CONDUCTIVE FILM FOR ZINC SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, COMPOSITE SEPARATOR FOR ZINC SECONDARY BATTERY, AND ZINC SECONDARY BATTERY

Title:

CONDUCTIVE FILM FOR ZINC SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, COMPOSITE SEPARATOR FOR ZINC SECONDARY BATTERY, AND ZINC SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2024/001420

Kind Code:

A1

Abstract:

The present application relates to the technical field of batteries, and specifically relates to a conductive film for a zinc secondary battery and a preparation method therefor, a composite separator for a zinc secondary battery, and a zinc secondary battery. The conductive film for a zinc secondary battery of the present application comprises a porous polymer film, wherein pores of the porous polymer film are filled with a conductive composition; the conductive composition comprises the following components in parts by weight: 1-10 parts of a conductive agent and 0.1-1 part of an additive; the conductive agent is at least one of graphite, conductive carbon black, acetylene black, graphene, carbon nanotubes, and a copper powder; and the additive is at least one of a tin powder, a tin dioxide powder, a bismuth powder, a bismuth oxide powder, an indium powder, an indium oxide powder, a lead powder, a lead oxide powder, a cadmium powder, and a cadmium oxide powder. The composite separator for a zinc secondary battery of the present application encapsulates the periphery of a battery cell, such that the problem of it not being possible to weld an existing conductive tin-plated copper foil to a battery separator can be solved.

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Inventors:

LI LIANGSHENG (CN)
WANG MINGYU (CN)
ZHAO LIANGDONG (CN)

Application Number:

PCT/CN2023/087913

Publication Date:

January 04, 2024

Filing Date:

April 12, 2023

Export Citation:

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Assignee:

CHAOWEI POWER GROUP CO LTD (CN)
HENAN CHAOLI NEW ENERGY CO LTD (CN)

International Classes:

H01B5/14; H01B13/00; H01M10/24; H01M50/40; H01M50/403

Foreign References:

CN110911724A	2020-03-24
CN113422158A	2021-09-21
CN114974669A	2022-08-30
JP2019216059A	2019-12-19

Attorney, Agent or Firm:

HENAN CHAOLI NEW ENERGY CO., LTD (CN)

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