Nissan Chemical Industries Limited

Waseda University

Nissan Chemical Corporation

Takuji Yoshimoto

Go Ono

Yuki Shibano

Taku Kato

Tomohisa Yamada

Tatsuya Hatanaka

Juro Oshima

Hiroyuki Nishide

Kenichi Oyaizu

Naoki Nakaie

Shun Sugawara

Takuma Kawai

Hiroyoshi Fukuro

Hitoshi Furusho

Satoshi Nakao

Akira Yanagimoto

Shigeru Mitsui

Kayo Takeda

Yuya Kambe

This composition for a hole collecting layer of an organic photoelectric conversion element contains: a charge-transporting substance comprising a polyaniline derivative represented by formula (1); a fluorine-based surfactant; and a solvent. The composition provides a thin film suitable for a hole collecting layer of an organic photoelectric conversion element, and is particularly suited for producing an inverse lamination type organic photoelectric conversion element. (In the formula, Rto Reach independently represent a hydrogen atom, etc., but one of Rto Ris a sulfonic acid group, one or more of the remaining Rto Rare a C1-20 alkoxy group, a C1-20 thioalkoxy group, a C1-20 alkyl group, a C2-20 alkenyl group, a C2-20 alkynyl group, a C1-20 haloalkyl group, a C6-20 aryl group, or a C7-20 aralkyl group, and m and n are numbers which satisfy 0&#x2264;m&#x2264;1, 0&#x2264;n&#x2264;1 and m+n=1).

Composition for hole collecting layer of organic photoelectric conversion element

Provided is an agent for dispersing an electrically conductive carbon material, in which the agent consists of a polymer which has an oxazoline group in a side chain and which is obtained by using an oxazoline group-containing monomer such as that represented by formula (1) for example, and in which the agent exhibits excellent dispersion of an electrically conductive carbon material and produces a thin film that exhibits excellent adhesion to a current collection substrate when formed into a thin film together with the electrically conductive carbon material.  (In the formula, X denotes a polymerizable carbon-carbon double bond-containing group, and R-Reach independently denote a hydrogen atom, a halogen atom, an alkyl group optionally having a branched structure having 1-5 carbon atoms, an aryl group having 6-20 carbon atoms, or an aralkyl group having 7-20 carbon atoms.)

Agent for dispersing electrically conductive carbon material, and dispersion of electrically conductive carbon material

This undercoat foil for an energy storage device electrode comprises a collector base plate, and an undercoat layer formed on at least one surface of the collector base plate, the undercoat layer containing carbon nanotubes, and the coating amount per collector base plate surface being 0.1 g/mor less. Since this undercoat foil can be effectively welded by ultrasound, the use thereof allows a low-resistance energy storage device and a simple and effective production method therefor to be provided.

Undercoat foil for energy storage device electrode

A charge transport varnish containing a charge transport substance, an electron-accepting dopant substance, and an organic solvent, wherein the electron-accepting dopant substance contains one or more types selected from naphthalene disulfonic acid, naphthalene trisulfonic acid, and naphthalene tetrasulfonic acid. This charge transport varnish is suitable for forming a hole collection layer that can be used to produce an organic photoelectric conversion element which exhibits high photoelectric conversion efficiency.

Charge transport varnish

Provided is a composition for a hole trapping layer of an organic photoelectric conversion element, such composition: containing a solvent and a charge-transporting substance comprising a polyaniline derivative represented by formula (1); and providing a thin film that is suitable as a hole trapping layer of an organic photoelectric conversion element and can also be used to produce an inverse lamination type organic photoelectric conversion element. {R-Reach independently denote a hydrogen atom or the like, but one of the R-Rgroups is a sulfonic acid group, one or more of the other R-Rgroups is an alkoxy group having 1-20 carbon atoms, a thioalkoxy group having 1-20 carbon atoms, an alkyl group having 1-20 carbon atoms, an alkenyl group having 2-20 carbon atoms, an alkynyl group having 2-20 carbon atoms, a haloalkyl group having 1-20 carbon atoms, an aryl group having 6-20 carbon atoms or an aralkyl group having 7-20 carbon atoms, and m and n are numbers that satisfy the relationships 0&#x2264;m&#x2264;1, 0&#x2264;n&#x2264;1 and m+n=1.}

Composition for hole trapping layer of organic photoelectric conversion element

Provided is an electrode for energy storage devices, which is provided with a collector substrate, an undercoat layer that is formed on at least one surface of the collector substrate and contains carbon nanotubes, and an active material layer that is formed on the surface of the undercoat layer, and wherein the active material layer does not contain a conductive assistant.

Electrode for energy storage devices

Provided is an electrode for energy storage devices, which is provided with: a collector substrate; an undercoat layer that is formed on at least one surface of the collector substrate and contains carbon nanotubes; and an active material layer that is formed on the surface of the undercoat layer and contains an active material which contains a titanium-containing oxide.

