Title:
MECHANISM AND METHOD FOR LITHIUM FILM FORMING, AND APPARATUS AND METHOD FOR ELECTRODE SHEET LITHIUM-SUPPLEMENTING
Document Type and Number:
WIPO Patent Application WO/2021/004409
Kind Code:
A1
Abstract:
Disclosed are a mechanism and method for lithium film forming, and an apparatus and method for electrode sheet lithium-supplementing. The mechanism for lithium film forming comprises a first separation film supplying mechanism (31A), a second separation film supplying mechanism (32A), a lubricating substance applying mechanism (32), a lithium strip supplying mechanism (33) and two rollers (34), wherein the first separation film supplying mechanism supplies a first separation film (S1) to the two rollers; the second separation film supplying mechanism supplies a second separation film (S2) to the two rollers; the lithium strip supplying mechanism enables a lithium strip (L0) to be located between the first separation film and the second separation film and supplies the lithium strip to the two rollers; the lubricating substance applying mechanism supplies a lubricating substance to surfaces, facing the lithium strip, of the first separation film and/or the second separation film before same enter the two rollers; and the two rollers roll the first separation film, the lithium strip and the second separation film such that the lithium strip is rolled into a lithium foil (L1), and the lithium foil is adhered to the second separation film to form a lithium film (C). By providing the lubricating substance applying mechanism, a rolling force is reduced, and the separation film is reused.
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Inventors:
XIE BIN (CN)
CHEN SHITONG (CN)
GONG ZHIJIE (CN)
CHEN SHITONG (CN)
GONG ZHIJIE (CN)
Application Number:
PCT/CN2020/100294
Publication Date:
January 14, 2021
Filing Date:
July 04, 2020
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
B21B1/40; H01M4/139; H01M4/04; H01M10/058
Domestic Patent References:
| WO2012099264A1 | 2012-07-26 |
Foreign References:
| CN207038628U | 2018-02-23 | |||
| CN104993094A | 2015-10-21 | |||
| CN210547002U | 2020-05-19 | |||
| CN104868127A | 2015-08-26 | |||
| CN105489846A | 2016-04-13 | |||
| CN201910605908A | 2019-07-05 |
Other References:
See also references of EP 3933974A4
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