• 专利标题:   Rechargeable lithium-ion battery with in situ thermally-curable electrolyte comprises cathode with one or more laye selected from lithium manganese oxide, lithium cobalt oxide, lithium nickel manganese cobalt oxide, and lithium iron phosphate, anode with one or more layers include carbon black.
  • 专利号:   US2022149424-A1, CN114530627-A
  • 发明人:   LIU C, LU S, ZHU Y, HAN J, HON W L, QIU Z, LO S H, DONG O, HAN Y, KANEKO T
  • 专利权人:   NANO ADVANCED MATERIALS INST LTD, NANO ADVANCED MATERIALS INST LTD
  • 国际专利分类:   H01M010/0525, H01M010/056, H01M010/058
  • 专利详细信息:   US2022149424-A1 12 May 2022 H01M-010/056 202251 English
  • 申请详细信息:   US2022149424-A1 US460303 29 Aug 2021
  • 优先权号:   US110374P, US460303

▎ 摘  要

NOVELTY - Rechargeable lithium-ion battery with in situ thermally-curable electrolyte comprises cathode with one or more layers selected from lithium manganese oxide, lithium cobalt oxide, lithium nickel manganese cobalt oxide, and lithium iron phosphate, anode with one or more layers selected from carbon black, carbon nanotubes, lithium metal, graphene, and graphite, porous separator having a porosity from approximately 30-90%, and thermally-curable electrolyte precursor solution. The thermally-curable electrolyte precursor solution comprises first crosslinking agent, second crosslinking agent, initiator, electrolyte solvent, electrolyte salt, electrolyte additive, and monomer or monomer polymerization product. USE - Rechargeable lithium-ion battery with in situ thermally-curable electrolyte. ADVANTAGE - The rechargeable lithium-ion battery with in situ thermally-curable electrolyte has greatly improved the safety of battery, and high ionic conductivity and electrochemical stability of the lithium battery. DETAILED DESCRIPTION - Rechargeable lithium-ion battery with in situ thermally-curable electrolyte comprises cathode with one or more layers selected from lithium manganese oxide, lithium cobalt oxide, lithium nickel manganese cobalt oxide, and lithium iron phosphate, anode with one or more layers selected from carbon black, carbon nanotubes, lithium metal, graphene, and graphite, porous separator having a porosity from approximately 30-90%, and thermally-curable electrolyte precursor solution. The thermally-curable electrolyte precursor solution comprises first crosslinking agent, second crosslinking agent, initiator, electrolyte solvent, electrolyte salt, electrolyte additive, and monomer or monomer polymerization product. The viscosity of the thermally-curable electrolyte precursor solution is below 200 centipoise such that the thermally-curable electrolyte precursor solution is infiltrated within the separator and the pores inside the cathode and anode layers then cured to form porous separator and porous electrodes fully permeated with a solid electrolyte. An INDEPENDENT CLAIM is included for a method for fabricating a rechargeable lithium-ion battery with an in situ thermally-curable electrolyte, which involves: (a) stacking or rolling at least one cathode, at least one porous separator and at least one anode to obtain a layered structure; (b) inserting the layered structure into a battery housing; (c) providing a thermally-curable electrolyte precursor solution;(d) pouring the thermally-curable electrolyte precursor solution into the battery housing; (e) sealing the battery housing, heating the battery housing to cure the electrolyte precursor solution into a solid electrolyte and forming a separator fully infused with the solid electrolyte, where the viscosity of the thermally-curable electrolyte precursor solution is below 200 centipoise such that the thermally-curable electrolyte precursor solution is infiltrated within the separator and the pores inside the cathode and anode layer.