Authors
Li Zhong, Robert R Mitchell, Yang Liu, Betar M Gallant, Carl V Thompson, Jian Yu Huang, Scott X Mao, Yang Shao-Horn
Publication date
2013/5/8
Journal
Nano letters
Volume
13
Issue
5
Pages
2209-2214
Publisher
American Chemical Society
Description
In this Letter, we report the first in situ transmission electron microscopy observation of electrochemical oxidation of Li2O2, providing insights into the rate limiting processes that govern charge in Li–O2 cells. In these studies, oxidation of electrochemically formed Li2O2 particles, supported on multiwall carbon nanotutubes (MWCNTs), was found to occur preferentially at the MWCNT/Li2O2 interface, suggesting that electron transport in Li2O2 ultimately limits the oxidation kinetics at high rates or overpotentials.
Scholar articles
L Zhong, RR Mitchell, Y Liu, BM Gallant, CV Thompson… - Nano letters, 2013