• 专利标题:   Lithium iron phosphate anode sheet for preparing lithium iron phosphate positive plate used in lithium battery, contains specified amount of particles having specified particle number, grain diameter and grain diameter.
  • 专利号:   WO2021190490-A1, CN113451548-A, CN113451548-B, KR2022159413-A, IN202227060465-A, EP4131497-A1, US2023115744-A1, JP2023519287-W
  • 发明人:   PAN Y, YE C, CHEN S, PAN J, YES C, CLOTH S, FAN Y
  • 专利权人:   BYD CO LTD, BYD CO LTD, BYD CO LTD, BYD CO LTD
  • 国际专利分类:   H01M010/0525, H01M004/58, H01M004/04, H01M004/1397, H01M004/136, C01G049/00, H01M004/62, H01M010/0567, H01M004/525, H01M010/052, H01M004/36, H01M004/66
  • 专利详细信息:   WO2021190490-A1 30 Sep 2021 H01M-004/58 202187 Pages: 22 Chinese
  • 申请详细信息:   WO2021190490-A1 WOCN082345 23 Mar 2021
  • 优先权号:   CN10219542, KR736935

▎ 摘  要

NOVELTY - Lithium iron phosphate positive electrode sheet comprises 70-90% lithium iron phosphate particles having a particle size of 50-500 nm, 5-20% lithium iron phosphate particles having a particle size of 500-1000 nm, and 2-10% lithium iron phosphate particles having a particle size of 1-10 mu m. USE - Lithium iron phosphate anode sheet used in a lithium battery for electric passenger car, electric large vehicle and electric special vehicle (claimed). ADVANTAGE - The lithium iron phosphate anode sheet has high working voltage, high energy density, long service life, wide working temperature range and environment-friendly, and excellent cycle performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a lithium iron phosphate positive electrode sheet, which involves which involves coating a slurry containing lithium iron phosphate particles, a conductive agent, a binder, and a solvent on a positive electrode current collector and pressing the sheet.