, et pack de batteries secondaires
CN106252768A (zh) * 2016-08-31 2016-12-21 天津市捷威动力工业有限公司 一种测量软包电池内部温度的方法
US10107867B2 (en) 2013-11-12 2018-10-23 Infineon Technologies Ag Sensor arrangement, battery cell and energy system
CN111630705A (zh) * 2018-03-23 2020-09-04 重庆金康新能源汽车有限公司 用于电动车辆中的电池组的电池单元
US11870288B1 (en) 2021-05-19 2024-01-09 Francois Renaud-Byrne Intelligent battery system and method of operation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102152364B1 (ko) 2013-12-05 2020-09-04 삼성에스디아이 주식회사 배터리 팩
KR20220160437A (ko) * 2021-05-27 2022-12-06 현대모비스 주식회사 배터리 셀 온도측정 장치
KR20240011041A (ko) 2022-07-18 2024-01-25 주식회사 엘지에너지솔루션 온도센서, 그를 포함하는 이차전지 및 이차전지 제조방법
KR20240118501A (ko) 2023-01-27 2024-08-05 에스케이온 주식회사 배터리 셀 조립체 및 이를 포함하는 배터리 팩

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002313431A (ja) * 2001-04-11 2002-10-25 Mitsubishi Materials Corp 非水電解質二次電池
KR101147605B1 (ko) * 2006-10-16 2012-05-23 주식회사 엘지화학 이차전지의 제조방법
KR101419556B1 (ko) * 2009-03-02 2014-07-16 주식회사 엘지화학 열전현상을 이용한 자가 온도조절 전기자동차용 배터리팩

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014181950A1 (fr) * 2013-05-06 2014-11-13 주식회사 엘지화학 Batterie secondaire, module de batterie secondaire la comprenant, et pack de batteries secondaires
KR20140131716A (ko) * 2013-05-06 2014-11-14 주식회사 엘지화학 이차전지, 이를 포함하는 이차전지 모듈 및 이차전지 팩
KR101577387B1 (ko) * 2013-05-06 2015-12-16 주식회사 엘지화학 이차전지, 이를 포함하는 이차전지 모듈 및 이차전지 팩
US9653724B2 (en) 2013-05-06 2017-05-16 Lg Chem, Ltd. Secondary battery, and secondary battery module and secondary battery pack comprising the same
US10107867B2 (en) 2013-11-12 2018-10-23 Infineon Technologies Ag Sensor arrangement, battery cell and energy system
CN106252768A (zh) * 2016-08-31 2016-12-21 天津市捷威动力工业有限公司 一种测量软包电池内部温度的方法
CN111630705A (zh) * 2018-03-23 2020-09-04 重庆金康新能源汽车有限公司 用于电动车辆中的电池组的电池单元
CN111630705B (zh) * 2018-03-23 2023-08-11 重庆金康新能源汽车有限公司 用于电动车辆中的电池组的电池单元
US11870288B1 (en) 2021-05-19 2024-01-09 Francois Renaud-Byrne Intelligent battery system and method of operation

Also Published As

Publication number Publication date
WO2013047994A3 (fr) 2013-05-23
KR20130034282A (ko) 2013-04-05

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