Abstract:
Gas generation in a battery is suppressed, and high safety is realized. The battery is composed of a positive electrode in which a positive electrode active material layer including a positive electrode active material is formed on a positive electrode collector, a negative electrode in which a negative electrode active material layer including a negative electrode active material is formed on a negative electrode collector, a separator provided between the positive electrode and the negative electrode, and an electrolyte impregnated in the separator; and includes a heteropoly acid and/or heteropoly acid compound as an additive at least in one of the positive electrode, the negative electrode, the separator, and the electrolyte.
Abstract:
PROBLEM TO BE SOLVED: To minimize degradation of battery characteristics when the battery is used for a long term, or under high-temperature environment or low-temperature environment.SOLUTION: An electrolyte interposed between a positive electrode and a negative electrode contains an electrolytic solution which contains a solvent and an electrolyte salt, and a portion of the electrolytic solution has an illiquid electrolyte held in a polymer material, and a liquid electrolyte where the electrolyte exists while maintaining fluidity. Preferably, the volume percentage of the illiquid electrolyte for the whole electrolyte is greater than 0 vol% and equal to or less than 6 vol%, and the weight-average molecular weight of a polymer material composing the illiquid electrolyte is 500,000 or more. Preferably, the electrolyte salt contains an imide salt compound represented by the following formula and, in particular, at least one of Z is a fluorine atom in the formula. M[(ZY)N](In the formula, Mis a monovalent cation, Y is SOor CO, Z is a fluorine atom or a polymerizable functional group, independently).
Abstract translation:要解决的问题:为了使电池长期使用或在高温环境或低温环境下使用时的电池特性降低最小化。解决方案:介于正极和负极之间的电解液含有电解液 其包含溶剂和电解质盐,并且一部分电解液具有保持在聚合物材料中的非液体电解质,以及在保持流动性的同时电解质存在的液体电解质。 优选地,用于整个电解液的液体电解质的体积百分比大于0体积%且等于或小于6体积%,构成非液体电解质的聚合物材料的重均分子量为500,000以上。 优选地,电解质盐含有下式表示的酰亚胺盐化合物,特别地,式中Z为氟原子中的至少一个。 M [(ZY)N](式中,Mis为单价阳离子,Y为SOOR,Z为氟原子或聚合性官能团)。
Abstract:
PROBLEM TO BE SOLVED: To suppress a reaction between an electrode and a nonaqueous electrolyte during charging and discharging so as to improve a cycle characteristic under a high-temperature environment and suppress generation of gas during continuous charging.SOLUTION: A nonaqueous electrolyte contains a solvent, an electrolyte salt, a hydrocarbon compound having a nitrile group, and at least one of a heteropoly acid and a heteropoly acid compound. At least a part of a surface of an anode is provided with a gelatinous coat containing an aggregate of an amorphous oxo acid and/or an oxo acid compound containing one or more types of addenda elements derived from at least the one of the heteropoly acid and the heteropoly acid compound. A component derived from the hydrocarbon compound having the nitrile group are absorbed into at least a part of the surface of the coat.
