The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Mar. 07, 2014
Daiichi Kigenso Kagaku Kogyo Co., Ltd., Osaka-shi, Osaka, JP;
Institute of National Colleges of Technology, Japan, Hachiouji-shi, JP;
DAIICHI KIGENSO KAGAKU KOGYO CO., LTD., Osaka-shi, JP;
INSTITUTE OF NATIONAL COLLEGES OF TECHNOLOGY, JAPAN, Hachiouji-shi, JP;
Abstract
The invention provides an electrolyte composition for solid oxide fuel cells, and a solid oxide fuel cell. The electrolyte composition has high electrical conductivity over a wide temperature range and is capable of imparting excellent output characteristics to a solid oxide fuel cell. Specifically, the invention provides a scandium oxide-stabilized zirconium oxide-based electrolyte composition used in a solid oxide fuel cell. The composition contains a compound represented by chemical formula (1): (ZrO)(ScO)(MO)(1), wherein 0.09≦x≦0.11 and 0<a≦0.025, and M is at least one element selected from Sm and Nd. The compound has an electrical conductivity at 600° C. of 1.4×10(S/cm) or more and a power density at 600° C. of 25.0 (mW/cm) or more. The compound is not undergoing a cubic to rhombohedral phase transition at a temperature range of 25 to 850° C.