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Title:
BATTERY CELL, BATTERY, ELECTRICAL DEVICE, AND BATTERY CELL MANUFACTURING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/141979
Kind Code:
A1
Abstract:
The present application relates to a battery cell, a battery, an electrical device, and a battery cell manufacturing method and device. The battery cell comprises: an electrode assembly comprising a first tab and a second tab which are opposite in polarity, the first tab and the second tab being respectively located at two ends of the electrode assembly, and the electrode assembly being provided with a winding center hole; a housing assembly comprising a first electrode lead-out portion and a second electrode lead-out portion which are used for inputting or outputting electrical energy, the electrode assembly being arranged in the housing assembly, the first electrode lead-out portion and the second electrode lead-out portion being both arranged on the side of the housing assembly close to the first tab, and the first electrode lead-out portion being electrically connected to the first tab; an adapter passing through the winding center hole, one end of the adapter being connected to the second tab, and the other end of the adapter being connected to the second electrode lead-out portion, so as to electrically connect the second tab and the second electrode lead-out portion; and a heat absorption layer which is located in the winding center hole and arranged on the outer peripheral surface of the adapter, and used for absorbing heat of the adapter.

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Inventors:
LI YING (CN)
LIU CHAO (CN)
CHI QINGKUI (CN)
JIN HAIZU (CN)
Application Number:
PCT/CN2022/074768
Publication Date:
August 03, 2023
Filing Date:
January 28, 2022
Export Citation:
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Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0587; H01M10/04; H01M10/0525
Foreign References:
CN111969253A2020-11-20
CN113328172A2021-08-31
CN206471426U2017-09-05
CN215496872U2022-01-11
CN111969254A2020-11-20
CN214797540U2021-11-19
CN215497007U2022-01-11
US20030215700A12003-11-20
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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