Abstract:
PROBLEM TO BE SOLVED: To provide electrolyte and a battery with improved high-temperature cycle characteristics and high-temperature preservation characteristics. SOLUTION: Electrolyte solution is impregnated in a separator 23 provided between a cathode 21 and an anode 22. The electrolyte solution contains a solvent, electrolyte salt, a cyclic sulfone compound, and cyclic carbonic ester such as 4-fluoro-1, 3-dioxolane-2-one, 4, 5-difluoro-1, 3-dioxolane-2-one, vinylene carbonate, vinyl ethylene carbonate, and methylene ethylene carbonate. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve battery characteristics when stored under high temperature, and to prevent the generation of gas inside a battery. SOLUTION: A nonaqueous electrolyte containing a chemical compound expressed by Formula (1) is used. In Formula (1), X represents aliphatic of a carbon number 4-18, either alicyclic or aromatic hydrocarbon group (which may contain halogen, phosphorus, silicon, oxygen, and sulfur), or alkoxyl group. R1-R6 are each independently hydrogen, halogen group, alkoxyl group, and aliphatic alkyl group (part or all of hydrogen may be substituted by halogen), and each of R1-R3 and R4-R6 contains two or more halogen atoms. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide portable terminal equipment, with which a large type display can be located, the display can be protected and operation is enabled even while a display operating part is closed with a cover. SOLUTION: A cover 15 to be freely opened/closed is provided for covering a display input part 12. Even when the display input part 12 is enlarged, the display input part 12 can be protected with the cover 15. The cover 15 is located with a keypad 16 and when respective keys 20, 20,... comprising the keypad 16 are pressed, the respective keys 20, 20,... are operated upon an object located inside the cover 15 by passing the pressure through the cover 15. Thus, when the display input part is covered with the cover 15 and the respective keys 20, 20,... comprising the keypad 16 are operated, the display input part 12 is pressed.
Abstract:
PROBLEM TO BE SOLVED: To provide a secondary battery offering excellent battery characteristics.SOLUTION: The secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution, and the electrolytic solution contains a benzylideneaniline compound.
Abstract:
PROBLEM TO BE SOLVED: To provide: a nonaqueous electrolyte secondary battery, in which gas generation caused when used in a high-temperature environment can be suppressed and cycle characteristics can be also improved, and a nonaqueous electrolyte; and a battery pack, an electronic apparatus, an electric vehicle, an electricity storage device and an electric power system which include the nonaqueous electrolyte secondary battery.SOLUTION: An electrolyte is a gelatinous electrolyte including an electrolytic solution and a polymer compound holding the electrolytic solution. The electrolytic solution includes a cyclic alkylene carbonate and a dinitrile compound represented by formula (1), and the content of the cyclic alkylene carbonate is 80 mass% or more relative to the total mass of the electrolytic solution. Formula (1) NC-(CH)-CN (In the formula, n represents an integer of 1 or more.)
Abstract:
PROBLEM TO BE SOLVED: To provide a battery in which a film having a stable and a low electric resistance on a surface of a negative electrode active material is formed, elevation of electric resistance is suppressed after a long period cycle and then battery characteristics are maintained. SOLUTION: The battery contains an electrolyte salt, a nonaqueous solvent, ortho-ester compound, and a cyclic carbonate ester compound expressed by a chemical formula (1). A non-flowable electrolyte wherein a volume density of negative electrode active material layer is 1.50 g/cc or more and 1.75 g/cc or less, a specific surface of a negative electrode active material is 0.8 m 2 /g or more and 4.0 m 2 /g or less is used. In the formula, R1 is hydrogen group, alkyl group, or aryl group. R1 is preferably hydrogen group or aryl group. R2-R4 are respectively and independently alkyl group, halogenated alkyl group, or aryl group. Alkyl group, or aryl group of which carbon number is 1-10 is preferable. Furthermore, methyl group, ethyl group, or propyl group is especially preferable. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery and a method of manufacturing the same which can sufficiently achieve swelling suppression effect when stored at high temperature.SOLUTION: The nonaqueous electrolyte secondary battery includes: an electrode body formed by winding or laminating a positive electrode and a negative electrode through a separator; an electrolyte; and an external package member for housing them. The positive electrode contains positive electrode active material coated with phosphate. The electrolyte includes an electrolyte containing: nonaqueous solvent; electrolyte salt; and an isocyanate compound represented by general formula (2). In the formula (2), N is nitride, C is carbon, and O is oxygen, Ris a 1-22C chain hydrocarbon group, or a 1-22C chain hydrocarbon group in which at least a part of carbon and/or hydrogen is substituted with at least one selected from a group of halogen, oxygen, sulfur, nitrogen and silicon.