• 专利标题:   Preparing copper foil-graphene composite negative current collector by introducing copper foil into high-temperature reaction device under traction drive of feeding device and discharging device, introducing protective gas and pre-heating.
  • 专利号:   CN107732249-A
  • 发明人:   BAI B, LI H, WANG H, ZHANG H, ZHANG S, ZHU Z
  • 专利权人:   ZHANG H
  • 国际专利分类:   C01B032/20, H01M004/583, H01M004/62, H01M004/66
  • 专利详细信息:   CN107732249-A 23 Feb 2018 H01M-004/66 201820 Pages: 9 Chinese
  • 申请详细信息:   CN107732249-A CN10810200 11 Sep 2017
  • 优先权号:   CN10810200

▎ 摘  要

NOVELTY - Method for preparing copper foil-graphene composite negative current collector involves introducing a copper foil into a high-temperature reaction device under the traction drive of a feeding device and a discharging device, introducing protective gas into the reaction device, pre-heating the high-temperature reaction device, introducing hydrocarbon gas into a high-temperature zone of the reaction device when the temperature of the high-temperature zone of the reaction device is 800-1000 degrees C, and pulling out the copper foil of the reaction device through the discharging device. USE - Method is useful for preparing copper foil-graphene composite negative current collector (claimed), which is useful in a lithium battery. ADVANTAGE - The method enables efficient preparation of copper foil-graphene composite negative current collector with excellent bonding strength. The copper foil-graphene composite negative current collector improves electric discharge performance of the battery and prolongs the service life of the battery. DETAILED DESCRIPTION - Method for preparing copper foil-graphene composite negative current collector involves introducing a copper foil into a high-temperature reaction device under the traction drive of a feeding device and a discharging device, introducing protective gas into the high-temperature reaction device, pre-heating the high-temperature reaction device, introducing hydrocarbon gas into a high-temperature zone of the reaction device when the temperature of the high-temperature zone of the reaction device is 800-1000 degrees C, and pulling out the copper foil of the high-temperature reaction device through the discharging device to obtain the copper foil-graphene composite negative current collector. An INDEPENDENT CLAIM is included for copper foil-graphene composite negative current collector prepared by the above method.