Composite cathode for low-temperature all-solid polymer lithium cells

Li Q; Imanishi N; Takeda Y; Hirano A; Yamamoto O

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Electrochemical and Solid State Letters, Vol.7, No.12, A470-A473, 2004

Composite cathode for low-temperature all-solid polymer lithium cells

Li Q, Imanishi N, Takeda Y, Hirano A, Yamamoto O

A novel composite cathode for all-solid polymer electrolyte cells has been proposed to operate at lower temperatures. The cathode consists of LiNi0.8Co0.2O2, high conductivity polymer electrolyte, and a boroxine ring containing compound BP(n) = B3O3[O(CH2CH2O)(n)(CH3)](3). The Li/polymer electrolyte/composite cathode cell could operate at a temperature as low as 40 degrees C and at current density of 0.1 mA/cm(2), achieving cathode capacities of over 130 mAh/g for LiNi0.8Co0.2O2. (C) 2004 The Electrochemical Society.