Title:
CYLINDRICAL CELL AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/138641
Kind Code:
A1
Abstract:
Provided in the embodiments of the present application are a cylindrical cell and an electronic apparatus. The cylindrical cell comprises a wound electrode assembly. The electrode assembly comprises a positive electrode sheet. The positive electrode sheet comprises a positive electrode current collector, a positive electrode active material layer and an insulation layer, the positive electrode active material layer and the insulation layer being both arranged on at least one side of the positive electrode current collector. The positive electrode current collector comprises a first region corresponding to the positive electrode active material layer, a second region corresponding to the insulation layer, and a third region not covered by the positive electrode active material layer or the insulation layer, the second region being located between the first region and the third region in the width direction of the positive electrode current collector. The insulation layer comprises a first part with a first width W1 and a second part with a second width W2, W1+2mm≤W2≤W1+10mm, the second part being located on the outer side of the electrode assembly. The insulation layer of the present application can cover the R corner of the electrode assembly to prevent the electrode assembly from making contact with a casing.
Inventors:
GUO, Jun (No.942 Second Tonglong Road, Industrial Zone, Torch Hi-Tech Industrial Development Zone, Xiamen Fujian 0, CN)
Application Number:
PCT/CN2022/143946
Publication Date:
July 04, 2024
Filing Date:
December 30, 2022
Export Citation:
Assignee:
XIAMEN AMPACE TECHNOLOGY LIMITED (No.942 Second Tonglong Road, Industrial Zone, Torch Hi-Tech Industrial Development Zone, Xiamen Fujian 0, CN)
International Classes:
H01M50/593; H01M4/13; H01M10/0587
Attorney, Agent or Firm:
EAST & CONCORD PARTNERS (25/F Landmark Building Tower 1 8 Dongsanhuan Beilu, Chaoyang District, Beijing 4, CN)
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