Ube Industries, Inc.

Masahide Kondo

Koji Abe

Kazuhiro Miyoshi

Shoji Shikita

Masataka Fujinaga

Kei Shimamoto

Kosuke Nishimura

Yuichi Kotou

Chisen Hashimoto

Kazuyuki Kawabe

Makoto Babazono

Manabu Takase

Tatsuo Fujino

Hiroshi Yanagi

The present invention provides a non-aqueous electrolytic solution for a lithium secondary battery or a lithium ion capacitor, wherein the non-aqueous electrolytic solution includes a lithium salt as dissolved in a non-aqueous solvent in a concentration of 0.8 to 1.5 M (mol/L), the non-aqueous solvent includes, in relation to the whole of the non-aqueous solvent, 5 to 25% by volume of ethylene carbonate, 5 to 25% by volume of propylene carbonate, 20 to 30% by volume of dimethyl carbonate, 20 to 40% by volume of methyl ethyl carbonate, and 10 to 20% by volume of a fluorinated chain ester; the total content of ethylene carbonate and propylene carbonate in the non-aqueous solvent is 20 to 30% by volume, the total content of dimethyl carbonate and the fluorinated chain ester in the non-aqueous solvent is 30 to 40% by volume; and the flash point of the non-aqueous electrolytic solution is 20&#xb0; C. or higher, and the present invention also provides an energy storage device.

Non-aqueous electrolytic solution for lithium secondary battery or lithium ion capacitor, and lithium secondary battery or lithium ion capacitor using the same

The present invention provides a nonaqueous electrolytic solution capable of suppressing worsening of heat stability of a negative electrode and improving safety of an energy storage device while maintaining high-load charging and discharging cycle properties at a high temperature, an energy storage device using the same, and a phosphonoformic acid compound to be used for the same. The nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent contains 0.001 to 5% by mass of at least one selected from a phosphonoformic acid compound having at least one carbon-carbon unsaturated bond, which is represented by the following general formula (I), and a phosphonoformic acid compound having a carbon-carbon unsaturated bond or two phosphonocarbonyl groups, which is represented by the following general formula (II).  In the formula (I), each of Rto Ris an aliphatic organic group, provided that at least one of Rto Rrepresents a carbon-carbon unsaturated bond-containing aliphatic organic group.  In the formula (II), each of Rand Rrepresents an alkyl group, a cycloalkyl group, or an aryl group, and Rand Rmay be bonded to each other to form a ring structure. m represents 1 or 2; when m is 1, then Rrepresents an aryl group; when m is 2, then Rrepresents an alkylene group, an alkenylene group, or an alkynylene group; and a part of hydrogen atoms of Rto Rmay be substituted with a halogen atom.

Nonaqueous electrolyte solution, electricity storage device using same, and phosphonoformic acid compound used in same

The present invention is to provide a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent and an energy storage device, wherein the nonaqueous electrolytic solution includes LiPF(&#x2014;OC(&#x2550;O)&#x2014;C(&#x2550;O)O&#x2014;)and at least one kind of a compound having a carbon-carbon triple bond represented by the following general formula (I): 

Nonaqueous electrolytic solution and energy storage device using same

The present invention provides an excellent nonaqueous electrolytic solution capable of improving low-temperature and high-temperature cycle properties and load characteristics after high-temperature charging storage, an electrochemical element using it, and an alkynyl compound used for it. The nonaqueous electrolytic solution of the present invention comprises containing at least one alkynyl compound represented by the following general formula (I) in an amount of from 0.01 to 10% by mass in the nonaqueous electrolytic solution.R(O)&#x2014;X&#x2014;R&#x2003;&#x2003;(I)(In the formula, Xrepresents a group &#x2014;C(&#x2550;O)&#x2014;, a group &#x2014;C(&#x2550;O)&#x2014;C(&#x2550;O)&#x2014;, a group &#x2014;S(&#x2550;O)&#x2014;, a group &#x2014;P(&#x2550;O) (&#x2014;R)&#x2014;, or a group &#x2014;X&#x2014;S(&#x2550;O)O&#x2014;. Rrepresents an alkenyl group, a formyl group, an alkyl group, an acyl group, an arylcarbonyl, an alkanesulfonyl group, an alkynyloxysulfonyl group, an arylsulfonyl group, a dialkylphosphoryl group, an alkyl(alkoxy)phosphoryl group, or a dialkoxyphosphoryl group; Rrepresents an alkynyl group or an alkynyloxy group; Rrepresents an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an alkoxy group, an alkenyloxy group, an alkynyloxy group, or an aryloxy group; n indicates 0 or 1.

