Mitsubishi Denki Kabushiki Kaisha

Yoshiaki Sakamoto

Isao Ishii

Kenro Mitsuda

Shizutaka Nishizako

Tadaki Murakami

Toshiaki Murahashi

Yoshikazu Utsumi

Tatsuo Mitsunaga

Hiroshi Takayanagi

Tatsuharu Nakamura

An electrochemical single battery such as fuel cells, and so forth, having an increased reaction area to augment its output density, which comprises a pair of electrode parts which are mutually opposed to be the electrodes when the electrochemical reaction is effected; reaction layers to carry out the electrochemical reaction, which are positioned between these two electrode parts, each being protruded alternately in one and the same direction from one electrode part toward the other electrode part in confrontation thereto, and being a slant with respect to said electrode parts; and an electrolyte layer interposed between these confronted reaction layers and holding therein an electrolyte which transmits ions to be produced at the time of the electrochemical reaction. A method for producing an electrochemical single battery, which comprises steps of: forming, on both surfaces of a planar electrolyte layer sheet, reaction layer sheets of a size smaller than the electrolyte layer sheet in lamination, followed by shaping the laminated sheets into the form of bellows; and pressing the laminated sheets in the form of bellows from a slant direction with respect to the sheet surface.

Electrochemical single battery and method for producing the same

A calcined member for arc-extinguishing chambers which are installed in electromagnetic contactors and magnetic circuit breakers for high-voltage applications. The calcined member consists of an inorganic composite material obtained by molding and heat-treating a starting material under pressurized condition, the starting material comprising 10 to 50% by weight of a mica powder as a base material, 10 to 50% by weight of a magnesium oxide as a charging material, and 25 to 60% by weight of a mixture powder of boric acid, boric anhydride and zinc oxide as a binder.

Calcined member for arc-extinguishing chambers

An arc resistant insulator composed of a composite composition comprising an insulating base material and a zinc borate hydrate. The insulating base material is composed of aluminum oxide and/or aluminum hydroxide and mica power. The zinc borate hydrate is composed essentially of 2ZnO.3B.sub.2 O.sub.3.3H.sub.2 O. The arc resistant insulator is prepared by mixing the insulating base material with a zinc borate hydrate forming material composed of normal boric acid, boric acid anhydride and zinc oxide and heating and compacting the mixture thus obtained in a closed system at a temperature of at least 155.degree. C. under pressure of at least 50 kg/cm.sup.2.

Arc resistant insulator

Growing community of inventors

Amagasaki, Japan

Yoshiaki Sakamoto