The solid electrolyte interface and its formed-behavior on silicon anode, which mainly occur during the first lithium ion insertion, were detected and analyzed by EIS, EDS and XPS. The results show that the SEI film on silicon electrode surface forms under a low lithium-inserting voltage. The thickness of SEI film increases with the
depth of the state of discharge. The depth XPS analysis of the electrode surface demonstrates the inhomogeneous characteristic of SEI film. LiF and Li2CO3 are the major lithiated components including in SEI film, whereas Li2CO3 more approaches to the surface exposed to the electrolyte and LiF is more close to the side of silicon electrode. Some trace of
silicon-containing compound, which might be the reacting product of electrolyte and silicon electrode, exists in SEI film.
WEN Zhong-Sheng
,
WANG Ke
,
XIE Jing-Ying
. Interface Formed on High Capacity Silicon Anode for Lithium Ion Batteries[J]. Journal of Inorganic Materials, 2007
, 22(3)
: 437
-441
.
DOI: 10.3724/SP.J.1077.2007.00437
[1] Kim J, Park Y. J. Journal of Power Sources, 2000, 91: 172--176.
[2] Peled E. Journal of the Electrochemical Society, 1979, 126: 2047--2051.
[3] Wu M S, Chiang Julia P C, Lin J. C. Journal of the Electrochemical Society, 2005, 152: A47--A52.
[4] Aurbach D, Zinigrad E, Cohen Y, et al. Solid State Ionics, 2002, 148: 405--416.
[5] Ota H, Sakata Y, Inoue A, et al. Journal of the Electrochemical Society, 2004, 151: A1659--A1669.
[6] Peled E, Golodnitsky D, Menachem C, et al. Journal of the Electrochemical Society, 1998, 145: 3482--3486.
[7] Wagner M R, Raimann P R, Trifonova A, et al. Electrochemical and Solid-State Letters, 2004, 7: A201--A205.
[8] Pena J S, Sandu J, Joubert O, et al. Electrochemical and Solid-State Letters, 2004, 7: A278--A281.
[9] Limthongkul P, Jang Y, Dudney N J, et al. Acta Materialia, 2003, 51: 1103--1113.
[10] Xie J, Varadan V K. Materials Chemistry and Physics, 2005, 91: 274--280.
[11] 左朋建, 尹鸽平(ZUO Peng-Jian, et al). 无机材料学报(Journal of Inorganic Materials), 2006, 21 (3): 599--603.
[12] Wu X D, Wang Z X, Chen L Q, et al. Electrochemistry Communications, 2003, 5: 935--939.
[13] Guo Z P, Wang J Z, Liu H K, et al. Journal of Power Sources, 2005, 146: 448--451.
[14] 文钟晟, 谢晓华, 王可, 等(WEN Zhong-Sheng, et al). 无机材料学报(Journal of Inorganic Materials), 2005, 20 (1): 139--143.
[15] 刘宇, 解晶莹, 杨军, 等(LIU Yu, et al). 无机材料学报(Journal of Inorganic Materials), 2003, 18 (1): 163--168.
[16] Eshkenazi V, Peled E, Burstein L, et al. Solid State Ionics, 2003, 170: 83--91.
[17] Anderson A M, Henningson A, Siegbahn H, et al. Journal of Power Sources, 2003, 119-121: 522--527.
[18] Blyth R I R, Buqa H, Netzer F P, et al. Applied Surface Science, 2000, 167: 99--106.
[19] Andersson A. Dissertation for Ph.D, Uppsala University, 2001. 22--24.