TY - JOUR
T1 - A study of nano-sized surface coating on LiMn 2 O 4 materials
AU - Hung, Fei Yi
AU - Lui, Truan Sheng
AU - Liao, Hung Chi
N1 - Funding Information:
The authors are grateful to the Chinese National Science Council for its financial support (Contract: NSC 95-2221-E-006-197).
PY - 2007/7/15
Y1 - 2007/7/15
N2 - The present study used the Pechini process with a heat treatment to synthesize LiMn 2 O 4 powder (LMO). After surface coating, a nano-sized oxidative film of Li-Ni-Mn formed on the surface of the LMO-Ni powders. The concentration of Mn 3+ for the LMO-Ni powder was lower and the average electrovalence of Mn exceeded the theoretical value, resulting in the initial capacity of the LMO-Ni powder being lower than the LMO powder. However, the LMO-Ni powder with the Li/Ni film not only restrained Mn ions from dissolving into the electrolyte, but also improved the charge-discharge cycling capacity.
AB - The present study used the Pechini process with a heat treatment to synthesize LiMn 2 O 4 powder (LMO). After surface coating, a nano-sized oxidative film of Li-Ni-Mn formed on the surface of the LMO-Ni powders. The concentration of Mn 3+ for the LMO-Ni powder was lower and the average electrovalence of Mn exceeded the theoretical value, resulting in the initial capacity of the LMO-Ni powder being lower than the LMO powder. However, the LMO-Ni powder with the Li/Ni film not only restrained Mn ions from dissolving into the electrolyte, but also improved the charge-discharge cycling capacity.
UR - http://www.scopus.com/inward/record.url?scp=34249914524&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34249914524&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2007.03.033
DO - 10.1016/j.apsusc.2007.03.033
M3 - Article
AN - SCOPUS:34249914524
SN - 0169-4332
VL - 253
SP - 7443
EP - 7448
JO - Applied Surface Science
JF - Applied Surface Science
IS - 18
ER -