• 专利标题:   Preparing laser induced manganese oxide/graphene array in lithium metal battery negative electrode, involves adhering copper foil current collector on substrate and polyimide film on copper foil, laser scribing on PI film so that PI film in scribed portion is induced by laser into graphene array.
  • 专利号:   CN115763823-A
  • 发明人:   HUANG S, XIE T, XIAO H, LI Y
  • 专利权人:   UNIV GUANGDONG TECHNOLOGY
  • 国际专利分类:   B82Y030/00, B82Y040/00, C01B032/184, C01B032/194, H01M010/052, H01M010/42, H01M004/134, H01M004/66, H01M004/78
  • 专利详细信息:   CN115763823-A 07 Mar 2023 H01M-004/66 202324 Chinese
  • 申请详细信息:   CN115763823-A CN11401977 10 Nov 2022
  • 优先权号:   CN11401977

▎ 摘  要

NOVELTY - Preparing laser induced manganese oxide/graphene array involves adhering copper foil current collector on substrate and polyimide (PI) film on copper foil, laser scribing with processing depth of 100% on PI film, so that PI film in scribed portion is induced by laser into graphene (LIG) array, dividing remaining non-processed PI film into PI columns; adding manganese source to PI column and LIG array to prepare precursor, laser-processing all areas on surface of precursor, using laser to heat manganese source into manganese oxide (MnOx) nano-particles, anchoring to LIG array, inducing upper portion of multiple PI columns of PI laser into LIG while anchoring MnOxnanoparticles in LIG, and obtaining laser induced manganese oxide/graphene array composed of copper foil, PI column and LIG array anchored with MnOx nanoparticles. USE - Method for preparing laser induced manganese oxide/graphene array used in lithium metal battery negative electrode (claimed). ADVANTAGE - The method enables to have simple and convenient operation, low nucleation over potential, good circulation stability and excellent multiplying power performance, and realizes control of array structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a laser induced manganese oxide/graphene array, which is prepared by preparation method applied to lithium metal battery negative electrode.