A series of carbon-containing cathode materials were prepared using a solid-state reaction by adding carbon black to the synthetic precursors. The local structural change of electrochemically prepared samples has been investigated by X-ray absorption spectroscopy. The results showed that the local structural change of manganese is completely reversible during the charge-discharge processes. According to the analysis of K-edge X-ray absorption fine structure, no significant difference is observed in the local structure of manganese in the charged state over the entire manganese content range.
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Li et al. (2002) studied this question.
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