• 专利标题:   Lithium or sodium-based battery used for e.g. portable electronic device, comprises anode at least partially covered on its side facing electrolyte by at least one artificial solid-electrolyte interphase layer with layer(s) of porous graphene with pores having preset average characteristic width.
  • 专利号:   WO2022184807-A1
  • 发明人:   CHOI K, HEIGHT M J
  • 专利权人:   HEIQ MATERIALS AG
  • 国际专利分类:   B82Y040/00, C01B032/184, C23C016/02, H01M010/052, H01M010/054, H01M010/056, H01M010/0562, H01M010/058, H01M010/42, H01M004/02, H01M004/04, H01M004/133, H01M004/134, H01M004/36, H01M004/38, H01M004/587, H01M004/62, H01M004/66, H01M004/70, H01M004/72
  • 专利详细信息:   WO2022184807-A1 09 Sep 2022 H01M-010/052 202277 Pages: 43 English
  • 申请详细信息:   WO2022184807-A1 WOEP055347 03 Mar 2022
  • 优先权号:   EP160707

▎ 摘  要

NOVELTY - Lithium or sodium-based battery comprises an anode at least partially covered on its side facing an electrolyte by at least one artificial solid-electrolyte interphase layer with at least one layer of porous graphene having a thickness of less than 25 nm with pores having an average characteristic width as defined in the specification in the range of 1-1000 nm. USE - Lithium or sodium-based battery used for portable electronic device and high-capacity long-lasting electric energy storage device. Uses include but are not limited to computer CPU, LED light source, tablet personal computer, and mobile phone. ADVANTAGE - The lithium or sodium-based battery has high specific capacity of 3860 mAh.g-1, high energy density, and excellent rapid charging property and durability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: use of the layer of porous graphene with pores as the artificial solid-electrolyte interphase layer, in the battery, preferably lithium-based or sodium-based battery, and solid-state battery; and manufacture of the battery, which involves providing a catalytically active substrate to catalyze the graphene formation under chemical vapor deposition conditions, providing catalytically active substrate on its surface with several catalytically inactive domains containing a nanostructure essentially corresponding to the shape of the pores in the resultant porous graphene layer, performing chemical vapor deposition by using a carbon source in the gas phase and forming the porous graphene layer on the surface of the catalytically active substrate, forming the pores in the porous graphene layer due to the presence of the catalytically inactive domains, and using the catalytically active substrate with the porous graphene layer as the anode with an artificial solid-electrolyte interphase layer in the form of the porous graphene layer. The catalytically active substrate comprises a copper-nickel alloy substrate comprising 98-99.96 wt.% copper and 0.04-2 wt.% nickel.