WO2014182122A1 - 전지 모듈, 및 이를 구비하는 전지팩 - Google Patents
전지 모듈, 및 이를 구비하는 전지팩 Download PDFInfo
- Publication number
- WO2014182122A1 WO2014182122A1 PCT/KR2014/004154 KR2014004154W WO2014182122A1 WO 2014182122 A1 WO2014182122 A1 WO 2014182122A1 KR 2014004154 W KR2014004154 W KR 2014004154W WO 2014182122 A1 WO2014182122 A1 WO 2014182122A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- battery module
- present
- battery pack
- bent portion
- 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
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
-
- 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
-
- 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 module, and a battery pack having the same, and more particularly, a plurality of unit cells are interconnected by sharing one outer circumferential surface, wherein the shared outer circumferential surface includes a bent portion, And it relates to a battery pack having the same.
- a secondary battery which is a kind of energy storage device capable of charging and discharging, has been widely used as an energy source of wireless mobile devices.
- EVs electric vehicles
- HEV hybrid electric vehicles
- a solution for air pollution of existing gasoline vehicles and diesel vehicles using fossil fuel is proposed.
- Small and mobile devices use one or two or four battery units per device, whereas medium and large devices such as automobiles are used in medium and large battery packs electrically connected to a plurality of battery units due to the need for high output and large capacity.
- the medium-large battery pack is usually composed of a plurality of battery units connected in series.
- the secondary battery is manufactured in various shapes such as a cylindrical shape and a square shape.
- Each of the battery units is electrically connected to a current collector of a positive electrode plate and a negative electrode plate provided with an electrode assembly in which a positive electrode and a negative electrode are disposed with a separator interposed therebetween, a case including a receiving unit in which the electrode assembly is embedded, and the positive and negative electrode plates of the electrode assembly.
- each battery unit cross-aligns the unit cells such that the protruding positive electrode terminal and the negative electrode terminal are alternated with the positive electrode terminal and the negative electrode terminal of the neighboring battery unit, and a nut is provided between the screwed negative electrode terminal and the positive electrode terminal.
- the battery pack is constructed by connecting and installing conductors.
- the battery pack forms a single battery pack by connecting several to many dozen battery units.
- Korean Patent Laid-Open Publication No. 10-2010-0026612 provides a battery pack for connecting a plurality of battery units in series, but the increase in volume of such a battery pack causes an increase in the volume of an external device to which the battery pack is applied. Will be generated.
- the battery pack is applied as a high-capacity secondary battery for driving a motor of an electric vacuum cleaner, an electric scooter, or an automobile (electric vehicle or a hybrid vehicle)
- it is necessary to minimize the volume of the battery pack because the installation space of the battery pack is narrow. There is this.
- An object of the present invention is to provide a battery module having a new structure in which a plurality of unit cells are interconnected in a new manner in order to solve the above problems.
- Another object of the present invention is to provide a battery pack comprising the battery module according to the present invention.
- the present invention provides a battery module, characterized in that a plurality of unit cells are interconnected by sharing one outer peripheral surface of the case, the shared outer peripheral surface includes a bent portion in order to solve the above problems.
- the width S x of the bent portion satisfies the relationship between the height B y of the unit cell and B y ⁇ S x ⁇ 3B y .
- the bent portion is characterized in that it comprises a bending line, punching line or groove.
- the bent portion may further include a voltage sensing unit.
- the shared outer peripheral surface further comprises a terminal connection portion.
- the battery module is characterized in that it comprises two electrodes per unit cell.
- the battery module is characterized in that it comprises zero or one electrode per unit cell.
- the present invention also provides a battery pack comprising the battery module according to the present invention.
- the battery pack of the present invention it is characterized in that a plurality of battery modules bent the bent portion is stacked.
- a plurality of unit cells may be interconnected in a new manner to exhibit high voltage and high output capacity, and the plurality of battery modules may be compactly stacked by the above structure, so that the battery module may be compact, lightweight, and high in volume efficiency. It may be prepared as a battery pack having.
- FIG. 1 is a schematic view of a battery module according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a battery pack accommodated in a battery case according to another embodiment of the present invention, two battery units are connected in series.
- 3 and 4 show how the battery pack according to the invention is stacked.
- FIG. 5 is a schematic diagram illustrating a battery pack accommodated in a battery case according to another embodiment of the present invention and a battery pack connected to a battery unit in series, and measuring a voltage thereof.
- 1 and 2 show a schematic view of the battery module according to the present invention.
- a plurality of unit cells 300a and 300b are connected to each other while sharing one outer circumferential surface 210a and 210b of the case, and the shared outer circumferential surface is It characterized in that it comprises a bent portion (220).
- the bent portion 220 is formed on the outer circumferential surface shared by the plurality of batteries, the plurality of pouches 210 are connected to each other by sharing one outer circumferential surface including the bent portion. ) May be bent in a zigzag form with respect to one outer circumferential surface including the bent portion, and may be stacked in a bent state.
