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Nonaqueous electrolyte secondary battery

2025-06-24 11:334290下载
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PROBLEM TO BE SOLVED : To provide a nonaqueous electrolyte secondary battery containing a positive electrode active material composed of two kinds of active materials of different particle sizes, excellent in cycle characteristics, and resistant to battery swelling during high-temperature storage. SOLUTION : The nonaqueous electrolyte secondary battery comprises a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material, and a nonaqueous electrolyte. The positive electrode active material contains positive electrode active materials A and B represented by the formula : LiaCo1-xMxO2, where 0
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