Title:
PREPARATION METHOD FOR LAMINATED BATTERY CELL, LAMINATED BATTERY CELL, AND LAMINATION DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/031287
Kind Code:
A1
Abstract:
Provided are a preparation method for a laminated battery cell, a laminated battery cell, and a lamination device and system, relating to the technical field of battery cell preparation. The preparation method for a laminated battery cell provided in the embodiment of the present disclosure comprises: sequentially arranging a plurality of first pole pieces between two diaphragms at intervals in a first direction, such that the plurality of first pole pieces and the two diaphragms jointly form an internal layer; sequentially arranging a plurality of second pole pieces on two opposite sides of the internal layer in a crossed manner in the first direction, such that the plurality of second pole pieces and the internal layer jointly form a composite laminated layer, wherein each second pole piece corresponds to each first pole piece; pressing and holding the composite laminated layer to form a staggered laminated layer; and carrying out Z-shaped folding on the staggered laminated layer. The preparation method for a laminated battery cell provided in the embodiment of the present disclosure simplifies the preparation process of the laminated battery cell, greatly improves the production efficiency, and is suitable for large-scale production.
Inventors:
YANG RUKUN (CN)
ZENG LILIANG (CN)
LI PANPAN (CN)
WEI HONGSHENG (CN)
WANG ZECHAO (CN)
ZHENG GENGJIE (CN)
ZENG LILIANG (CN)
LI PANPAN (CN)
WEI HONGSHENG (CN)
WANG ZECHAO (CN)
ZHENG GENGJIE (CN)
Application Number:
PCT/CN2019/107516
Publication Date:
February 25, 2021
Filing Date:
September 24, 2019
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0583; H01M10/04
Domestic Patent References:
| WO2019053530A1 | 2019-03-21 |
Foreign References:
| KR20170059739A | 2017-05-31 | |||
| CN108832190A | 2018-11-16 | |||
| CN105119009A | 2015-12-02 | |||
| CN109565068A | 2019-04-02 |
Other References:
See also references of EP 3800720A4
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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