• 专利标题:   Lithium thionyl chloride battery anode reaction carrier material, comprises two-dimensional structure of reduced graphene oxide, arc graphene, carbon nanotubes of one-dimensional tubular structure and granular activated carbon of high specific surface area.
  • 专利号:   CN115548246-A
  • 发明人:   XU C, YANG X, GAO Y
  • 专利权人:   UNIV HARBIN ENGINEERING
  • 国际专利分类:   H01M004/08, H01M004/36, H01M004/58, H01M006/14
  • 专利详细信息:   CN115548246-A 30 Dec 2022 H01M-004/08 202314 Chinese
  • 申请详细信息:   CN115548246-A CN11047335 30 Aug 2022
  • 优先权号:   CN11047335

▎ 摘  要

NOVELTY - Lithium thionyl chloride battery anode reaction carrier material, comprises two-dimensional structure of reduced graphene oxide, arc graphene, carbon nanotubes of one-dimensional tubular structure and granular activated carbon of high specific surface area. USE - Used as lithium thionyl chloride battery anode reaction carrier material. ADVANTAGE - The three-dimensional open network structure material has excellent electronic conductivity, large surface area, ultra-fast infiltration of electrolyte on the surface of the electrode material under normal pressure, deposition of sulfur atoms, the product of the anode reaction, will not hinder the diffusion of ions in the electrolyte on the electrode surface, ensues the efficient progress of the anode reaction. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the lithium thionyl chloride primary battery anode reaction carrier material, comprising (i) ultrasonically dispersing and shear emulsification of reduced graphene oxide, arc-processed graphene, and carbon nanotubes are carried out in N-Methyl-2-pyrrolidone (NMP) solvent containing dispersant, infiltrating activated carbon with NMP, (ii) adding the dispersed emulsion to the continuous stirring polyvinyli- dine fluoride (PVDF)+NMP glue in batches according to the order of arc method graphene, carbon nanotubes, reduced graphene oxide, and activated carbon for vacuum stirring and mixing, during which the viscosity is adjusted by adding NMP, (iii) filtering the mixed slurry prepared through a 200 meshes sieve, applying it on the surface of carbon-coated aluminum foil using a coating dryer, coated pole piece enters the vacuum drying oven for 24 hours at 80℃ for vacuum drying, and (iv) passing the pole piece obtained through a roller press and cut it into pieces according to the required size.