▎ 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.