• 专利标题:   Manufacturing fluorocarbon composite material having three-dimensional structure useful for manufacturing anode for lithium primary battery comprises preparing aqueous solution of graphene oxide, adding fluorocarbon and acid, and reacting.
  • 专利号:   KR2022107978-A
  • 发明人:   KIM H G, HYUN J S, YI W, CHO S
  • 专利权人:   RUMPLIER INC
  • 国际专利分类:   C01B032/10, C01B032/194, H01M004/02, H01M004/06, H01M004/08
  • 专利详细信息:   KR2022107978-A 02 Aug 2022 C01B-032/10 202267 Pages: 12
  • 申请详细信息:   KR2022107978-A KR010596 25 Jan 2022
  • 优先权号:   KR010167

▎ 摘  要

NOVELTY - Manufacturing a fluorocarbon composite material having a three-dimensional structure comprises (1) preparing aqueous solution of graphene oxide at a concentration of 1 mg/ml, (2) adding fluorocarbon and an acid to the aqueous solution of graphene oxide, (3) reacting the resultant of step (2) for 22-26 hours, (4) drying the resultant of step (3) at 70-90° C for 22-26 hours, and (5) milling the result of step (4) and preparing a powder sample. USE - The fluorocarbon composite material is useful for manufacturing anode for lithium primary battery (claimed). ADVANTAGE - The method: improves high output characteristics; increases the overall surface area; and prevents fluorocarbon particles from being re-agglomerated or enlarged. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: fluorocarbon composite material having a three-dimensional structure prepared by above mentioned method; and manufacturing anode for lithium primary battery comprises (a) preparing slurry by mixing the fluorocarbon composite material, metal oxide, conductive material, organic solvent, and binder, (b) coating the slurry on a current collector and performing a first heat treatment to form an electrode, (c) performing secondary heat treatment of the electrode at a temperature higher than that of the first heat treatment, and (d) cold rolling the secondary heat-treated electrode, where based on 100 pts. wt. slurry, 40-60 pts. wt. polyvinyl alcohol is included as a binder, and ≤ 10 pts. wt. polyvinyl alcohol is included with respect to 100 pts. wt. electrode after secondary heat treatment.