Non-aqueous electrolyte secondary battery
AssigneeGS Yuasa Corporation
InventorSumio Mori
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Abstract
A non-aqueous electrolyte secondary battery according to the present invention is characterized by including a non-aqueous electrolyte which contains at least one of vinylene carbonate derivatives at a concentration of 1 wt % or less and at least one of cyclic sulfates at a concentration of 2 wt % or less. According to the present invention, a non-aqueous electrolyte secondary battery having excellent discharge characteristics at a low temperature can be obtained.
Claims20
A non-aqueous electrolyte secondary battery comprising a non-aqueous electrolyte which contains at least one of vinylene carbonate derivatives represented by Chemical Formula 1 at a concentration of 1 wt % or less and at least one of cyclic sulfates represented by Chemical Formula 2 at a concentration of 2 wt % or less.
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A method for producing a non-aqueous electrolyte secondary battery, wherein an electrode is brought into contact with a non-aqueous electrolyte which contains at least one of vinylene carbonate derivatives represented by Chemical Formula 1 at a concentration of 1 wt % or less and at least one of cyclic sulfates represented by Chemical Formula 2 at a concentration of 2 wt % or less, at least at a certain time during a period from when the electrolyte is initially brought into contact with the electrode to when the electrolyte can not be added because the battery case is completely sealed.
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Dependencies are inferred from the claim text.