Abstract: An object is to provide a non-aqueous electrolyte solution that can improve the capacity deterioration and gas generation associated with the high-temperature storage of non-aqueous electrolyte batteries. A further object is to provide a non-aqueous electrolyte battery that uses this non-aqueous electrolyte solution. These objects can be achieved by using a non-aqueous electrolyte solution that incorporates, in prescribed contents, (A) a compound having at least two isocyanate groups per molecule and (B) a compound of formula (3): LiCnF2n+1SO3??(3) wherein n is an integer from 0 to 4.

Abstract: Disclosed herein is a non-aqueous electrolyte secondary battery containing at least a positive electrode capable of the absorbing and releasing of a lithium ion, a negative electrode capable of the absorbing and releasing of the lithium ion, and a non-aqueous electrolyte solution containing a non-aqueous solvent and an electrolyte dissolved in the non-aqueous solvent, where the negative electrode contains a carbonaceous material, and the non-aqueous electrolyte solution contains, in addition to an electrolyte and a non-aqueous solvent: (A) a compound having at least two isocyanate groups per molecule, (B) a monofluorophosphate salt or a difluorophosphate salt, at from 0.001 mass % or more to 5 mass % or less in the non-aqueous electrolyte solution.

Abstract: Disclosed herein is a non-aqueous electrolyte secondary battery containing at least a positive electrode capable of the absorbing and releasing of a lithium ion, a negative electrode capable of the absorbing and releasing of the lithium ion, and a non-aqueous electrolyte solution containing a non-aqueous solvent and an electrolyte dissolved in the non-aqueous solvent, where the negative electrode contains a carbonaceous material, and the non-aqueous electrolyte solution contains, in addition to an electrolyte and a non-aqueous solvent: (A) a compound having at least two isocyanate groups per molecule, (B) a monofluorophosphate salt or a difluorophosphate salt, at from 0.001 mass % or more to 5 mass % or less in the non-aqueous electrolyte solution.

Abstract: Disclosed herein is a non-aqueous electrolyte solution containing, in addition to an electrolyte and a non-aqueous solvent, (A) a compound having at least two isocyanate groups per molecule, and (B) LiN(FSO2)2.

Abstract: Disclosed herein is a non-aqueous electrolyte solution containing, in addition to an electrolyte and a non-aqueous solvent, (A) a compound having at least two isocyanate groups per molecule, and (B) LiN(FSO2)2.

Abstract: An object is to provide a non-aqueous electrolyte solution that can improve the capacity deterioration and gas generation associated with the high-temperature storage of non-aqueous electrolyte batteries. A further object is to provide a non-aqueous electrolyte battery that uses this non-aqueous electrolyte solution. These objects can be achieved by using a non-aqueous electrolyte solution that incorporates, in prescribed contents, (A) a compound having at least two isocyanate groups per molecule and a compound having at least two cyano groups per molecule.

Abstract: Provided is a nonaqueous electrolyte solution battery with dramatically improved battery characteristics. A nonaqueous electrolyte solution battery prepared by using a nonaqueous electrolyte solution comprising (I) an aromatic carboxylic acid ester compound represented by General Formula (1) below; and (II) specific compounds, is improved in charge-discharge characteristics at high current densities, durability performance during high-temperature storage and overcharge characteristics. (in General Formula (1), A1 is —R1 or —OR1, with R1 being an optionally substituted hydrocarbon group with 10 or fewer carbon atoms; A2 is an optionally substituted aryl group; each of j and k is independently 0 or an integer greater than 0, and at least one of j and k is an integer not less than 1; and when k?1, A1 is —OR1, while when k=0, A1 is —R1; and the case of j=1, k=0 is not allowed).

Abstract: A nonaqueous electrolyte solution includes a lithium salt and a nonaqueous solvent that dissolves the lithium salt. The nonaqueous electrolyte solution contains from at least 0.01 ppm to not more than 100 ppm of a compound represented by the following general formula (1): R1—CR2OR3—CR22OR3??(1) (in formula (1), R1 and R3 represent an organic group having 1 to 10 carbon atoms and optionally having a substituent; R2 represents hydrogen or an organic group having 1 to 10 carbon atoms and optionally having a substituent; and R1 to R3 may each represent the same group or may each represent different groups).

