Cobalt doped chromium oxides were synthesized and characterized as cathode materials for secondary lithium batteries. A small amount of Co as dopant in the chromium oxides provides greater stability to the structure of CrO_x and helps in improving the high-rate behavior of these oxides. Co_0.2 CrO_x exhibited an initial capacity of 260 mAh/g with an average discharge voltage of 3.0 V vs. Li/Li~+. The lithiated Co_0.2CrO_x exhibited an initial capacity of 230 mAh/g. Both lithiated and non-lithated Co_0.2CrO_x were found to be reversible in the entire intercalation range (2.0-4.2 V vs. Li/Li~+). Compared with CrO_x, Co doped CrO_x is characterized by better high-rate behavior. (>85
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机译：合成了钴掺杂的氧化铬，并将其表征为二次锂电池的正极材料。铬氧化物中的少量Co作为掺杂剂可为CrO_x的结构提供更大的稳定性，并有助于改善这些氧化物的高速率行为。 Co_0.2 CrO_x的初始容量为260 mAh / g，平均放电电压为3.0 V vs. Li / Li〜+。锂化的Co_0.2CrO_x表现出230mAh / g的初始容量。发现锂化和非锂化的Co_0.2CrO_x在整个插入范围内（2.0-4.2 V vs. Li / Li〜+）都是可逆的。与CrO_x相比，Co掺杂CrO_x具有更好的高倍率性能。 （> 85
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