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1. WO2020134745 - SECONDARY CELL, CELL MODULE, AND MANUFACTURING METHOD FOR SECONDARY CELL

Publication Number WO/2020/134745
Publication Date 02.07.2020
International Application No. PCT/CN2019/119939
International Filing Date 21.11.2019
IPC
H01M 2/26 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
20Current-conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
CPC
H01M 10/0431
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
0431Cells with wound or folded electrodes
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 50/103
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
10Primary casings, jackets or wrappings of a single cell or a single battery
102characterised by their shape or physical structure
103prismatic or rectangular
H01M 50/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
H01M 50/502
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
50Current conducting connections for cells or batteries
502Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
H01M 50/531
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
50Current conducting connections for cells or batteries
531Electrode connections inside a battery casing
Applicants
  • 宁德时代新能源科技股份有限公司 CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED [CN]/[CN]
Inventors
  • 陈元宝 CHEN, Yuanbao
  • 杨瑞 YANG, Rui
  • 史东洋 SHI, Dongyang
  • 陈宁 CHEN, Ning
  • 胡飞 HU, Fei
  • 李振华 LI, Zhenhua
Agents
  • 北京东方亿思知识产权代理有限责任公司 BEIJING EAST IP LTD.
Priority Data
201811641919.329.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SECONDARY CELL, CELL MODULE, AND MANUFACTURING METHOD FOR SECONDARY CELL
(FR) ACCUMULATEUR, MODULE DE CELLULE ET PROCÉDÉ DE FABRICATION D'ACCUMULATEUR
(ZH) 二次电池、电池模组以及二次电池的制造方法
Abstract
(EN)
A secondary cell (10), a cell module (20), and a manufacturing method for the secondary cell (10). The secondary cell (10) comprises: a housing (11) comprising an accommodation hole (11a) having an opening; a top cover component (12) sealingly connected to the housing (11) to cover the opening; an electrode component (13) disposed in the accommodation hole (11a), and comprising two end surfaces each having an electrode tab (13b) extending therefrom, the two end surfaces being opposite to each other in a first direction (Y) perpendicular to an axial direction (X) of the accommodation hole (11a), the electrode component (13) comprising two or more electrode units (131) stacked in the axial direction (X); and a current collection unit (14) comprising a first sheet (141) and a first current collection plate (14a) connected to the first sheet (141), wherein the first sheet (141) and the first current collection plate (14a) both extend in the axial direction (X), and the electrode tab (13b) is bent relative to the first direction (Y) and electrically connected to the first current collection plate (14a). The electrode tab (13b) comprised in the secondary cell (10) can be connected to the top cover component (12) by means of the current collection unit (14). The current collection unit (14) has a simple, compact structure, and facilitates an increase in the energy density of the secondary cell (10).
(FR)
L'invention concerne un accumulateur (10), un module de cellule (20) et un procédé de fabrication d'accumulateur (10). L'accumulateur (10) comprend : un boîtier (11) comprenant un trou de réception (11a) ayant une ouverture ; un composant de couvercle supérieur (12) relié de façon étanche au boîtier (11) pour recouvrir l'ouverture ; un composant d'électrode (13) disposé dans le trou de réception (11a), et comprenant deux surfaces d'extrémité ayant chacune une languette d'électrode (13b) s'étendant à partir de celle-ci, les deux surfaces d'extrémité étant opposées l'une à l'autre dans une première direction (Y) perpendiculaire à une direction axiale (X) du trou de réception (11a), le composant d'électrode (13) comprenant au moins deux unités d'électrode (131) empilées dans la direction axiale (X) ; et une unité collectrice de courant (14) comprenant une première feuille (141) et une première plaque collectrice de courant (14a) reliée à la première feuille (141), la première feuille (141) et la première plaque collectrice de courant (14a) s'étendent toutes les deux dans la direction axiale (X), et la languette d'électrode (13b) est courbée par rapport à la première direction (Y) et connectée électriquement à la première plaque collectrice de courant (14a). La languette d'électrode (13b) comprise dans l'accumulateur (10) peut être reliée au composant de couvercle supérieur (12) au moyen de l'unité collectrice de courant (14). L'unité collectrice de courant (14) a une structure simple, compacte, et facilite une augmentation de la densité d'énergie de l'accumulateur (10).
(ZH)
一种二次电池(10)、电池模组(20)以及二次电池(10)的制造方法。二次电池(10)包括:壳体(11),壳体(11)包括具有开口的容纳孔(11a);顶盖组件(12),顶盖组件(12)与壳体(11)密封连接以盖闭开口;电极组件(13),设置于容纳孔(11a)内,电极组件(13)包括沿与容纳孔(11a)的轴向(X)相垂直的第一方向(Y)相对的两个端面以及从每个端面延伸出的极耳(13b),电极组件(13)包括两个以上沿轴向(X)层叠设置的电极单元(131);集流单元(14),集流单元(14)包括第一片材(141)和连接于第一片材(141)的第一集流片(14a),第一片材(141)和第一集流片(14a)均沿轴向(X)延伸,极耳(13b)相对于第一方向(Y)弯折并且电连接于第一集流片(14a)。所述二次电池(10)所包括的极耳(13b)能够通过集流单元(14)与顶盖组件(12)相连接,集流单元(14)结构简单、紧凑,有利于提高二次电池(10)的能量密度。
Also published as
Latest bibliographic data on file with the International Bureau