Air stability evaluation method for sulfide solid-state batteries
By measuring the hydrogen sulfide gas content of the electrode assembly of a sulfide solid-state battery in a closed environment, the problem of difficulty in evaluating the air stability of sulfide electrolytes in the prior art is solved, and a quantitative judgment on the air stability of sulfide solid-state batteries is realized, improving the accuracy and reliability of the evaluation.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-06-04
AI Technical Summary
Existing technologies cannot effectively evaluate the air stability of sulfide electrolytes with different formulations, leading to performance degradation of sulfide solid-state batteries in humid air, making it difficult to evaluate their air stability through conductivity performance.
A method for evaluating the air stability of sulfide solid-state batteries is provided. The method involves placing the electrode assembly in a closed environment and allowing it to stand at a target humidity for a target time. The hydrogen sulfide content in the closed environment is then measured, and the hydrogen sulfide gas content is used as an evaluation index to determine the degree of reaction between the sulfide solid electrolyte and the humid air.
Measuring the hydrogen sulfide gas content can directly reflect the air stability of sulfide solid-state batteries, providing data support for performance evaluation and improving the accuracy and consistency of the evaluation.
Smart Images
Figure CN2025091461_04062026_PF_FP_ABST