• 专利标题:   Positive electrode sheet for battery, is formed by coating aluminum foil with slurry comprising active material, thickener, combined aqueous binder, conductive agent, and deionized water.
  • 专利号:   CN115881891-A
  • 发明人:   CHEN Z, WANG X, ZHU W
  • 专利权人:   WOLONG ELECTRIC DRIVE GROUP CO LTD, WOLONG ELECTRIC GROUP ZHEJIANG LIGHTHOUS
  • 国际专利分类:   H01M004/131, H01M004/136, H01M004/1391, H01M004/1397, H01M004/36, H01M004/505, H01M004/525, H01M004/58, H01M004/62
  • 专利详细信息:   CN115881891-A 31 Mar 2023 H01M-004/131 202333 Chinese
  • 申请详细信息:   CN115881891-A CN11443747 18 Nov 2022
  • 优先权号:   CN11443747

▎ 摘  要

NOVELTY - A positive electrode sheet is formed by coating aluminum foil with slurry comprising 92-96 pts. wt. active material, 0.5-1.8 pts. wt. thickener, 2-4 pts. wt. combined aqueous binder, 0.5-3.0 pts. wt. conductive agent, and 60-120 pts. wt. deionized water. The active material is lithium-ion positive electrode material or sodium ion positive electrode material. The combined aqueous binder is composed of two or more of sodium alginate, polyvinyl alcohol, polymethyl methacrylate, hydrogenated nitrile rubber, polyacrylic acid, and styrene-butadiene rubber. USE - Positive electrode sheet for battery. ADVANTAGE - The positive electrode sheet is formed by coating aluminum foil with slurry comprising active material, thickener, combined aqueous binder, conductive agent and deionized water, and the solid content is 40-48%. The positive electrode sheet for battery, and has low production cost, excellent slurry dispersibility and stability, strong adhesive force, small ohmic internal resistance of electrode sheet and battery, and excellent circulation property in the battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of positive electrode sheet.