Electrochemical analysis of the effect of Cr coating the LiV3O8 cathode in a lithium ion battery with a lithium powder anode.
作者： Jae Ha Lee , Jun Kyu Lee , Woo Young Yoon
DOI: 10.1021/AM401334B
关键词:
摘要: Rechargeable 2032-coin-type cells were produced with Li-powder anodes (i.e., electrodes, LPEs) and either Cr-coated lithium trivanadate (Li1+xV3O8, LVO) cathodes or uncoated LVO cathodes. The initial discharge capacity of a cell an LPE cathode (Cellcoated) was 252 mAh g −1 at 0.2 C-rate that (Cellbare) 223 . After the 50th cycle, Cellcoated exhibited higher retention (about 89%) than Cellbare 78%). Changes in surface morphology observed using scanning electron microscopy energy-dispersive X-ray spectroscopy. change electrical conductivity measured impedance analysis. electrochemical properties also evaluated based on differential curve, voltage profiles, versus number cycles.
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