New BYD patent combines halide and sulfide electrolyte materialsAccording to the CNIPA filing, BYD’s patent covers a cathode composite material and preparation method for solid-state battery applications. Patent adds to BYD’s broader solid-state battery researchThe latest filing is among several BYD disclosures related to solid-state battery materials. Solid-state battery commercialisation remains a long-term challengeThe wider battery industry has increasingly focused on solid-state technology, but manufacturers have also highlighted the difficulty of moving from laboratory research to large-scale production. Previously, we reported that discussions around CATL and BYD solid-state battery production lines, noting that manufacturing investment does not necessarily indicate commercial readiness. BYD’s latest CNIPA publication reveals another disclosed material design in its solid-state battery research.