Title:
BATTERY CELL AND BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/200538
Kind Code:
A1
Abstract:
Provided in the present invention are a battery cell and a battery. The battery cell comprises a first electrode sheet and a second electrode sheet, the first electrode sheet comprising a first current collector and a first active material layer provided on the first collector, and the second electrode sheet comprising a second current collector and a second active material layer provided on the second current collector. The first current collector has a first starting segment from a starting end to a region where a bending first occurs, and the second current collector has a second starting segment from a starting end to a region where a bending first occurs. A surface of the first starting segment facing the second starting segment is not provided with the first active material layer, a surface of the second starting segment facing the first starting segment is not provided with the second active material layer, and a surface of the first starting segment facing away from the second starting segment is provided with the first active material layer. The object of the present invention is to provide a battery cell to at least alleviate poor situations of deformation of the battery cell and wrinkling of a single-sided diaphragm, and improve electrochemical performance and safety performance of the battery cell.
Inventors:
DONG WENMING (CN)
Application Number:
PCT/CN2018/083408
Publication Date:
October 24, 2019
Filing Date:
April 17, 2018
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M10/0587
Foreign References:
| CN206532840U | 2017-09-29 | |||
| JP2012043753A | 2012-03-01 | |||
| CN107546404A | 2018-01-05 | |||
| CN205828573U | 2016-12-21 | |||
| CN106058296A | 2016-10-26 |
Other References:
See also references of EP 3783724A4
Attorney, Agent or Firm:
DEHENG IP LAW, LLC (CN)
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