Sony Corporation

Murata Manufacturing Co., Ltd.

Koichiro Hinokuma

Masafumi Ata

Constance Gertrud Rost

Kazuaki Fukushima

Kazuhiro Noda

Yongming Li

Bjoern Pietzak

Bj&ouml;rn Pietzak

Haruo Watanabe

Hiroshi Miyazawa

Yuichi Sabi

Momoe Adachi

Hiroyuki Morioka

Tatsuya Furuya

Ritsuko Inoue

Katsunori Takahara

Yui Senda

Tomikazu Watanabe

Yong Ming Li

Reina Ichikawa

Yosuke Saito

Shinichiro Yamada

Seiichiro Tabata

Kazumasa Takeshi

Shuichi Takizawa

Hironori Iida

Shun Yamanoi

Minehisa Imazato

Ryuichiro Maruyama

Atsushi Nishimoto

Hideharu Miyagaki

Kenji Kishimoto

Hirofumi Okui

Tohru Udaka

Nawal Kishor Mal

Björn Pietzak

In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and is able to be manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Thin film solid state lithium ion secondary battery and method of manufacturing the same

An electrode material for a secondary cell includes a porous carbon material having an absolute value of a differential value of a mass using a temperature as a parameter exceeding 0 at 360&#xb0; C. and being 0.016 or more at 290&#xb0; C. provided by thermally analyzing a mixture of the porous carbon material and Ssulfur at a mass ratio of 1:2.

Electrode material and secondary cell

In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge.

Disclosed herein are an ion-dissociative functional compound, a method for production thereof, an ionic conductor, and an electrochemical device, the ion-dissociative functional compound being thermally and chemically stable under the condition required of fuel cells and being suitable for use as a material such as protonic conductor in fuel cells. The proton-dissociative functional compound shown in FIG.A is composed of a fullerene Cmolecule and about 10 sulfonic acid groups &#x2014;SOH as proton-dissociative groups each attached to the fullerene through a difluoromethane group &#x2014;CF&#x2014;. The proton-dissociative functional compound shown in FIG.B is composed of fullerene molecules three-dimensionally connected to each other through a linking group &#x2014;CFSONHSOCF&#x2014;. It contains, as the proton-dissociative group, sulfoneimide groups &#x2014;SONHSO&#x2014; and sulfoneamide groups &#x2014;SOHin addition to sulfonic acid groups. These compounds are prepared by introduction of difluoro(fluorosulfonyl)methyl groups into fullerene molecules, and ensuing imidization and hydrolysis.

Ion-dissociative functional compound, method for production thereof, ionic conductor, and electrochemical device

Disclosed herein are an ionic conductor including a proton conductor, a process for production thereof, and an electrochemical device (such as fuel cell) with said ionic conductor, said ionic conductor being superior in ionic conductivity, water resistance, and film forming properties. The ionic conductor is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups. The polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters; therefore, it permits many ion dissociating functional group to be introduced thereinto. Moreover, if ion dissociating functional groups are introduced into also the connecting group, it is possible to prevent the concentration of ion dissociating functional groups from decreasing as the result of polymerization. The polymer can be easily synthesized by simple condensation, substitution, and hydrolysis. Therefore, the process is suitable for mass production in high yields.

Ionic conductor, process for production thereof, and electrochemical device

A proton conductor, a method for manufacturing the same, and an electrochemical device using the proton conductor are provided. The proton conductor includes a carbon derivative which has a carbon material selected from the group consisting of a fullerene molecule, a cluster consisting essentially of carbon, a fiber-shaped carbon anPlease do not hesitate to contact us with any questions d a tube-regarding this matter shaped carbon, and mixtures thereof, and at least a proton dissociative group, the proton dissociative group being bonded to the carbon material via a cyclic structure of tricyclic or more. The method includes the steps of obtaining the carbon derivative, hydrolyzing the derivative with alkali hydroxide, subjecting the hydrolyzed product to ion exchange, and forming a group with proton-dissociating properties.

Proton conductor and method for manufacturing the same, and electrochemical device

Hybrid silica polymer applicable to electrochemical elements and a method for economical production thereof, the former excelling in thermal stability, mechanical stability, solvent resistance, and proton conductivity at low humidity is provided. The method includes a step of heating a mixture of 3-mercaptopropyltrialkoxylsilane, surfactant, water, and base or acid for their reaction with one another at 25 to 180&#xb0; C., thereby providing a hybrid thiol group-containing silica polymer, and an optional step of oxidizing said hybrid thiol group-containing silica polymer with a peroxide, thereby giving a hybrid silica polymer which is composed of hybrid (thiol group-containing and/or sulfonic group-containing) silica polymer. The resulting silica polymer is used as a proton conducting material for electrochemical elements such as fuel cells, capacitors, and electrolytic cells.

