• 专利标题:   Design method of a lithium-sulfur battery anode material with electrocatalysis comprises using density functional theory to optimize polysulfides, adsorbing polysulfide-stabilized structures on solvent molecules, and calculating binding energy and electronic structure of stable anode material.
  • 专利号:   CN114284478-A
  • 发明人:   CHENG P, LIU W, YU P, LI S
  • 专利权人:   UNIV NANJING SCI TECHNOLOGY
  • 国际专利分类:   G16C060/00, H01M010/052, H01M004/36, H01M004/38, H01M004/58, H01M004/583, H01M004/88, H01M004/90
  • 专利详细信息:   CN114284478-A 05 Apr 2022 H01M-004/36 202240 Chinese
  • 申请详细信息:   CN114284478-A CN11540829 16 Dec 2021
  • 优先权号:   CN11540829

▎ 摘  要

NOVELTY - Design method of a lithium-sulfur battery anode material with electrocatalysis comprises (i) constructing single metal atomic site or bimetallic atomic site on nitrogen-doped graphene as anode material of lithium-sulfur battery, and optimizing configuration of stable anode material; (ii) using density functional theory (DFT) to optimize polysulfides, adsorbing polysulfide-stabilized structures on solvent molecules dioxolane, dimethoxyethane and stable anode material configuration; (iii) calculating the binding energy of the polysulfide stable structure adsorbed on the solvent molecules; (iv) calculating the electronic structure of the stable anode material; (v) calculating the decomposition energy barrier and Gibbs free energy of redox reactions of polysulfides on the anode material configuration during charging and discharging; and (vi) selecting the stable anode material configuration with smallest Gibbs free energy as the anode material for batteries with electrocatalysis. USE - Method for designing a lithium-sulfur battery anode material with electrocatalysis. ADVANTAGE - The method can design a lithium-sulfur battery anode material with electrocatalytic effect through the DFT calculation method.