• 专利标题:   Method for preparing electrode pole piece for use in lithium ion battery cathode, involves weighing active material, physically peeling graphene and binder, followed by weighing physically peeling graphene for acidification treatment.
  • 专利号:   CN110718678-A
  • 发明人:   FU L, DUAN X, WANG X, LI M, XU K, YANG P, MA X, WANG H, XU J
  • 专利权人:   UNIV ZHENGZHOU AERONAUTICS
  • 国际专利分类:   H01M010/0525, H01M004/131, H01M004/1391, H01M004/485, H01M004/62
  • 专利详细信息:   CN110718678-A 21 Jan 2020 H01M-004/1391 202014 Pages: 8 Chinese
  • 申请详细信息:   CN110718678-A CN11000644 21 Oct 2019
  • 优先权号:   CN11000644

▎ 摘  要

NOVELTY - An electrode pole piece preparing method involves weighing 90-95% active material, 2-5% physically peeling graphene and 2-5% binder, ready for use under the active material is obtained by mixing graphite and lithium titanate in a mass ratio of 4-9: 1, weighing physically peeling graphene for acidification treatment, after acidification treatment, immersing an active material and the physically peeling graphene in an organic solvent to obtain a mixture, and spray-drying the mixture to obtain a mixed powder, mixing the mixed powder with the binder, and grinding for 0.5-1 hour, adding water and continuously grinding to a uniform viscous state to obtain a slurry, uniformly coating the slurry in a copper foil, drying and removing water from the electrode sheet to obtain the finished product. USE - Method for preparing electrode pole piece for use in lithium ion battery cathode (claimed). ADVANTAGE - The method enables preparing electrode pole piece with better battery cathode rate performance, in simple and easy manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an electrode pole piece prepared by the method.