LiFePO4 water-soluble binder electrode for Li-ion batteries |
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Authors: | A. Guerfi M. Kaneko M. Petitclerc M. Mori K. Zaghib |
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Affiliation: | 1. Institut de Recherche d’Hydro-Québec, 1800 Lionel-Boulet, Varennes, Que. J3X 1S1, Canada;2. ZEON Corporation, R&D Center, 1-2-1 Yako, Kawasaki, Kanagawa 210-9507, Japan |
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Abstract: | A new water-soluble elastomer from ZEON Corp. was evaluated as binder with LiFePO4 cathode material in Li-ion batteries. The mechanical characteristic of this cathode was compared to that with PVdF-based cathode binder. The elastomer-based cathode shows high flexibility with good adhesion. The electrochemical performance was also evaluated and compared to PVdF-based cathodes at 25 and at 60 °C. A lower irreversible capacity loss was obtained with the elastomer-based cathode, however, aging at 60 °C shows a comparable cycle life to that observed with PVdF-based cathodes. The LiFePO4–WSB at high rate shows a good performance with 120 mAh g−1 at 10C rate at 60 °C. |
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Keywords: | Water-soluble binder LiFePO4 Li-ion 60 ° C |
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