• 专利标题:   Pre-complementary lithium conductive agent for lithium-ion battery of electric vehicle, has lithium, lithium/carbon and conductive carbon material, where lithium is attached to surface of conductive carbon material, and lithium/carbon embedded between interlayer of conductive carbon material.
  • 专利号:   CN115881956-A
  • 发明人:   HE K, GE L, XIAO J, YUAN X, XU Z
  • 专利权人:   BYD CO LTD
  • 国际专利分类:   H01M010/0525, H01M004/13, H01M004/133, H01M004/134, H01M004/62
  • 专利详细信息:   CN115881956-A 31 Mar 2023 H01M-004/62 202333 Chinese
  • 申请详细信息:   CN115881956-A CN11145020 28 Sep 2021
  • 优先权号:   CN11145020

▎ 摘  要

NOVELTY - Pre-complementary lithium conductive agent has lithium (Li), lithium (Li)/ carbon (C) and conductive carbon material. The Li is attached to the surface of the conductive carbon material. The Li/C is embedded between the interlayer of the conductive carbon material. The total content of the Li and the Li/C is 22-68wt.% based on the total mass of the Li, the Li/C and the conductive carbon material. The conductive carbon material is chosen from at least one of nanotubes, graphene, carbon black and carbon fibers. USE - Pre-complementary lithium conductive agent for lithium-ion battery of electric vehicle (all claimed). Uses include but are not limited to lithium electronic device, electric bicycle and electric automobile. ADVANTAGE - The active lithium in the pre-complementary lithium conductive agent is easy to fall off, it has very high electrochemical reaction activity, it can make up the lithium of the lithium-ion battery cathode forming process, so as to improve the first charging and discharging efficiency of the ion battery lithium improves the gram capacity of the anode, improves the capacity lithium the battery, and further enhances the conductivity of the conductor, reduces the impedance of the active material, and does not introduce other impurities. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a method for preparing pre-complementary lithium conductive agent; an anode; and a cathode.