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Patent Searching and Data


Title:
CELL AND MANUFACTURING METHOD THEREFOR, BATTERY AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/169558
Kind Code:
A1
Abstract:
Disclosed by the present application are a cell and a manufacturing method therefor, a battery and an electronic device. The cell manufacturing method comprises: providing a positive electrode plate substrate; disposing a second positive electrode active material layer in a marginal area on the surface of the positive electrode plate substrate, wherein the conductivity of the second positive electrode active material layer is not higher than 10^(-10)S/m; and disposing a first positive electrode active material layer in an area on the surface of the positive electrode plate substrate except for the area of the second positive electrode active material layer. By providing a second active material layer having a conductivity not higher than 10^(-10)S/m in the marginal area of the positive electrode plate of a battery cell, the phenomena of lithium metal deposition in the negative electrode plate of the cell can be alleviated, thereby prolonging the service life of the cell.

Inventors:
YU, Yuying (Building A, Room #201 1 Qianwan 1st Road,Qianhai Shengang Cooperation Distric, Shenzhen Guangdong 0, 518000, CN)
Application Number:
CN2018/078174
Publication Date:
September 12, 2019
Filing Date:
March 06, 2018
Export Citation:
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Assignee:
SHENZHEN QIANHAI YOURONG TECHNOLOGY LTD (Building A, Room #201 1 Qianwan 1st Road,Qianhai Shengang Cooperation Distric, Shenzhen Guangdong 0, 518000, CN)
International Classes:
H01M10/058
Foreign References:
CN205194796U2016-04-27
CN201663187U2010-12-01
JP2003086170A2003-03-20
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP (A806, Zhongdi BuildingChina University of Geosciences Base,No. 8 Yuexing 3rd Road, High-Tech Industrial Estate, Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
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