• 专利标题:   Slurry used in positive electrode sheet for lithium-ion battery of electric device, comprises manganese-containing positive electrode active material, binder, conductive agent, weak base salt and solvent.
  • 专利号:   CN116053476-A
  • 发明人:   BAO R, ZHANG B, ZHONG K, HUANG H
  • 专利权人:   BATTERO TECH CORP LTD
  • 国际专利分类:   H01M010/0525, H01M010/42, H01M004/505, H01M004/62
  • 专利详细信息:   CN116053476-A 02 May 2023 H01M-004/62 202348 Chinese
  • 申请详细信息:   CN116053476-A CN10071281 13 Jan 2023
  • 优先权号:   CN10071281

▎ 摘  要

NOVELTY - A slurry comprises a manganese-containing positive electrode active material, a binder, a conductive agent, a weak base salt and a solvent. USE - Slurry used in positive electrode sheet for lithium-ion battery of electric device (all claimed). ADVANTAGE - The weak base salt is added to slurry, which can make slurry itself in a weakly alkaline environment, realize the capture of hydrofluoric acid generated in the reaction during the electrochemical reaction, and inhibit the disproportionation reaction between hydrofluoric acid and manganese ions. The addition of weak alkali salt can effectively inhibit the dissolution of manganese in the positive electrode material and improve the cycle and storage performance of the battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of slurry.