@article{xia_li_xue_qiu_zhang_zhang_2017, title={The electrochemical performance of SnSb/C nanofibers with different morphologies and underlying mechanism}, volume={32}, ISSN={["2044-5326"]}, url={https://publons.com/publon/26924648/}, DOI={10.1557/jmr.2016.508}, abstractNote={Abstract}, number={6}, journal={JOURNAL OF MATERIALS RESEARCH}, publisher={Cambridge University Press (CUP)}, author={Xia, Xin and Li, Zhiyong and Xue, Leigang and Qiu, Yiping and Zhang, Chuyang and Zhang, Xiangwu}, year={2017}, month={Mar}, pages={1184–1193} }
 @article{li_xu_yao_xue_yanilmaz_lee_zhang_2014, title={Coaxial electrospun Si/C-C core-shell composite nanofibers as binder-free anodes for lithium-ion batteries}, volume={258}, ISSN={["1872-7689"]}, url={https://publons.com/publon/11754002/}, DOI={10.1016/j.ssi.2014.02.003}, abstractNote={Si/C–C core–shell nanofiber structure was designed by dual nozzle coaxial electrospinning and subsequent carbonization. This core–shell nanofiber structure has Si/C composite as the core and carbon as the shell. Used as an anode in lithium-ion batteries, the carbon shell can help buffer the large volume expansion/contraction of the Si/C core during charge/discharge and restrain the capacity fading caused by the mechanical failure of the active material. Results showed that after 50 cycles, the discharge capacity of Si/C–C core–shell composite nanofibers was 63% higher than that of Si/C composite nanofibers and the capacity retention increased from 48.6 to 72.4%. It is, therefore, demonstrated that Si/C–C core–shell composite nanofibers are promising anode material with large reversible capacity and good cycling stability.}, journal={SOLID STATE IONICS}, author={Li, Ying and Xu, Guanjie and Yao, Yingfang and Xue, Leigang and Yanilmaz, Meltem and Lee, Hun and Zhang, Xiangwu}, year={2014}, month={May}, pages={67–73} }
 @article{li_chen_fu_xue_zhao_zhang_hu_zhou_zhang_2014, title={Comparison of Si/C, Ge/C and Sn/C composite nanofiber anodes used in advanced lithium-ion batteries}, volume={254}, ISSN={["1872-7689"]}, url={https://publons.com/publon/26924681/}, DOI={10.1016/j.ssi.2013.10.063}, abstractNote={Alloy anodes (Si, Ge and Sn) electrospun into carbon nanofibers as binder-free electrodes were synthesized and studied for rechargeable lithium-ion batteries. Alloy anode materials suffer from serious volume changes and nanoparticle aggregations during lithium insertion and extraction, resulting in rapid pulverization and capacity loss. Carbon nanofibers could help preserve the alloy anode materials during repeated cycling, and consequently maintain the cycling stability. In this work, it was found that with the increase in the amount of Si, Ge and Sn, the cycling stability was decreased due to the formation of large clusters within the carbon nanofiber matrix. Compared with Si/carbon nanofibers, Ge/carbon and Sn/carbon exhibited better cycling performance due to their improved nanoparticle distribution and smaller volume changes. The failure mechanism of the Si/carbon structure was explained in this article. It is believed that this study on Si/carbon, Ge/carbon and Sn/carbon composite nanofiber electrodes could help in designing alloy-based carbon composites with various structures for advanced lithium-ion batteries.}, journal={SOLID STATE IONICS}, publisher={Elsevier BV}, author={Li, Shuli and Chen, Chen and Fu, Kun and Xue, Leigang and Zhao, Chengxin and Zhang, Shu and Hu, Yi and Zhou, Lan and Zhang, Xiangwu}, year={2014}, month={Jan}, pages={17–26} }
