• 专利标题:   Positive electrode for lithium sulfur battery comprises active sulfur component adsorbed on aerogel, which comprises honeycomb ducts with consistent extending direction, where hole wall of each channel is composite layer.
  • 专利号:   CN113346091-A
  • 发明人:   LV W, ZHANG B, LUO C, PAN Z, YANG Q, KANG F
  • 专利权人:   TSINGHUA SHENZHEN INT GRADUATE SCHOOL
  • 国际专利分类:   H01M010/052, H01M010/42, H01M004/13, H01M004/139, H01M004/66
  • 专利详细信息:   CN113346091-A 03 Sep 2021 H01M-004/66 202193 Pages: 12 Chinese
  • 申请详细信息:   CN113346091-A CN10633667 07 Jun 2021
  • 优先权号:   CN10633667

▎ 摘  要

NOVELTY - Positive electrode comprises active sulfur component adsorbed on aerogel, which comprises multiple honeycomb ducts with consistent extending direction. The hole wall of each channel is a composite layer, which comprises two-dimensional MXene material layer, and adhesion material layer attached to the two-dimensional MXene material layer. The active sulfur component is adsorbed on the composite layer. USE - The positive electrode is used for lithium sulfur battery (claimed). ADVANTAGE - The lithium-sulfur battery using the positive electrode has good multiplying power performance and cycle stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the positive electrode comprising providing an adhesion material dispersion liquid, two-dimensional material dispersion liquid, and sulfur-containing solution, mixing the adhesion material dispersion liquid and two-dimensional material dispersion liquid to obtain mixed dispersion liquid, putting the mixed dispersion liquid in a mold, putting the mold containing the mixed dispersion liquid into a low temperature container, performing low temperature directional freezing treatment to the mixed dispersion liquid, so that the mixed dispersion liquid is directionally solidified, vacuum freezing and drying the mixed dispersion liquid after directional solidification, obtaining aerogel, and dropping the sulfur-containing solution on the aerogel, where the active sulfur component in the sulfur-containing solution is adsorbed on the composite layer to obtain the positive electrode.