Sumitomo Electric Industries, Limited

Matsushita Electric Industrial Co., Ltd.

National Institute of Advanced Industrial Science and Technology

Sumitomo Electric Toyama Co., Ltd.

Sumitomo Electric Industries, Co.

Keizo Harada

Hideo Itozaki

Shuji Yazu

Naoji Fujimori

Shosaku Yamanaka

Kenichi Watanabe

Tetsuji Jodai

Kenjiro Higaki

Munehisa Ikoma

Nobuyasu Morishita

Masayuki Ishii

Hideo Kaiya

Hiroki Takeshima

Kiyoshi Hayashi

Takatoshi Takikawa

Takao Maeda

Shunsuke Ban

Saburo Tanaka

Takashi Matsuura

Nobuhiko Fujita

Hisao Hattori

Hidenori Nakanishi

Masahiro Kato

Takahiro Imai

Tetsuo Sakai

Kazuki Okuno

Noriyuki Yoshida

Satoshi Takano

Tsutomu Iwaki

Noriki Hayashi

Kenji Miyazaki

Takahiro Matsuura

Hitoshi Oyama

Hitoshi Tsuchida

Hidetoshi Saito

Koichi Sogabe

Toshiyuki Kosuge

Masaru Yao

Tadashi Omura

Hisashi Hosotani

Yasuo Tano

A battery electrode substrate includes a metallic porous body. The metallic porous body has a structure in which a surface of a plastic fiber in a woven or unwoven fabric is coated with a nickel film. The nickel film coats the surface with an average coverage ratio of not less than 85%.

Collector, battery electrode substrate, and methods for producing the same

A method of producing an electrode includes the steps of filling an active material in an electrode substrate made of woven or non-woven fabric having its fiber surface coated with metal, and pressing the electrode substrate to obtain an electrode, wherein the pressing is performed using the electrode substrate having a thickness of less than 2.0 t when the thickness of the electrode after the pressing is t. This ensues that the electrode substrate has a thickness allowing the active material of a sufficient amount to be filled therein, and a battery electrode in which the filled active material is unlikely to peel off from the electrode substrate can be produced. Accordingly, a battery electrode having a desired thickness and desired capacity and that can suppress degradation in battery performance due to repeated charge and discharge, and its producing method are provided.

Battery electrode producing method of filling active material into a metal coated fabric substrate

A porous metal body having a foam structure of 500 &#x3bc;m or less in average pore diameter, wherein the skeleton is composed of an alloy primarily including Fe and Cr, and Cr carbide or FeCr carbide is uniformly dispersed in the texture. The metal porous body is produced by preparing a slurry primarily containing an Fe oxide powder having an average particle diameter of 5 &#x3bc;m or less, at least one powder selected from metallic Cr, Cr alloys, and Cr oxides, a thermosetting resin, and a diluent, applying a coating of this slurry to a resin core body having a foam structure, performing drying, and thereafter, performing firing in a non-oxidizing atmosphere so as to produce a metal porous body having the aforementioned skeleton structure.

Porous metal article, metal composite material using the article and method for production thereof

An oil pump that can be reduced in weight and is excellent in wear resistance and easy to manufacture is provided. The oil pump includes an oil pump housing formed of aluminum alloy, and an inner rotor and an outer rotor that slide along the oil pump housing with contact kept therebetween to suck and discharge oil. Composite layers including porous metallic bodies are arranged at parts of the oil pump housing that contact the inner rotor and the outer rotor. Pores of the porous metallic bodies are impregnated with the aluminum alloy constituting the oil pump housing.

Oil pump

A metal porous body having a skeleton which has a foam structure, composed of an alloy composed mainly of Fe and Cr and includes a Cr carbide and/or FeCr carbide uniformly dispersed therein. The metal porous bodies are obtained by preparing a slurry mainly composed of an Fe oxide powder of average particle not more than 5 &mgr;m, at least one powder selected from among metallic Cr, Cr alloy and Cr oxide powders, thermosetting resin and a diluent; applying this slurry onto a foamed resin core body; then drying, and then forming a metal porous body by firing in a non-oxidizing atmosphere, including a heat-treatment at 950 to 1350&deg; C. The metal porous bodies thus obtained have excellent heat resistance, corrosion resistance and strength and are useful as electrode base plates, catalyst supports and filter materials, and furthermore, as metallic composite materials.

Metal porous bodies, method for preparation thereof and metallic composite materials using the same

A battery electrode substrate which is constituted of a porous metallic body structure having communicating pores at a porosity of at least 90% and an Fe/Ni multilayer structure wherein the skeletal portion of the porous metallic body is composed mainly of Fe and has an Ni covering layer on the surface thereof while pores communicating with the inside and outside of Fe skeletal portion exist in the Fe skeletal portion and the inside of the pores is covered with Ni. The electrode substrate is produced by applying an iron oxide powder of at most 20 .mu.m in an average particle size on a porous resin core body; heat treating the core to remove an organic resin component while simultaneously sintering Fe to obtain a porous Fe body; and then covering the Fe skeletal portion with Ni by electroplating. In this process, the iron oxide can be used in combination with carbon powder. Further, a nickel porous sintered body can also be produced using nickel oxide in place of iron oxide.

Battery electrode substrate and process for producing the same

An electrode plate for a battery is constructed from a porous metal body having at least one low-porosity part selectively arranged therein. A porous resin core is coated with a paste having a metal component, passed through rolls provided with at least one recess to thereby form at least one low-porosity part and sintered. The resultant electrode plate for battery is not only ensured with respect to strength and capable of improving battery performance but also advantageous in that it is available at lowered cost and free from apprehension of supply of raw materials.

Electrode plate for battery

Electrode plate for battery and process for producing the same

A semiconductor substrate comprising a single crystal substrate base such a silicon and a superconducting thin film layer deposited on said substrate base and composed of compound oxide such as Ln.sub.1 Ba.sub.2 Cu.sub.3 O.sub.7-.delta.. (Ln is lanthanide).

Semiconductor substrate having a superconducting thin film

An electrode substrate, for a battery, as a support for an active material used in a collector for a battery, comprising a metallic porous structure possessing interconnecting pores with a porosity of not less than 90% and a number of pores per cm of not less than 10 and having an Fe/Ni two-layer structure wherein Fe constitutes the interior of a skeleton of a porous body constituting the porous structure with the surface portion of the skeleton coated with Ni. Preferably, Fe constituting the interior of the skeleton has a purity of not less than 98% by weight, and the thickness of the nickel coating layer having an Fe content of not more than 10% by weight is 0.1 to 10 .mu.m. The ratio of thickness of the Fe-diffused layer to the thickness of the Ni coating layer is regulated to not more than 0.65 by forming a metallic porous body of Fe using a porous resin as a substrate, plating the metallic porous body with Ni, heat treating the plated body.

Electrode substrate for battery and process for preparing the same

A substrate having a superconducting thin film of compound oxide thereon. An intermediate layer consists of at least one layer of copper-containing oxide is interposed between the substrate and the superconducting thin film.

Substrate having a superconductor layer

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Itami, Japan

Keizo Harada