Patent · US Active

Cathode for lithium secondary battery, lithium secondary battery including the same and method of fabricating lithium secondary battery

US11978899B2 · kind B2 · utility

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11Claims
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Key dates

Filing dateApr 12, 2023
Grant dateMay 7, 2024
Priority date
Expiry dateApr 12, 2043

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A cathode for a lithium secondary battery according to an embodiment of the present invention includes a cathode current collector, and a cathode active material layer on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles include first lithium metal oxide particles having a shape of a secondary particle in which a plurality of primary particles are aggregated, and second lithium metal oxide particles having a shape of a single particle. A closed pore ratio of the cathode active material layer is 5% or less.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.