India, July 31 -- BYD has filed a patent application for a cathode composite structure related to solid-state battery technology, which was published by the China National Intellectual Property Administration (CNIPA) on July 28, 2026, according to Sina.

Patent application CN202510126712.6 (publication number CN122474592A) describes a material design combining halide and sulfide electrolyte components, but it does not confirm production plans, vehicle applications, or commercial availability.

New BYD patent combines halide and sulfide electrolyte materials

According to the CNIPA filing, BYD's patent covers a cathode composite material and preparation method for solid-state battery applications.

The design uses two electrolyte particle ...