Summary:

The invention provides a composite lithium-ion battery cathode lithium supplement material containing doped porous graphene and organolithium salt, wherein the doped porous graphene is used as a catalyst, and the doped atoms in the doped porous graphene are one or more of N atoms, B atoms, S atoms, N atoms, F atoms, Fe atoms, Cu atoms, Co atoms, Ni atoms and Zn atoms. The composite lithium supplement material provided by the present invention, due to the use of doped porous graphene as a catalyst, is applied in the lithium-ion battery system, can reduce the decomposition potential of the organic lithium salt of the lithium supplement additive, the lithium supplement capacity is higher, and the battery cycle performance is better.

Link: http://epub.cnipa.gov.cn/patent/CN114583175A?8kt2YOWWXQBD=1667820894804