Nanoscale Porous Framework of Lithium Titanate for Ultrafast Lithium Insertion

被引:169
作者
Feckl, Johann M. [1 ,2 ]
Fominykh, Ksenia [1 ,2 ]
Doeblinger, Markus [1 ,2 ]
Fattakhova-Rohlfing, Dina [1 ,2 ]
Bein, Thomas [1 ,2 ]
机构
[1] Univ Munich LMU, Dept Chem, D-81377 Munich, Germany
[2] Univ Munich LMU, Ctr Nanosci CeNS, D-81377 Munich, Germany
关键词
lithium insertion; lithium titanate; nanocrystals; solvothermal synthesis; ultrafast materials; NANOCRYSTALLINE LI4TI5O12; RATE PERFORMANCE; ENERGY-STORAGE; NANOPARTICLES; BATTERIES; CHARGE;
D O I
10.1002/anie.201201463
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Mesoporous lithium titanate has been prepared with a titanate morphology that leads to the fastest insertion of lithium. It features a gravimetric capacity of about 175 mAhg -1 and delivers up to 73% of the maximum capacity at up to 800 C (4.5 s) without deterioration over 1000 cycles. A key feature is a fully crystalline interconnected porous framework composed of spinel nanocrystals of only a few nanometers in size. Scale bar: 10 nm. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:7459 / 7463
页数:5
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