• 专利标题:   Anode sheet useful for lithium-ion battery, comprises current collector and conductive coating layer arranged on two surfaces of the current collector, the conductive coating layer includes first active material layer, second active material layer and third active material layer.
  • 专利号:   CN115621412-A
  • 发明人:   DENG X, CHEN N, ZHUANG M, HAO R, TIAN Y
  • 专利权人:   BYD CO LTD
  • 国际专利分类:   H01M010/0525, H01M004/13, H01M004/139, H01M004/36, H01M004/485, H01M004/505, H01M004/525, H01M004/62
  • 专利详细信息:   CN115621412-A 17 Jan 2023 H01M-004/13 202317 Chinese
  • 申请详细信息:   CN115621412-A CN10800035 15 Jul 2021
  • 优先权号:   CN10800035

▎ 摘  要

NOVELTY - Anode sheet for lithium-ion battery, comprises a current collector (1) and a conductive coating layer (2) respectively arranged on two surfaces of the current collector. The conductive coating layer includes a first active material layer (201) bonded to the surface of the current collector. The first active material layer is formed of a first conductive paste containing a first anode active material, a first binder, a first conductive agent, and a first solvent, the radial gram capacity value of the first anode active material is greater than 200 mAh/g×µm. The radial gram capacity value is the ratio of the first anode material gram capacity in the first active material layer, and the primary particle D50 of the first anode material in the first active material layer. USE - The anode sheet is useful for lithium-ion battery (claimed). ADVANTAGE - The anode sheet has high discharge capacity and can ensure the power of the battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM are also included for 1. preparing anode sheet; and 2. lithium-ion battery DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of the anode sheet for lithium-ion battery. 1Current collector 2Conductive coating layer 201First active material layer