Hybrid silica polymer, method for production thereof, and proton-conducting material

A proton conductor mainly contains a carbonaceous material derivative, such as, a fullerene derivative, a carbon cluster derivative, or a tubular carbonaceous material derivative in which groups capable of transferring protons, for example, &#x2014;OH groups or &#x2014;OSOH groups are introduced to carbon atoms of the carbonaceous material derivative. The proton conductor is produced typically by compacting a powder of the carbonaceous material derivative. The proton conductor is usable, even in a dry state, in a wide temperature range including ordinary temperature. In particular, the proton conductor mainly containing the carbon cluster derivative is advantageous in increasing the strength and extending the selection range of raw materials. An electrochemical device, such as, a fuel cell, that employs the proton conductor is not limited by atmospheric conditions and can be of a small and simple construction. The proton conductor may contain a polymer in addition to the carbonaceous material derivative, which conductor can be formed, typically by extrusion molding, into a thin film having a large strength, a high gas permeation preventive ability, and a good proton conductivity.

Proton conductor, production method thereof, and electrochemical device using the same

An ionic conductor, such as a proton conductor, a process for production thereof, and an electrochemical device, such as fuel cell, that includes the ionic conductor is provided. The ionic conductor of the present invention is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups which can also include one or more ion dissociating functional groups. In this regard, the polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters, thus displaying enhanced ionic conduction properties.

A proton conductor, a method for manufacturing the same, and an electrochemical device using the proton conductor are provided. The proton conductor includes a carbon derivative which has a carbon material selected from the group consisting of a fullerene molecule, a cluster consisting essentially of carbon, a fiber-shaped carbon and a tube-shaped carbon, and mixtures thereof; and at least a proton dissociative group, the proton dissociative group being bonded to the carbon material via a cyclic structure of tricyclic or more. The method includes the steps of obtaining the carbon derivative, hydrolyzing the derivative with alkali hydroxide, subjecting the hydrolyzed product to ion exchange, and forming a group with proton-dissociating properties.

A proton conducting electrode is provided. The proton conducting electrode includes a mixture of a fullerene derivative and an electron conducting catalyst, wherein the fullerene derivative is composed of carbon atoms that can form fullerene molecules and one or more proton (H) dissociating groups introduced into said carbon atoms. The proton conducting electrode can be manufactured by coating a mixture containing the fullerene derivative and the electron conducting catalyst on a gas transmitting current collector. The proton conducting electrode can be used in a variety of applications, such as in electrochemical devices, including fuel cells.

Proton conducting electrode, method for preparation thereof and electro-chemical device

The invention provides an apparatus for producing hydrogen and a method for producing hydrogen which effectively produce hydrogen in the low humidity atmosphere without humidifier or dehumidifier, and an electrochemistry device and a method for generating electrochemistry energy which generate electrochemistry energy by an oxidation-reduction reaction using hydrogen. A fullerene derivative where a proton (H) dissociating group is introduced into a fullerene, is used as a composition material of a proton conductor, water is supplied to an anodein a vapor or gas state and is electrolyzed, and produced protons (H) are conducted to a cathodethrough the proton conductorand converted into hydrogen here. Moreover, hydrogen produced in such a way is decomposed into protons (H) at the cathode, the protons are conducted to the anodethrough the proton conductorand converted into water there, and then, electrochemistry energy is extracted between the cathodeand the anode

Apparatus for producing hydrogen, electrochemical device, method for producing hydrogen and method for generating electrochemical energy

A proton conductor mainly contains a carbonaceous material derivative, such as, a fullerene derivative, a carbon cluster derivative, or a tubular carbonaceous material derivative in which groups capable of transferring protons, for example, &mdash;OH groups or &mdash;OSO H groups are introduced to carbon atoms of the carbonaceous material derivative. The proton conductor is produced typically by compacting a powder of the carbonaceous material derivative. The proton conductor is usable, even in a dry state, in a wide temperature range including ordinary temperature. In particular, the proton conductor mainly containing the carbon cluster derivative is advantageous in increasing the strength and extending the selection range of raw materials. An electrochemical device, such as, a fuel cell, that employs the proton conductor is not limited by atmospheric conditions and can be of a small and simple construction. The proton conductor may contain a polymer in addition to the carbonaceous material derivative, which conductor can be formed, typically by extrusion molding, into a thin film having a large strength, a high gas permeation preventive ability, and a good proton conductivity.

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Kanagawa, Japan

Koichiro Hinokuma