• 专利标题:   Manufacturing wide-temperature ferric phosphate battery lithium iron phosphate battery comprises homogenizing positive electrode active material, binder and conductive agent, obtaining cathode sheet after coating, performing modification, drying, sealing and volume separation.
  • 专利号:   CN115882081-A
  • 发明人:   SONG G, LIU Y, DONG Z, ZHANG C, XU Y, LI Z, SHAN Y, ZHAN X, WU T, ZHAO Y, LIN S, ZHANG Z
  • 专利权人:   ZIBO TORCH ENERGY CO LTD
  • 国际专利分类:   H01M010/0525, H01M010/0567, H01M010/0569, H01M010/0585, H01M004/58, H01M004/587, H01M004/62, H01M004/66
  • 专利详细信息:   CN115882081-A 31 Mar 2023 H01M-010/0585 202334 Chinese
  • 申请详细信息:   CN115882081-A CN10127416 17 Feb 2023
  • 优先权号:   CN10127416

▎ 摘  要

NOVELTY - Manufacturing wide-temperature ferric phosphate battery lithium iron phosphate battery comprises (i) homogenizing positive electrode active material, binder and conductive agent, and obtaining the positive electrode sheet after coating, rolling, and punching, where the conductive agent includes traditional conductive agents and new conductive agents, the traditional conductive agent is Super-P orKS-6, and the new conductive agent is vapor-grown carbon fiber (VGCF), carbon nanotube slurry or graphene slurry; (ii) homogenizing cathode active material, binder, conductive agent and oxalic acid, and then obtaining the cathode sheet after coating, rolling and punching. USE - The method is useful for manufacturing wide-temperature ferric phosphate battery lithium iron phosphate battery. ADVANTAGE - The method enables manufacture of wide-temperature type iron-based iron-phosphate battery lithium with improved high and low temperature performance. The battery lithium has the ability of normal working at -40 to 60℃ environment, and overcomes the defect of narrow application range of the lithium of the ion battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the wide-temperature ferric phosphate battery lithium iron phosphate battery.