 @article{lu_zhang_li_xue_xu_zhang_2014, title={Preparation and characterization of carbon-coated NaVPO4F as cathode material for rechargeable sodium-ion batteries}, volume={247}, ISSN={["1873-2755"]}, url={https://publons.com/publon/7178355/}, DOI={10.1016/j.jpowsour.2013.09.018}, abstractNote={Sodium vanadium fluorophosphate (NaVPO4F), a material candidate for sodium-ion battery cathodes, was synthesized via a high-temperature solid-state reaction approach. Different amounts of carbon coating were introduced in NaVPO4F to improve its electrochemical performance. The structure and morphology of the resultant cathode materials were examined by scanning electron microscopy and X-ray diffraction. The effects of carbon coating on the electrochemical performance were evaluated by cyclic voltammetry, charge–discharge curve, cycling performance and electrochemical impedance spectroscopy. The highest capacity achieved for this material was 97.8 mAh g−1 and the best capacity retention was 89% at the 20th cycle. Results demonstrated that appropriate amount of carbon coating could effectively improve the electrochemical performance of NaVPO4F, and carbon-coated NaVPO4F could offer promising future for sodium-ion battery cathode materials.}, journal={JOURNAL OF POWER SOURCES}, author={Lu, Yao and Zhang, Shu and Li, Ying and Xue, Leigang and Xu, Guanjie and Zhang, Xiangwu}, year={2014}, month={Feb}, pages={770–777} }
 @article{xia_wang_zhou_niu_xue_zhang_wei_2014, title={The effects of electrospinning parameters on coaxial Sn/C nanofibers: Morphology and lithium storage performance}, volume={121}, ISSN={["1873-3859"]}, url={https://publons.com/publon/26924683/}, DOI={10.1016/j.electacta.2014.01.004}, abstractNote={For tin-based anode materials that suffer from poor cycling stability due to severe volume changes upon lithiation/delithiation processes, the morphology control method might provide a solution. Today, coaxial core-shell structure has attracted wide attention due to its ability to accommodate the volume changes of tin (core), which is well encapsulated in the carbon matrix (shell). Coaxial electrospinning is a simple and effective method to prepare this kind of material. In this work, tin was dispersed in the carbon core and then coated a carbon shell to form Sn@C/C nanofibers by coaxial electrospinning. Flow ratio and tin content were investigated as two main critical factors for controlling the core/shell structure, so as to improve the cycling preference of tin anodes. When tested as a lithium-ion battery anode, the material not only showed higher reversible specific capacity (626 mAh g−1) than pure carbon nanofibers, but also exhibited better cycling performance (50 cycles with 73% capacity retention), indicating that the volume change problem of tin anodes has been well resolved by this morphology control.}, journal={ELECTROCHIMICA ACTA}, publisher={Elsevier BV}, author={Xia, Xin and Wang, Xin and Zhou, Huiming and Niu, Xiao and Xue, Leigang and Zhang, Xiangwu and Wei, Qufu}, year={2014}, month={Mar}, pages={345–351} }
 @article{li_sun_xu_lu_zhang_xue_jur_zhang_2014, title={Tuning electrochemical performance of Si-based anodes for lithium-ion batteries by employing atomic layer deposition alumina coating}, volume={2}, ISSN={["2050-7496"]}, url={https://publons.com/publon/11754001/}, DOI={10.1039/c4ta01562b}, abstractNote={A free-standing, conductive and three-dimensional network of Al2O3-coated Si/C composite nanofibers is fabricated by a single-nozzle electrospinning and atomic layer deposition. The as-obtained Al2O3-coated Si/C composite nanofibers exhibit excellent electrochemical performance for applications as anode materials for lithium-ion batteries.}, number={29}, journal={JOURNAL OF MATERIALS CHEMISTRY A}, publisher={Royal Society of Chemistry (RSC)}, author={Li, Ying and Sun, Yujie and Xu, Guanjie and Lu, Yao and Zhang, Shu and Xue, Leigang and Jur, Jesse S. and Zhang, Xiangwu}, year={2014}, pages={11417–11425} }
