Abstract: A lithium primary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode mixture including manganese dioxide, the negative electrode includes at least one of a metal lithium and a lithium alloy, the non-aqueous electrolyte includes an isocyanate compound as a first component, and at least one of a cyclic imide compound and a phthalic acid ester compound as a second component, the non-aqueous electrolyte has an isocyanate compound concentration of 5 mass % or less.

Abstract: A positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode material, a binder, and a thickener, and the negative electrode material includes a lithium silicate phase, and Si particles dispersed in the lithium silicate phase. The ratio of the Si particles in the negative electrode material is 30 mass % or more. The binder includes a poly(meth)acrylic acid, the thickener includes a carboxyalkyl cellulose, and the amount of the poly(meth)acrylic acid relative to 100 parts by mass of the negative electrode material is 0.1 parts by mass or more and 5 parts by mass or less. The non-aqueous electrolyte includes a lithium salt, a non-aqueous solvent, and an acid that exhibits a pKa of 1 to 30 in water at 25° C. The non-aqueous electrolyte secondary battery can suppress the generation of gas during high-temperature storage, and secure excellent cycle characteristics.

Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a negative electrode active material capable of electrochemically absorbing and releasing lithium, and a binder. The negative electrode active material includes a Si-containing material, and the binder includes at least one cellulose compound selected from the group consisting of a carboxyalkyl cellulose and a salt thereof. The electrolyte includes a non-aqueous solvent, and a lithium salt dissolved in the non-aqueous solvent. The lithium salt includes lithium bis(fluorosulfonyl)imide: LFSI.

Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode material mixture containing a negative electrode active material capable of electrochemically absorbing and releasing lithium ions, and carbon nanotubes. The negative electrode active material includes a silicon-containing material and a carbonaceous material. The non-aqueous electrolyte includes at least one cyclic ester selected from the group consisting of a cyclic sulfate ester, a cyclic sulfite ester, and a sultone. A content of the carbon nanotubes in the negative electrode material mixture is 0.005 mass% or more and 0.05 mass% or less.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode material including particles of a composite oxide containing lithium and a metal Me other than lithium, and a tungsten compound attached to a surface of the particles. The metal Me contains at least nickel. The nonaqueous electrolyte includes an unsaturated sultone compound.

Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode active material capable of electrochemically absorbing and releasing lithium, the negative electrode active material includes a composite material containing a silicate phase and silicon particles dispersed in the silicate phase, and the silicate phase includes at least one of an alkali metal and an alkaline earth metal. The content of the silicon particles in the composite material is above 40 mass % and 80 mass % or less. The non-aqueous electrolyte includes a sultone compound, and the content of the sultone compound in the non-aqueous electrolyte is 2 mass % or less.

Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a negative electrode active material capable of electrochemically absorbing and releasing lithium ions, and the negative electrode active material includes a first composite material containing a silicate phase and silicon particles dispersed in the silicate phase. The silicate phase includes at least one of an alkali metal and an alkaline earth metal. The content of the silicon particles in the first composite material is 30 mass % or more and 80 mass % or less. The electrolyte includes lithium fluorosulfonate.

Abstract: Disclosed is a non-aqueous electrolyte secondary battery including: a positive electrode; a negative electrode; and an electrolyte solution. The negative electrode contains a negative electrode active material that is capable of electrochemically absorbing and desorbing lithium. The negative electrode active material contains a lithium silicate phase and silicon particles that are dispersed in the lithium silicate phase. The lithium silicate phase is an oxide phase that contains lithium, silicon, and oxygen. The atomic ratio O/Si of oxygen relative to silicon in the lithium silicate phase is greater than 2 and less than 4. The electrolyte solution contains a halogenated benzene. The amount of halogenated benzene contained in the electrolyte solution is 1 ppm or more and 500 ppm or less.

Abstract: Disclosed is a non-aqueous electrolyte secondary battery including: a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein the electrolyte solution includes a lithium salt and carboxylic acid, and the lithium salt includes lithium bis(fluorosulfonyl)imide: LiN(SO2F)2.

Abstract: Disclosed is a non-aqueous electrolyte secondary battery including: a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein the electrolyte solution includes a solvent, a solute, and a carboxylic anhydride, the solvent includes a carboxylic acid ester compound, and the solute includes a sulfonyl imide compound.

Abstract: A non-aqueous electrolyte secondary including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a negative electrode active material capable of electrochemically absorbing and releasing lithium, and a binder. The negative electrode active material includes a Si-containing material, and the binder includes at least one cellulose compound selected from the group consisting of a carboxyalkyl cellulose and a salt thereof. The electrolyte includes a non-aqueous solvent, and a lithium salt dissolved in the non-aqueous solvent. The lithium salt includes lithium bis(fluorosulfonyl)imide: LFSI.

Abstract: Anon-aqueous electrolyte secondary including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a negative electrode active material capable of electrochemically absorbing and releasing lithium, and a binder. The negative electrode active material includes a Si-containing material, and the binder includes an acrylic resin. The electrolyte includes a non-aqueous solvent, and a lithium salt dissolved in the non-aqueous solvent. The lithium salt includes lithium bis(fluorosulfonyl)imide: LFSI.

