Je-Nam Lee1*이제남1*
Advanced Batteries Research Center, Korea Electronics Technology Institute, Gyeonggi-do, 13509, Korea전자부품연구원 차세대전지연구센터
The demand for LIBs with higher energy densities has increased continuously
because the emergence of wider and more challenging applications including HEV and EV
has became imperative. However, in the case of anode material, graphite is insufficient to
meet this need. To meet such demand, several type of negative electrode materials like silicon,
tin, SiO, and transition metal oxide have been investigated for the advanced lithium
secondary batteries. Recently, lithium vanadium oxide, which has a layered structure, is
assumed as one of the promising anode material as alternative of graphite. This material
shows a high volumetric capacity, which is 1.5 times higher than that of graphite. However,
relative low electrical conductivity and particle fracture, which results in the electrolyte
decomposition and loss of electric contact between electrode, induce rapid capacity decay.
In this report, we investigated the effect of electrolyte additive on the electrochemical characteristics
of lithium vanadium oxide.
Keyword : Electrolyte, Additive, Anode, Lithium vanadium oxide