 @article{xue_xia_tucker_fu_zhang_li_zhang_2013, title={A simple method to encapsulate SnSb nanoparticles into hollow carbon nanofibers with superior lithium-ion storage capability}, volume={1}, ISSN={["2050-7496"]}, url={https://publons.com/publon/7178344/}, DOI={10.1039/c3ta12921g}, abstractNote={The practical use of high-capacity anodes in lithium-ion batteries generally suffers from significant volume changes upon lithium insertion and extraction. The volume changes induce cracks and loss of inter-particle electronic contact in the electrode, resulting in rapid capacity decay. The use of fiber-like materials to prevent cracks and accommodate volume changes is widely observed in many animal and human activities. Birds mix grass and feathers into mud to build nests, and humans in ancient times blended straw with mud to produce adobe bricks for housing construction. In view of this point, this research designed a porous nanofiber structure to resolve the unstable structure problem of anode materials. The three-dimensional network structure composed of nanofibers provides a highly elastic matrix to accommodate the volume changes of high-capacity Sn and Sb particles and pores around the active particles, induced by CO2 evolution, serve as an additional buffer zone for the volume changes. This unique structure prepared by using a new SnSb alloy precursor and a simple electrospinning technique leads to excellent lithium storage performance in terms of energy density, cycling stability, and rate capability.}, number={44}, journal={JOURNAL OF MATERIALS CHEMISTRY A}, author={Xue, Leigang and Xia, Xin and Tucker, Telpriore and Fu, Kun and Zhang, Shu and Li, Shuli and Zhang, Xiangwu}, year={2013}, pages={13807–13813} }
 @article{fu_yildiz_bhanushali_wang_stano_xue_zhang_bradford_2013, title={Aligned Carbon Nanotube-Silicon Sheets: A Novel Nano-architecture for Flexible Lithium Ion Battery Electrodes}, volume={25}, ISSN={["1521-4095"]}, url={https://publons.com/publon/7178364/}, DOI={10.1002/adma.201301920}, abstractNote={Aligned carbon nanotube sheets provide an engineered scaffold for the deposition of a silicon active material for lithium ion battery anodes. The sheets are low-density, allowing uniform deposition of silicon thin films while the alignment allows unconstrained volumetric expansion of the silicon, facilitating stable cycling performance. The flat sheet morphology is desirable for battery construction.}, number={36}, journal={ADVANCED MATERIALS}, publisher={Wiley}, author={Fu, Kun and Yildiz, Ozkan and Bhanushali, Hardik and Wang, Yongxin and Stano, Kelly and Xue, Leigang and Zhang, Xiangwu and Bradford, Philip D.}, year={2013}, month={Sep}, pages={5109–5114} }
 @article{xue_xu_li_li_fu_shi_zhang_2013, title={Carbon-Coated Si Nanoparticles Dispersed in Carbon Nanotube Networks As Anode Material for Lithium-Ion Batteries}, volume={5}, ISSN={["1944-8252"]}, url={https://publons.com/publon/1792840/}, DOI={10.1021/am3027597}, abstractNote={Si has the highest theoretical capacity among all known anode materials, but it suffers from the dramatic volume change upon repeated lithiation and delithiation processes. To overcome the severe volume changes, Si nanoparticles were first coated with a polymer-driven carbon layer, and then dispersed in a CNT network. In this unique structure, the carbon layer can improve electric conductivity and buffer the severe volume change, whereas the tangled CNT network is expected to provide additional mechanical strength to maintain the integrity of electrodes, stabilize the electric conductive network for active Si, and eventually lead to better cycling performance. Electrochemical test result indicates the carbon-coated Si nanoparticles dispersed in CNT networks show capacity retention of 70% after 40 cycles, which is much better than the carbon-coated Si nanoparticles without CNTs.}, number={1}, journal={ACS APPLIED MATERIALS & INTERFACES}, author={Xue, Leigang and Xu, Guanjie and Li, Ying and Li, Shuli and Fu, Kun and Shi, Quan and Zhang, Xiangwu}, year={2013}, month={Jan}, pages={21–25} }
