| US 7,615,311 B2 | ||
| Non-aqueous electrolyte and electrochemical device using the same | ||
| Shinji Nakanishi, Osaka (Japan); and Hizuru Koshina, Osaka (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Filed on Feb. 23, 2006, as Appl. No. 11/359,416. | ||
| Claims priority of application No. 2005-046787 (JP), filed on Feb. 23, 2005. | ||
| Prior Publication US 2006/0188787 A1, Aug. 24, 2006 | ||
| Int. Cl. H01M 6/04 (2006.01) | ||
| U.S. Cl. 429—188 [429/33; 429/206] | 4 Claims |
| 1. A non-aqueous electrolyte comprising: a first solute; a second solute; and an organic solvent dissolving said first solute
and said second solute,
wherein said first solute is a salt having at least one fluorine atom in an anion moiety thereof, and said second solute is
an inorganic borate having at least one boron atom and at least one oxygen atom in an anion moiety thereof, and said inorganic
borate comprises at least one selected from the group consisting of:
a diborate represented by Mw(B2O5) (4)
where M is an alkali metal or an alkaline earth metal; when M is an alkali metal, w=4, and when M is an alkaline earth metal,
w=2;
a pentaborate represented by LB5O7 (5)
where L is an alkali metal; and
a hypoborate represented by Mu(B2O4) (6)
where M is an alkali metal or an alkaline earth metal; when M is an alkali metal, u=4, and when M is an alkaline earth metal,
u=2.
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