Zeon Corporation

L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Takuya Kaneda

Yujiro Toyoda

Kentaro Hayasaka

Yusaku Matsuo

Kenji Arai

Kenya Sonobe

Yasuhiro Wakizaka

Yusuke Adachi

Keiichiro Tanaka

Osamu Kobayashi

Taku Matsumura

Takumi Sugimoto

Tomoya Murase

Yasuhiro Isshiki

Takuya Ishii

Junnosuke Akiike

Shigenobu Kuwada

Tsuyoshi Sugitani

An air separation device can include: a first compressor and a second compressor for compressing feed air; a first refrigerator and a second refrigerator for cooling the feed air; a pre-purification unit for pre-purifying the feed air; a flow rate measuring unit for measuring the flow rate of the feed air; a main heat exchanger for subjecting the feed air to heat exchange; a purification portion into which the feed air led out from the main heat exchanger is fed, and which separates and purifies product nitrogen and/or product oxygen from the feed air; and a compressor control unit for controlling the feed quantity of the feed air in accordance with an increase or decrease in the production quantity of product nitrogen and/or product oxygen.

Air separation device

A liquefaction apparatus that automatically adjusts the load on the liquefaction apparatus correspondingly with an upper limit value of contracted power in different time slots, and which is capable of maximizing the amount of liquefied product produced and of achieving optimum operating efficiency is provided. In certain embodiments, the liquefaction apparatus can include: a production amount calculation unitfor obtaining an actual production amount of a liquefied product; a predicted power calculation unitfor obtaining a predicted power amount after a predetermined time has elapsed, on the basis of an integrated power value obtained by integrating a usage power; and a power demand control unitfor comparing the predicted power amount and a moving average of instantaneous power, and controlling a discharge flow rate of a compressorin such a way as to come infinitely close to a target value, without exceeding the target value, and while using the larger value of the predicted power amount and the moving average of instantaneous power as a value being controlled.

Liquefaction apparatus

A supply quantity adjustment devicecomprises: a total demand quantity calculation unitthat calculates a total demand quantity used at a supply destination, based on plant information; an excess/deficit information setting unitthat compares the total demand quantity and a flow rate set value and sets a first calculated pressure value; a backup coefficient setting unit that sets a backup coefficient set value based on a reference gasholder pressure, the first calculated pressure value, a reference backup pressure set value, and a measured gasholder pressure value; and a production coefficient setting unit that compares a production pressure set value obtained by adding the reference gasholder pressure and a first pressure output value with the measured gasholder pressure value, and sets a production coefficient so as to modify a variation in the quantity of product gas produced by the air separation apparatus.

Product gas supply quantity adjustment device and air separation apparatus comprising same

Provided is a binder composition for lithium ion secondary battery electrode-use that reduces internal resistance of a lithium ion secondary battery while also providing the lithium ion secondary battery with excellent life characteristics. The binder composition contains a copolymer X and a solvent. The copolymer X is obtained from a monomer composition X that contains at least 20.0 mass % and no greater than 75.0 mass % of an ethylenically unsaturated carboxylic acid compound (A) composed of either or both of an ethylenically unsaturated carboxylic acid and an ethylenically unsaturated carboxylic acid salt, and at least 20.0 mass % and no greater than 75.0 mass % of a copolymerizable compound (B) that has an ethylenically unsaturated bond and a solubility of at least 7 g in 100 g of water at 20&#xb0; C. The copolymer X has a degree of swelling in electrolysis solution of less than 120 mass %.

Binder composition for lithium ion secondary battery electrode-use, slurry composition for lithium ion secondary battery electrode-use, electrode for lithium ion secondary battery-use, and lithium ion secondary battery

Provided is a composition for a non-aqueous secondary battery functional layer that inhibits cissing in thin film application and enables formation of a functional layer that does not excessively increase the amount of metal deposited on an electrode during secondary battery charging. The composition for a functional layer contains organic particles, a binder, a wetting agent, and water. Content of the wetting agent is more than 1 part by mass and not more than 5 parts by mass per 100 parts by mass of the organic particles.

Composition for non-aqueous secondary battery functional layer, functional layer for non-aqueous secondary battery, and non-aqueous secondary battery

A cooling tower controlling system includes a plurality of cooling towers, a plurality of pumps, a circulation line through which circulating cooling water flows, a temperature measuring unit, a first load controlling unit, and a second load controlling unit. The temperature measuring unit measures a temperature TEof the circulating cooling water at a position upstream of a heat exchange unit and downstream of a storage unit. The first load controlling unit controls a rotational speed of the cooling fans so that an absolute value &#x394;TE of the difference between the temperature TEand an outside air wet-bulb temperature TEcomes within a first approach temperature APcorresponding to a first load in a first load period. The second load controlling unit controls a rotational speed of the cooling fans so that the absolute value &#x394;TE of the difference between the temperature TEand the outside air wet-bulb temperature TEcomes within a second approach temperature APcorresponding to a second load in a second load period.

