• 专利标题:   Preparing iron phosphide/carbon-gallium composite material used in battery manufacturing involves mixing iron powder, red phosphorus and expanded graphite, performing high-speed ball milling, dispersing iron phosphide/carbon composite material in graphene oxide dispersion, washing and freeze-drying.
  • 专利号:   CN116053432-A
  • 发明人:   LIU Y, TANG J, HAN L, XI R, LIN C
  • 专利权人:   UNIV GUANGDONG POLYTECHNIC NORMAL TIANHE
  • 国际专利分类:   H01M010/0525, H01M004/36, H01M004/58, H01M004/62
  • 专利详细信息:   CN116053432-A 02 May 2023 H01M-004/36 202345 Chinese
  • 申请详细信息:   CN116053432-A CN11699608 28 Dec 2022
  • 优先权号:   CN11699608

▎ 摘  要

NOVELTY - Preparing iron phosphide/carbon-gallium (GA) composite material, comprises (a) mixing iron powder, red phosphorus and expanded graphite under an argon atmosphere to obtain a mixed powder, and performing high-speed ball milling to obtain an iron phosphide/carbon composite material; (b) dispersing the iron phosphide/carbon composite material in the graphene oxide dispersion, adding ascorbic acid and heating, and removing the water to obtain the untreated iron phosphide/carbon-GA composite material; and (c) washing repeatedly the untreated iron phosphide/carbon-GA composite material with deionized water, and freeze-drying. USE - The iron phosphide/carbon-gallium (GA) composite material is useful in battery manufacturing (claimed). ADVANTAGE - The method can realize the rapid preparation of iron phosphide/carbon-gallium (GA) composite material, improves conductivity and alleviate the phenomenon of volume expansion during charging and discharging. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for iron phosphide/carbon-gallium (GA) composite material.