Method and device for testing the wettability of an electrical cell

CN122238152APending Publication Date: 2026-06-19SHENZHEN DYNANONIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN DYNANONIC CO LTD
Filing Date
2024-12-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing methods for assessing the wettability of positive electrode sheets are cumbersome and inefficient, and the differences in wettability assessment are too small, making it impossible to provide timely feedback on test results during the production process of positive electrode materials.

Method used

A method for testing the wettability of a battery cell is provided. The method involves fabricating a battery cell from a positive electrode, a negative electrode, and a separator, simulating the operating environment of the positive electrode, and then conducting a wettability test on the battery cell. Finally, the positive electrode is disassembled from the battery cell for further testing.

Benefits of technology

It simplifies the battery assembly process, improves testing efficiency, enhances the electrolyte's ability to climb on the positive electrode, expands the differentiation of wettability test results, reduces testing costs, and provides more intuitive test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

A method and apparatus for testing the wettability of a battery cell are disclosed. The method includes: fabricating a battery cell from a positive electrode, a negative electrode, and a separator; placing the battery cell and electrolyte into the testing apparatus, ensuring the electrolyte level in the apparatus is less than the battery cell height; after a preset immersion time, removing the battery cell and disassembling the positive electrode, and measuring the immersion height of the electrolyte-immersed portion of the positive electrode. This method addresses the problems of cumbersome and inefficient methods for evaluating the wettability of positive electrode sheets using full-cell testing, and the insufficient variation in wettability when directly detecting positive electrode sheet wettability.
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