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Secondary cell negative electrode and its manufacturing method, a secondary battery using the same

2025-06-18 19:114700下载
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PROBLEM TO BE SOLVED : To provide a nonaqueous electrolyte secondary battery excellent in cycle characteristics and storage characteristics by improving a film formation additive.SOLUTION : A negative electrode for lithium secondary battery contains a film formation additive represented by formula (1) in a range of 0.001-5.0 mass% for a negative electrode active material. A secondary battery uses the same. [R, Rare independently straight or branch alkyl group, a phenyl group or a glycidyl group of 1C-4C, Ris an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic group, a benzyl group, -CH-C(=O)-X, -CH-C(=O)O-X, dithiol group, a phthalimide alkyl group, a benzylidene aminoalkyl group or a benzoxazolyl group, X is an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic group or a benzyl group, and R, Rand Rmay have a substituent group.


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