Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7730280 | Journal of Power Sources | 2015 | 10 Pages |
Abstract
Ball-on-3-Ball bending strength tests and fractography conducted on anode and cathode half-cells revealed the underlying mechanisms, which lead to cell fracture. They were found to be different for the cathode and the anode side and that they change with temperature and ageing. Both anode and cathode sides exhibit the lowest strength at T = 850 °C, which is greatly reduced to the initial strength of the bare electrolyte. This reduction is the consequence of the formation of cracks in the electrode layer which either directly penetrate into the electrolyte (anode side) or locally increase the stress intensity level of pre-existing flaws of the electrolytes at the interface (cathode side).
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Felix Fleischhauer, Raul Bermejo, Robert Danzer, Andreas Mai, Thomas Graule, Jakob Kuebler,