Patent · US Active

Method for improving lifespan of lithium secondary battery

US11322811B2 · kind B2 · utility

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9Claims
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Key dates

Filing dateNov 6, 2018
Grant dateMay 3, 2022
Priority date
Expiry dateAug 30, 2039

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P70/50
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A method for enhancing a lifetime of a lithium secondary battery including manufacturing a battery by injecting an electrolyte liquid to an electrode assembly-embedded battery; and charging and discharging the manufactured battery; and additionally injecting an electrolyte liquid earlier than half a cycle point with respect to the number of charge and discharge cycles reaching discharge capacity of 80% compared to initial capacity is provided.

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