• 专利标题:   Positive electrode for lithium air batteries, sets total outgassing amount rising desorption mass spectrometry performed at specific angle and at specific temperature to specific value, and brunauer-emmett teller (BET) specific surface area of porous carbon material to specific value.
  • 专利号:   WO2023282326-A1
  • 发明人:   HIROTOMO N, WEI Y
  • 专利权人:   UNIV TOHOKU
  • 国际专利分类:   H01M012/08, H01M004/88, H01M004/96
  • 专利详细信息:   WO2023282326-A1 12 Jan 2023 H01M-004/96 202310 Pages: 44 Japanese
  • 申请详细信息:   WO2023282326-A1 WOJP026972 07 Jul 2022
  • 优先权号:   JP113982

▎ 摘  要

NOVELTY - The positive electrode (10) has a porous carbon film (12) containing a porous carbon material. The total outgassing amount rising desorption mass spectrometry (TPD-MS) which is performed at 1,800 degree Celsius at a temperature rising rate of 10 degree Celsius/min, is set to 0.60mmol/g or less total outgassing amount. A BET specific surface area of the porous carbon material is 500-2600m2/g. USE - Positive electrode for lithium air batteries. ADVANTAGE - Low charge overvoltage, high capacity, and high cycle life of the battery are attained. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the lithium air battery. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the lithium air battery. (Drawing includes non-English language text) 10Positive electrode 12Porous carbon film 14Positive electrode current collector 20Negative electrode 100Lithium air battery