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1. CN113871810 - Tab, battery cell with tab, battery module and battery pack

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Office
China
Application Number 202010617233.1
Application Date 30.06.2020
Publication Number 113871810
Publication Date 31.12.2021
Publication Kind A
IPC
H01M 50/536
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
536characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/533
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
533characterised by the shape of the leads or tabs
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 10/654
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
654located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
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
H01M 10/6568
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
656characterised by the type of heat-exchange fluid
6567Liquids
6568characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
CPC
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 10/654
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
654located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
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
H01M 10/6568
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
656characterised by the type of heat-exchange fluid
6567Liquids
6568characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
H01M 50/533
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
533characterised by the shape of the leads or tabs
H01M 50/536
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
536characterised by the method of fixing the leads to the electrodes, e.g. by welding
Applicants BYD COMPANY LIMITED
比亚迪股份有限公司
Inventors WU WENGANG
吴文刚
LIU YANCHU
刘彦初
ZHOU GUISHU
周贵树
LI HANWEN
李瀚文
TANG JUN
唐俊
Agents 北京景闻知识产权代理有限公司 11742
Title
(EN) Tab, battery cell with tab, battery module and battery pack
(ZH) 极耳和具有其的电芯、电池模组和电池包
front page image
Abstract
(EN) The invention discloses a tab, a battery cell with the tab, a battery module and a battery pack. The tab comprises a first tab piece and a second tab piece, wherein the second tab piece is arranged on one side of the first tab piece in the thickness direction, at least one cooling cavity is defined between the second tab piece and the first tab piece, and the cooling cavity is filled with a cooling medium. According to the tab provided by the embodiment of the invention, the first tab piece and the second tab piece are arranged, the at least one cooling cavity is defined between the second tab piece and the first tab piece, and the cooling cavity is filled with the cooling medium, so that the tab has a relatively good heat dissipation effect, the temperatures of the tab and the battery cell can be effectively reduced, then the performance of the battery cell is more excellent, and the service life of the battery cell is prolonged.
(ZH) 本发明公开了一种极耳和具有其的电芯、电池模组和电池包，所述极耳包括：第一极耳片；第二极耳片，所述第二极耳片设在所述第一极耳片的厚度方向上的一侧，所述第二极耳片与所述第一极耳片之间内限定出至少一个冷却腔，所述冷却腔内填充有冷却介质。根据本发明实施例的极耳，通过设置第一极耳片和第二极耳片，并使第二极耳片与第一极耳片之间内限定出至少一个冷却腔且冷却腔内填充有冷却介质，具有较好的散热效果，可以有效降低极耳和电芯的温度，从而使电芯的性能更加优异，延长电芯的使用寿命。
Related patent documents
WO/2022/001382
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