• 专利标题:   Preparing graphene-containing mixed film, comprises e.g. using strong oxidant to oxidize layered graphite powder to form layered graphene oxide with carbonyl, carboxyl and epoxy groups, and mixing Dimethylformamide and graphene oxide.
  • 专利号:   TW202134176-A, TW775056-B1
  • 发明人:   LIN C, LIU T, CHUANG Y, WEI H, HSU N
  • 专利权人:   INST NUCLEAR ENERGY RES ATOMIC ENERGY CO
  • 国际专利分类:   B01D067/00, B01D069/02, B01D071/02, B01D071/68, B01F011/02, B01F003/12, B82Y030/00, B82Y040/00, C01B032/198, C08J003/20, C08J005/22, C08J009/28, C08K003/04, C08L081/06, H01M002/16, H01M008/02, H01M008/18
  • 专利详细信息:   TW202134176-A 16 Sep 2021 C01B-032/198 202100 Pages: 22 Chinese
  • 申请详细信息:   TW202134176-A TW107473 06 Mar 2020
  • 优先权号:   TW107473

▎ 摘  要

NOVELTY - A method is provided to fabricate a mixed membrane. The membrane contains graphene. The membrane is used as a separator in a vanadium redox flow battery. The present invention aims at developing a nano-porous membrane. The material of the membrane itself is mostly selected from polysulfone (PSF) and polyvinylidenefluoride (PVDF). Then, phase inversion is used to form a porous proton-exchange membrane (polysulfone membrane). The porous proton-exchange membrane obtained in this way has its pore size controlled by using different concentrations of polysulfone polymer. Regarding the improvement in hydrophilicity, the present invention improves the hydrophilicity of polysulfone polymer when raw materials are being prepared. Thus, with the mixed hydrophilic graphene oxide (GO), the possibility of modifying the hydrophilicity of the main body is proved by the experiments that followed. The efficiencies of voltage and energy of the porous proton-exchange membrane are improved.