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Yuki Kato, Takenobu Ishihara, Hiromasa Ikuta, Yoshiharu Uchimoto and Masataka Wakihara A High Electrode-Reaction Rate for High-Power-Density Lithium-Ion Secondary Batteries by the Addition of a Lewis Acid Angewandte Chemie International Edition 43

Version of Record online: 30 MAR 2004 | DOI: 10.1002/anie.200353220

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A salt and battery: The charge-transfer reaction at the electrode/electrolyte interfaces is important in the fabrication of high-power-density lithium-ion secondary batteries. This reaction rate is increased by adding a poly(ethylene glycol)–borate ester Lewis acid to the electrolyte. Because the Lewis acid interacts preferentially with anions (X), an increase in the activity of lithium ions is induced by enhancing the dissociation of lithium salts (Li+X, see scheme).

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