Nisshinbo Holdings Inc.

Gunma University

Hokkaido University

Chihiro Fujii

Takeaki Kishimoto

Jun-ichi Ozaki

Siyu Ye

Yoshikazu Kobayashi

Rieko Kobayashi

Dustin William H Banham

Jun-Ichi Ozaki

Haruo Kumagai

Akiko Taira

Yasuhiro Oshima

Miki Nakayama

A cathode of a battery including an electrolyte membrane, containing a first layer which contains 0.3 mg/cmor more and 9.0 mg/cmor less of a carbon catalyst; and a second layer which is arranged between the electrolyte membrane and the first layer in the battery, and which contains 0.002 mg/cmor more and 0.190 mg/cmor less of platinum. The carbon catalyst has a ratio of a mesopore volume to a total pore volume of 30% or more.

Cathode, membrane electrode assembly, and battery

A cathode, a membrane electrode assembly, and a battery, each has excellent durability. The cathode is a cathode of a battery including an electrolyte membrane, the cathode including: a first layer which contains 0.3 mg/cmor more and 9.0 mg/cmor less of a carbon catalyst; and a second layer which is arranged between the electrolyte membrane and the first layer in the battery, and which contains 0.002 mg/cmor more and 0.190 mg/cmor less of platinum.

A battery electrode, a composition for a catalyst layer of a battery electrode, and a battery having excellent characteristics at low cost. The battery electrode includes a catalyst layer containing a non-platinum catalyst and platinum particles not being carried on the non-platinum catalyst, wherein a content of the platinum particles per unit area of the battery electrode is 0.0010 mg/cmor more and 0.1200 mg/cmor less.

Cell electrode, composition for cell electrode catalyst layer, and cell

Provided are a carbon catalyst for hydrogen production having an excellent catalytic activity, a production method therefor, and a method of producing hydrogen using the catalyst. The carbon catalyst for hydrogen production is a carbon catalyst, which is obtained by carbonizing a raw material including an organic substance and a transition metal, the catalyst being used for hydrogen production by thermal decomposition of a hydrocarbon compound and/or an oxygen-containing organic compound. Further, the carbon catalyst for hydrogen production may be obtained by loading an alkaline earth metal on a carbonized material produced by the carbonization.

Carbon catalyst for hydrogen production, method for producing catalyst, and method for producing hydrogen using catalyst

Provided is a hydrogen-storing carbon material with improved hydrogen storage capacity. The hydrogen-storing carbon material has a total pore volume of 0.5 cm/g or more, and a ratio of a total mesoporous volume to a total microporous volume per unit weight of 5 or more. In addition, the hydrogen-storing carbon material may have a nitrogen content of 0.5 wt % or more and less than 20 wt %. In addition, the hydrogen-storing carbon material may have a stable potential of &#x2212;1.28 V or more when a cathode current with respect to the hydrogen-storing carbon material is held at 1,000 mA/g in electrochemical measurement by chronopotentiometry involving using the hydrogen-storing carbon material in a working electrode in a three-electrode method.

Growing community of inventors

Chiba, Japan

Chihiro Fujii