 @inproceedings{li_fu_xue_toprakci_li_zhang_xu_lu_zhang_2013, title={Co3O4/carbon composite nanofibers for use as anode material in advanced lithium-ion batteries}, volume={1140}, url={https://publons.com/publon/7178343/}, DOI={10.1021/bk-2013-1140.ch003}, abstractNote={Co3O4/carbon composite nanofibers were prepared by a combination of electrospinning and carbonization methods using 10 - 30 nm and 30 - 50 nm Co3O4 nanoparticles, respectively, and their potential use as the anode material in rechargeable lithium-ion batteries was investigated. The composite Co3O4/carbon nanofiber electrode containing 30 - 50 nm Co3O4 nanoparticles showed large reversible capacities and good cycleability with charge capacities of 677 and 545 mAh g-1 at the second and twentieth cycles, respectively. In contrast, the composite Co3O4/carbon nanofiber electrode containing 10 - 30 nm Co3O4 nanoparticles showed fast capacity fading during cycling due to severe nanoparticle aggregation. Results suggested that the good electrochemical performance of Co3O4/carbon nanofiber electrode containing 30 - 50 nm Co3O4 nanoparticles was ascribed to the combination of the properties of both Co3O4 nanoparticles (large Li storage capability) and carbon nanofiber matrix (long cycle life), and therefore this electrode material could be potentially used in high-energy rechargeable lithium-ion batteries.}, booktitle={Nanotechnology for sustainable energy}, author={Li, S. L. and Fu, K. and Xue, L. G. and Toprakci, O. and Li, Y. and Zhang, S. and Xu, G. J. and Lu, Y. and Zhang, Xiangwu}, year={2013}, pages={55–66} }
 @article{fu_xue_yildiz_li_lee_li_xu_zhou_bradford_zhang_et al._2013, title={Effect of CVD carbon coatings on Si@CNF composite as anode for lithium-ion batteries}, volume={2}, ISSN={["2211-3282"]}, url={https://publons.com/publon/7178363/}, DOI={10.1016/j.nanoen.2013.03.019}, abstractNote={Lithium-ion battery (LIB) anodes with high capacity and binder free structure were synthesized from carbon nanofibers that contained silicon nanoparticles (Si@CNF). The particle filled nonwoven structures were produced by an electrospinning and subsequent carbonization process. Pristine Si@CNF composites had Si nanoparticles exposed on the fiber surface. As produced, the Si nanoparticles could become detached from the nanofiber surface during cycling, causing severe structural damage and capacity loss. In order to prevent Si from detaching from the nanofiber surface, the Si@CNF composite was then treated with a thermal chemical vapor deposition (CVD) technique to make Si completely coated with a carbon matrix. The carbon coated Si@CNF (Si@CNF-C) composites were synthesized with different Si contents (10, 30, and 50 wt%) for different CVD treatment times (30, 60, and 90 min). It was found that the initial coulombic efficiency of Si@CNF-C could be increased via the amorphous carbon by stabilizing solid-electrolyte-interface (SEI) formation on surface. The capacity and cyclic stability were improved by the CVD carbon coating, especially for the 30 wt% Si@CNF-C composite with 90 min CVD coating, a CVD amorphous carbon coating of less than 1% by weight on Si@CNF composites contributed to more than 200% improvement in cycling performance. Results indicate that the CVD carbon coating is an effective approach to improve the electrochemical properties of Si@CNF composites making this a potential route to obtain high-energy density anode materials for LIBs.}, number={5}, journal={NANO ENERGY}, author={Fu, K. and Xue, L. G. and Yildiz, O. and Li, S. L. and Lee, H. and Li, Y. and Xu, G. J. and Zhou, L. and Bradford, P. D. and Zhang, Xiangwu and et al.}, year={2013}, month={Sep}, pages={976–986} }
