• 专利标题:   Aqueous sodium-ion hybrid capacitor for wear-resistance electronic products, comprises graphene oxide containing sodium-vanadium oxide-fluoro phosphate prepared from e.g. vanadium source, and zeolite template carbon prepared by depositing carbon source on zeolite molecular sieve template.
  • 专利号:   CN114927356-A, CN114927356-B
  • 发明人:   BA D, GONG P, LI Y
  • 专利权人:   UNIV HUAZHONG SCI TECHNOLOGY
  • 国际专利分类:   H01G011/04, H01G011/24, H01G011/30, H01G011/56, H01G011/84
  • 专利详细信息:   CN114927356-A 19 Aug 2022 H01G-011/30 202296 Chinese
  • 申请详细信息:   CN114927356-A CN10539955 17 May 2022
  • 优先权号:   CN10539955

▎ 摘  要

NOVELTY - An aqueous sodium-ion hybrid capacitor comprises positive electrode comprising graphene oxide containing sodium-vanadium oxide-fluoro phosphate, negative electrode comprising zeolite template carbon composition, and electrolyte composed of water and sodium salt. The graphene oxide containing sodium-vanadium oxide-fluoro phosphate composite material is prepared from raw materials including a vanadium source, a fluorine source, a sodium source, a phosphorus source and graphene oxide by a solvothermal method. The zeolite template carbon is obtained by depositing a carbon source on zeolite molecular sieve template, carbonizing and removing the template. The positive electrode has also been activated under the voltage range of 0-1.0 V (vs saturated calomel electrode (SCE)), and the working voltage range of the positive electrode is 0-1.0 V (vs .SCE). The negative electrode has also been activated to stimulate sodium ion storage potential, under the voltage range of -1.0-1.5 V (vs .SCE). USE - Aqueous sodium-ion hybrid capacitor used as energy storage device for wear-resistance electronic products. ADVANTAGE - The aqueous sodium-ion hybrid capacitor has excellent cycle performance and higher energy density. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the aqueous sodium-ion hybrid capacitor.