Electrolytic solution and battery using it
AssigneeSony Corporation
InventorShinsaku Ugawa
Life of this patent
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Abstract
The invention provides an electrolytic solution and a battery, which can sufficiently improve cycle characteristics. The battery comprises an electrode winding body, wherein a cathode and an anode are layered and wound sandwiching a separator inside a battery can. The electrolytic solution is impregnated in the separator. The electrolytic solution contains a high dielectric constant solvent comprised of at least either ethylene carbonate or propylene carbonate; dimethyl carbonate; and diphenyl carbonate at a mass ratio of 5 to 40:58 to 93: more than 0 to 5.
Claims4
An electrolytic solution, wherein a high dielectric constant solvent comprised of at least either ethylene carbonate or propylene carbonate;
- dimethyl carbonate;
- and diphenyl carbonate are contained at a mass ratio of 5 to 40:58 to 93:
- more than 0 to 5.
An electrolytic solution, wherein a solvent containing a high dielectric constant solvent comprised of at least either ethylene carbonate or propylene carbonate of 5 wt % to 40 wt %;
- dimethyl carbonate of 58 wt % to 93 wt %;
- and diphenyl carbonate of 5 wt % or less is contained.
A battery, comprising:
- a cathode;
- an anode;
- and
- an electrolytic solution,
- wherein the electrolytic solution contains a high dielectric constant solvent comprised of at least either ethylene carbonate or propylene carbonate;
- dimethyl carbonate;
- and diphenyl carbonate at a mass ratio of 5 to 40:58 to 93:
- more than 0 to 5.
A battery, comprising:
- a cathode;,
- an anode;
- and
- an electrolytic solution,
- wherein the electrolytic solution contains a solvent containing a high dielectric constant solvent comprised of at least either ethylene carbonate or propylene carbonate of 5 wt % to 40 wt %;
- dimethyl carbonate of 58 wt % to 93 wt %;
- and diphenyl carbonate of 5 wt % or less.
Dependencies are inferred from the claim text.