• 专利标题:   Porous composite electrode for secondary battery comprises organic compounds having redox centers, graphene non-covalently bound to organic compound, and cellulose fibers that disperse organic compound and graphene and form porous structure.
  • 专利号:   KR2022037110-A, KR2477175-B1
  • 发明人:   WOO J, HAM Y J, AN K, YOON Y H, CHEONJOONG K
  • 专利权人:   KOREA ADVANCED SCI TECHNOLOGY INST, KOREA RES INST CHEM TECHNOLOGY, UNIV IND ACADEMIC COOP IN CHUNGNAM NAT
  • 国际专利分类:   C01B032/19, C01B032/194, H01M010/052, H01M004/13, H01M004/139, H01M004/36, H01M004/60, H01M004/62
  • 专利详细信息:   KR2022037110-A 24 Mar 2022 H01M-004/13 202231 Pages: 13
  • 申请详细信息:   KR2022037110-A KR119671 17 Sep 2020
  • 优先权号:   KR119671

▎ 摘  要

NOVELTY - Porous composite electrode comprises organic compounds having redox centers; graphene non-covalently bound to the organic compound; and cellulose fibers that disperse the organic compound and the graphene and form a porous structure. USE - The porous composite electrode is useful for secondary battery (claimed) and various organic electrode materials. ADVANTAGE - The porous composite electrode for high-performance secondary battery has stable oxidation-reduction activity, rapid charge movement, and high mechanical properties simultaneously, high energy density and excellent cycle characteristics; is environmentally friendly; has excellent mechanical properties high-performance secondary battery; and improves the lifespan characteristics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) manufacturing porous composite electrode, comprising exfoliating graphene from an intercalation compound formed from graphite in a stripping solution containing an organic compound having a redox center to non-covalently bond the organic compound and the grapheme, freezing the active material composition comprising graphene, cellulose fibers and a solvent combined with the organic compound, and freeze-drying the frozen active material composition to remove the solvent to form a porous structure; and (2) secondary battery comprising a first electrode comprising the porous composite electrode, a second electrode spaced apart from the first electrode by a separator, and an electrolyte for transferring ions between the first electrode and the second electrode.