Mitsui Chemicals, Inc.

Kabushiki Kaisha Toshiba

Gs Yuasa International Ltd.

Takashi Hayashi

Kenichi Goto

Satoko Fujiyama

Akio Hiwara

Shigeru Mio

Takeshi Kobayashi

Hidenobu Nogi

Masataka Miyasato

Mitsuo Nakamura

Hiroe Nakagawa

Koichi Kawamura

Hidetoshi Tsunoda

Kaichiro Haruta

Takashi Shimoyamada

Akira Kishimoto

Kuniyuki Takamatsu

Toshihiro Tanaka

Fumihata Yamamoto

A non-aqueous electrolyte solution for a secondary battery, including a boron compound represented by Formula (1). In Formula (1), R represents an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or a group represented by Formula (2). In Formula (2), each of Rto Rindependently represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 12 carbon atoms, an alkenyl group having from 2 to 12 carbon atoms, or an aryl group having from 6 to 12 carbon atoms, and * represents a bonding site with an oxygen atom in Formula (1). 

Non-aqueous electrolyte solution for secondary battery, and secondary battery

A non-aqueous electrolyte solution for a battery, including a compound represented by formula (1), wherein each A represents P or P&#x2550;O; each R represents H, a halogen, an alkyl, an aryl, an alkoxy or an aryloxy; each X represents H, an alkyl, an aryl, an alkali metal or formula (2); each Y represents H, a halogen, an alkyl, an aryl, an alkoxy, an aryloxy or formula (3); each Z represents H, an alkyl, an aryl or OZ; Zrepresents H, an alkyl, an aryl, an alkali metal, formula (2), or formula (4); each M represents an alkali metal; n is 1 or more; m is 1 or more; l is 1 or more; a sum of n, m and l in one molecule is from 1 to 200; and each * represents a position of bonding: 

Non-aqueous electrolyte solution for battery, novel compound, polyelectrolyte, and lithium secondary battery

A non-aqueous electrolyte solution for a battery includes: an additive A which is a compound represented by formula (I); and an additive B which is at least one selected from the group consisting of an aromatic compound having at least one of a halogen atom or an alkyl group and a carbamate, and which is a compound other than carbonates or a cyclic sulfates. In formula (I), Rrepresents a group represented by formula (II) or a group represented by formula (III) and Rrepresents H, a C1-6 alkyl group, a group represented by formula (II), or a group represented by formula (III); or Rand Rrepresent groups which combine to form a benzene ring or cyclohexyl ring. In formula (II), Rrepresents a halogen atom, a C1-6 alkyl group, a C1-6 alkyl halide group, a C1-6 alkoxy group, or a group represented by formula (IV). 

Non-aqueous electrolyte solution for battery and lithium secondary battery

A non-aqueous electrolyte solution containing a cyclic sulfone compound having a 1,3-dithietane-1,1,3,3-tetraoxide structure is provided. The cyclic sultone compound is preferably a compound represented by formula (I) [wherein in formula (I), Rto Reach represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, or the like]. 

Nonaqueous electrolyte solution containing cyclic sulfone compound, and lithium secondary battery

A non-aqueous electrolyte solution containing a cyclic sulfate compound represented by formula (I) is provided, wherein in formula (I), Rrepresents a group represented by formula (II) or a group represented by formula (III); Rrepresents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a group represented by formula (II), or a group represented by formula (III); and in formula (II), Rrepresents a halogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogenated alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or a group represented by formula (IV). 

Cyclic sulfate compound, non-aqueous electrolyte solution containing same, and lithium secondary battery

Disclosed is a nonaqueous electrolyte solution containing a sultone compound represented by the Formula 1 below (wherein Rto Rrespectively represent a hydrogen, a fluorine, a hydrocarbon group with 1 to 12 carbon atoms that may contain fluorine atom(s), n represents an integer of 0 to 3, and when n is 2 or 3, the two or three Rgroups are independent from each other and the two or three Rgroups are independent from each other), and an ethylene carbonate having a hydrogen atom substituted by a fluorine atom. Also disclosed is a lithium secondary battery employing the nonaqueous electrolyte solution. This nonaqueous electrolyte solution does not cause an increase in the internal resistance of a nonaqueous electrochemical device and improves the lifespan characteristics of the device. The lithium secondary battery containing the nonaqueous electrolyte solution exhibits greatly improved cycle charge/discharge characteristics at high temperature, and has excellent charge/discharge load characteristics. 

Nonaqueous electrolyte solution and lithium secondary battery using same

The present invention provides a non-aqueous electrolyte solution which contains a silyl ester group-containing phosphonic acid derivative.

Nonaqueous electrolyte solution containing silyl ester group-containing phosphonic acid derivative, and lithium secondary battery

A polyvinyl acetal resin varnish which is so low in stimulus property, toxicity, environment-polluting property, offensive odor, and inflammability that no problem is caused in practical use, and which is high in safety, low in viscosity, and thus favorable in workability, and an application of the polyvinyl acetal resin varnish are provided. As an organic solvent for dissolving the polyvinyl acetal resin, there is used a nonaqueous solvent, preferably carbonate ester, and more preferably a mixed solvent composed of cyclic carbonate ester and chain carbonate ester, into which the polyvinyl acetal resin is evenly dissolved regardless of its type, resulting in varnish which is high in safety and low in viscosity. Since the varnish has an action of gelling the organic solvent, the varnish can be used as a gelling agent in various applications.

Polyvinyl acetal resin varnish gelling agent, nonaqueous electrolyte solution, and electrochemical device

A nonaqueous electrolyte secondary battery includes an electrode group prepared by winding spirally or in a flattened shape a laminate structure including a separator interposed between positive and negative electrodes, and a nonaqueous electrolyte held by the electrode group, wherein an edge portion of the separator in a direction perpendicular to a winding direction protrudes outward from edges of the positive and negative electrodes in the direction perpendicular to the winding direction, and the separator satisfies conditions given by formulas (1) to (3) given below:0&#x2266;&#x2266;(/1.5)&#x2266;10&#x2003;&#x2003;(1)X&#x2266;10&#x2003;&#x2003;(2)X&#x2266;Y&#x2266;20.&#x2003;&#x2003;(3)

Nonaqueous electrolyte secondary battery

A diagnostic X-ray system includes an imaging system that generates image data sets from shots by subjecting a patient to X-ray exposure, a supporting mechanism that supports the imaging system movably with respect to the patient, a system controller that controls the imaging system and the supporting mechanism in such a manner that shots are repeated at each of a plurality of shot positions set discretely along the body axis of the patient, and an image processing apparatus that generates another image data set covering a range wider than the field of view of the imaging system from the image data sets.

X-ray diagnostic apparatus

An angiography apparatus includes a bed having a top on which a patient to be examined lies down, a substantially C-shaped C-arm, and an X-ray generating means and X-ray detection means which are arranged to oppose one end and the other end of the C-arm. According to this angiography apparatus, in chasing and imaging the flow of a contrast medium injected into the patient, the C-arm can be arbitrarily moved in a direction. In addition, according to the angiography apparatus of this invention, by displaying a simulated image of the flow of the contrast medium, an operator can simulate contrast medium chase imaging before actual contrast medium chase imaging.

Growing community of inventors

Ichihara, Japan

Takashi Hayashi