Cooling tower controlling system and cooling tower controlling method

Provided is a binder composition for a secondary battery electrode that has excellent binding capacity and can cause a secondary battery to display excellent rate characteristics and cycle characteristics. The binder composition for a secondary battery electrode contains: a first particulate polymer having a degree of swelling in electrolysis solution of at least 400 mass % and no greater than 900 mass % and a glass transition temperature of at least &#x2212;60&#xb0; C. and no higher than &#x2212;15&#xb0; C.; a second particulate polymer having a degree of swelling in electrolysis solution of greater than 100 mass % and no greater than 200 mass % and a glass transition temperature of at least &#x2212;10&#xb0; C. and no higher than 30&#xb0; C.; and water.

Binder composition for secondary battery electrode, slurry composition for secondary battery electrode, electrode for secondary battery, and secondary battery

Provided is a binder for a non-aqueous secondary battery that has excellent preservation stability and binding capacity, and that can suppress viscosity elevation of a slurry composition. The binder for a non-aqueous secondary battery contains a particulate polymer and water. The particulate polymer has a degree of swelling in an aqueous medium at pH 5 of less than a factor of 2 and has a degree of swelling in an aqueous medium at pH 8 of at least a factor of 2 and no greater than a factor of 7.

Binder for non-aqueous secondary battery, composition for non-aqueous secondary battery functional layer, functional layer for non-aqueous secondary battery, and non-aqueous secondary battery

Provided is a binder composition for a secondary battery electrode that can cause a secondary battery to display excellent rate characteristics and cycle characteristics. The binder composition for a secondary battery electrode contains a first particulate polymer having a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion.

A porous membrane separator for a secondary battery, comprising a separator substrate, a porous membrane formed on at least one surface of the separator substrate, and an adhesive layer formed on the porous membrane, wherein: the porous membrane contains non-conductive particles and a water-soluble maleimide-maleic acid copolymer including a specific structural unit (a) a structural unit (b); and the adhesive layer contains a particulate polymer having a glass transition temperature of 10&#xb0; C. or higher and 110&#xb0; C. or lower.

Porous membrane separator for secondary battery, method for producing the same, and secondary battery

A secondary battery negative electrode including a current collector, a negative electrode active material layer, and a porous membrane, wherein the negative electrode active material layer contains a negative electrode active material and a particulate negative electrode polymer, the porous membrane contains non-conductive particles and a porous membrane polymer that is a non-particulate cross-linked polymer, and the non-conductive particles are particles of a polymer that contains 50% by weight or more of a structural unit formed by polymerization of a (meth)acrylate, the polymer having a softening starting point or decomposition point of 175&#xb0; C. or higher.

Negative electrode for secondary batteries and method for producing same

To provide a method for producing an electrode/separator laminate which, when producing the electrode/separator laminate by subjecting the electrode and separator with adhesive layer to thermocompression bonding, the separator and the electrode can be bonded with adequate adhesion, without detriment to ion conductivity. [Solution] This method for producing an electrode/separator laminate includes a step in which a separator with adhesive layer comprising a porous polyolefin film having an adhesive layer at least on one side, and an electrode which has an electrode active substance layer containing an electrode active substance and an electrode binder, are laminated in such a manner that the adhesive layer and the electrode active substance layer touch one another, and are subsequently subjected to thermocompression.

Method for producing electrode/separator laminate, and lithium-ion rechargeable battery

A secondary battery porous membrane, manufactured by a slurry for secondary battery porous membrane, which is superior in coating priority and dispersibility of non-conductive organic particles, which improves cycle characteristic of the obtained secondary battery, which has high flexibility and can prevent powder falls, and which has less content of moisture amount; and non-conductive organic particles, which can be suitably used as a secondary battery porous membrane and has less content of metallic foreign particles. The slurry for secondary battery porous membrane comprises; a binder including a polymerized unit of vinyl monomer having a hydrophilic acid group, a non-conductive organic particle having a functional group, cross-linkable with the hydrophilic acid group and a solvent.

Slurry for secondary battery porous membrane, a secondary battery porous membrane, an electrode for secondary battery, a separator for secondary battery and a secondary battery

A porous membrane for a secondary battery, including non-conductive particles and a binder for a porous membrane, wherein the non-conductive particle is a polymer particle having a core-shell structure, the non-conductive particle has a core portion having a glass transition point of 30&#xb0; C. to 90&#xb0; C., the non-conductive particle has a shell portion having a glass transition point higher than that of the core portion by 10&#xb0; C. or higher, a thickness of the shell portion is 0.01% to 3.0% of a number average particle diameter of the non-conductive particles, and a number average particle diameter (A) of the non-conductive particle and a number average particle diameter (B) of the binder for a porous membrane satisfy (A)&#x3e;(B).

Porous membrane for secondary batteries, method for producing same, electrode for secondary batteries, separator for secondary batteries, and secondary battery

A porous membrane for a secondary battery including non-electroconductive particles and a binder for a porous membrane, wherein the non-electroconductive particles are particles of a polymer, an arithmetic mean value of a shape factor of the non-electroconductive particles is 1.05 to 1.60, a variation coefficient of the shape factor is 16% or less, and a variation coefficient of a particle diameter of the non-electroconductive particles is 26% or less; manufacturing method thereof; and an electrode, a separator and a battery having the same.

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Tokyo, Japan

Takuya Kaneda