Title:
FIRST ELECTRODE SHEET, BARE BATTERY CELL, BATTERY, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/066263
Kind Code:
A1
Abstract:
Provided in the present application are a first electrode sheet, a bare battery cell, a battery, and an electronic device. The first electrode sheet comprises a current collector, a first active coating, a second active coating and a tab. The current collector comprises an insulating layer, a first conductive layer, and a second conductive layer. The insulating layer is located between the first conductive layer and the second conductive layer. The current collector comprises a coating portion and a non-coating portion. The first active coating is located on the first conductive layer of the coating portion. The second active coating is located on the second conductive layer of the coating portion. The non-coating portion comprises a bent portion and a flat portion. The first conductive layer at a second end of the bent portion and the second conductive layer of the flat portion face the same side. The tab is electrically connected to the first conductive layer at the second end of the bent portion and the second conductive layer of the flat portion. In this way, the first active coating and the second active coating can be electrically connected to the tab at the same time. When the first electrode sheet is applied to a battery, the first electrode sheet is unlikely to affect the capacity exertion and safety performance of the battery.
Inventors:
TIAN LEILEI (CN)
SONG XIAONA (CN)
WU YILAN (CN)
LI ZHIXIAN (CN)
XIE FENGCHAO (CN)
REN XUEBIN (CN)
SONG XIAONA (CN)
WU YILAN (CN)
LI ZHIXIAN (CN)
XIE FENGCHAO (CN)
REN XUEBIN (CN)
Application Number:
PCT/CN2022/126001
Publication Date:
April 27, 2023
Filing Date:
October 18, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01M50/536; H01M50/533
Foreign References:
| CN217822863U | 2022-11-15 | |||
| CN215008282U | 2021-12-03 | |||
| CN216311832U | 2022-04-15 | |||
| CN114373886A | 2022-04-19 | |||
| CN114361385A | 2022-04-15 | |||
| CN114447399A | 2022-05-06 | |||
| CN101345322A | 2009-01-14 | |||
| CN112289970A | 2021-01-29 | |||
| CN102856558A | 2013-01-02 | |||
| CN112909265A | 2021-06-04 | |||
| CN213546523U | 2021-06-25 | |||
| CN111244388A | 2020-06-05 | |||
| JP2021140981A | 2021-09-16 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF:
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