Ube Industries, Inc.

Junichi Chika

Norimichi Saito

Teruo Umemoto

Shoji Shikita

Kei Shimamoto

Yuichi Kotou

Tatsuo Fujino

Shuichi Koso

Yosuke Sato

The present invention is concerned with (1) a lithium salt compound including a lithium cation including, as a ligand, at least one ether compound selected from 2,5,8,11-tetraoxadodecane and 2,5,8,11,14-pentaoxapentadecane and a difluorophosphate anion; (2) a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing the aforementioned lithium salt compound; (3) a lithium ion secondary battery including a positive electrode, a negative electrode, and the aforementioned nonaqueous electrolytic solution; (4) a lithium ion capacitor using the aforementioned nonaqueous electrolytic solution; and (5) a production method of the aforementioned lithium salt compound, including bringing the aforementioned ether compound and lithium difluorophosphate into contact with each other. The nonaqueous electrolytic solution of the present invention is excellent in high-temperature cyclic property and output characteristics after high-temperature cycles and is capable of suppressing metal elution from a positive electrode or the like.

Lithium salt compound, nonaqueous electrolyte solution using same, lithium ion secondary battery and lithium ion capacitor

A nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, containing a compound of formula (X): 

Non-aqueous liquid electrolyte, electricity storage device using same, and phosphorus compound used therein

Provided is a simple, safe, and industrially practical method for producing a pentafluorosulfanylbenzoic acid. This method includes (A) a providing step of providing a trihalomethyl(pentafluorosulfanylbenzene) represented by general formula (1): where X is a halogen atom, n is an integer of 1&#x2266;n&#x2266;3, and the hydrogen atoms on the benzene ring are optionally replaced with a group having an oxygen atom, a group having a nitrogen atom, or a halogen atom; where X and n are as defined above, and the hydrogen atoms on the benzene ring are optionally replaced with the group or atom defined above; and where n is as defined above, and the hydrogen atoms on the benzene ring are optionally replaced with the group or atom defined above.

Method for producing pentafluorosulfanyl benzoic acid

Useful processes for isolating the fluorinated products formed by reaction with 4-tert-butyl-2,6-dimethylphenylsulfur trifluoride (Fluolead) are disclosed. The processes comprise the conversion of the byproduct (formula I) to sulfinate ester (formula V), and to sulfonate eater (formula VI), and then to the water-soluble sulfonate salt (formula IV) in the presence of the fluorinated products.

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Ube, Japan

Junichi Chika