The Johns Hopkins University

Jeffrey Gilbert Killian

Peter C Searson

Theodore O Poehler

Haripada Sarker

Jennifer Giaccai

Yosef Gofer

Robert R Oberle

Walkiria S Schlindwein

Brendan M Coffey

Yossef Gofer

A method of manufacture of an electrode formed from at least one electrically conductive polymer having a lower, polymerization potential than p-doping peak. The method of manufacture of the electrode including a conditioning step which results in remarkably high charge capacities and excellent cycling efficiency. The provision of these polymeric electrodes further permits the manufacture of an electrochemical storage cell which is substantially free of metal components, thereby improving handling of the storage cell and obviating safety and environmental concerns associated with alternative secondary battery technology.

Method for electrochemical conditioning polymeric electrodes

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.

Electrochemical storage cell containing at least one electrode

An electrochemical storage cell or battery including as at least one electrode at least one electrically conductive polymer, the polymer being poly (3(2-fluorophenyl)thiophene), poly(3(3-fluorophenyl) thiophene), poly(3(2,4-fluorophenyl) thiophene), poly(3(3,4-difluorophenyl) thiophene), poly(3(3,5-difluorophenyl) thiophene), or poly(3(3,4,5-trifluorophenyl)thiophene). These polymeric electrodes have remarkably high charge capacities, and excellent cycling efficiency. The provision of these polymeric electrode 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.

This invention provides a method for producing a quasi-solid state charge storage device capable of being repeatedly charged and discharged, having one or more electrochemical cells with a structure capable of being stacked or combined to form primary or secondary battery devices, each cell composed entirely of an ionically conducting gel polymer electrolyte layer separating opposing surfaces of electronically conducting conjugated polymeric anode and cathode electrodes supported on lightweight porous substrates; a method of forming conjugated polymers into large area composite electrode structures with practical levels of charge storage capacity; and a quasi-solid state charge storage device produced by the above methods.

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Baltimore, MD, United States of America

Jeffrey Gilbert Killian