Title:
OUTER PACKAGING MATERIAL FOR BATTERY APPARATUS, AND BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/232903
Kind Code:
A1
Abstract:
An outer packaging material for a battery apparatus, the material comprising a base layer (1), a bonding layer (2), a barrier layer (5), another bonding layer (7), and a hot-melt adhesive layer (8); the bonding layer (2) is disposed between the base layer (1) and the barrier layer (5); the other bonding layer (7) is disposed between the barrier layer (5) and the hot-melt adhesive layer (8); the barrier layer (5) is composed of a single layer or multiple layers of aluminum alloy foil; the aluminum alloy foil composition and the mass percentage thereof comprises over 1.2% Fe content and over 1% Mg content; after undergoing annealing treatment, a large amount of Mg will precipitate out from within the aluminum foil, and the ratio of the precipitated Mg amount to a precipitated Al amount is between 2-4.
Inventors:
CHENG ALEX (CN)
CHEN BIN (CN)
WANG XIAOMING (CN)
WANG HUI (CN)
YU SHAOBO (CN)
CHEN BIN (CN)
WANG XIAOMING (CN)
WANG HUI (CN)
YU SHAOBO (CN)
Application Number:
PCT/CN2021/080284
Publication Date:
November 25, 2021
Filing Date:
March 11, 2021
Export Citation:
Assignee:
SHANGHAI ENERGY NEW MAT TECH CO LTD (CN)
International Classes:
H01M50/10; B32B7/12; B32B15/085; B32B15/088; B32B15/20; B32B27/06; B32B27/08; B32B27/32; B32B27/34; B32B27/36; B32B33/00; C22C21/00; H01M10/0525
Domestic Patent References:
| WO2020085189A1 | 2020-04-30 |
Foreign References:
| CN111653694A | 2020-09-11 | |||
| CN110867534A | 2020-03-06 | |||
| CN110945678A | 2020-03-31 | |||
| CN103140592A | 2013-06-05 |
Attorney, Agent or Firm:
SHANGHAI YUANTONG LAW FIRM (CN)
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