Abstract: The present invention relates to: [1] a nonaqueous electrolytic solution containing a compound (A) represented by formula (I); and [2] a nonaqueous electrolytic solution battery including a positive electrode, a negative electrode, and the nonaqueous electrolytic solution.

Abstract: The present disclosure relates to: a nonaqueous electrolytic solution containing a compound (A) represented by general formula (1) and an anion (B) represented by general formula (2), and having amass ratio [(A)/(B)] of 0.01 or more and 1.2 or less; and a nonaqueous electrolytic solution battery including a positive electrode having a positive electrode active material capable of absorbing and releasing lithium ions, a negative electrode, and the nonaqueous electrolytic solution.

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: A nonaqueous electrolytic solution for a nonaqueous electrolytic solution battery including a positive electrode and a negative electrode which are capable of absorbing and releasing metal ions, the nonaqueous electrolytic solution comprising an alkali metal salt, a nonaqueous solvent, a compound represented by General Formula (A), and at least one of a specific compound represented by General Formula (?) and a specific compound represented by General Formula (?).

Abstract: A lithium secondary battery comprising: a positive electrode and a negative electrode which each has a specific composition and specific properties; and a nonaqueous electrolyte which contains a cyclic siloxane compound represented by general formula (1), fluorosilane compound represented by general formula (2), compound represented by general formula (3), compound having an S—F bond in the molecule, nitric acid salt, nitrous acid salt, monofluorophosphoric acid salt, difluorophosphoric acid salt, acetic acid salt, or propionic acid salt in an amount of 10 ppm or more of the whole nonaqueous electrolyte. This lithium secondary battery has a high capacity, long life, and high output. [In general formula (1), R1 and R2 are an organic group having 1-12 carbon atoms and n is an integer of 3-10. In general formula (2), R3 to R5 are an organic group having 1-12 carbon atoms; x is an integer of 1-3; and p, q, and r each are an integer of 0-3, provided that 1?p+q+r?3.

Abstract: Provided is a nonaqueous electrolyte secondary battery, including a positive electrode with a positive electrode active material capable of absorbing and releasing a metal ion; a negative electrode with a negative electrode active material capable of absorbing and releasing a metal ion; and a nonaqueous electrolyte solution; wherein the positive electrode active material includes a lithium transition metal compound, and the positive electrode active material includes at least Ni, Mn and Co, wherein the molar ratio of Mn/(Ni+Mn+Co) is larger than 0 and not larger than 0.28, the molar ratio of Ni/(Ni+Mn+Co) is 0.45 or more, the plate density of the positive electrode is 3.3 g/cm3 or more; and the nonaqueous electrolyte solution includes a monofluorophosphate and/or a difluorophosphate. A total content of the monofluorophosphate and/or difluorophosphate is 0.01% by mass or more in terms of the concentration in the nonaqueous 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: Provided is a nonaqueous electrolyte secondary battery, including a positive electrode with a positive electrode active material capable of absorbing and releasing a metal ion; a negative electrode with a negative electrode active material capable of absorbing and releasing a metal ion; and a nonaqueous electrolyte solution; wherein the positive electrode active material includes a lithium transition metal compound, and the positive electrode active material includes at least Ni, Mn and Co, wherein the molar ratio of Mn/(Ni+Mn+Co) is larger than 0 and not larger than 0.32, the molar ratio of Ni/(Ni+Mn+Co) is 0.55 or more, the plate density of the positive electrode is 3.0 g/cm3 or more; and the nonaqueous electrolyte solution includes a monofluorophosphate and/or a difluorophosphate. A total content of the monofluorophosphate and/or difluorophosphate is 0.01% by mass or more in terms of the concentration in the nonaqueous electrolyte solution.

Abstract: A lithium secondary battery comprising: a positive electrode and a negative electrode which each has a specific composition and specific properties; and a nonaqueous electrolyte which contains a cyclic siloxane compound represented by general formula (1), fluorosilane compound represented by general formula (2), compound represented by general formula (3), compound having an S—F bond in the molecule, nitric acid salt, nitrous acid salt, monofluorophosphoric acid salt, difluorophosphoric acid salt, acetic acid salt, or propionic acid salt in an amount of 10 ppm or more of the whole nonaqueous electrolyte. This lithium secondary battery has a high capacity, long life, and high output. [In general formula (1), R1 and R2 are an organic group having 1-12 carbon atoms and n is an integer of 3-10. In general formula (2), R3 to R5 are an organic group having 1-12 carbon atoms; x is an integer of 1-3; and p, q, and r each are an integer of 0-3, provided that 1?p+q+r?3.

