Addition of different potassium salts into 1mol/L LiClO4/EC+DEC electrolyte can reduce the initial irreversible capacity loss at the first cycle and improve the reversible capacity and the rate capability of a natural graphite anode. Electrochemical impedance spectroscopy (EIS) and FTIR studies demonstrated the formation of a more conductive and thinner SEI layer on the graphite surface in the electrolyte containing a certain amount of potassium salt.
ZHENG Hong-He
,
WANG Xian-Jun
,
LI Bao
,
CHANG Zhao-Rong
. Potassium Salts as Electrolyte Additives for Enhancing Electrochemical Performances of Natural Graphite Anodes[J]. Journal of Inorganic Materials, 2006
, 21(5)
: 1109
-1113
.
DOI: 10.3724/SP.J.1077.2006.01109
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