• 专利标题:   Self-repairing flexible electrode useful in lithium sulfur battery, comprises current collector and flexible electrode coating arranged on at least one side surface of the current collector, and flexible electrode coating includes self-healing adhesive and anode active material.
  • 专利号:   CN115275096-A
  • 发明人:   PENG Y, HUANG M, XU W, LIU Y
  • 专利权人:   EVE ENERGY CO LTD
  • 国际专利分类:   H01M010/052, H01M004/13, H01M004/139, H01M004/36, H01M004/62
  • 专利详细信息:   CN115275096-A 01 Nov 2022 H01M-004/13 202302 Chinese
  • 申请详细信息:   CN115275096-A CN10990658 18 Aug 2022
  • 优先权号:   CN10990658

▎ 摘  要

NOVELTY - Self-repairing flexible electrode, comprises a current collector and a flexible electrode coating arranged on at least one side surface of the current collector, and the flexible electrode coating includes a self-healing adhesive and anode active material. The self-healing adhesive includes an amino-containing high molecular polymer and a carbonyl-containing high molecular polymer, and the amino-containing high molecular polymer and carbonyl-containing high molecular polymer are not the same high molecular polymer. The flexible electrode coating further comprises a conductive agent. The anode active material comprises sulfur/carbon composite material, preferably, the conductive agent comprises anyone or a combination of at least two of conductive carbon black, carbon nanotubes and graphene. USE - The self-repairing flexible electrode is useful in lithium sulfur battery (claimed). ADVANTAGE - The electrode: has high integrity and excellent cycle performance by immobilizing poly sulfides with the large number of polar groups carbonyl and amino groups; and promote the redox conversion kinetics and inhibits the shuttle effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of self-repairing flexible electrode.