[Solid-state Battery: Yifeng New Materials' Lithium Sulphide Patent Application] On April 1, 2025, according to information from the National Intellectual Property Administration, Yifeng New Materials Co., Ltd. recently applied for a patent named "A Preparation Method and Application of Lithium Sulphide", with the publication number CN119735171A. This innovative technology involves the reaction of hydrogen sulphide with a lithium source under specific conditions, significantly reducing the generation of lithium hydroxide or oxidizing impurities. This not only enhances the purity of lithium sulphide but also enables it to be directly used as a high-quality raw material for sulphide solid-state electrolytes, thereby improving the overall performance of the electrolytes. The optimization of this preparation method showcases Yifeng New Materials' profound R&D capabilities in the field of solid-state battery materials.
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