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Nano-sized LiMn 2 O 4 particles were prepared at 1023K by electrospray pyrolysis in which they were directly deposited on a Pt substrate in gas phase. Cyclic voltammetry gave very sharp and symmetrical redox peaks at ca. 4.0 and 4.1V vs. Li/Li + owing to the insertion and extraction of lithium-ion at LiMn 2 O 4 . However, the redox peaks broadened and their...
The discharge characteristics of a Li/Li y CoO 2 cell were simulated by numerical calculations. Based on the program proposed by Newman's group, the change in entropy due to lithium-ion insertion into the active materials was introduced into the open-circuit potential (OCP) for more practical applications. The OCP of LiCoO 2 (y=1) at a full-discharge state was 3.82V, which...
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