Abstract: A non-aqueous electrolyte secondary battery including a positive electrode, a separator, a negative electrode facing the positive electrode with the separator interposed therebetween, and an electrolytic solution containing a solvent and an electrolyte. The positive electrode includes a positive electrode material containing a lithium-nickel composite oxide represented by LiaNibM1?bO2, where M represents at least one selected from the group consisting of Na, Mg, Sc, Y, Mn, Fe, Co, Ni, Cu, Zn, Al, Cr, Pb, Sb and B, 0.95?a?1.2, and 0.8?b?1. The electrolytic solution contains an ester compound C of an alcohol compound A and a carboxylic acid compound B, and contains at least one of the alcohol compound A and the carboxylic acid compound B in an amount of 15 ppm or more, relative to a mass of the electrolytic solution.

Abstract: A non-aqueous electrolyte secondary battery, including a positive electrode, a separator, a negative electrode facing the positive electrode with the separator interposed therebetween, and an electrolytic solution including a solvent and an electrolyte. The negative electrode includes a negative electrode material containing a lithium silicate phase and silicon particles dispersed in the lithium silicate phase. The silicon particles are contained in the negative electrode material in an amount of 30 mass % or more, relative to a total mass of the lithium silicate phase and the silicon particles. The electrolytic solution contains an ester compound C of an alcohol compound A and a carboxylic acid compound B, and contains at least one of the alcohol compound A and the carboxylic acid compound B in an amount of 15 ppm or more, relative to a mass of the electrolytic solution.

Abstract: A positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode material, a binder, and a thickener, and the negative electrode material includes a lithium silicate phase, and Si particles dispersed in the lithium silicate phase. The ratio of the Si particles in the negative electrode material is 30 mass % or more. The binder includes a poly(meth)acrylic acid, the thickener includes a carboxyalkyl cellulose, and the amount of the poly(meth)acrylic acid relative to 100 parts by mass of the negative electrode material is 0.1 parts by mass or more and 5 parts by mass or less. The non-aqueous electrolyte includes a lithium salt, a non-aqueous solvent, and an acid that exhibits a pKa of 1 to 30 in water at 25° C. The non-aqueous electrolyte secondary battery can suppress the generation of gas during high-temperature storage, and secure excellent cycle characteristics.

Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte having permeated the positive electrode, the negative electrode and the separator. The nonaqueous electrolyte includes a lithium salt and a nonaqueous solvent in which the lithium salt is dissolved. The lithium salt concentration in the nonaqueous electrolyte present within the positive electrode is higher than the lithium salt concentration in the nonaqueous electrolyte present within the negative electrode.

Abstract: Provided is an electrolytic solution for an aluminum electrolytic capacitor, which shows a specific conductivity, a high sparking voltage, and a characteristic of causing only a slight expansion of the capacitor in the reflow process, each being comparable with conventional alkyl phosphate anions, and which has high reliability without causing a short circuit. Also provided is an aluminum electrolytic capacitor. The present invention is directed to an electrolytic solution for an aluminum electrolytic capacitor, comprising an electrolyte (C) comprising an alkyl phosphate anion (a) represented by the general formula (1)/(2) and an amidinium cation (b); a borate ester (H) which is obtained by reacting boric acid (d) with diethylene glycol (e) and a polyalkylene glycol (f) having a molecular weight of 130-350 and/or a polyalkylene glycol monoalkyl ether (g) having a molecular weight of 130-350, and which has a boron content of 5-14 wt %; and an organic solvent (J).

Abstract: Provided is an electrolytic solution for an aluminum electrolytic capacitor, which shows a specific conductivity, a high sparking voltage, and a characteristic of causing only a slight expansion of the capacitor in the reflow process, each being comparable with conventional alkyl phosphate anions, and which has high reliability without causing a short circuit. Also provided is an aluminum electrolytic capacitor. The present invention is directed to an electrolytic solution for an aluminum electrolytic capacitor, comprising an electrolyte (C) comprising an alkyl phosphate anion (a) represented by the general formula (1)/(2) and an amidinium cation (b); a borate ester (H) which is obtained by reacting boric acid (d) with diethylne glycol (e) and a polyalkylene glycol (f) having a molecular weight of 130-350 and/or a polyalkylene glycol monoalkyl ether (g) having a molecular weight of 130-350, and which has a boron content of 5-14 wt %; and an organic solvent (J).

Abstract: Disclosed is a binder for electrode formation, which is obtained by dispersing a polyolefin resin containing 50 to 98% by mass of an unsaturated hydrocarbon having 3 to 6 carbon atoms and 0.5 to 20% by mass of an unsaturated carboxylic acid unit in an aqueous medium together with a basic compound. This binder for electrode formation is also characterized in that the content of a nonvolatile water-compatibilizing agent is 5 parts by mass or less per 100 parts by mass of the polyolefin resin.

Abstract: Disclosed is a binder for electrode formation, which is obtained by dispersing a polyolefin resin containing 50 to 98% by mass of an unsaturated hydrocarbon having 3 to 6 carbon atoms and 0.5 to 20% by mass of an unsaturated carboxylic acid unit in an aqueous medium together with a basic compound. This binder for electrode formation is also characterized in that the content of a nonvolatile water-compatibilizing agent is 5 parts by mass or less per 100 parts by mass of the polyolefin resin.