H. Watanabe et al., INVESTIGATION OF AN ELECTROLYTE FOR LITHIUM SECONDARY BATTERIES WITH LITHIUM-CONTAINING MANGANESE-DIOXIDE AS THE POSITIVE MATERIAL, Journal of power sources, 43(1-3), 1993, pp. 217-221
We have already developed lithium-containing manganese dioxide (CDMO,
composite dimensional manganese oxide) with excellent rechargeability
and high discharge capacity for use as a positive electrode material i
n lithium secondary batteries. We also have improved the cycle perform
ance of lithium-aluminum alloy for use as a negative electrode materia
l by adding manganese to aluminum. The effect of an electrolyte on bat
tery performance such as cycle life, discharge characteristics at low
temperature and storage characteristics, were investigated for CDMO/Li
-Al flat cells. LiCF3SO3 showed excellent discharge characteristics bo
th at room temperature and -20-degrees-C. In addition, the charge/disc
harge cycle at room temperature was best when using LiCF3SO3-ethylene
carbonate (EC)/1,2-butylene carbonate (BC)/1,2-dimethoxyethane (DME),
as electrolyte.