A method of detecting the degree of fiberization of a binder in a dry electrode sheet

By using a cutting and peeling system to detect the degree of adhesive fiberization in dry electrode films, the problem of inadequate monitoring in existing technologies is solved, thereby optimizing electrode performance and improving stability. This technology is suitable for electric vehicles and energy storage systems.

CN122108928APending Publication Date: 2026-05-29JIANGXI GANFENG BATTERY TECH
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI GANFENG BATTERY TECH
Filing Date
2024-11-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing methods for characterizing binder fibrosis are not perfect and lack effective technical means to monitor the degree of fibrosis of binders in dry electrode films, which leads to a decrease in electrode mechanical strength and affects battery charge-discharge performance and cycle stability.

Method used

A cutting and peeling system is used to inspect dry electrode films. The cutting force and displacement are recorded by cutting the film with a cutting tool, and the curves are plotted to analyze the degree of fibrosis and uniformity, providing an innovative visual evaluation method.

Benefits of technology

It can intuitively assess the strength of the binder network and the uniformity of fiberization, optimize the electrode preparation process, improve battery performance and stability, and meet the high-performance requirements of electric vehicles and energy storage systems.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122108928A_ABST
    Figure CN122108928A_ABST
Patent Text Reader

Abstract

The application relates to a method for detecting the fiberization degree of a binder in a dry electrode film, which comprises the following steps: collecting the fiberized powder and preparing a film, placing the prepared film on the base of a cutting and stripping system and fixing the film, wherein the cutting and stripping system further comprises a cutting tool and a tension machine; starting the cutting and stripping system, so that the cutting tool extends into the film and cuts the electrode film under the cutting force applied by the tension machine and moves in the horizontal direction by a predetermined cutting displacement; recording the cutting force applied by the tension machine and the size of the predetermined cutting displacement of the cutting tool in the horizontal direction; drawing a curve diagram of the change of the cutting force with the cutting displacement, and analyzing the fiberization degree and uniformity of the electrode film through the curve diagram. The application can quickly analyze the fiberization degree of the film and further optimize the preparation process of the electrode, improve the performance of the battery, and has important significance for promoting the development of lithium battery technology.
Need to check novelty before this filing date? Find Prior Art