Non-aqueous electrolytic solution, electrochemical element using same, and alkynyl compound used therefor

A nonaqueous electrolytic solution that is capable of improving the electrochemical characteristics in a broad temperature range, and an energy storage device using the same are provided, and the nonaqueous electrolytic solution contains a nonaqueous solvent having dissolved therein an electrolyte salt, in which the nonaqueous solvent contains two or more kinds of cyclic carbonates selected from ethylene carbonate, propylene carbonate, 1,2-butylene carbonate, 2,3-butylene carbonate, 4-fluoro-1,3-dioxolan-2-one, trans- or cis-4,5-difluoro-1,3-dioxolan-2-one, vinylene carbonate, vinyl ethylene carbonate and 4-ethynyl-1,3-dioxolan-2-one, and the nonaqueous electrolytic solution further contains a cyclic acid anhydride represented by the following general formula (I) having bonded thereto a side chain that has 3 or more carbon atoms and has a double bond or a triple bond at an end thereof in an amount of from 0.01 to 10% by mass: wherein Rand Reach independently represent a hydrogen atom, a halogen atom or an alkyl group having from 1 to 6 carbon atoms, at least one hydrogen atom of which may be substituted by a halogen atom; and Rrepresents a linear or branched alkenyl group having from 2 to 4 carbon atoms and having a double bond at an end thereof or a linear or branched alkynyl group having from 2 to 4 carbon atoms and having a triple bond at an end thereof.

Non-aqueous electrolyte solution and electricity-storage device using same

A nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains at least one kind of an isocyanate compound having an ester structure represented by the following general formula (I):  (wherein R represents an alkyl group, an alkenyl group, a Cto Caryl group, an alkyloxy group, an alkenyloxy group, an isocyanatoalkyloxy group, or an aryloxy group in which at least one of the hydrogen atom may be substituted with a halogen atom. X represents a linear or branched alkylene group in which at least one of the hydrogen atom may be substituted with a halogen atom, or a bivalent linking group comprising at least one ether bond).

The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics at high temperatures and further capable of not only improving a capacity retention rate after a high-temperature cycle test but also decreasing a rate of increase of an electrode thickness, and also to provide an energy storage device using the same. A nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing from 0.001 to 5% by mass of a diisocyanate compound represented by OCN-L-NCO (in the formula, L represents an alkylene group having from 4 to 12 carbon atoms) and further containing from 0.001 to 5% by mass of at least one selected from a specified phosphoric acid ester compound, a specified cyclic sulfonic acid ester compound, a specified isocyanate compound having an ester structure, and a specified triple bond-containing compound, and an energy storage device using the same, are disclosed.

Nonaqueous electrolyte solution and electricity storage device using same

The object of the present invention is to provide a nonaqueous electrolytic solution that can improve the electrochemical properties in a broad temperature range and an electrochemical device using the same. A nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous solvent includes 0.1 to 30% by volume of a fluorine atom-containing cyclic carbonate, and further the nonaqueous electrolytic solution includes 0.001 to 5% by mass of a branched dinitrile compound in which the main chain of an alkylene chain linking the two nitrile groups has 2 or more and 4 or less of the carbon number.

Nonaqueous electrolytic solution and electrochemical device using the same

A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which contains a carboxylate represented by the following general formula (8) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution: 

Nonaqueous electrolyte solution and electrochemical element using same

A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, containing a hydantoin compound represented by the following general formula (I) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution, and excellent in battery characteristics such as high-temperature storage property and cycle property. (In the formula, Rand Reach represent a methyl group or an ethyl group; Rand Reach represent a hydrogen atom, a methyl group or an ethyl group.)

Nonaqueous electrolyte and lithium cell using the same

The present invention provides a nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, containing 0.01% to 30% by weight of a 1,2-cyclohexanediol derivative having a specific structure; and a lithium secondary battery using the nonaqueous electrolytic solution. The lithium secondary battery exhibits excellent battery characteristics such as electrical capacity, cycle property, and storage property and can maintain excellent long-term battery performance.

Nonaqueous electrolyte solution and lithium secondary battery using same

The present invention provides a nonaqueous electrolytic solution exhibiting excellent electrical capacity, long-term cycle property, and storage property in a charged state; and a lithium secondary battery using the nonaqueous electrolytic solution. The nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, comprises 0.001% to 5% by weight of a tin compound represented by the following general formula (I) and/or (II), on the basis of the weight of the nonaqueous electrolytic solution:RRRSn-MRRR&#x2003;&#x2003;(I)where Rto Reach represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or an aryloxy group; Rto Reach represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, or an aryl group; M represents Si or Ge; andSnX&#x2003;&#x2003;(II)where X represents &#x3b2;-diketonate.

A band-pass filter has a ladder-type circuit including first and second terminals whose characteristic impedances are Z, and series elements and shunt elements disposed between a first terminal and a second terminal, each of the series elements and shunt elements containing a film bulk acoustic resonator. Assuming that characteristic impedance of any one of the series elements is Zand that characteristic impedance of any one of the shunt elements is Z, the characteristic impedances Z, Z, and Zhave a relation of 1&#x3c;(Z/Z)&#x3c;2, preferably 1.3&#x3c;(Z/Z)&#x3c;1.7, and 0.5&#x3c;(Z/Z)&#x3c;1, preferably 0.6&#x3c;(Z/Z)&#x3c;0.8.

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Ube, Japan

Masahide Kondo