Daikin Industries, Ltd.

Mayuko Taeda

Meiten Koh

Shoji Fukuoka

Aoi Nakazono

Shinichi Kinoshita

Akiyoshi Yamauchi

Masanori Kitaichi

Daisuke Ota

Akinori Ueda

Kazuhiro Yamamura

Michiko Doi

Yuu Kadowaki

Shigeaki Yamazaki

Hiroyuki Arima

Michiru Kagawa

Tomo Shimada

Hideo Sakata

Yoshiko Kuwajima

Akinori Tani

Michiaki Okada

Toshirou Miura

Shigeru Morita

Yuuki Kuwajima

Junpei Terada

Takeshi Inaba

Tomihiko Yanagiguchi

Hitomi Nakazawa

Masahiro Tomita

Tomoyo Sanagi

Yuki Adachi

Kyouhei Sawaki

Toshiaki Masui

Kozue Komazawa

Tomoo Shimada

Tani Akinori

Provided is a fluororubber composition capable of providing a crosslinked fluororubber article that exhibits not only heat resistance, but also excellent mechanical properties at high temperatures. The fluororubber composition includes a fluororubber (A), a carbon black (B), and an aromatic petroleum resin (E), and the fluororubber composition has a difference δG′ (G′ (1%)−G′ (100%)) of not lower than 120 kPa and not higher than 3,000 kPa, where G′ (1%) denotes a shear modulus at a dynamic strain of 1%, G′ (100%) denotes a shear modulus at a dynamic strain of 100%, and G′ (1%) and G′ (100%) are determined by a dynamic viscoelasticity test carried out on an unvulcanised rubber with a rubber process analyzer (RPA) in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100° C.

Fluororubber composition

The present invention aims to provide a laminate in which a fluororesin layer and a fluororubber layer are firmly bonded even when the fluororesin layer contains a fluororesin having excellently low fuel permeability. The present invention relates to a laminate including a fluororubber layer (A) and a fluororesin layer (B) stacked on the fluororubber layer (A). The fluororubber layer (A) is a layer formed from a fluororubber composition. The fluororubber composition contains a fluororubber (a1) and a basic multifunctional compound having at least two nitrogen atoms in the molecule with a distance between the nitrogen atoms in the molecule of 5.70 &#x212b; or greater. The fluororubber (a1) has an absorption coefficient at 1720 cm, determined after being brought into contact with triethyl amine, of 0.35 or lower. The fluororesin layer (B) is formed from a fluororesin (b1) having a fuel permeability coefficient of 2.0 g&#xb7;mm/m/day or lower.

Laminate, method for manufacturing same, and fluororubber composition

Provided is an electrolyte solution for secondary batteries that are less likely to generate gas and excellent in high-temperature storage characteristics; an electrochemical device using the electrolyte solution; and a module using the electrochemical device. The electrolyte solution contains a solvent and an electrolyte salt, the solvent containing a fluorine-containing acyclic carbonate represented by the formula (1) and a fluorine-containing maleic anhydride represented by the formula (2). The electrolyte solution contains not less than 0.001 mass % but less than 90 vol % of the fluorine-containing acyclic carbonate, and the electrolyte solution contains 0.001 to 20 mass % of the fluorine-containing maleic anhydride.

Electrolyte, electrochemical device, secondary cell, and module

The present invention aims to provide an electrolyte solution that suppresses generation of gas. The electrolyte solution of the present invention includes a non-aqueous solvent (I) containing one or both of a fluorinated cyclic carbonate and a fluorinated acyclic carbonate; an electrolyte salt (II); and a compound (III) represented by the following formula (1): wherein Ris a C1-C20 linear or branched alkenyl or alkyl group or a C3-C20 alkyl group having a cyclic structure; m is 0 or 1; Ris a C1-C20 linear or branched alkylene group or a C3-C20 alkylene group having a cyclic structure, Rand Reach may have an oxygen atom between carbon atoms if Rand Reach have two or more carbon atoms, but the oxygen atom is not adjacent to another oxygen atom.

