角型非水電解液二次電池

Title:

角型非水電解液二次電池

Document Type and Number:

Japanese Patent JP4567822

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a rectangular nonaqueous electrolyte secondary battery restraining inflation during preservation at high temperatures and an increase in impedance while maintaining various characteristics such as cycle characteristic. SOLUTION: In a rectangular nonaqueous electrolyte secondary battery having a positive electrode 6, a negative electrode 4, a separator 5 and a nonaqueous electrolytic solution, the nonaqueous electrolytic solution contains lithium tetrafluoroborate with a concentration of 0.05 to 0.3 mol/L and a lithium hexafluorophosphate electrolyte with a concentration of 0.75 mol/L or more, with the total concentration of the electrolyte 1.3 mol/L or less.

Inventors:

Takahiro Yamamoto
Takayuki Nakashima

Application Number:

JP7928199A

Publication Date:

October 20, 2010

Filing Date:

March 24, 1999

Export Citation:

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