• 专利标题:   Preparation of silicon-carbon negative electrode used for lithium ion battery, involves dispersing conductive agent in dispersant solution to obtain mixed solution, and mixing active particles and binder.
  • 专利号:   CN114914444-A
  • 发明人:   LIN W, TU Z
  • 专利权人:   CHINA PETROLEUM CHEM CORP RES INST, CHINA PETROLEUM CHEM CORP
  • 国际专利分类:   H01M010/0525, H01M004/04, H01M004/131, H01M004/134, H01M004/1391, H01M004/1395, H01M004/62
  • 专利详细信息:   CN114914444-A 16 Aug 2022 H01M-004/62 202294 Chinese
  • 申请详细信息:   CN114914444-A CN10184727 10 Feb 2021
  • 优先权号:   CN10184727

▎ 摘  要

NOVELTY - Preparation of silicon-carbon negative electrode involves dispersing conductive agent (A) in dispersant solution to obtain mixed solution (A), mixing active particles, binder (A) and conductive agent (B) to obtain particles (A), placing particles (A) and binder (B) into solution (A) to obtain solution (B), mixing solution (B) with graphite and coating in a current collector. The conductive agent (A) is linear conductive agent and/or planar conductive agent. The conductive agent (B) is linear conductive agent. USE - Preparation of silicon-carbon negative electrode used for lithium ion battery (all claimed). ADVANTAGE - The method improves the long period cycle stability of the obtained silicon-carbon negative electrode, and the structure of the silicon carbon negative electrode is stable, and has long service life, and can effectively improve the performance of the battery.