| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide both the effect of suppressing the end-of-charging voltage by an electrochemical reaction, and the effect of uniformizing the discharge capacity in a nonaqueous electrolyte battery. <P>SOLUTION: The nonaqueous electrolyte takes a liquid or gel form and comprises: a nonaqueous solvent; an electrolytic salt; an overcharge-control agent such that an oxidation-reduction reaction is caused at a predetermined potential; and at least one compound selected from the group consisting of the additive compounds (1)-(4). In the compounds, R21 and R23 are independently an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic ring group, or an alkyl group, an alkenyl group or an alkynyl group which is substituted by an aromatic hydrocarbon group or an alicyclic hydrocarbon group, or a halogenated group thereof, and R22 is a straight or branched chain of an alkylene group, an arylene group, a divalent group including an arylene group and an alkylene group, or a halogenated group thereof. <P>COPYRIGHT: (C)2013,JPO&INPIT |
