MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202617071942 A) filed by Lg Energy Solution, Ltd.; and The Regents Of The University Of California on June 10, 2026, for Composite Positive Electrode For All-Solid-State Battery, Manufacturing Method Therefor, And All-Solid-State Battery Thereof.
Inventors include Lee, Jeongbeom; Song, Min Sang; Cronk, Ashley; Jang, Jihyun; and Meng, Ying Shirley.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: A composite positive electrode, a composite positive electrode manufacturing method, and an all-solid-state battery comprising the composite positive electrode are disclosed. The composite positive electrode comprises: a plurality of sulfur particles with an arithmetic average particle size of 5-10 µm; a plurality of sulfur-containing solid electrolyte particles of formula Li6PS5X (here, X is Cl, Br or I); and a conductive material comprising a plurality of acetylene black carbon particles. The acetylene black carbon particles have an average particle size of 10-100 nm and a BET specific surface area of 50 m2g-1 to 150 m2g-1, and have a quasi-crystalline structure. The sulfur particles, the sulfur-containing solid electrolyte particles and the conductive material are ball-milled to form a milled mixture, and are pressed to form a composite positive electrode.
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