• 专利标题:   Anode used for lithium secondary battery, comprises negative electrode mixture layer comprising silicon, and negative electrode active material including carbon material and silicon material containing silicon particles having preset particle diameter.
  • 专利号:   WO2022250326-A1, KR2022159587-A, EP4199141-A1, CN116349025-A
  • 发明人:   LEE S M, OH S S, KIM H H, JO C H, OH S, KIM H, ZHAO Z, LEE S
  • 专利权人:   LG ENERGY SOLUTION LTD, LG ENERGY SOLUTION LTD
  • 国际专利分类:   H01M010/052, H01M004/133, H01M004/134, H01M004/36, H01M004/38, H01M004/587, H01M004/62
  • 专利详细信息:   WO2022250326-A1 01 Dec 2022 H01M-004/134 202201 Pages: 27
  • 申请详细信息:   WO2022250326-A1 WOKR006458 06 May 2022
  • 优先权号:   KR067355, CN80006452

▎ 摘  要

NOVELTY - An anode comprises a negative electrode current collector, and a negative electrode mixture layer arranged on the negative electrode current collector and containing a negative electrode active material. The negative electrode active material includes at least one chosen form carbon material having an average particle diameter (D50) of 1-20 μ m, and a silicon material having average particle diameter (D50) of 1-20 μ m and containing silicon particles (a), and silicon particles (b) having average particle diameter (D50) of 30-500 nm. The negative electrode mixture layer contains 40 wt.% or less of silicon element based on the total weight. USE - Anode used for lithium secondary battery (claimed) used as power source for electric vehicles. Uses include but are not limited to hybrid electric vehicle, plug-in hybrid electric vehicle, electric bicycle, electric scooter and electric golf cart. ADVANTAGE - The anode provides battery having improved lifespan while increasing initial efficiency and capacity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a lithium secondary battery.