共 21 条
Nano Li4Ti5O12-LiMn2O4 batteries with high power capability and improved cycle-life
被引:88
作者:
Du Pasquier, Aurelien
[1
]
Huang, C. C.
[2
]
Spitler, Timothy
[3
]
机构:
[1] Rutgers State Univ, Energy Storage Res Grp, Dept Mat Sci & Engn, N Brunswick, NJ 08902 USA
[2] Hosokawa Micron Int Inc, Hosokawa Micron Powder Syst, Summit, NJ 07901 USA
[3] Altair Nanotechnol Inc, Reno, NV 89502 USA
基金:
美国国家科学基金会;
关键词:
LiMn2O4;
Li4Ti5O12;
Nanosized;
Laminate;
Li-ion battery;
Carbon coating;
TEMPERATURE PERFORMANCE;
ION BATTERY;
LIMN2O4;
SPINEL;
MECHANISM;
FAILURE;
D O I:
10.1016/j.jpowsour.2008.10.018
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
We report the effects of electrode thickness, cathode particle size and morphology, cathode carbon coating matching ratio and laminate structure on the electrochemical characteristics of nanosized Li4Ti5O12-LiMn2O4 batteries. We show that a correct adjustment of these parameters resulted in significant improvements in power capability and cycle-life of such devices, making them competitive, low-cost and safe battery chemistry for next generation Li-ion batteries. In addition, Li4Ti5O12 reversible specific capacity beyond three Li-ions intercalation is reported. (c) 2008 Elsevier B.V. All rights reserved.
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页码:508 / 514
页数:7
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