• 专利标题:   Positive electrode current collector for lithium secondary battery, preferably lithium ion battery, lithium polymer battery, and lithium metal battery, comprises tab extending from positive electrode current collector substrate.
  • 专利号:   WO2021187965-A1, KR2021117915-A, CN114503312-A, EP4024600-A1, US2023155134-A1
  • 发明人:   YUN H, HWANG S, HAH H, YUN H W, WOOK H S, HA H J, HE H, HUANG C
  • 专利权人:   LG ENERGY SOLUTION LTD, LG ENERGY SOLUTION LTD, LG ENERGY SOLUTION LTD
  • 国际专利分类:   H01M010/052, H01M004/02, H01M004/13, H01M004/66, H01M050/531, H01M050/571, H01M050/534, H01M010/0568, H01M004/62
  • 专利详细信息:   WO2021187965-A1 23 Sep 2021 H01M-050/571 202184 Pages: 20
  • 申请详细信息:   WO2021187965-A1 WOKR095008 20 Jan 2021
  • 优先权号:   KR034072, KR002734, CN80005776

▎ 摘  要

NOVELTY - Positive electrode current collector comprises a tab extending from a positive electrode current collector substrate, where an anti-corrosion layer consisting of primer layer, a conductive polymer layer, and a conductive epoxy layer is formed on the entire surface of the tab. USE - Positive electrode current collector for a lithium secondary battery, preferably lithium ion battery, lithium polymer battery, lithium metal battery, or lithium-free battery (all claimed). ADVANTAGE - The positive electrode current collector is capable of preventing corrosion that occurs frequently in a positive electrode current collector tab portion, and improves charge/discharge characteristics and flame retardancy. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a lithium secondary battery, which comprises positive electrode, a negative electrode having a negative electrode mixture layer formed on surface of the negative electrode current collector, a separator interposed between the anode and the cathode, and an electrode assembly comprising a lithium non-aqueous electrolyte.