Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Holdings Corporation

Matushita Electric Industrial Co., Ltd.

Shinsuke Takeguchi

Hiroki Kusakabe

Kazuhito Hatoh

Hideo Ohara

Yoichiro Tsuji

Nobuhiro Hase

Toshihiro Matsumoto

Motohiro Suzuki

Hironobu Machida

Kentaro Shii

Eiichi Yasumoto

Takashi Nakagawa

Soichi Shibata

Yoshiaki Yamamoto

Susumu Kobayashi

Shinichi Arisaka

Masayo Sugou, Legal Representative

Tatsuto Yamazaki

Teruhisa Kanbara

Takeshi Tomizawa

Takayuki Urata

Takashi Kubo

Yasushi Sugawara

Junji Niikura

Norihiko Kawabata

Tatsuya Nakamura

Takeou Okanishi

Yoshiki Nagao

Miyuki Yoshimoto

Naoyuki Tani

Shigeyuki Unoki

Katsuzou Kokawa

Kazuaki Suito

Takashi Morimoto

Masaki Yamauchi

Satoru Fujii

Hisaaki Gyoten

Tomohiro Kuroha

Yasuo Takebe

Masato Hosaka

Mitsuo Yoshimura

Masaki Nobuoka

Kazufumi Nishida

Masaaki Nagai

Miho Gemba

Hideo Kasahara

Naotsugu Koashi

Yasuhiro Seki

Satoshi Otani

Izumi Hirasawa

Masayo Sugou

Hatoh Kazuhito

So Morioka

Tatsuto (deceased) Yamazaki

Yasumoto Eiichi

A cold storage material of the present disclosure includes: tetrahydrofuran; water; and at least one silver compound selected from the group consisting of silver phosphate represented by a chemical formula AgPO, silver carbonate represented by a chemical formula AgCO, and a silver oxide represented by a chemical formula AgO. This cold storage material has a melting point of 2 degrees Celsius or higher and 8 degrees Celsius or lower and a crystallization temperature of 0 degrees Celsius or higher and lower than the melting point.

Cold storage material and cooler box

Provided is a heat storage device () of the present disclosure comprises a heat storage material () containing sodium acetate trihydrate; a first electrode having a surface which is in contact with the heat storage material and formed of at least one selected from the group consisting of silver, a silver alloy, and a silver compound; a second electrode in contact with the heat storage material; an inorganic porous material contained in the heat storage material; and a power supply () for applying a voltage to the first electrode and the second electrode. The inorganic porous material has an average pore diameter of not more than 50 nanometers. The present invention provides a heat storage device capable of releasing heat by releasing a supercooled state by voltage application. The heat storage device can be used repeatedly.

Heat storage device

A heat storage apparatus according to the present disclosure includes a heat storage material and a member. The heat storage material forms a clathrate hydrate by cooling. The member has a surface with a plurality of holes. In the case that the lattice constant of the clathrate hydrate is denoted by L and the outside diameter of a cage included in the clathrate hydrate is denoted by D, the plurality of holes are spaced at intervals of 1L to 10L, and each of the plurality of holes has a hole diameter of 1D to 20D.

Heat storage apparatus, method for storing heat, and method for producing heat storage apparatus

The heat storage apparatus of the present disclosure includes a casing, a heat storage material that is located in the casing, a stirrer that is located in the casing, that is in contact with the heat storage material, and that rotates to stir the heat storage material, and a projection that is in contact with the heat storage material, that projects from the stirrer, and that rotates with rotation of the stirrer. The projection is continuously in contact with an inner face of the casing while the stirrer rotates.

Heat storage apparatus

A heat storage apparatus according to the present disclosure includes a casing, a heat storage material, and movable components. An internal space in the casing is partitioned into a plurality of spaces. The heat storage material is located in each of the plurality of spaces. At least one movable component is disposed in contact with the heat storage material in each of the plurality of spaces, and is capable of changing a position thereof relative to a position of the casing as time proceeds.

Heat storage apparatus and method of completing crystallization of heat storage material

A polymer electrolyte fuel cell according to the present invention includes: a unit cell including a membrane-electrode assembly and a pair of separators; a manifold; a gas introducing member; and a first member. A recess is formed at a gas lead-out port side of the gas introducing member so as to be connected to the gas lead-out port. The first member is provided such that a communication portion thereof communicates with the manifold. The gas introducing member is provided such that: the recess communicates with the communication portion; and when viewed from a thickness direction of the polymer electrolyte membrane, the gas lead-out port and a main surface of the first member overlap each other.

Polymer electrolyte fuel cell with a recess is formed downstream of a gas lead-out port

Provided is a latent heat cold storage material containing: water; a crystalline powder; and at least one inorganic salt. The crystalline powder is formed of a compound having a saturated concentration of less than 7.0 wt % to an aqueous solution of the inorganic salt having a concentration of 25 wt % at 25&#xb0; C. A concentration of the crystalline powder exceeds a saturated concentration of the crystalline powder to the aqueous solution of the inorganic salt at 25&#xb0; C.

