Cupric ion substituted LiFePO4/C composites with enhanced electrochemical performance for Li-ion batteries

被引：11

作者：

Ma, Zhipeng ^{[1
]}

Fan, Yugian ^{[1
]}

Shao, Guangjie ^{[1
,2
]}

Wang, Lin ^{[1
]}

Song, Jianjun ^{[1
]}

Wang, Guiling ^{[1
]}

Liu, Tingting ^{[1
]}

机构：

[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

[2] Yanshan Univ, Coll Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2014年 / 139卷

关键词：

Lithium iron phosphate; Cupric ion substitution; Cathode material; Lithium-ion battery; DOPED LIFEPO4/C; CATHODE MATERIALS; ELECTRODE MATERIALS; PHOSPHO-OLIVINES; LIXMPO4; M; LITHIUM; DIFFUSION; CONDUCTIVITY; TEMPERATURE; BEHAVIOR;

D O I：

10.1016/j.electacta.2014.07.030

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Cupric ion substituted LiFePO4/C composites were successfully synthesized via a two-step solid state reaction method. The SEM mapping demonstrates that cupric is well substituted in LiFePO4. Interestingly, the XRD spectra indicate that the substituted cupric could enlarge the interplanar distance of planes that parallelled to [010] direction of LiFePO4 crystallines, which could widens the diffusion channels of Li+ along [010] direction. For further research, Lithium ion storage behavior of as-synthesized cupric ion substituted LiFePO4/C products were investigated via various electrochemical strategies, and the highest capacity of 152.4, 144.4, 126.7 and 110.5 mAhg(-1) was achieved by LiFe0.985Cu0.015PO4/C at discharge rate of I, 2, 5, and 10 C, respectively. Compared the result with that of LiFePO4/C, we can see that cupric ion substituted LiFePO4/C composites show enhanced electrochemical activity for Li+ storage with decreased overpotential and increased high rate capability for electrochemical reaction. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：256 / 263

页数：8

共 50 条

[41] Comparison of electrospun and conventional LiFePO4/C composite cathodes for Li-ion batteries
Bachtin, Krystyna
Kaus, Maximilian
Pfaffmann, Lukas
Indris, Sylvio
Knapp, Michael
Roth, Christina
Ehrenberg, Helmut
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2016, 213 : 98 - 104
[42] Facile Micro Templating LiFePO4 Electrodes for High Performance Li-Ion Batteries
Singh, Deepak P.
Mulder, Fokko M.
Abdelkader, Amr M.
Wagemaker, Marnix
ADVANCED ENERGY MATERIALS, 2013, 3 (05) : 572 - 578
[43] The Effect of Different Amounts of Conductive Carbon Material on the Electrochemical Performance of the LiFePO4 Cathode in Li-Ion Batteries
Mohanty, Debabrata
Chang, Min-Jie
Hung, I-Ming
BATTERIES-BASEL, 2023, 9 (10):
[44] Preparation and characterization of LiFePO4/Ag composite for Li-ion batteries
Chen, YK
Okada, S
Yamaki, J
COMPOSITE INTERFACES, 2004, 11 (03) : 277 - 283
[45] Hierarchical Carbon-Coated LiFePO4 Nanoplate Microspheres with High Electrochemical Performance for Li-Ion Batteries
Wu, Yongmin
Wen, Zhenhai
Li, Jinghong
ADVANCED MATERIALS, 2011, 23 (09) : 1126 - 1129
[46] Development and challenge of LiFePO4 cathode materials for Li-ion batteries
Jiang, Zhi-Jun
Gongneng Cailiao/Journal of Functional Materials, 2010, 41 (03): : 365 - 368
[47] Synthesis of LiFePO4 nanoplatelets as cathode materials for Li-ion batteries
Kapaev R.R.
Novikova S.A.
Kulova T.L.
Skundin A.M.
Yaroslavtsev A.B.
Nanotechnologies in Russia, 2016, 11 (11-12): : 757 - 760
[48] LiFePO4 safe Li-ion polymer batteries for clean environment
Zaghib, K
Charest, P
Guerfi, A
Shim, J
Perrier, M
Striebel, K
JOURNAL OF POWER SOURCES, 2005, 146 (1-2) : 380 - 385
[49] Is LiFePO4 stable in water?: Toward greener li-ion batteries
Porcher, W.
Moreau, P.
Lestriez, B.
Jouanneau, S.
Guyomard, D.
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2008, 11 (01) : A4 - A8
[50] Probing the failure mechanism of nanoscale LiFePO4 for Li-ion batteries
Gu, Meng
Shi, Wei
Zheng, Jianming
Yan, Pengfei
Zhang, Ji-guang
Wang, Chongmin
APPLIED PHYSICS LETTERS, 2015, 106 (20)

← 1 2 3 4 5 →