NONAQUEOUS ELECTROLYTE AND BATTERY INCLUDING THE SAME

• Main Authors: SUZUKI HIROTETSU, HOJO NOBUHIKO
• Format: Patent
• Language: English; Japanese
• Published: 06.12.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a nonaqueous electrolyte which can exhibit a performance as a nonaqueous electrolyte, and flame retardancy.SOLUTION: A nonaqueous electrolyte comprises: a nonaqueous solvent; and an alkali metal salt dissolved in the nonaqueous solvent. The nonaqueous solvent contains a perfluoro polyether, and a carbonate compound represented by the formula (1). A battery comprises: the nonaqueous electrolyte; a positive electrode including a positive electrode active material capable of occluding and releasing alkali metal cations; and a negative electrode including a negative electrode active material capable of occluding and releasing alkali metal cations. (Rfrepresents a hydrocarbon group with C1-3, having at least one H atom substituted with F; and Rfrepresents H, F, a hydrocarbon group with C1-3, or a hydrocarbon group with C1-3, having at least one H atom substituted with F.)SELECTED DRAWING: None 【課題】非水電解質としての性能と難燃性能とを共に発揮する非水電解質の提供。【解決手段】非水溶媒と、前記非水溶媒に溶解したアルカリ金属塩と、を含み、前記非水溶媒は、パーフルオロポリエーテルと、式（１）で表されるカーボネート化合物と、を含む、非水電解質。前記非水電解質と、アルカリ金属カチオンの吸蔵及び放出が可能な正極活物質を含む正極と、アルカリ金属カチオンの吸蔵及び放出が可能な負極活物質を含む負極と、を備える電池。（Ｒｆ１は、１つ以上のＨがＦに置換されたＣ１〜３の炭化水素基；Ｒｆ２は、Ｈ、Ｆ、Ｃ１〜３の炭化水素基又は、１つ以上のＨがＦに置換されたＣ１〜３の炭化水素基）【選択図】なし