Electrolytic solution, electrochemical device, lithium-ion secondary cell, and module

A fluororubber composition including a fluororubber having an iodine content of 10 to 90 mol % for the total mole of the polymer end groups and a carbon black (B), wherein a difference (&#x3b4;G'), represented by G&#x2032;(1%)-G&#x2032;(100%), is not lower than 120 kPa and not higher than 3,000 kPa, where G&#x2032;(1%) denotes a shear modulus at a dynamic strain of 1% under an uncrosslinked state and G&#x2032;(100%) denotes a shear modulus at a dynamic strain of 100% under an uncrosslinked state, and G&#x2032;(1%) and G&#x2032;(100%) are determined by a dynamic viscoelasticity test with a rubber process analyzer (RPA) in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100&#xb0; C.

A laminate of a rubber layer (A) and a fluororesin layer (B) on the rubber layer (A), wherein the rubber layer (A) is a layer made of a rubber composition for vulcanization, the rubber composition for vulcanization contains an unvulcanized rubber (a1); at least one compound (a2) selected from the group consisting of a 1,8-diazabicyclo(5.4.0)undec-7-ene salt, a 1,5-diazabicyclo(4.3.0)-non-5-ene salt, 1,8-diazabicyclo(5.4.0)undec-7-ene, and 1,5-diazabicyclo(4.3.0)-non-5-ene; magnesium oxide (a3); and silica (a4), the amount of the compound (a2) is larger than 1.0 part by mass and not larger than 5.0 parts by mass, for each 100 parts by mass of the unvulcanized rubber (a1), the fluororesin layer (B) is a layer made of a fluoropolymer composition, and the fluoropolymer composition contains a fluoropolymer (b1) having a copolymer unit derived from chlorotrifluoroethylene.

Laminate

The present invention aims to provide an electrolyte solution for forming, for example, a secondary battery having excellent oxidation resistance and high voltage cycle characteristics; an electrochemical device such as a lithium-ion secondary battery that contains the electrolyte solution; and a module that contains the electrochemical device. The present invention provides an electrolyte solution containing a solvent and an electrolyte salt, wherein the solvent contains a fluorine-containing compound (A) represented by formula (1) shown below, and a fluorine-containing compound (B) represented by formula (2) shown below:RfOCOOR&#x2003;&#x2003;(1)wherein Rfis a C1-C4 fluorine-containing alkyl group, and R is a C1-C4 non-fluorinated alkyl group, andRfOCOORf&#x2003;&#x2003;(2)wherein Rfand Rfare the same or different, and each is a C1-C4 fluorine-containing alkyl group.

Electrolytic solution containing mixture of fluorinated chain carbonates, electrochemical device, lithium ion secondary battery and module

Provided is an electrolyte solution for secondary batteries that are less likely to generate gas and excellent in high-temperature storage characteristics; an electrochemical device using the electrolyte solution; and a module using the electrochemical device. The electrolyte solution contains a solvent and an electrolyte salt, the solvent containing a fluorine-containing acyclic carbonate represented by the formula (1) and a fluorine-containing succinic anhydride represented by the formula (2). The electrolyte solution contains not less than 0.001 mass % but less than 90 vol % of the fluorine-containing acyclic carbonate, and the electrolyte solution contains 0.001 to 20 mass % of the fluorine-containing succinic anhydride.

An electrolytic solution including a nonaqueous solvent (I), an electrolyte salt (II), and 0.001 to 20% by mass of a compound represented by the formula (1) or the formula (A) as defined herein.

Electrolytic solution, electrochemical device, lithium ion secondary battery, and module

A non-aqueous electrolyte including (i) a compound represented by the general formula (1):X&#x2014;R&#x2014;SOF&#x2003;&#x2003;(1)where R is a Clinear or branched alkylene group optionally containing an ether bond and optionally hydrogen atoms of the alkylene group are partly substituted by a fluorine atom(s); and X is a carboxylic acid derivative group), (ii) a non-aqueous solvent and (iii) an electrolyte salt.

