Title:
LITHIUM BATTERY CELL, PREPARATION METHOD FOR LITHIUM BATTERY CELL, AND LITHIUM BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/244408
Kind Code:
A1
Abstract:
A lithium battery cell, the lithium battery cell comprising a positive electrode piece (110) and a negative electrode piece (120) which are isolated from each other and are in a preset pattern, the lithium battery cell is formed by winding the positive electrode piece (110) and the negative electrode piece (120), a plurality of positive electrode tabs (131) are provided in a first preset region of the positive electrode piece (110), and a plurality of negative electrode tabs (141) are provided in a second preset region of the negative electrode piece (120); and the plurality of wound positive electrode tabs (131) are stacked to form at least one positive electrode end (130) of the lithium battery cell, a plurality of negative electrode tabs (141) are stacked to form at least one negative electrode end (140) of the lithium battery cell, the plurality of stacked positive electrode tabs (131) are provided in parallel, the plurality of stacked negative electrode tabs (141) are provided in parallel, and the positive electrode tabs (131) and the negative electrode tabs (141) are arranged in a staggered manner.
Inventors:
XIE HONGBIN (CN)
Application Number:
PCT/CN2021/096601
Publication Date:
December 09, 2021
Filing Date:
May 28, 2021
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H01M10/052; H01M10/0587; H01M50/50; H01M50/531
Foreign References:
| CN111710898A | 2020-09-25 | |||
| CN111584920A | 2020-08-25 | |||
| CN111063937A | 2020-04-24 | |||
| CN109904355A | 2019-06-18 | |||
| JP2012054197A | 2012-03-15 | |||
| JP2010086717A | 2010-04-15 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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