Latent heat cold storage material

A heat storage material composition contains a sugar alcohol and a stabilizer that allows the sugar alcohol to maintain a liquid state and a supercooled state. The stabilizer is one selected from (i) a salt that has a solubility of 9 g or more in 100 mL of 20&#xb0; C. water and gives a monovalent anion, (ii) a polymer prepared by using the salt as a monomer, and (iii) a polymer having a molecular weight of 7,000 or more and 4,000,000 or less prepared by using, as a monomer, an alcohol having a solubility of 9 g or more in 100 mL of 20&#xb0; C. water.

Heat storage material composition, heat storage device, and heat storage method

A latent heat storage material contains sodium acetate, water, and a supercooling stabilizer containing a group 11 metal-containing compound, and has a group 11 metal concentration of 2.0&#xd7;10ppm or less.

Latent heat storage material

A polymer electrolyte fuel cell according to the present invention includes: an electrolyte layer-electrode assembly (); a first separator (A) provided with a first reaction gas flowing region; and a second separator (B) provided with a second reaction gas flowing region. In the first separator (A), among one or more first turn portions (), at least one first turn portion () is provided with a first recess () and first projections (). In the second separator (B), among one or more second turn portions (), at least one second turn portion () is provided with a second recess () and second projections (). When seen in the thickness direction of the first separator (A), an overlap area is less than or equal to 5% of a gross area, the overlap area being a total overlap area between the first and second recesses (), the gross area being the total of the following areas: the area of all the first recesses (); and the area of all the second recesses ().

Polymer electrolyte fuel cell and fuel cell system including the same

A close attachment region is provided on the outer side relative to an outer edge portion of a gas diffusion layer and on the inner side relative to the inner edge portion of a gasket as seen from the thickness direction of a polymer electrolyte membrane, such that separators and a frame member are closely attached to each other. Thus, it becomes possible to suppress an increase in the manufacturing cost and a reduction in the power generation performance, which is attributed to the impurity eluted from the gasket and flowing toward the gas diffusion layer.

Fuel cell

A polymer electrolyte fuel cell of the present invention includes a membrane-electrode assembly () and separators (A andB). Each of the electrodes (A andB) includes a catalyst layer (A,B) and a gas diffusion layer (A,B). One main surface of the catalyst layer contacts the polymer electrolyte membrane (). The separator (A) includes a peripheral portion (A) and a portion (A) other than the peripheral portion. The peripheral portion (A) of the separator (A) is formed in an annular shape when viewed from a thickness direction of the separator (A) and is a region including a portion located on an inner side of the outer periphery of the separator (A). The separator (A) is configured such that a porosity of the peripheral portion (A) is higher than that of the portion (A) other than the peripheral portion.

Polymer electrolyte fuel cell

A fuel cell includes: a membrane electrolyte assembly which includes a polymer electrolyte membrane and a pair of catalyst electrodes between which the polymer electrolyte membrane is held and separators between which the membrane electrolyte assembly is held. The first separator includes first gas flow channels and second gas flow channels which are adjacent to the first gas flow channels, the first and second gas flow channels supplying an oxidizing gas or a fuel gas to the membrane electrolyte assembly. The first and second gas flow channels are parallel to each other and are alternately arranged, the first gas flow channels are larger in cross sectional area than the second gas flow channels. The second separator includes first gas flow channels parallel to the first and second gas flow channels of the first separator, and second gas flow channels which are adjacent to the first gas flow channels, the first and second gas flow channels supplying an oxidizing gas or a fuel to the membrane electrolyte assembly. The first and second gas flow channels are parallel to each other and are alternately arranged and the oxidizing gas or fuel gas supplied in the first and second gas flow channels of the first separator flows in an opposite direction to the oxidizing gas or fuel gas supplied in the first and second gas flow channels of the second separator.

A polymer electrolyte fuel cell of the present invention includes a membrane-electrode assembly () and separators (A,B). A plurality of reactant gas channels are formed on a main surface of at least one of the separator (A,B) and a gas diffusion layer (A,B). In a case where among the plurality of reactant gas channels, a reactant gas channel overlapping the peripheral portion of the electrode (A,B) twice is defined as a first reactant gas channel, and a reactant gas channel formed to overlap the peripheral portion of the electrode (A,B) and formed such that the length of a portion overlapping the peripheral portion is longer than a predetermined length is defined as a second reactant gas channel, the second reactant gas channel is formed such that the flow rate of a reactant gas flowing therethrough is lower than that of the reactant gas flowing through the first reactant gas channel or the second reactant gas channel does not exist.

Polymer electrolyte fuel cell comprising reactant gas channels overlapping a peripheral portion of an electrode

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Osaka, Japan

Shinsuke Takeguchi