- the plurality of unit cells 300a and 300b when the plurality of unit cells 300a and 300b are bent by the bent portion 220, the plurality of unit cells 300a and 300b connected to each other have a structure in which the plurality of unit cells 300a and 300b are closely connected to each other. It is preferable in terms of reducing the volume. Therefore, the width S x of the bent portion 220 is too wide. The height B y and B y of the unit cell 300 are too wide. ⁇ S x ⁇ 3B y relationship.
- the bent portion 220 is characterized in that it comprises a bending line, punching line or groove to facilitate the bending of the unit cells that are adjacent to each other.
- the bent portion when the plurality of unit cells 300a and 300b are bent and stacked, the bent portion includes the bent line, the punching line, or the recess, and the like. On the basis of the bending it is possible not to apply stress to the periphery.
- the connection part 240 may be prevented from being exposed to the outside and the insulation of the outer circumferential surface of the pouch 210 may be secured.
- the shape of the bending line, punching line or groove portion can be all round, elliptical, wedge or polygonal, the shape is not limited.
- the battery module according to the present invention may include two electrodes per unit cell constituting the battery module.
- 1 illustrates a case where a plurality of unit cells 300a and 300b are connected in parallel including two electrodes 410a, 420a, 410a, and 410b including separate positive and negative electrodes.
- the outer circumferential surface of the case shared by the plurality of unit cells further includes a terminal connection part 240.
- a plurality of unit cells included in the battery module may be connected to each other by the terminal connecting unit 240 to form a single battery as a whole.
- the connection between the unit cells through the terminal connection means that the negative electrode / anode terminal included in the unit cell is directly connected to the positive electrode / negative electrode terminal of the neighboring unit pouch.
- the series connection between the unit cells through the terminal connection unit forms a direct connection between the negative terminal of the unit cell 300a and the terminal connection unit 240 to form the positive terminal of the neighboring unit cell 300b. it means.
- the connection between the unit cells through the terminal connecting portion may be formed by heat-sealing the bent portion 220 together with the terminal connecting portion 240 in a state in which the electrode assembly is accommodated in a plurality of unit pouches, This is not restrictive.
- the unit cells 300a and 300b may be interconnected by the terminal connection part 240 included in the shared outer circumferential surface, and as shown in FIG.
- the entire battery module includes two electrodes including one electrode 410a and 410b per unit cell to be configured, or as shown in FIG. 3, the unit cell connected to the middle part includes an electrode that protrudes to the outside. Or zero electrodes.
- the present invention also provides a battery pack comprising the battery module according to the present invention.
- the battery pack according to the present invention is characterized in that a plurality of battery modules bent the bent portion is stacked.
- the bent portion may be bent, and a plurality of the battery modules may be stacked to form a battery pack.
- 3 and 4 illustrate a method in which battery modules according to the present invention are stacked.
- the battery according to the present invention can exhibit high voltage and high output large capacity, and is manufactured as a battery pack 100 having a high efficiency for volume by having a compact structure.
- one unit cell 300 is a lithium secondary battery generating an electromotive force of about 3.6 V
- the battery module 100 includes four unit cells and the unit cells are connected in series, approximately 14.4
- An electromotive force of V produces excellent performance in HEVs or EVs where high operating voltages are required.
- the pouches 210 each serve as a diaphragm for physically separating the plurality of unit cells 300 from each other, the assembling process is very simple and easy, and thus, the process efficiency is excellent.
- the bent portion 220 may further include a voltage sensing unit 230.
- the meter reading means 510 having a probe part is brought into contact with the terminal connection part 240 through a voltage sensing unit 230 including the bent part, and another probe having a probe part is provided.
- the electrical characteristic value between the meter reading means 510 can be measured.
- the electrical characteristic value may be a voltage, a current, or a resistance, and typically measures the voltage across the plurality of battery units 300 connected in series.
- the unit cell 300 includes all devices that undergo an electrochemical reaction, and may be a primary cell, a secondary cell, a fuel cell, a solar cell, or a capacitor, and the like.
- the secondary battery may be a lithium secondary battery, for example, a lithium metal secondary battery, a lithium ion secondary battery, or a lithium polymer secondary battery.
- Pouch 210 bend 220, voltage sensing 230, terminal connection 240,
- Terminal 400 Positive Terminal 410
- Negative Terminal 420
- a plurality of unit cells may be interconnected in a new manner to exhibit high voltage and high output capacity, and the plurality of battery modules may be compactly stacked by the above structure so that the battery module may be compact, lightweight, and have high volumetric efficiency. It may be prepared as a battery pack having.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (9)
- 복수개의 단위 전지가 케이스의 일 외주면을 공유하여 상호 연결되고, 상기 공유하는 외주면이 절곡부를 포함하는 것을 특징으로 하는 전지 모듈.
