POSITIVE ELECTRODE, AND ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE USING SAME

Title:

POSITIVE ELECTRODE, AND ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE USING SAME

Document Type and Number:

WIPO Patent Application WO/2021/237466

Kind Code:

A1

Abstract:

The present application relates to a positive electrode, and an electrochemical device and an electronic device using same. Specifically, the present application provides a positive electrode, comprising a positive electrode current collector, a positive electrode active material layer, a bonding layer, and a conducting layer. The bonding layer is disposed between the positive electrode current collector and the positive active material layer. The conducting layer is disposed between the bonding layer and the positive electrode active material layer. The conductive layer comprises 20 wt% to 95 wt% of a conductive agent and 5 wt% to 80 wt% of a binder. The positive electrode of the present application helps to improve the cycle performance and high-temperature storage performance of the electrochemical device.

Inventors:

HAN DONGDONG (CN)
WANG KEFEI (CN)
ZHANG QINGWEN (CN)

Application Number:

PCT/CN2020/092382

Publication Date:

December 02, 2021

Filing Date:

May 26, 2020

Export Citation:

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Assignee:

NINGDE AMPEREX TECHNOLOGY LTD (CN)

International Classes:

H01M4/13; H01M4/62; H01M10/0525

Domestic Patent References:

WO2019123932A1

2019-06-27

Foreign References:

CN103779570A	2014-05-07
CN110581255A	2019-12-17
JP2014035886A	2014-02-24

Other References: