• 专利标题:   High-load, high-load lithium battery cathode material used for preparation of core-shell structure silicon-carbon composite material comprises cathode current collecting body and active layer cathode on one anode of current collector.
  • 专利号:   CN115966692-A
  • 发明人:   LI Z, MU L, FAN T, DU J, YANG G
  • 专利权人:   CHONGQING CHANGAN NEW ENERGY AUTOMOBILE
  • 国际专利分类:   H01M010/0525, H01M010/0562, H01M004/04, H01M004/1393, H01M004/583
  • 专利详细信息:   CN115966692-A 14 Apr 2023 H01M-004/583 202342 Chinese
  • 申请详细信息:   CN115966692-A CN10058879 19 Jan 2023
  • 优先权号:   CN10058879

▎ 摘  要

NOVELTY - A high-capacity lithium battery cathode material comprising a cathode current collector and a cathode active layer set on at least one side of the cathode current collector. The cathode active layer includes a conductive agent, a binder, and an active material. The characteristic feature is that the active material, comprises 75-90 wt.% graphite and 10-25 wt.% NASICON-type electrolyte. The chemical formula of the NASICON-type electrolyte is AM1M2(PO4)3, where A is lithium or sodium, and M1 and M2 are metal ions higher than trivalent. USE - High-load lithium battery cathode material is used for preparation of core-shell structure silicon-carbon composite material and lithium secondary battery. Uses include e.g. hybrid electric vehicle (HEV), electric vehicle, portable electronic device and energy storage system (ESS). ADVANTAGE - The high-load lithium battery cathode material has high safety performance, high volume energy density and long service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of high-load lithium high-load. DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of the high-load lithium cathode. 1Current collector 2Graphite 3Nasicon electrolyte 4Conductive agent and agglomerant