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POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, NONAQUEOUS ELECTROLYTE BATTERY INCLUDING THE SAME, AND PLUG-IN HYBRID VEHICLE MOUNTED WITH THE BATTERY
POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, NONAQUEOUS ELECTROLYTE BATTERY INCLUDING THE SAME, AND PLUG-IN HYBRID VEHICLE MOUNTED WITH THE BATTERY
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机译:用于非电解质电池的正极,包括该电解质的非电解质电池以及装有该电池的插电式混合动力汽车
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摘要
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery maintaining excellent output characteristics, specifically even in a low SOC region and even in-long term use, in addition to high energy density and safety.SOLUTION: A positive electrode for a nonaqueous electrolyte battery contains: a first active material having an -NaFeOtype crystal structure and comprising a lithium transition metal composite oxide represented by composition formula: LiMeO(where, Me represents a transition metal element including Co, Ni and Mn, and 0 is satisfied); and a second active material having a discharge potential region baser than that of the first active material, and comprising a phosphoric acid transition metal lithium compound. The second active material has a crystallite diameter as determined by X-ray diffraction measurement of 0.2 m or less, and a ratio of the mass of the second active material relative to the sum of the mass of the first active material and the mass of the second active material is less than 20%.
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