• 专利标题:   Lithium battery anode plate useful for lithium battery, comprises anode substrate, graphene/metal wire composite layer and anode active layer.
  • 专利号:   CN108172777-A
  • 发明人:   TANG Y, WU L, WEN D
  • 专利权人:   QINGYUAN JIAZHI NEW MATERIALS RES INST, GUANGDONG JIANA ENERGY TECHNOLOGY CO LTD
  • 国际专利分类:   H01M004/36, H01M004/583, H01M004/62, H01M004/38, H01M010/0525
  • 专利详细信息:   CN108172777-A 15 Jun 2018 H01M-004/36 201854 Pages: 8 Chinese
  • 申请详细信息:   CN108172777-A CN11226173 29 Nov 2017
  • 优先权号:   CN11226173

▎ 摘  要

NOVELTY - Lithium battery anode plate comprises anode substrate, graphene/metal wire composite layer and anode active layer, where the plurality of the graphene/metal wire composite layer and plurality of the anode active layer spacer layers are disposed on the anode substrate, and the thickness of each of the graphene/metal wire composite layers is one tenth of a thickness to one hundred thousandth of the thickness of each of the anode electrode active layers. USE - The anode plate is useful for lithium battery (claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) lithium battery composite layer comprises lithium battery anode plate mentioned above; and (2) preparing lithium battery anode plate comprising (1) preparing metal wire by electrodeposition on anode substrate, and placing metal wire as catalytic template in chemical vapor deposition reaction chamber, introducing hydrogen and protective gas, heating to 500-1000 degrees C for 20-40 minutes, introducing carbon source, reacting, and cooling to the room temperature to obtain the first-layer graphene/metal wire composite layer, (2) dissolving polyvinylidene ethylene by using N-methylpyrrolidone, mixing anode active material and the dissolved polyvinylidene fluoride solution in the mass ratio of 20:1, grinding in ball mill, and drying to obtain first anode active material slurry, (3) coating anode active material slurry on the first layer graphene/metal wire composite layer, and drying to obtain anode first active layer, (4) preparing second layer of graphene/metal wire composite layer on the anode first active layer by using step (1), (5) coating first anode active material slurry on the second layer graphene/metal wire composite layer, and drying to obtain anode second active layer, and (6) repeating steps (4) and (5) for many times to obtain graphene/metal wire composite layer and anode active layer which are disposed at intervals.