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1. WO2020140336 - BATTERY PACK

Publication Number WO/2020/140336
Publication Date 09.07.2020
International Application No. PCT/CN2019/079640
International Filing Date 26.03.2019
IPC
H01M 10/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
CPC
H01M 10/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
H01M 10/613
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
60Heating or cooling; Temperature control
61Types of temperature control
613Cooling or keeping cold
H01M 10/647
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
60Heating or cooling; Temperature control
64characterised by the shape of the cells
647Prismatic or flat cells, e.g. pouch cells
H01M 10/653
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
60Heating or cooling; Temperature control
65Means for temperature control structurally associated with the cells
653characterised by electrically insulating or thermally conductive materials
H01M 10/6554
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
60Heating or cooling; Temperature control
65Means for temperature control structurally associated with the cells
655Solid structures for heat exchange or heat conduction
6554Rods or plates
H01M 10/6556
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
60Heating or cooling; Temperature control
65Means for temperature control structurally associated with the cells
655Solid structures for heat exchange or heat conduction
6556Solid parts with flow channel passages or pipes for heat exchange
Applicants
  • 宁德时代新能源科技股份有限公司 CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED [CN]/[CN]
Inventors
  • 金海族 JIN, Haizu
  • 游凯杰 YOU, Kaijie
  • 侯跃攀 HOU, Yuepan
  • 胡飞 HU, Fei
  • 王鹏 WANG, Peng
  • 李振华 LI, Zhenhua
Agents
  • 北京智晨知识产权代理有限公司 BEIJING ZHICHEN INTELLECTUAL PROPERTY AGENCY LTD.
Priority Data
201822275458.430.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) BATTERY PACK
(FR) BLOC-BATTERIE
(ZH) 一种电池包
Abstract
(EN)
The present application provides a battery pack, comprising: a box body (1), a plurality of battery modules (2), a cooling plate (3), and a buffer component (4), wherein the battery modules (2) comprise a plurality of battery cells (21) and a plurality of busbars (22); each battery cell (21) comprises an electrode assembly (211) and a battery housing (212); the battery cells (21) are horizontally placed, i.e., the battery cells are flat when the electrode assembly (211) is of a winding type structure; an outer surface of the electrode assembly (211) comprises two flat surfaces (2110), and the two flat surfaces (2110) face each other in a vertical direction; when the electrode assembly (211) is of a laminated structure, a first pole piece (2111), a diaphragm (2113), and a second pole piece (2112) are laminated in the vertical direction. Therefore, the maximum expansion force generated by the electrode assembly (211) of the battery cell (21) during charging and discharging is in the vertical direction. Due to the fact that the cooling plate (3) is located on one side of the battery module (2) in the vertical direction, and the buffer component (4) is arranged between the cooling plate (3) and the box body (1), the battery cells (21) can be used for exerting the maximum expansion force on the buffer component (4) so that the buffer component (4) can be tightly attached to the cooling plate (3) and the box body (1) at the same time, thereby increasing the heat dissipation area, and improving the heat dissipation effect of the cooling plate (3).
(FR)
La présente invention concerne un bloc-batterie, comprenant : un corps de boîtier (1), une pluralité de modules de batterie (2), une plaque de refroidissement (3), et un composant tampon (4), les modules de batterie (2) comprenant une pluralité d'éléments de batterie (21) et une pluralité de barres omnibus (22) ; chaque élément de batterie (21) comprend un ensemble d'électrodes (211) et un boîtier de batterie (212) ; les éléments de batterie (21) sont placés horizontalement, c'est-à-dire que les éléments de batterie sont plats lorsque l'ensemble d'électrodes (211) est d'une structure de type à enroulement ; une surface extérieure de l'ensemble d'électrodes (211) comprend deux surfaces plates (2110), et les deux surfaces plates (2110) se font face dans une direction verticale ; lorsque l'ensemble d'électrodes (211) est d'une structure stratifiée, une première pièce polaire (2111), une membrane (2113) et une seconde pièce polaire (2112) sont stratifiées dans la direction verticale. Par conséquent, la force d'expansion maximale générée par l'ensemble d'électrodes (211) de l'élément de batterie (21) pendant la charge et la décharge est dans la direction verticale. En raison du fait que la plaque de refroidissement (3) est située sur un côté du module de batterie (2) dans la direction verticale, et le composant tampon (4) est disposé entre la plaque de refroidissement (3) et le corps de boîtier (1), les éléments de batterie (21) peuvent être utilisés pour exercer la force d'expansion maximale sur le composant tampon (4) de telle sorte que le composant tampon (4) peut être fermement fixé à la plaque de refroidissement (3) et le corps de boîtier (1) en même temps, augmentant ainsi la zone de dissipation de chaleur, et améliorant l'effet de dissipation de chaleur de la plaque de refroidissement (3).
(ZH)
本申请提供一种电池包,包括:箱体(1)、多个电池模块(2)、冷却板(3)和缓冲构件(4),电池模块(2)包括多个电池单体(21)和多个汇流排(22),电池单体(21)包括电极组件(211)和电池壳体(212),将电池单体(21)平躺放置,即当电极组件(211)为卷绕式结构时为扁平状,电极组件(211)的外表面包括两个扁平面(2110),两个扁平面(2110)沿竖直方向相互面对;当电极组件(211)为叠片式结构时,第一极片(2111)、隔膜(2113)和第二极片(2112)沿竖直方向层叠。因此电池单体(21)的电极组件(211)在充放电时产生的最大膨胀力是沿竖直方向的。由于冷却板(3)是位于电池模块(2)的沿竖直方向的一侧,并且在冷却板(3)和箱体(1)之间设置了缓冲构件(4),因此可以利用电池单体(21)对缓冲构件(4)施加最大的膨胀力,以使缓冲构件(4)同时贴紧冷却板(3)和箱体(1),从而增加散热面积以提高冷却板(3)的散热效果。
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