Abstract
LiCoO2 sample prepared by high-temperature solid state calcination shows a typical hexagonal structure with a single phase and fine particle size distribution. The high-voltage electrolyte with additive fluoroethylene carbonate (FEC) has been used. Electrochemical results show that the initial discharge capacities of the prepared LiCoO2 cathode are 157.7, 169.5, 191.0, and 217.5 mAh g−1 in the voltage ranges of 3.0–4.3, 3.0–4.4, 3.0–4.5, and 3.0–4.6 V, respectively. The capacity increases, while the initial coulombic efficiency and capacity retention decrease with increasing the charge cutoff voltage. The capacity retention is only 10.4 % after 200 cycles at 1C rate in the voltage range of 3.0–4.6 V. X-ray diffraction measurements confirm structural changes of the layered material in the different voltage ranges. A phase transition from the O3 to the H1-3 phase can be observed when LiCoO2 is charged above 4.5 V. The AC impedance analysis indicates that the resistances (R (sf+b), R ct) of the prepared LiCoO2 rapidly increase when the cell is charged to higher voltage. The amount of dissolved Co into the electrolyte also greatly increases with increasing the charge cutoff voltage.
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References
Goodenough JB, Kim Y (2010) Chem Mater 22:587
Scrosati B, Garche J (2010) J Power Sources 195:2419
D'Andrea S, Panero S, Reale P, Scrosati B (2000) Ionics 6:127
Mizushima K, Jones PC, Wiseman PJ, Goodenough JB (1980) Mater Res Bull 15:783
Gu X, Liu J-L, Yang J-H, Xiang H-J, Gong X-G, Xia Y-Y (2011) J Phys Chem C 115:12672
Jo M, Jeong S, Cho J (2010) Electrochem Commun 12:992
Chebiam RV, Prado F, Manthiram A (2001) Chem Mater 13:2951
Luo W, Dahn JR (2009) Electrochim Acta 54:4655
Su L, Jing Y, Zhou Z (2011) Nanoscale 3:3967
Kraytsberg A, Ein-Eli Y (2012) Adv Energy Mater 2:922
Takahashi Y, Tode S, Kinoshita A, Fujimoto H, Nakane I, Fujitani S (2008) J Electrochem Soc 155:A537
Kim YJ, Cho J, Kim T-J, Park B (2003) J Electrochem Soc 150:A1723
Amatucci GG, Tarascon JM, Klein LC (1996) Solid State lonics 83:167
Reimers JN, Dahn JR (1992) J Electrochem Soc 139:2091
Ohzuku T, Ueda A (1994) J Electrochem Soc 141:2972
Takamatsu D, Mori S, Orikasa Y, Nakatsutsumi T, Koyama Y, Tanida H, Arai H, Uchimoto Y, Ogumi Z (2013) J Electrochem Soc 160:A3054
Luo W, Li X, Dahn JR (2010) J Electrochem Soc 157:A993
Van der Ven A, Aydinol MK, Ceder G (1998) Phys Rev B 58:2975
Kramer D, Ceder G (2009) Chem Mater 21:3799
Moriwake H, Kuwabara A, Fisher CA, Huang R, Hitosugi T, Ikuhara YH, Oki H, Ikuhara Y (2013) Adv Mater 25:618
Chen Z, Lu Z, Dahn JR (2002) J Electrochem Soc 149:A1604
Lu X, Sun Y, Jian Z, He X, Gu L, Hu Y-S, Li H, Wang Z, Chen W, Duan X, Chen L, Maier J, Tsukimoto S, Ikuhara Y (2012) Nano Lett 12:6192
Eom J, Cho J (2008) J Electrochem Soc 155:A201
Etacheri V, Haik O, Goffer Y, Roberts GA, Stefan IC, Fasching R, Aurbach D (2012) Langmuir 28:965
Wu B, Ren Y, Mu D, Liu X, Zhao J, Wu F (2012) J Solid State Electrochem 17:811
Xia H, Lu L, Meng YS, Ceder G (2007) J Electrochem Soc 154:A337
Moss PL, Au G, Plichta EJ, Zheng JP (2009) J Power Sources 189:66
Rodrigues S, Munichandraiah N, Shukla AK (1999) J Solid State Electrochem 3:397
Aurbach D, Markovsky B, Rodkin A, Levi E, Cohen YS, Kim H-J, Schmidt M (2002) Electrochim Acta 47:4291
Acknowledgments
This work was financially supported by the National Basic Research Program of China (973 Program, 2014CB643406) and Major Special Plan of Science and Technology of Hunan Province, China (Grant No.2011FJ1005).
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Wang, Z., Wang, Z., Peng, W. et al. Structure and electrochemical performance of LiCoO2 cathode material in different voltage ranges. Ionics 20, 1525–1534 (2014). https://doi.org/10.1007/s11581-014-1098-z
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DOI: https://doi.org/10.1007/s11581-014-1098-z