Non-aqueous electrolyte and battery

The present invention aims to provide an electrolyte solution for forming, for example, a secondary battery having excellent oxidation resistance and high-temperature storage characteristics; an electrochemical device such as a lithium-ion secondary battery that contains the electrolyte solution; and a module that contains the electrochemical device. The present invention provides an electrolyte solution containing a solvent and an electrolyte salt, wherein the solvent contains a fluorine-containing compound (A) represented by formula (1) shown below in an amount of 0.01 to 20% by mass, and a fluorine-containing compound (B) represented by formula (2) shown below in an amount of 10 to 80% by mass:RfOCOOR&#x2003;&#x2003;(1)wherein Rfis a C1-C4 fluorine-containing alkyl group, and R is a C1-C4 non-fluorinated alkyl group, andRfOCOORf&#x2003;&#x2003;(2)wherein Rfand Rfare the same or different, and each is a C1-C4 fluorine-containing alkyl group.

A fluororubber composition which includes a fluororubber (A) and a carbon black (B). The fluororubber (A) is a vinylidene fluoride-based fluororubber including a structural unit (VdF unit) derived from vinylidene fluoride and a structural unit derived from at least one monomer selected from the group consisting of hexafluoropropylene (HFP), 2,3,3,3-tetrafluoro propylene, and perfluoro(alkyl vinyl ether) (PAVE). The molar ratio of the VdF unit to the structural unit derived from at least one monomer selected from the group consisting of HFP, 2,3,3,3-tetrafluoro propylene, and PAVE is 50/50 to 78/22. The fluororubber composition has a difference &#x3b4;G' (G&#x2032; (1%)-G&#x2032; (100%)) of not lower than 120 kPa and not higher than 3,000 kPa, where G&#x2032; (1%) denotes a modulus of shearing elasticity at a dynamic strain of 1%, G&#x2032; (100%) denotes a modulus of shearing elasticity at a dynamic strain of 100%, and G&#x2032; (1%) and G&#x2032; (100%) are determined by a dynamic viscoelasticity test.

The present invention aims to provide an electrochemical device excellent in high temperature storage characteristics and cycling characteristics at high voltages, and a nonaqueous electrolyte for the electrochemical device. The present invention relates to an electrochemical device including: a positive electrode; a negative electrode; and a nonaqueous electrolyte containing a nonaqueous solvent and an electrolyte salt, wherein the nonaqueous solvent contains a fluorinated linear carbonate represented by the formula (1):RfOCOOR&#x2003;&#x2003;(1)(wherein Rf represents a C1-4 fluorinated alkyl group and R represents a C1-4 alkyl group), and further contains following compounds of (I) to (III) in a total amount of not more than 5000 ppm relative to the fluorinated linear carbonate: (I) a compound represented by the formula (2)RfOH&#x2003;&#x2003;(2)(wherein Rf is defined as above); (II) a compound represented by the formula (3)ROH&#x2003;&#x2003;(3)(wherein R is defined as above); and (III) a compound represented by the formula (4)ROCOCl&#x2003;&#x2003;(4)(wherein R is defined as above).

Electrochemical device and nonaqueous electrolyte solution for electrochemical device

The invention provides a fluororubber composition able to produce a crosslinked fluororubber article that exhibits not only heat resistance, but also excellent mechanical properties at high temperatures, and a method for producing same. The fluororubber composition contains: a fluororubber (A); and carbon black (B), wherein when the aforementioned fluororubber composition is immersed for 160 hours in an extraction solvent of acetone and hexane at an acetone:hexane mass ratio of 42.29:57.71 at 40&#xb0; C. and an extraction residue that is not extracted and remains as a solid is separated from the aforementioned extraction solvent and dried and then the dry weight of the extraction residue is measured, the quantity of a solvent-insoluble polymer is not lower than 5%.

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Settsu, Japan

Mayuko Taeda