Nippon Shokubai Co., Ltd.

Izuho Okada

Yoshinobu Asako

Satoru Ono

Ryuji Aizawa

Minoru Kobayashi

Naohiko Itayama

Masayuki Okajima

Kiyomi Arimatsu

Takeo Kawase

Hideaki Tsuneki

Toshimitsu Moriguchi

Hiromoto Katsuyama

Tomoharu Oku

Takayuki Kobatake

Taisuke Kasahara

Masanori Nonoguchi

Kazuo Takei

Minoru Aoki

Hiroyuki Mizuno

Takeo Akatsuka

Hiroko Izumi

Atsushi Tachibana

Kazuhisa Hirata

Yasuyuki Miyoshi

Masashi Hashimoto

Hironori Horie

Miwako Tominaga

Akane Oguro

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

The present invention provides an ionic compound containing a cyanoborate; a process for production thereof; and an electrolytic solution and a device. The electrolytic solution comprises an ionic compound represented by general formula (1) and a solvent,M([B(CN)Y])&#x2003;&#x2003;(1)

Ionic compound and process for production thereof, and electrolytic solution and electrical storage device each utilizing the ionic compound

The present invention provides a stable electrolyte material that provides high safety, exhibits favorable ionic conductivity not only at room temperature but also in the low temperature range at or below room temperature, has excellent reduction resistance, and can be suitably used as a material of a lithium ion cell. The electrolyte material includes, as essential components, a specific polymer having an ether bond in a side chain thereof, and a specific electrolyte salt.

Electrolyte material, and battery material and secondary battery using said electrolyte material

In the method of the present invention for producing fatty acid alkyl ester and/or glycerin, as a heat source for an alcohol refining step of refining alcohol from unreacted alcohol that remains without reacting in a first reaction step, at least a part of heat of the unreacted alcohol is used. This allows reducing costs in production of fatty acid alkyl ester and/or glycerin over a solid catalyst.

Method for producing fatty acid alkyl ester and/or glycerin

An electrorheological fluid comprising dielectric particles and an insulating liquid and characterized by exhibiting a viscosity of not more than 0.2 Pa.cndot.s at a shear rate of 33/s when measured at 25.degree. C. in the absence of supply of an electric field and a structural viscosity satisfying the condition of the formula (1):

Electrorheological fluid with improved properties comprising composite

An electrorheological fluid comprising a dielectric particle as the dispersed phase, an insulating oil as the dispersing medium, and an additive, the additive being substantially insoluble in the dispersing medium, and being a composite containing a polysiloxane-containing structural unit (A), and at least one dispersed phase absorbing chain-containing structural unit (B) selected from the group consisting of an alkylene oxide chain-containing structural unit (B-1), a nitrogen atom chain-containing structural unit (B-2), and a long hydrocarbon chain-containing structural unit (B-3).

Electrorhelogical fluid

An electrorheological fluid composition comprising a dispersion of disperse-phase particles formed of a sulfonated polymer possessing aromatic rings substituted with sulfonic acid groups in an electrically non-conducting oil which electrorheological fluid is characterized by the fact that the number of sulfonic acid groups in said sulfonated polymer forming said disperse-phase particles exceeds the number of aromatic rings present in said sulfonated polymer.

Electrorheological fluids

Growing community of inventors

Osaka, Japan

Izuho Okada