abstract |
A nonaqueous electrolyte secondary battery includes positive and negativenelectrodes, a separator, a nonaqueous electrolyte provided by dissolving a lithium saltnin a nonaqueous solvent. The nonaqueous electrolyte contains a compound as shownnin the chemical formula below and has a boroxin ring and polyalkylene oxide chains:n nwhere AlK 1 , AlK 2 , AlK 3 are identical with or different from one another, each ofnAlK 1 , AlK 2 , AlK 3 representing one type of alkylene having a carbon number of 2 or 3,nand R' 1 , R' 2 , R' 3 are identical with or different from one another, each of R' 1 , R' 2 , R' 3 nrepresenting one type of alkyl having a carbon number of 1 or 2. |