Surface layer formed on silicon thin-film electrode in lithium bis(oxalato) borate-based electrolyte
作者： Nam-Soon Choi , Kyoung Han Yew , Ho Kim , Sung-Soo Kim , Wan-Uk Choi
DOI: 10.1016/J.JPOWSOUR.2007.07.058
关键词:
摘要: Abstract A Si thin-film electrode of 200 nm is prepared using E-beam evaporation and deposition on copper foil. The use a lithium bis(oxalato) borate (LiBOB)-based electrolyte markedly improves the discharge capacity retention electrode/Li half-cell during cycling. surface layer formed in ethylene carbonate/diethyl carbonate (3/7) with 1.3 M LiPF6 or 0.7 M LiBOB characterized by means Fourier transform infrared spectroscopy X-ray photoelectron spectroscopic analysis. morphology after cycling investigated scanning electron microscopy. relationship between physical electrochemical performance discussed.
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