| 摘要 |
Disclosed is a di-tert-butylphenyl alkyl sulfonate compound, a tert-butylphenyl alkyl sulfonate compound, a di-tert-butylphenyl aryl sulfonate compound or a tert-butylphenyl aryl sulfonate compound, which is useful as a pharmaceutical product, an agricultural chemical, an intermediate raw material for polymer materials or a battery material. Also disclosed are a nonaqueous electrolyte solution for lithium secondary batteries using such a compound and having excellent battery characteristics such as cycle characteristics, and a lithium secondary battery. Specifically disclosed is a nonaqueous electrolyte solution for lithium secondary batteries, which is characterized in that not less than 0.01% by mass but not more than 10% by mass of a di-tert-butylphenyl alkyl sulfonate compound, a tert-butylphenyl alkyl sulfonate compound, a di-tert-butylphenyl aryl sulfonate compound or a tert-butylphenyl aryl sulfonate compound is contained in a nonaqueous electrolyte solution which is obtained by dissolving an electrolyte salt into a nonaqueous solvent. Also specifically disclosed are a lithium secondary battery and a compound. |
