Nippon Shokubai Co., Ltd.

Morita Chemical Industries Co., Ltd.

Hiromoto Katsuyama

Yasunori Okumura

Takayuki Kobatake

Hiroyuki Mizuno

Masayuki Okajima

Takeo Kawase

Shimpei Sato

Naohiko Itayama

Kazuhisa Hirata

Yukihiro Fukata

Yuichi Sato

Keiichiro Mizuta

Taketo Toba

Izuho Okada

Taisuke Kasahara

Toshifumi Nishida

Satoshi Ishida

Yuji Hagiwara

Shin-ya Shibata

Chie Onoda

Kazunobu Ohata

Takanori Ochi

Miwako Tominaga

Takahiro Yamauchi

Yasuhiro Higuchi

Hirotsugu Shimizu

Kenji Yamada

Provided is a compound represented by Formula (1) below.MXY  (1) (In Formula (1), M represents metal other than alkali metal, X represents —N(SOF), Y represents a coordinating solvent, and a, b, and c are positive numbers.)

Bis(fluorosulfonyl)imide compound and method for producing same

An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), Rrepresents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, Rrepresents an alkali metal ion.

Method for manufacturing electrolyte solution material

An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt.  In general formula (1), Rrepresents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, Rrepresents an alkali metal ion.

In the present invention, a bis (fluorosulfonyl) imide metal salt is an alkali metal salt of bis (fluorosulfonyl) imide or an alkaline earth metal salt of bis (fluorosulfonyl) imide. The bis (fluorosulfonyl) imide metal salt has an average particle diameter of not less than 0.1 mm, or has an average moisture absorption rate of not more than 2.5 mass ppm/cm&#xb7;min when sealed in a PE bag having a thickness of 80 &#x3bc;m and left for 30 minutes at 23&#xb0; C. and 65% humidity.

Bis(fluorosulfonyl) imide metal salt and method for preparing same

The objective of the present invention is to provide an electrolyte solution of which electrolyte salt concentration is high and by which cycle characteristics hardly deteriorate and battery lifetime can be extended, and a lithium ion secondary battery which contains the above electrolyte solution. The electrolyte solution of the present invention comprises an electrolyte salt and a solvent, wherein a concentration of the electrolyte salt is more than 1.1 mol/L, the electrolyte salt contains a compound represented by the following formula (1): (XSO) (FSO)NLi (1) (wherein X is a fluorine atom, a Calkyl group or a Cfluoroalkyl group), and the solvent contains a cyclic carbonate.

Electrolyte solution and lithium ion secondary battery provided with same

Provided is a method the enables easy production of bis(fluorosulfonyl)imide suitable for a non-aqueous electrolytic solution for a lithium ion secondary battery, etc. The method for producing a bis(fluorosulfonyl)imide alkali metal salt according to the present invention comprises reacting bis(fluorosulfonyl)imide with an alkali metal compound in a reaction solution containing an organic solvent, wherein the organic solvent includes at least one organic solvent (A) selected from the group consisting of carbonate solvents, cyclic ether solvents, linear ether solvents having two or more oxygen atoms in the molecule, cyclic ester solvents, sulfolane solvents, N,N-dimethyl formamide, dimethyl sulfoxide, and N-methyl oxazolidinone.

Method for producing bis(fluorosulfonyl)imide alkali metal salt and method for producing non aqueous electrolytic solution

The objective of the present invention is to provide a clear conductive material with less turbidity, methods for producing and purifying the conductive material, and a nonaqueous electrolyte solution and an antistatic agent which contain the conductive material. The conductive material of the present invention comprises a fluorosulfonylimide salt represented by the following formula (1): wherein X is F of a Cfluoroalkyl group,and at least one organic solvent selected from the group consisting of a carbonate solvent, an ester solvent, a ketone solvent and an alcohol solvent, wherein a concentration of the fluorosulfonylimide salt is 0.1 mol/L or more, and a turbidity is 50 NTU/mol-LiFSI or less; and the production method of the present invention comprises the step of filtering a solution comprising the fluorosulfonylimide salt and the organic solvent by using a filter medium comprising the specific material.

Conductive material and manufacturing method and purification method for same, and non aqueous electrolyte solution and antistatic agent using said conductive material

A non-aqueous electrolytic solution capable of suppressing reduction in capacity, cycle characteristics, and/or rate characteristics even when used under high voltage conditions after being stored under high temperature conditions (e.g., 60&#xb0; C. or higher); and a lithium ion secondary battery using these non-aqueous electrolytic solutions are provided. The non-aqueous electrolytic solution of the present invention comprise an anion represented by the following general formula (1), a lithium cation, and a compound represented by the following general formula (2A) and/or an acid anhydride having an aromatic ring and at least one structure represented by &#x2014;C(&#x2550;O)&#x2014;O&#x2014;C(&#x2550;O)&#x2014; in a molecule, wherein a concentration of the anion represented by the general formula (1) is 0.1 mol/L or more.

Non-aqueous electrolytic solution and lithium ion secondary battery comprising same

The present invention provides a method of producing a tetracyanoborate-containing ionic compound in a milder condition more efficiently and less expensively than conventional methods, and a tetracyanoborate-containing ionic compound having a reduced content of impure components. An ionic compound of the present invention is represented by the following general formula (I), has a content of fluorine atom-containing impurities of 3 mol % or less per 100 mol % of the ionic compound, and a method for producing an ionic compound represented by the general formula (I) of the present invention comprises a step of reacting starting materials containing a cyanide and a boron compound. (In the formula, Ktdenotes an organic cation [Kt]or an inorganic cation [Ke]; and m denotes an integer of 1 to 3.)

Ionic compound, method for producing the same, and ion-conductive material comprising the same

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Osaka, Japan

Hiromoto Katsuyama