- 제1항에 있어서,상기 절곡부의 폭(Sx)은 상기 단위 전지의 높이(By)와 By ≤ Sx ≤ 3By 관계를 만족하는 것을 특징으로 하는 전지 모듈.
- 제1항에 있어서,상기 절곡부는 절곡라인, 펀칭라인 또는 요홈부를 포함하는 것을 특징으로 하는 전지 모듈.
- 제1항에 있어서,상기 절곡부는 전압 센싱부를 더 포함하는 것을 특징으로 하는 전지 모듈.
- 제 1 항에 있어서,상기 공유하는 외주면이 단자연결부를 더 포함하는 것을 특징으로 하는 전지 모듈.
- 제 1 항에 있어서,상기 전지 모듈은 상기 단위 전지당 2개의 전극을 포함하는 것을 특징으로 하는 전지 모듈.
- 제 1 항에 있어서,상기 전지 모듈은 상기 단위 전지당 0 개 또는 1개의 전극을 포함하는 것을 특징으로 하는 전지 모듈.
- 제 1 항 내지 제 7 항 중 어느 한 항에 따른 전지 모듈을 포함하는 전지팩.
- 제 8 항에 있어서,상기 전지팩은 상기 절곡부가 절곡된 복수개의 전지 모듈이 적층되는 것인 전지팩.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2013-0053297 | 2013-05-10 | ||
| KR20130053297A KR101485180B1 (ko) | 2013-05-10 | 2013-05-10 | 복수의 단위 전지를 포함하는 전지 모듈, 및 이를 구비하는 전지팩 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014182122A1 true WO2014182122A1 (ko) | 2014-11-13 |
Family
ID=51867516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2014/004154 Ceased WO2014182122A1 (ko) | 2013-05-10 | 2014-05-09 | 전지 모듈, 및 이를 구비하는 전지팩 |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101485180B1 (ko) |
| WO (1) | WO2014182122A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690477A (zh) * | 2021-07-20 | 2021-11-23 | 浙江天能氢能源科技有限公司 | 一种空气冷却式燃料电池电堆 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102129775B1 (ko) * | 2015-11-18 | 2020-07-03 | 주식회사 엘지화학 | 절곡 만입부를 포함하는 전지케이스 |
| KR102739035B1 (ko) | 2019-03-29 | 2024-12-06 | 주식회사 엘지에너지솔루션 | 이차 전지용 전지 케이스 및 파우치 형 이차 전지 |
| KR20220032278A (ko) | 2020-09-07 | 2022-03-15 | 주식회사 엘지에너지솔루션 | 전지 셀의 적층 방식이 개선된 전지 모듈 및 이를 포함하는 전지 팩 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005129260A (ja) * | 2003-10-21 | 2005-05-19 | Tdk Corp | 電池パック |
| KR100659858B1 (ko) * | 2005-11-02 | 2006-12-19 | 삼성에스디아이 주식회사 | 배터리 팩 |
| JP2009026735A (ja) * | 2007-07-19 | 2009-02-05 | Samsung Sdi Co Ltd | パウチ型電池パック |
| KR20100120089A (ko) * | 2009-05-04 | 2010-11-12 | 주식회사 엘지화학 | 전압 센싱부재 및 이를 포함하는 전지모듈 |
| KR20120022385A (ko) * | 2010-09-02 | 2012-03-12 | 삼성에스디아이 주식회사 | 벤딩영역을 갖는 전극조립체 및 이를 포함하는 이차전지 |
-
2013
- 2013-05-10 KR KR20130053297A patent/KR101485180B1/ko active Active
-
2014
- 2014-05-09 WO PCT/KR2014/004154 patent/WO2014182122A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005129260A (ja) * | 2003-10-21 | 2005-05-19 | Tdk Corp | 電池パック |
| KR100659858B1 (ko) * | 2005-11-02 | 2006-12-19 | 삼성에스디아이 주식회사 | 배터리 팩 |
| JP2009026735A (ja) * | 2007-07-19 | 2009-02-05 | Samsung Sdi Co Ltd | パウチ型電池パック |
| KR20100120089A (ko) * | 2009-05-04 | 2010-11-12 | 주식회사 엘지화학 | 전압 센싱부재 및 이를 포함하는 전지모듈 |
| KR20120022385A (ko) * | 2010-09-02 | 2012-03-12 | 삼성에스디아이 주식회사 | 벤딩영역을 갖는 전극조립체 및 이를 포함하는 이차전지 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690477A (zh) * | 2021-07-20 | 2021-11-23 | 浙江天能氢能源科技有限公司 | 一种空气冷却式燃料电池电堆 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140133299A (ko) | 2014-11-19 |
| KR101485180B1 (ko) | 2015-01-21 |
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