[EN] CYCLIC QUATERNARY AMMONIUM SALT, NONAQUEOUS SOLVENT, NONAQUEOUS ELECTROLYTE, AND POWER STORAGE DEVICE<br/>[FR] SEL D'AMMONIUM QUATERNAIRE CYCLIQUE, SOLVANT NON AQUEUX, ÉLECTROLYTE NON AQUEUX ET DISPOSITIF DE STOCKAGE D'ÉNERGIE
申请人:SEMICONDUCTOR ENERGY LAB
公开号:WO2013162040A1
公开(公告)日:2013-10-31
To provide an ionic liquid which has at least one of properties such as high ionic conductivity, a small reduction in ionic conductivity at a low temperature, a low melting point, and a low viscosity. To provide a power storage device having higher initial charge and discharge efficiency than a power storage device containing a conventional ionic liquid. A cyclic quaternary ammonium salt is liquid at room temperature and contains a quaternary spiro ammonium cation having an asymmetrical structure including two aliphatic rings and one or more substituents bonded to one or both of the two aliphatic rings and an anion corresponding to the quaternary spiro ammonium cation. The power storage device includes a positive electrode, a negative electrode, and a nonaqueous electrolyte containing the cyclic quaternary ammonium salt as a nonaqueous solvent.
提供一种具有高离子导电性、低温下离子导电性小、低熔点和低粘度等性质的离子液体。提供一种具有比含传统离子液体的电源储存装置更高的初始充放电效率的电源储存装置。一种环状季铵盐在室温下为液态,包含一个具有两个脂环和一个或多个取代基连接到两个脂环之一或两者之一的不对称结构的季铵螺烷阳离子和与季铵螺烷阳离子对应的阴离子。该电源储存装置包括正极、负极和包含环状季铵盐作为非水溶剂的非水电解质。