Experimental and theoretical studies on reduction mechanism of vinyl ethylene carbonate on graphite anode for lithium ion batteries
被引:154
作者:
Hu, YS
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R ChinaChinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R China
Hu, YS
[1
]
Kong, WH
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R ChinaChinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R China
Kong, WH
[1
]
Hong, L
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R ChinaChinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R China
Hong, L
[1
]
Huang, XJ
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R ChinaChinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R China
Huang, XJ
[1
]
Chen, LQ
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R ChinaChinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R China
Chen, LQ
[1
]
机构:
[1] Chinese Acad Sci, Inst Phys, Lab Solid State Ion, Beijing 100080, Peoples R China
vinyl ethylene carbonate;
electrolyte additive;
density functional theory;
lithium ion batteries;
D O I:
10.1016/j.elecom.2003.10.024
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
Vinyl ethylene carbonate (VEC) has been investigated as an electrolyte additive for use in lithium ion batteries. Even in small additive amounts (5 vol%) VEC was capable of preventing propylene carbonate (PC) co-intercalation into graphite. The formation of a stable passivating film on the graphite surface is believed to be the reason for the improved cell performance. The passivating film resulting from the reductive decomposition of VEC on the graphite surface was comprehensively studied by FTIR and XPS as well as the density functional theory (DFT) calculations. (C) 2003 Elsevier B.V. All rights reserved.