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AssigneeThe Johns Hopkins University
InventorsPeter Searson, Jeffrey Gilbert Killian, Haripada Sarker, Jennifer Giaccai, Yossef Gofer, Theodore O. Poehler
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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.
An electrochemical storage cell comprising as at least one electrode at least one electrically conductive polymer, said at least one electrically conductive polymer comprising at least one fluorophenyl polythiophene selected from the group consisting of poly(3(2-fluorophenyl) thiophene), poly(3(3-fluorophenyl) thiophene), poly(3(2,4-difluorophenyl) thiophene), poly(3(3,4-difluorophenyl) thiophene), poly(3(3,5-difluorophenyl) thiophene), and poly(3(3,4,5-trifluorophenyl)thiophene).
An electrochemical storage cell comprising a polymeric anode and a polymeric cathode, said anode and said cathode each comprising at least one fluorophenyl polythiophene selected from the group consisting of poly(3(2-fluorophenyl) thiophene), poly(3(3 fluorophenyl) thiophene), poly(3(2,4-difluorophenyl) thiophene), poly(3(3,4-difluorophenyl) thiophene), poly(3(3,5-difluorophenyl) thiophene), and poly(3(3,4,5-trifluorophenyl)thiophene).
An electrode comprising at least one fluorophenyl polythiophene selected from the group consisting of poly (3(2-fluorophenyl) thiophene) , poly((3-fluorophenyl)thiophene), poly(3(2,4-difluorophenyl) thiophene), poly(3(3,4-difluorophenyl) thiophene), poly(3(3,5-difluorophenyl) thiophene), and poly(3(3,4,5-trifluorophenyl) thiophene).
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