• 专利标题:   Preparing graphene/molybdenum disulfide composite fiber electrode as lithium ion battery anode, and lithium wire cathode, involves preparing oxidized graphene aqueous solution by chemical oxidation stripping graphene method.
  • 专利号:   CN106783215-A, CN106783215-B
  • 发明人:   WANG B, WU Q, WU J, YUAN L
  • 专利权人:   NINGGUO LONGSHENG FLEXIBLE ENERGY STORAG
  • 国际专利分类:   H01G011/32, H01G011/36, H01G011/86, H01M010/0525, H01M004/1393, H01M004/1397, H01M004/36, H01M004/58, H01M004/587
  • 专利详细信息:   CN106783215-A 31 May 2017 H01G-011/32 201744 Pages: 8 Chinese
  • 申请详细信息:   CN106783215-A CN11205139 23 Dec 2016
  • 优先权号:   CN11205139

▎ 摘  要

NOVELTY - Preparing graphene/molybdenum disulfide composite fiber electrode involves preparing oxidized graphene aqueous solution by chemical oxidation stripping graphene method, dissolving polyvinylpyrrolidone into aqueous solution, adding ammonium thiomolybdate, infusing mixture for 0.5-3 hours, and stirring for 6-24 hours to obtain aqueous solution of ammonium thiamate. The aqueous solution of graphene is mixed with aqueous solution of ammonium molybdomite in predetermined ratio, stirred mixture for 2-12 hours to obtain homogeneous precursor solution. USE - Method for preparing graphene/molybdenum disulfide composite fiber electrode used as lithium ion battery anode, and lithium wire cathode (claimed). ADVANTAGE - The method enables to prepare graphene/molybdenum disulfide composite fiber electrode which has effectively separated graphene with high conductivity and molybdenum disulfide together with high capacity, improved capacity of fiber storage device, and has good application prospect in field of flexible storage. DETAILED DESCRIPTION - Preparing graphene/molybdenum disulfide composite fiber electrode involves preparing oxidized graphene aqueous solution by chemical oxidation stripping graphene method, dissolving polyvinylpyrrolidone into aqueous solution, adding ammonium thiomolybdate, infusing mixture for 0.5-3 hours, and stirring for 6-24 hours to obtain aqueous solution of ammonium thiamate. The aqueous solution of graphene is mixed with aqueous solution of ammonium molybdomite in predetermined ratio, stirred mixture for 2-12 hours to obtain homogeneous precursor solution, and heated mixture by stirred method to concentrated precursor solution. The precursor solution is injected into hollow tube reactor with inner diameter of 0.1-5 millimeter, and both ends of hollow tube reactor are sealed, and hollow tube reactor is heated at temperature of 160-280 degrees C for 2-14 hours to obtain aqueous graphene/ molybdenum disulfide composite fiber. The aqueous graphene/molybdenum disulfide composite fiber is dried at 20-80 degrees C for 3-24 hours, dehydrated aqueous graphene/molybdenum disulfide composite fiber, and contracted to obtain final product. An INDEPENDENT CLAIM is included for a method for preparing fibrous lithium ion battery, which involves: (A) selecting graphene/molybdenum disulfide composite fiber; (B) placing anode and cathode in middle of lithium ion battery diaphragm, sealing in heat-shrinkable tube; and (C) injecting lithium ion battery electrolyte into heat-shrinkable tube to obtain final product.