• 专利标题:   Battery active material for electrode, includes multiple of graphene platelets to which are coupled multiple of heteroatoms or heteroionic species.
  • 专利号:   US2023030305-A1, WO2023009594-A1
  • 发明人:   RIZZI L G, CESAREO G G, SOONSHIONG P
  • 专利权人:   DIRECTA PLUS SPA, NANT HOLDINGS IP LLC, NANT HOLDINGS IP LLC, DIRECTA PLUS SPA
  • 国际专利分类:   C01B032/192, H01M010/0525, H01M010/36, C01B032/21, H01M004/02, H01M004/133, H01M004/36, H01M004/38, H01M004/583, H01M004/86, H01M050/409
  • 专利详细信息:   US2023030305-A1 02 Feb 2023 C01B-032/192 202311 English
  • 申请详细信息:   US2023030305-A1 US874747 27 Jul 2022
  • 优先权号:   US226116P, US228557P, US274791P, US874747

▎ 摘  要

NOVELTY - Battery active material includes multiple of graphene platelets to which are coupled multiple of heteroatoms and/or heteroionic species. The graphene platelets have a lateral size from 50-50,000 nanometer and a thickness from 0.34-50 nanometer. The graphene platelets have a carbon to oxygen ratio of at least 50. USE - Battery active material for electrode (claimed). ADVANTAGE - The battery active material has significantly improved conductive properties as opposed to unmodified graphene platelets and can be easily produced at mass quantities and low cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of preparing a battery active material, which involves providing expanded graphite flakes in a liquid dispersant, and admixing multiple of heteroatoms and/or heteroionic species with the graphite flakes to generate a mixed dispersion, and subjecting the mixed dispersion to high-pressure homogenization under conditions that produce multiple of graphene platelets to which are coupled multiple of heteroatoms and/or heteroionic species.