I Doping 1D Li4Ti5O12 Nanofibers as Anode Materials for Lithium-Ion Battery

Kai Yang; Zhanyu Li; Yuguang Zhao; Yudong Wang; Fei Gao; Jianling Li

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I Doping 1D Li₄Ti₅O₁₂ Nanofibers as Anode Materials for Lithium-Ion Battery

机译：掺杂一维Li _{4 Ti _{5 O _{12 纳米纤维作为锂离子电池负极材料}}}

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One-dimensional (1D) nanostructures provide shortened Li diffusion pathways, structural stabilityand large interfacial area between the active material and electrolyte, which enhances the reversibilityand cycling performance of spinel Li4Ti5O12 (LTO). Herein, we have successfully synthesized iodine(I) doping 1D LTO nanofibers by an electrospinning technique and studied the I doping effect on thelattice parameter, morphology and electrochemical properties of 1D LTO nanofibers. The 1DLi4Ti5O12Ix (x=0.3) nanofibers have excellent rate capability, specific capacity and cycling stability+ because of the shortened diffusion length for Li transport, which are mainly due to cubic latticeparameter of LTO increase with I doping. Also, Cyclic voltammetry (CV) and Electrochemicalimpedance spectroscopy (EIS) results confirmed that I doping can reduce the electrochemicalpolarization of LTO and increase the lithium ion diffusion coefficient, which can improve theelectrochemical performance of LTO.

机译：一维（1D）纳米结构提供了缩短的Li扩散途径，结构稳定性和活性材料与电解质之间的大界面面积，从而增强了尖晶石Li4Ti5O12（LTO）的可逆性和循环性能。在这里，我们已经成功地通过电纺技术合成了掺杂碘（I）的一维LTO纳米纤维，并研究了I掺杂对一维LTO纳米纤维的晶格参数，形貌和电化学性能的影响。 1DLi4Ti5O12Ix（x = 0.3）纳米纤维具有优异的速率能力，比容量和循环稳定性+，这是因为缩短了Li传输的扩散长度，这主要是由于L的立方晶格参数随I掺杂而增加。此外，循环伏安法（CV）和电化学阻抗谱（EIS）结果证实，掺杂I可以减少LTO的电化学极化并增加锂离子扩散系数，从而可以改善LTO的电化学性能。

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《International Journal of Electrochemical Science》 |2016年第12期|共11页
作者
Kai Yang; Zhanyu Li; Yuguang Zhao; Yudong Wang; Fei Gao; Jianling Li;
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1. 4Ti 5O 12 porous nanofibers as high-rate and ultralong-life anode materials for lithium-ion batteries]]> [J] . Min Bian, Yong Yang, Ling Tian The journal of physics and chemistry of solids . 2018,第期

机译：<！[CDATA [CONCATA [碳化LI 4 TI 5 O 12 多孔纳米纤维作为锂离子电池的高速率和超级寿命阳极材料]]>
2. Li4Ti5O_(12)-based anode materials with low working potentials, high rate capabilities and high cyclability for high-power lithium-ion batteries: a synergistic effect of doping, incorporating a conductive phase and reducing the particle size [J] . Chunfu Lin, Xiaoyong Fan, Yuelong Xin Journal of Materials Chemistry, A. Materials for energy and sustainability . 2014,第26期

机译：具有低工作电位，高倍率能力和高可循环性的Li4Ti5O_（12）基负极材料，用于大功率锂离子电池：掺杂，掺入导电相并减小粒径的协同作用
3. Structural and Electrochemical Characteristics of Ca-Doped "Flower-like" Li4Ti5O12 Motifs as High-Rate Anode Materials for Lithium-Ion Batteries [J] . Wang Lei, Zhang Yiman, Guo Haoyue, Chemistry of Materials: A Publication of the American Chemistry Society . 2018,第3期

机译：具有Ca-掺杂的“花样”Li4Ti5O12基序作为锂离子电池的高速阳极材料的结构和电化学特性
4. Ultrathin Al-Doped ZnO Films Coated Li_4Ti_5O_(12) As an Anode Material with Excellent Cycling Stability and Rate Capability for Lithium-Ion Batteries [C] . Ye Jin, Han Yu, Yan Gao, Meeting of the Electrochemical Society;International Meeting on Chemical Sensors . 2020

机译：超薄Al掺杂的ZnO膜涂覆Li_4Ti_5O_（12）作为阳极材料，具有优异的循环稳定性和锂离子电池的速率能力
5. Surface Chemistry and Precursor Material Effects on the Performance of Pyrolyzed Nanofibers as Anodes for Lithium-ion Batteries. [D] . Loebl, Andrew James. 2012

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6. Spherical Li4Ti5O12/NiO Composite With Enhanced Capacity and Rate Performance as Anode Material for Lithium-Ion Batteries [O] . Jiequn Liu, Shengkui Zhong, Qingrong Chen, 2020

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机译：碳涂层尖晶石Li4Ti5O12 /润润-TiO2复合材料的构成为具有LiFepo4掺杂碳阴极的全锂离子电池中的改进阳极材料
8. High-Performance Lithium-Ion Battery Anode Based on the Core-Shell Heterostructure of Silicon-Coated Vertically Aligned Carbon Nanofibers. [R] . Klankowski, S. A., Rojeski, R. A., Cruden, B. A., 2013

机译：基于硅涂层垂直排列碳纳米纤维核壳异质结构的高性能锂离子电池正极。

I Doping 1D Li4Ti5O12 Nanofibers as Anode Materials for Lithium-Ion Battery

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I Doping 1D Li₄Ti₅O₁₂ Nanofibers as Anode Materials for Lithium-Ion Battery