Ngk Insulators, Inc.

Nagoya Institute of Technology

Tatsuya Hattori

Yoshihiko Yamamura

Kenshin Kitoh

Naohito Yamada

Toshihiro Yoshida

Yosuke Sato

Akihiko Honda

Naomi Saito

Noriyuki Sonoyama

There is disclosed an electrode material for cells. The electrode material includes carbon, and a crystalline material composed of a layered double hydroxide and/or a cation-deficit metal oxide having a rock-salt structure. Carbon is complexed with the cation-deficit metal oxide and/or the layered double hydroxide.

Electrode material for battery and method for manufacturing same

Disclosed is an air electrode for a metal-air battery, the air electrode including a separator composed of a hydroxide-ion-conductive inorganic solid electrolyte being a dense ceramic material, and an air electrode layer disposed on the separator and containing an air electrode catalyst, an electron-conductive material, and a hydroxide-ion-conductive material, or containing an air electrode catalyst also serving as an electron-conductive material and a hydroxide-ion-conductive material. According to the present invention, the reaction resistance of the air electrode including the dense ceramic separator can be significantly reduced in a metal-air battery while ensuring the desired characteristics of the dense ceramic separator.

Air electrode for metal-air battery

An air electrode has a plurality of carbon nanotubes and a plurality of layered double hydroxide particles. The plurality of layered double hydroxide particles is supported on the plurality of carbon nanotubes.

Air electrode, metal-air battery and air electrode material

Provided is a separator-equipped air electrode for a metal-air battery, the separator-equipped air electrode including a separator composed of a hydroxide-ion-conductive inorganic solid electrolyte being a dense ceramic material; an air electrode layer containing an air electrode catalyst and an electron-conductive material, or containing an air electrode catalyst also serving as an electron-conductive material; and an intermediate layer disposed between the separator and the air electrode layer, improving the adhesion between the separator and the air electrode layer, and exhibiting hydroxide ion conductivity. The present invention enables an air electrode provided with a dense ceramic separator to ensure the desired characteristics of the dense ceramic separator and reduces the resistance of a metal-air battery (in particular, the interfacial resistance between the air electrode layer and the separator).

Separator-equipped air electrode for air-metal battery

The present invention provides a ceramic material capable of demonstrating compactness and Li ion conductivity to an extent that enables the use of the ceramic material as a solid-state electrolyte material for a lithium secondary battery, or the like. A ceramic material containing Li, La, Zr, Nb and/or Ta, as well as O and having a garnet-type or garnet-like crystal structure is used.

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Nagoya, Japan

Tatsuya Hattori