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US 2015/0318577 A1Published application
Secondary battery
AssigneeNEC Corporation
InventorsShinsaku SAITHO, Hitoshi ISHIKAWA, Kazuhiko INOUE
Life of this patent
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Abstract
The present invention relates to an electrolyte solution for a lithium secondary battery, which contains a sulfonate compound represented by a specific formula and carboxylic anhydride having one or more C═C double bonds, and a lithium secondary battery using the same.
Claims9
An electrolyte solution for a lithium secondary battery, comprising:
- a sulfonate compound represented by formula (1), and
- a carboxylic anhydride having one or more C═C double bonds;
- wherein R1 and R2 each independently represent an alkylene group having 1 to 5 carbon atoms.
A method for manufacturing a lithium secondary battery having an electrode element, an electrolyte solution, and an outer package, comprising:
- preparing an electrode element by arranging a positive electrode and a negative electrode to face to each other, and
- sealing the electrode element and a non-aqueous electrolyte solution containing a sulfonate compound represented by formula (1) and a carboxylic anhydride having one or more C═C double bonds in the outer package,
- wherein R1 and R2 each independently represent an alkylene group having 1 to 5 carbon atoms.
Dependencies are inferred from the claim text.