Mitsui Chemicals, Inc.

Gs Yuasa International Ltd.

Satoko Fujiyama

Takashi Hayashi

Shigeru Mio

Kei Sugawara

Masataka Miyasato

Shoji Tamai

Kenichi Goto

Mitsuo Nakamura

Hidenobu Nogi

Hidetoshi Tsunoda

Takehiko Omi

Junichi Ishikawa

Yuichi Okawa

Takashi Kuroki

Hiroe Nakagawa

Hitoshi Onishi

Takeshi Kobayashi

Masahiro Toriida

Tomoyuki Nakata

Kaichiro Haruta

Kuniyuki Takamatsu

Yusuke Shimizu

Shigeharu Fujii

Mitsuaki Chida

Akira Kishimoto

Kazuhisa Miyazaki

Han Zhang

A lithium borate compound represented by the following Formula (I). In Formula (I), each of R, R, and Rindependently represents a hydrocarbon group having from 1 to 20 carbon atoms, which may have a substituent. Rrepresents a fluorine atom, a hydrocarbon-oxy group having from 1 to 10 carbon atoms, a hydrocarbon group having from 1 to 10 carbon atoms, or a fluorinated hydrocarbon group having from 1 to 10 carbon atoms.

Lithium borate compound, additive for lithium secondary battery, nonaqueous electrolytic solution for lithium secondary battery, precursor for lithium secondary battery, and production method for lithium secondary battery

The present disclosure provides a lithium borate compound represented by the following Formula (I), an additive for a lithium secondary battery, which contains the lithium borate compound, a non-aqueous electrolyte solution for a lithium secondary battery, a lithium secondary battery precursor, and a lithium secondary battery and method of producing the same. In Formula (I), R represents a single bond or an alkylene group having from 1 to 4 carbon atoms.

Lithium borate compound, additive for lithium secondary battery, non-aqueous electrolyte solution for lithium secondary battery, lithium secondary battery precursor, and lithium secondary battery and method of producing the same

A nonaqueous electrolytic solution for a battery that includes a negative electrode active material containing graphite, the nonaqueous electrolytic solution for a battery containing a compound represented by the following Formula (1): in Formula (1), R represents a fluorine atom or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms.

Nonaqueous electrolytic solution for battery and lithium secondary battery

A non-aqueous electrolyte solution for a battery, includes: an additive A which is at least one selected from the group consisting of compounds represented by the following Formula (A); an additive B which is at least one selected from the group consisting of lithium monofluorophosphate and lithium difluorophosphate; and an additive C which is at least one selected from the group consisting of compounds containing a sulfur-oxygen bond. In Formula (A), Rrepresents a fluorine atom, or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms; and each of Rto Rindependently represents a hydrogen atom, a fluorine atom, a hydrocarbon group having from 1 to 6 carbon atoms, or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms.

Non-aqueous electrolyte solution for battery and lithium secondary battery

Provided is a nonaqueous electrolyte solution for batteries, which contains an additive A that is composed of a boron compound represented by formula (1), and an additive B that has a lower reductive decomposition potential than the Additive A, in which n represents an integer from 1 to 5, Mrepresents an Liion or an Hion, and when n is an integer from 2 to 5, more than one Mmay be the same as or different from each other. 

Nonaqueous electrolyte solution including boron compound additive having higher reductive decomposition potential than additional additive and lithium secondary battery including the same

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). 

The invention provides a non-aqueous electrolyte solution containing a phosphonosulfonic acid compound represented by formula (I): 

Non-aqueous electrolyte solution containing phosphonosulfonic acid 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

This invention provides a binder for a fuel cell which has high adhesion, low methanol solubility, high methanol permeability and high proton conductivity, a composition for electrode formation, an electrode for a fuel cell, and a fuel cell using them. The binder is particularly suitable for a binder for a direct methanol type fuel cell which requires high proton conductivity. The binder for a fuel cell comprises a block copolymer which comprises a block having a repeating structural unit of a divalent aromatic group that contains a protonic acid group and a block having a repeating structural unit of a divalent aromatic group that does not contain a protonic acid group, and which has a glass transition temperature (Tg) of 180&#xb0; C. or less. In particular, it is preferable that the block copolymer has an ion exchange group equivalent of from 200 to 1,000 g/mole and a weight retention ratio of 90% or more as measured by immersion in a 64 weight % aqueous methanol solution at 25&#xb0; C. for 24 hours.

Binder for fuel cell, composition for forming electrode, electrode, and fuel cell using the electrode

The invention provides a crosslinkable aromatic resin having a protonic acid group and a crosslinkable group, suitable for electrolytic membranes and binders used in fuel cells, etc., and electrolytic polymer membranes, binders and fuel cells using the resin. The crosslinkable aromatic resin has a crosslinkable group, which is not derived from the protonic acid group and can form a polymer network without any elimination component. This resin exhibits excellent ion conductivity, heat resistance, water resistance, adhesion property and low methanol permeability. Preferably, the crosslinkable group is composed of a Cto Calkyl group directly bonded to the aromatic ring and/or an alkylene group having 1 to 3 carbon atoms in the main chain in which at least one carbon atom directly bonded to the aromatic ring bonds to hydrogen, and a carbonyl group, or a carbon-carbon double bond or triple bond. The aromatic resins such as aromatic polyethers, aromatic polyamides, aromatic polyimides, aromatic polyamideimides, aromatic polyazoles, etc., which contain such a crosslinkable group, are preferred as the crosslinkable aromatic resins having a protonic acid group and a crosslinkable group.

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Kisarazu, Japan

Satoko Fujiyama