Title:
転位によりイオン伝導度が高められた固体酸化物電解質
Document Type and Number:
Japanese Patent JP2006501626
Kind Code:
A
Abstract:
Dislocations are fabricated into electrolyte membrane films to increase ion conductivity. Ion and/or electron irradiation causes the growth of vacancy clusters within the thin film and collapsing into Frank dislocation loops that exhibit high ion conductivity. Maximum ion conductivity is accomplished by spatially reorienting the Frank dislocation loops during a following heat-treatment of the membrane. Thereby the dislocation loops form surface-to-surface continuous dislocations along which ions may propagate between membrane surfaces with minimal activation energies. Dislocation densities in the range of 108~1014 cm/cm3 may be fabricated with conventional irradiation techniques into ceramics such as, for example yttria stabilized zirconia and doped ceria.
Inventors:
Yuji Saito
Prinz, Fritz Bee
Park, Yong-Il
Oh Hey, Ryan
Prinz, Fritz Bee
Park, Yong-Il
Oh Hey, Ryan
Application Number:
JP2004548275A
Publication Date:
January 12, 2006
Filing Date:
May 29, 2003
Export Citation:
Assignee:
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
International Classes:
G01N27/41; H01B1/06; B05D3/02; B05D5/12; B05D7/24; C04B35/486; C04B35/50; C04B41/00; C04B41/52; C04B41/89; G01N27/26; G01N27/407; G01N27/409; H01B1/08; H01B13/00; H01M8/02; H01M8/12
Domestic Patent References:
| JPH02242566A | 1990-09-26 | |||
| JPH06283178A | 1994-10-07 | |||
| JPH03297005A | 1991-12-27 |
Attorney, Agent or Firm:
Yoichi Oshima