• 专利标题:   Preparing graphene-coated magnesium oxide material MgO-C used in e.g. metal-gas battery and gas battery, comprises igniting magnesium strips or magnesium powder in carbon dioxide atmosphere, collecting ignited products and sieving to remove unreacted metal magnesium.
  • 专利号:   CN116190689-A
  • 发明人:   LIU W, XU R
  • 专利权人:   UNIV BEIJING SCI TECHNOLOGY
  • 国际专利分类:   B82Y030/00, B82Y040/00, H01M012/08, H01M004/86, H01M004/90
  • 专利详细信息:   CN116190689-A 30 May 2023 H01M-004/90 202354 Chinese
  • 申请详细信息:   CN116190689-A CN10194410 02 Mar 2023
  • 优先权号:   CN10194410

▎ 摘  要

NOVELTY - Preparing graphene-coated magnesium oxide material MgO-C comprises (i) igniting magnesium strips or magnesium powder in a carbon dioxide atmosphere, collecting the ignited products and passing through a 50-800 mesh sieve to remove unreacted metal magnesium to obtain graphene-coated magnesium oxide material MgO-C, (b) placing magnesium strips or magnesium powder in a tube furnace, passing through a carbon dioxide atmosphere, and heating to 400-1000℃, and obtaining graphene-coated magnesium oxide material MgO-C with different particle sizes at different temperatures. USE - The magnesium oxide material is used as cathode material of metal-gas battery and in non-cathode gas battery and/or non-anode gas batteries (claimed). ADVANTAGE - The magnesium oxide material has excellent catalytic performance, and does not generate oxygen when charging, and avoids the need of oxygen in the environment. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a gas battery prepared by the graphene-coated magnesium oxide material; graphene nano-cage material prepared by the graphene-coated magnesium oxide material; preparing metal-gas battery cathode sheet containing a graphene nanocage material or a composite nanocage structure catalytic material of graphene and metal,