 @article{li_xu_xue_zhang_yao_lu_toprakci_zhang_2013, title={Enhanced Rate Capability by Employing Carbon Nanotube-Loaded Electrospun Si/C Composite Nanofibers As Binder-Free Anodes}, volume={160}, ISSN={["1945-7111"]}, url={https://publons.com/publon/674380/}, DOI={10.1149/2.031304jes}, abstractNote={Si/C and Si/carbon nanotube (CNT)/C composite nanofibers were prepared by electrospinning and carbonization. The carbon nanofiber matrix can accommodate the volume change of Si nanoparticles and provide continuous pathways for efficient charge transport along the fiber axis. CNTs can improve the electronic conductivity and electrochemical performance of the composite nanofiber anodes. Results showed that many different types of connections between CNTs, Si nanoparticles and carbon matrix were formed. At a high current density of 300 mA g−1, after 30 cycles, the capacity of Si/CNT/C composite nanofiber anode was 44.3% higher than the anode without CNT and the C-rate performance of Si/CNT/C composite nanofiber anode was also superior to that of Si/C anode. It is, therefore, demonstrated that Si/CNT/C nanofibers are promising anode material with large capacities, good cycling stability, and good rate capability.}, number={3}, journal={JOURNAL OF THE ELECTROCHEMICAL SOCIETY}, author={Li, Ying and Xu, Guanjie and Xue, Leigang and Zhang, Shu and Yao, Yingfang and Lu, Yao and Toprakci, Ozan and Zhang, Xiangwu}, year={2013}, pages={A528–A534} }
 @article{li_xue_fu_xia_zhao_zhang_2013, title={High-performance Sn/Carbon Composite Anodes Derived from Sn(II) Acetate/Polyacrylonitrile Precursors by Electrospinning Technology}, volume={17}, ISSN={["1385-2728"]}, url={https://publons.com/publon/7178342/}, DOI={10.2174/1385272811317130011}, abstractNote={Sn/carbon composite nanofibers with various compositions were prepared from Sn(II) acetate/polyacrylonitrile (PAN) precursors by a combination of electrospinning and carbonization methods, and their potential use as anode materials for rechargeable lithiumion batteries was investigated. The composite electrode derived from 20 wt% Sn(II) acetate/PAN precursor showed excellent electrochemical properties, including a large reversible capacity of 699 mAh g-1 and a high capacity retention of 83% in 50 cycles. Sn/carbon composite nanofibers exhibited enhanced electrochemical performance ascribing to the combination of the properties of both Sn nanoparticles (large Li storage capability) and carbon matrices (long cycle life), and therefore could be potentially used in high-energy rechargeable lithium-ion batteries.}, number={13}, journal={CURRENT ORGANIC CHEMISTRY}, author={Li, Shuli and Xue, Leigang and Fu, Kun and Xia, Xin and Zhao, Chengxin and Zhang, Xiangwu}, year={2013}, month={Jul}, pages={1448–1454} }
 @article{li_xu_yao_xue_zhang_lu_toprakci_zhang_2013, title={Improvement of cyclability of silicon-containing carbon nanofiber anodes for lithium-ion batteries by employing succinic anhydride as an electrolyte additive}, volume={17}, ISSN={["1433-0768"]}, url={https://publons.com/publon/674383/}, DOI={10.1007/s10008-013-2005-7}, number={5}, journal={JOURNAL OF SOLID STATE ELECTROCHEMISTRY}, author={Li, Ying and Xu, Guanjie and Yao, Yingfang and Xue, Leigang and Zhang, Shu and Lu, Yao and Toprakci, Ozan and Zhang, Xiangwu}, year={2013}, month={May}, pages={1393–1399} }
 @article{fu_xue_yildiz_li_lee_li_xu_zhou_bradford_zhang_et al._2013, title={Si/C composite nanofibers with stable electric conductive network for use as durable lithium-ion battery anode}, volume={2}, ISSN={["2211-3282"]}, url={https://publons.com/publon/674385/}, DOI={10.1016/j.nanoen.2012.11.001}, abstractNote={High-energy anode materials have attracted significant attention because of their potential applications in large-scale energy storage devices. However, they often suffer from rapid capacity fading due to the pulverization of the electrode and the breakdown of electric conductive network caused by the large volume changes of active material upon repeated lithium insertion and extraction. In this work, a new electrode composed of Si/C composite nanofibers was prepared, aiming at the improvement of cycling performance of Si anodes through the establishment of a stable electric conductive network for Si during cycling. By electrospinning, a three-dimensional network of carbon nanofibers, which possesses good elasticity to maintain the structure integrity and stable electric conductive network, is formed; by carbon coating, all Si nanoparticles are tightly bonded with carbon fibers to form a stable electric conductive pathway for electrode reactions. The nanofiber structure and the carbon coating on Si, combined with the binder, lead to a stable network structure that can accommodate the huge volume change of Si during the repeated volume expansion and contraction, thus resulting in excellent cycling performance.