Electrochemical storage cell containing at least one electrode formulated from a phenylene-thienyl based polymer

US6120940A · kind A · utility

Assignee

• THE JOHNS HOPKINS UNIVERSITY · US

Inventors

• Theodore O. Poehler · Baltimore, US
• Peter C. Searson · Baltimore, US
• Jeffrey G. Killian · Baltimore, US
• Haripada Sarker · Baltimore, US
• Jennifer Giaccai · Baltimore, US
• Yosef Gofer · Hod HaSharon, IL

Key dates

• Filing date: Oct 30, 1997
• Grant date: Sep 19, 2000
• Expiry date: Oct 30, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49108
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An electrochemical storage cell or battery including as at least one electrode at least one electrically conductive polymer, the polymer being poly(1,4-bis(2-thienyl)-3-fluorophenylene), poly(1,4-bis(2-thienyl)-2,5-difluorophenylene), poly(1,4-bis(2-thienyl)-2,3,5,6-tetrafluorophenylene), or poly(1,4-bis(2-thienyl)-benzene). These polymeric electrodes have remarkably high charge capacities, and excellent cycling efficiency. The provision of these polymeric electrodes further permits the electrochemical storage cell to be substantially free of metal components, thereby improving handling of the storage cell and obviating safety and environmental concerns associated with alternative secondary battery technology.