A nonaqueous secondary cell provided with: a positive electrode provided with a positive-electrode current-collecting substrate and a positive-electrode active material layer formed thereon, the positive-electrode active material layer being able to absorb or discharge lithium; a negative electrode provided with a negative-electrode current-collecting substrate and a negative-electrode active material layer formed thereon, the negative-electrode active material layer being able to absorb or discharge lithium; a separator interposed between the positive and negative electrodes; and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution contains a sulfonyl imide electrolyte and a nonaqueous organic solvent. An electroconductive protective layer obtained by dispersing an electroconductive carbon material in a binder resin is formed on one or both surfaces of the positive-electrode current-collecting substrate and/or the negative-electrode current-collecting substrate. Regardless of whether the nonaqueous electrolyte solution including the sulfonyl imide electrolyte is used, the nonaqueous secondary cell has good cycle characteristics and high output characteristics.

Nonaqueous secondary battery

A photosensor element that is capable of achieving a good balance between high photoelectric conversion efficiency and low dark current is able to be obtained by using a composition for forming a hole collecting layer of a photosensor element, which contains an organic solvent and a charge-transporting material that is composed, for example, of an aniline derivative or thiophene derivative represented by one of formulae (AA)-(DD) and having a molecular weight of 200-2,000. 

Composition for forming hole collecting layer of photosensor element, and photosensor element

Materials having charge-storing properties and made variously of dipyridine-fused benzoquinones of formula (1) below or derivatives thereof, dipyridine-fused benzoquinones of formula (4) below or derivatives thereof, or dipyridine-fused benzoquinone skeleton-containing polymers are provided. In the formulas, Arand Arare each independently a pyridine ring that forms together with two carbon atoms on a benzoquinone skeleton, or a derivative thereof. When used as electrode active materials, these charge storage materials are capable of providing high-performance batteries possessing a high capacity, high rate characteristics and high cycle characteristics.

Charge storage material, electrode active material and secondary battery

A charge-transporting thin film having excellent flatness can be obtained with good repeatability using the charge-transporting varnish of the present invention, which contains: a charge transportation substance comprising a charge-transporting monomer or a charge-transporting oligomer or polymer having a number-average molecular weight of 200-50,000, or a charge transporting material comprising the charge transportation substance and a dopant substance; and a mixed solvent including at least one type of good solvent and at least one type of poor solvent; the absolute value of the boiling point difference &#x394;T&#xb0; C. of the good solvent and the poor solvent satisfying the relation |&#x394;T|&#x3c;20&#xb0; C.; the viscosity at 25&#xb0; C. being 7.5 mPa&#xb7;s or less; the surface tension at 23&#xb0; C. being 30.0-40.0 mN/m; and the charge-transporting material being dissolved or uniformly dispersed in the mixed solvent.

Charge-transporting varnish

A hyper-branched polymer dispersant represented by, for example, formula (I) has high adhesion properties to a current collector substrate and therefore enables the formation of an electrically conductive bonding layer having high carbon nanotube concentration. When a composite current collector for an energy storage device electrode which is equipped with the electrically conductive bonding layer is used, it becomes possible to produce an energy storage device from which an electrical current can be extracted without causing the decrease in a voltage particularly in use applications that require a large electrical current instantaneously, such as electrical automotive applications, and which has a long cycle life. 

Composite current collector for energy storage device electrode, and electrode

A fused-ring quinone-substituted polynorbornene has recurring units of formula (1) and/or (2) below.  In formulas (1) and (2), Ais independently a substituent of formula (3) or (4) below, n is an integer from 1 to 6, and Ais a substituent of formula (5) or (6) below.  In formulas (3) to (6), each X is independently a single bond or a divalent group, and Arand Arare each independently an aromatic hydrocarbon ring or an oxygen atom or sulfur atom-containing aromatic heterocycle that forms together with two carbon atoms on a benzoquinone skeleton. This polymer has charge-storing properties and, when used as an electrode active material, is capable of providing a high-performance battery possessing high capacity, high rate characteristics and high cycle characteristics.

Fused-ring quinone-substituted polynorbornene, electrode active material and secondary battery

Provided is a composition comprising: a charge-transporting substance that comprises N,N'-diphenylbenzidine; an electron-accepting dopant substance; and an organic solvent. This composition is suitable, for example, as a composition for the anode buffer layer of an organic thin film solar cell, said composition being used to produce a thin film that is suitable for use as an anode buffer layer that makes it possible to achieve an organic thin film solar cell having a high photoelectric conversion efficiency.

Composition for anode buffer layer of organic thin film solar cell and organic thin film solar cell

A ion-conductive fused-ring quinone polymer includes recurring units of formula (1) and/or (2) below wherein each X is independently a single bond or a divalent group, and Aand Aare each independently an aromatic hydrocarbon ring or an oxygen atom or sulfur atom-containing aromatic heterocycle that forms together with two carbon atoms on a benzoquinone skeleton. This polymer is a material having charge-storing properties which, when used as an electrode active material, is capable of providing a high-performance battery possessing high capacity, high rate characteristics and high cycle characteristics.

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Funabashi, Japan

Takuji Yoshimoto