Tiny Li4Ti5O12 nanoparticles embedded in carbon nanofibers as high-capacity and long-life anode materials for both Li-ion and Na-ion batteries.
Tiny Li4Ti5O12 nanoparticles embedded in carbon nanofibers as high-capacity and long-life anode materials for both Li-ion and Na-ion batteries.
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DOI：
10.1039/c3cp53882f
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发表时间：
2013-11
期刊：
影响因子：
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通讯作者：
Jun Liu;K. Tang;Kepeng Song;P. V. van Aken;Yan Yu;J. Maier
中科院分区：
文献类型：
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作者：
Jun Liu;K. Tang;Kepeng Song;P. V. van Aken;Yan Yu;J. Maier
采用静电纺丝和Ar气氛下退火的可扩展合成技术合成了嵌在碳纳米纤维中的微小Li 4 Ti 5 O 12纳米颗粒（Li4Ti5O12@C分级纳米纤维），目的是将其用作高容量和高倍率性能锂离子和钠离子电池的阳极材料。Li4Ti5O12@C分级纳米纤维在10 C下1000次循环后表现出约145.5mA h g（-1）的高稳定放电容量。对于Na离子存储性能，在前100次循环期间，在0.2C下稳定地保持约162.5mA h g（-1）的可逆容量。
Tiny Li4Ti5O12 nanoparticles embedded in carbon nanofibers (Li4Ti5O12@C hierarchical nanofibers) were synthesized using a scalable synthesis technique involving electrospinning and annealing in an Ar atmosphere for the purpose of using them as anode materials for high-capacity and high-rate-capability Li-ion and Na-ion batteries. The Li4Ti5O12@C hierarchical nanofibers exhibited high stable discharge capacities of about 145.5 mA h g(-1) after 1000 cycles at 10C for the Li-ion battery anode. For Na-ion storage performance, a reversible capacity of approximately 162.5 mA h g(-1) is stably maintained at 0.2C during the first 100 cycles.