}, number={3}, journal={NANO ENERGY}, publisher={Elsevier BV}, author={Fu, Kun and Xue, Leigang and Yildiz, Ozkan and Li, Shuli and Lee, Hun and Li, Ying and Xu, Guanjie and Zhou, Lan and Bradford, Philip D. and Zhang, Xiangwu and et al.}, year={2013}, month={May}, pages={361–367} }
 @article{toprakci_toprakci_li_ji_xue_lee_zhang_zhang_2013, title={Synthesis and characterization of xLi(2)MnO(3) center dot (1-x)LiMn1/3Ni1/3Co1/3O2 composite cathode materials for rechargeable lithium-ion batteries}, volume={241}, ISSN={["0378-7753"]}, url={https://publons.com/publon/674386/}, DOI={10.1016/j.jpowsour.2013.04.155}, abstractNote={Various xLi2MnO3·(1 − x)LiCo1/3Ni1/3Mn1/3O2 (x = 0.1, 0.2, 0.3, 0.4, and 0.5) cathode materials were prepared by the one-step sol–gel route. The structure of xLi2MnO3·(1 − x)LiCo1/3Ni1/3Mn1/3O2 composites was determined by X-ray diffraction analysis. The surface morphology and microstructure of xLi2MnO3·(1 − x)LiCo1/3Ni1/3Mn1/3O2 composites were characterized using scanning electron microscopy and transmission electron microscopy. Electrochemical performance of xLi2MnO3·(1 − x)LiCo1/3Ni1/3Mn1/3O2 composites was evaluated in terms of capacity, cycling performance and rate capability. Although the morphology and structure were found to be affected by the Li2MnO3 content, all composites showed an α-NaFeO2 structure with R3m space group. Electrochemical results showed that cells using 0.3Li2MnO3·0.7LiCo1/3Ni1/3Mn1/3O2 composites had good performance, in terms of large reversible capacity, prolonged cycling stability, and excellent rate capability.}, journal={JOURNAL OF POWER SOURCES}, publisher={Elsevier BV}, author={Toprakci, Ozan and Toprakci, Hatice A. K. and Li, Ying and Ji, Liwen and Xue, Leigang and Lee, Hun and Zhang, Shu and Zhang, Xiangwu}, year={2013}, month={Nov}, pages={522–528} }
 @article{xue_zhang_li_lu_toprakci_xia_chen_hu_zhang_2013, title={Synthesis and properties of Li2MnO3-based cathode materials for lithium-ion batteries}, volume={577}, ISSN={["1873-4669"]}, url={https://publons.com/publon/674387/}, DOI={10.1016/j.jallcom.2013.07.029}, abstractNote={Lithium-ion batteries have been wildly used in various portable electronic devices and the application targets are currently moving from small-sized mobile devices to large-scale electric vehicles and grid energy storage. Therefore, lithium-ion batteries with higher energy densities are in urgent need. For high-energy cathodes, Li2MnO3–LiMO2 layered–layered (M = Mn, Co, Ni) materials are of significant interest due to their high specific capacities over wide operating potential windows. Here, three Li2MnO3-based cathode materials with α-NaFeO2 structure were prepared by a facile co-precipitation method and subsequent heat treatment. Among these three materials, 0.3Li2MnO3·0.5LiMn0.5Ni0.5O2·0.2LiCoO2 shows the best lithium storage capability. This cathode material is composed of uniform nanosized particles with diameters ranging from 100 to 200 nm, and it could be charged to a high cutoff potential to extract more lithium, resulting in a high capacity of 178 mAh g−1 between 2.0 and 4.6 V with almost no capacity loss over 100 cycles.}, journal={JOURNAL OF ALLOYS AND COMPOUNDS}, author={Xue, Leigang and Zhang, Shu and Li, Shuli and Lu, Yao and Toprakci, Ozan and Xia, Xin and Chen, Chen and Hu, Yi and Zhang, Xiangwu}, year={2013}, month={Nov}, pages={560–563} }