The electrochemical stability of spinel electrodes coated with ZrO < inf> 2 , Al < inf> 2 O < inf> 3 , and SiO < inf> 2 from colloidal suspensions
Document Type
Article
Publication Date
11-26-2004
Abstract
Stoichiometric LiMn2O4 and substituted Li 1.05M0.05Mn1.9O4 (M = Al,Ni) spinel electrodes, coated with ZrO2, Al2O3, and SiO2 from colloidal suspensions, have been evaluated in lithium cells. ZrO2-coated Li1.05Ni0.05Mn 1.9O4 electrodes provide the best cycling stability at 50°C. The excellent cycling stability is attributed to a porous network of amphoteric ZrO2 particles, less than 4 nm in dimension, that protect the spinel surface from acid attack by scavenging HF and H2O from the electrolyte, while still allowing access of the electrolyte to the active electrode. © 2004 The Electrochemical Society. All rights reserved.
Publication Title
Journal of the Electrochemical Society
Recommended Citation
Kim, J.,
Johnson, C.,
Vaughey, J.,
Hackney, S.,
Walz, K.,
Zeltner, W.,
Anderson, M.,
&
Thackeray, M.
(2004).
The electrochemical stability of spinel electrodes coated with ZrO < inf> 2 , Al < inf> 2 O < inf> 3 , and SiO < inf> 2 from colloidal suspensions.
Journal of the Electrochemical Society,
151(10).
http://doi.org/10.1149/1.1793713
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12638