• 专利标题:   Anode sheet comprises first coating composed of layered metal oxides, spinel metal oxides, phosphate metal oxides and/or ceramic materials provided on at least one surface of anode collector, and conductive layer including carbon nanotubes, conductive carbon black and/or graphene materials.
  • 专利号:   CN115986130-A
  • 发明人:   WANG T, WANG L
  • 专利权人:   NINGDE AMPEREX TECHNOLOGY LTD
  • 国际专利分类:   H01M010/0525, H01M004/131, H01M004/136, H01M004/66
  • 专利详细信息:   CN115986130-A 18 Apr 2023 H01M-004/66 202342 Chinese
  • 申请详细信息:   CN115986130-A CN10155299 23 Feb 2023
  • 优先权号:   CN10155299

▎ 摘  要

NOVELTY - Anode sheet comprises anode collector, and first coating provided on at least one surface of the anode collector, where the surface of the first coating is also provided with a conductive layer, the surface of the conductive layer is also provided with a anode active material layer, the first coating layer includes a first material, and the first material is composed of layered metal oxides, spinel metal oxides, phosphate metal oxides and/or ceramic materials; and the conductivity of the conductive layer is 0.02-1 S/cm. The conductive layer includes a conductive material, and the conductive material includes carbon nanotubes, conductive carbon black and/or graphene materials. USE - The anode sheet is useful in secondary battery for electric device (all claimed). ADVANTAGE - The anode sheet: utilizes conductive layer with high electrical conductivity, which reduces the contact resistance at the junction of the first coating and the anode active material layer, improves the problem of high internal resistance of the anode of the secondary battery, makes the secondary battery with good safety performance, and improves the rate performance of the secondary battery.