• 专利标题:   Semi-solid state fluid anode based on magnetic modification for improving performance of battery under regulation of magnetic field, comprises composite material, conductive agent, and electrolyte, where composite material is made of anode active material, superparamagnetic material, carbon material.
  • 专利号:   CN115775888-A
  • 发明人:   LIAO L, BAI X, LIU H
  • 专利权人:   UNIV CHINA GEOSCIENCES BEIJING
  • 国际专利分类:   H01M004/86, H01M004/88
  • 专利详细信息:   CN115775888-A 10 Mar 2023 H01M-004/86 202326 Chinese
  • 申请详细信息:   CN115775888-A CN11573670 08 Dec 2022
  • 优先权号:   CN11573670

▎ 摘  要

NOVELTY - Semi-solid fluid anode based on magnetic modification comprises a composite material, a conductive agent, and an electrolyte. The composite material is made of anode active material, superparamagnetic material and carbon material. The anode active material is at least one of lithium manganate, lithium cobalt oxide, lithium nickel cobalt manganese oxide or lithium iron phosphate, preferably lithium manganate. The superparamagnetic material is at least one of iron, cobalt, nickel, ferric oxide or ferric oxide, preferably ferric oxide. The carbon material is at least one of carbon nanotubes, nitrogen-doped graphene, carbon fiber and graphene oxide, preferably carbon nanotubes. The conductive agent is at least one of Ketjen black, acetylene black, carbon fiber or carbon nanotube, preferably Ketjen black. The electrolyte is lithium hexafluorophosphate dissolved in ethylene carbonate/diethyl carbonate/dimethyl carbonate (LiPF6+EC/DMC/DEC). USE - The semi-solid fluid anode is useful for improving performance of battery under regulation of magnetic field (claimed). ADVANTAGE - The semi-solid fluid anode has high conductivity, good magnetic response effect, good stability and high specific capacity, and shortens the electronic transmission path, and improves the electrochemical performance of the battery. The preparation technique of the composite material is simple, economical, can provide guidance and theoretical basis for the design of a new type of semi-solid slurry electrode, and can be extended to other battery systems. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of semi-solid fluid anode based on magnetic modification.