Battery cell, method for producing the same, battery device, electric device, and energy storage device

By employing a three-dimensional network structure of composite polymer fibers and ceramic fibers in the gel electrolyte, combined with a core-shell composite matrix of carbon materials and alkali metal elements, the problems of ionic conductivity and mechanical strength of gel electrolytes are solved, improving battery safety and cycle stability, and achieving efficient lithium-ion transport.

CN121769227BActive Publication Date: 2026-06-19ZHEJIANG JINKO ENERGY STORAGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG JINKO ENERGY STORAGE CO LTD
Filing Date
2026-03-02
Publication Date
2026-06-19

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Abstract

This application provides a battery cell and its preparation method, battery device, power consumption device, and energy storage device, including a positive electrode, a negative electrode, and a gel electrolyte. By mass percentage, the gel electrolyte comprises the following components: 20wt%~25wt% fiber matrix, 15wt%~20wt% thermally responsive polymer, 5wt%~20wt% electrolyte salt, and the balance being solvent. The fiber matrix has a three-dimensional network structure and includes composite polymer fibers and ceramic fibers. The composite polymer fibers include multiple composite matrices, which have a core-shell structure and include a polymer and carbon materials distributed on at least a portion of the polymer surface. The gel electrolyte of this application features low interfacial impedance, high ionic conductivity, good mechanical properties, and high safety.
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Citation Information

Patent Citations

  • Composite electrolyte layer and preparation method and application thereof

    CN117638202A

  • Solid electrolyte film and preparation method thereof

    CN119108622A