Patent · US Active

Electrolytic copper foil having high tensile strength, electrode including the same, secondary battery including the same, and method of manufacturing the same

US10403898B2 · kind B2 · utility

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Key dates

Filing dateJul 27, 2017
Grant dateSep 3, 2019
Priority date
Expiry dateMar 31, 2038

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/10
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A high strength electrolytic copper foil preventing generation of folds, wrinkles, pleats, and breaks during a roll-to-roll (RTR) process, a method of manufacturing the same, and an electrode and a secondary battery which allow high productivity to be secured by being manufactured with such an electrolytic copper foil. The electrolytic copper foil includes a copper film including 99 weight % or more of copper and a protective layer on the copper film, wherein the electrolytic copper foil has a tensile strength of 45 to 65 kgf/mm2.

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