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  • 专利标题:   Processing low-temperature resistant lithium ion battery interface solid electrolyte interface film, involves coating conductive agent on lithium metal surface, and drying adhesive to obtain liquid metal solid electrolyte interface layer.
  • 专利号:   CN112563448-A
  • 发明人:   WANG Y, SU L, GAO C, CAO Y, DENG H, CHEN M, DANG W, SU R, CAI W, LIU J, ZHANG H
  • 专利权人:   STATE GRID EASTERN INNER MONGOLIA ELECTR, STATE GRID EASTERN INNER MONGOLIA ELECTR, STATE GRID ELECTRIC POWER RES INST, STATE GRID CORP CHINA
  • 国际专利分类:   H01M010/0525, H01M010/42, H01M004/13, H01M004/139, H01M004/62
  • 专利详细信息:   CN112563448-A 26 Mar 2021 H01M-004/13 202143 Pages: 6 Chinese
  • 申请详细信息:   CN112563448-A CN11455899 10 Dec 2020
  • 优先权号:   CN11455899

▎ 摘　　要

NOVELTY - Processing low-temperature resistant lithium-ion battery interface solid electrolyte interface (SEI) film involves providing physically mixing gallium (Ga) and tin (Sn), heating, stirring, and melting under inert gas atmosphere, then cooling to room temperature to obtain liquid metal alloy of Ga and Sn, providing ultrasonically emulsifying liquid metal alloy of Ga and Sn and 1-dodecyl mercaptan, dispersing liquid metal alloy of Ga and Sn into Ga and Sn alloy nano particles; mixing uniformly Ga and Sn alloy nano particles with conductive agent in N-methyl pyrrolidone, then uniformly coating conductive agent loaded Ga and Sn alloy nanoparticles with adhesive on lithium metal surface, and then drying adhesive to obtain liquid metal solid electrolyte interface layer of Ga and Sn alloy. USE - Method for processing low-temperature resistant lithium ion battery interface SEI film. ADVANTAGE - The method enables to solve problems of lithium dendrite and cycle stability generated in charging and discharging process of cathode material of low-temperature resistant lithium metal battery.