Abstract: A nonaqueous electrolytic solution for use in a nonaqueous electrolytic solution secondary battery that includes a negative electrode and a positive electrode capable of storing and releasing metal ions, and a nonaqueous electrolytic solution, wherein the nonaqueous electrolytic solution includes (A) a first compound that does not have an aliphatic substituent having an unsaturated bond but has a Si—Si bond; and (B) a second compound having a S?O group and/or a third compound of formula (1)

Abstract: The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics in the case of using an energy storage device at a high temperature and at a high voltage and further capable of inhibiting the gas generation while maintaining a capacity retention rate after storage at a high temperature and at a high voltage and also provides an energy storage device using the same. Disclosed is a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing a carboxylic acid ester compound represented by the following general formula (I). In the formula, each of R1 and R2 independently represents a hydrogen atom, a —C(?O)—OR4 group, or the like, and R1 and R2 may be bonded to each other to form a ring structure. R3 represents a hydrogen atom or the like, and n represents an integer of 1 to 3.

Abstract: A task is to provide a non-aqueous electrolytic solution exhibiting excellent cycle capacity maintaining ratio and excellent low-temperature resistance characteristics and a non-aqueous electrolyte secondary battery using the same. An object of the present invention is to provide a non-aqueous electrolytic solution which improves the cycle capacity maintaining ratio and low-temperature resistance characteristics, and a non-aqueous electrolyte secondary battery using the non-aqueous electrolytic solution.

Abstract: The present invention provides a non-aqueous liquid electrolyte that can inhibit a capacity loss during continuous charging of a cell. A non-aqueous liquid electrolyte containing oxalato-complex anions (A), LiPF6, a symmetrical chain-form carbonate, and a chain-form carboxylic acid ester (C) in which the viscosity at 25° C. is 0.01-0.47 cP, wherein the non-aqueous liquid electrolyte is characterized in that: the ratio (A/B) of the amount (mass) of oxalato-complex anions (A) to the amount (mass) of PF6? anions (B) is 0.0001-0.30; and the total amount of the symmetrical chain-form carbonate and the chain-form carboxylic acid ester (C) in which the viscosity at 25° C. is 0.01-0.47 cP, relative to the total amount of the non-aqueous liquid electrolyte, is 1-45 mass %.

Abstract: The present invention relates to a nonaqueous electrolytic solution for use in a nonaqueous electrolytic solution secondary battery that comprises a negative electrode and a positive electrode capable of storing and releasing metal ions, and a nonaqueous electrolytic solution, wherein the nonaqueous electrolytic solution contains the specific compounds (A) and (B).

Abstract: There is provided a nonaqueous electrolytic solution for an energy storage device which is a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent and contains a phosphonate represented by the following general formula (I), and an energy storage device using the same: wherein, R1 represents an alkenyl group having 2 to 6 carbon atoms or an alkynyl group having 3 to 6 carbon atoms, and R2 and R3 each independently represent an alkynyl group having 3 to 6 carbon atoms.

Abstract: A task is to provide a non-aqueous electrolytic solution exhibiting excellent cycle capacity maintaining ratio and excellent low-temperature resistance characteristics and a non-aqueous electrolyte secondary battery using the same. An object of the present invention is to provide a non-aqueous electrolytic solution which improves the cycle capacity maintaining ratio and low-temperature resistance characteristics, and a non-aqueous electrolyte secondary battery using the non-aqueous electrolytic solution.

Abstract: Provided is a nonaqueous electrolytic solution for a nonaqueous electrolytic solution battery including a positive electrode and a negative electrode that are capable of occluding and releasing metal ions. The nonaqueous electrolytic solution is characterized by containing a compound represented by Formula (A) and a compound represented by Formula (?) along with an alkali metal salt and a nonaqueous solvent.

Abstract: Provided are: a nonaqueous electrolytic solution for a nonaqueous electrolytic solution battery including a positive electrode and a negative electrode that are capable of occluding and releasing metal ions, which nonaqueous electrolytic solution is characterized by containing a compound represented by Formula (1) along with an alkali metal salt and a nonaqueous solvent.

Abstract: The present invention provides an energy device having excellent properties. Also provided is a nonaqueous electrolyte solution containing a compound represented by the following Formula (1), wherein R11, R12 and R13 each independently represent an organic group having 1 to 3 carbon atoms; and R11 and R12, R11 and R13, or R12 and R13 are optionally bound with each other to form a 5-membered ring or a 6-membered ring, with a proviso that a total number of carbon atoms of R11, R12 and R13 is 7 or less.

Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.