Abstract: An object is to provide a non-aqueous electrolyte solution that can improve the capacity deterioration and gas generation associated with the high-temperature storage of non-aqueous electrolyte batteries. A further object is to provide a non-aqueous electrolyte battery that uses this non-aqueous electrolyte solution. These objects can be achieved by using a non-aqueous electrolyte solution that incorporates, in prescribed contents, (A) a compound having at least two isocyanate groups per molecule and a compound having at least two cyano groups per molecule.

Abstract: The present invention is to provide: a nonaqueous-electrolyte battery excellent in terms of safety during overcharge and high-temperature storability; and a nonaqueous electrolytic solution which gives the battery. The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte and a nonaqueous solvent, wherein the nonaqueous electrolytic solution comprises at least one of specific compounds.

Abstract: An object is to provide a non-aqueous electrolyte solution that can improve the capacity deterioration and gas generation associated with the high-temperature storage of non-aqueous electrolyte batteries. A further object is to provide a non-aqueous electrolyte battery that uses this non-aqueous electrolyte solution. These objects can be achieved by using a non-aqueous electrolyte solution that incorporates, in prescribed contents, (A) a compound having at least two isocyanate groups per molecule and a compound having at least two cyano groups per molecule.

Abstract: Provided is a nonaqueous electrolyte solution battery with dramatically improved battery characteristics. A nonaqueous electrolyte solution battery prepared by using a nonaqueous electrolyte solution comprising (I) an aromatic carboxylic acid ester compound represented by General Formula (1) below; and (II) specific compounds, is improved in charge-discharge characteristics at high current densities, durability performance during high-temperature storage and overcharge characteristics. (in General Formula (1), A1 is —R1 or —OR1, with R1 being an optionally substituted hydrocarbon group with 10 or fewer carbon atoms; A2 is an optionally substituted aryl group; each of j and k is independently 0 or an integer greater than 0, and at least one of j and k is an integer not less than 1; and when k?1, A1 is —OR1, while when k=0, A1 is —R1; and the case of j=1, k=0 is not allowed).

Abstract: The present invention is to provide: a nonaqueous-electrolyte battery excellent in terms of safety during overcharge and high-temperature storability; and a nonaqueous electrolytic solution which gives the battery. The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte and a nonaqueous solvent, wherein the nonaqueous electrolytic solution comprises at least one of specific compounds.

Abstract: A nonaqueous electrolyte solution includes a lithium salt and a nonaqueous solvent that dissolves the lithium salt. The nonaqueous electrolyte solution contains from at least 0.01 ppm to not more than 100 ppm of a compound represented by the following general formula (1): R1—CR2OR3—CR22OR3??(1) (in formula (1), R1 and R3 represent an organic group having 1 to 10 carbon atoms and optionally having a substituent; R2 represents hydrogen or an organic group having 1 to 10 carbon atoms and optionally having a substituent; and R1 to R3 may each represent the same group or may each represent different groups).

Abstract: An object is to provide a non-aqueous electrolyte solution that can improve the capacity deterioration and gas generation associated with the high-temperature storage of non-aqueous electrolyte batteries. A further object is to provide a non-aqueous electrolyte battery that uses this non-aqueous electrolyte solution. These objects can be achieved by using a non-aqueous electrolyte solution that incorporates, in prescribed contents, (A) a compound having at least two isocyanate groups per molecule and a compound having at least two cyano groups per molecule.

Abstract: The invention relates to a separator for use in a nonaqueous-electrolyte secondary battery, and a nonaqueous-electrolyte secondary battery employing the separator, the separator comprising a positive electrode and a negative electrode which are capable of occluding and releasing lithium, a separator, and a nonaqueous electrolytic solution comprising a nonaqueous solvent and an electrolyte, the separator for use in the battery having an electroconductive layer, the electroconductive layer having (1) an apparent volume resistivity of 1×10?4 ?·cm to 1×106 ?·cm, or (2) a volume resistivity of 1×10?6 ?·cm to 1×106 ?·cm, or (3) a surface electrical resistance of 1×10?2? to 1×109?, and the electroconductive layer having a film thickness less than 5 ?m. The invention further relates to.