3D-porous beta-LiVOPO4/C microspheres as a cathode material with enhanced performance for Li-ion batteries

Shen Chao; Zhang Bao; Zhang Jia-feng; Zheng Jun-chao; Han Ya-dong; Li Hui

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3D-porous beta-LiVOPO4/C microspheres as a cathode material with enhanced performance for Li-ion batteries

机译：3D多孔β-LiVOPO4 / C微球作为阴极材料，具有增强的锂离子电池性能

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3D porous beta-LiVOPO4/C microspheres were synthesized through a solvothermal method followed by a post-heat treatment. TG-DSC and FTIR results illustrate crystal structure transformation from alpha ->beta-LiVOPO4. XRD results reveal pristine and synthesized powders that were crystallized in the triclinic alpha-LiVOPO4 and orthorhombic beta-LiVOPO4 phase, respectively. Scanning electron microscopy (SEM) and pore distribution results reveal that beta-LiVOPO4/C spheres were built from small nanoplates and pores with a wide diameter distribution. HRTEM results indicate encapsulation of beta-LiVOPO4/C particles with amorphous carbon shells. A porous beta-LiVOPO4/C cathode delivered 134 mA h g(-1) and 74 mA h g(-1) nitial discharge capacities at 0.1 C and 1 C, respectively. The cell presented superior capacity retention attributed to the contributions of surface coating, high specific surface area, and porous architecture that serve as facile electrical conduits for ion/electron transport.

机译：通过溶剂热法合成3D多孔β-LiVoPO4 / C微球，然后通过后热处理合成。 TG-DSC和FTIR结果说明了α->β-livopo4的晶体结构变换。 XRD结果揭示了在三态α-livopo4和正交β-livopo4相中结晶的原始和合成粉末。扫描电子显微镜（SEM）和孔隙分布结果表明，β-livopo4 / c球体由小纳米板和孔构成，具有宽直径分布。 HRTEM结果表明用无定形碳壳的β-livopo4 / c颗粒的包封。多孔β-LiVoPO4 / C阴极在0.1c和1c分别递送134mA h g（-1）和74mA H g（-1）态放电能力。该电池呈现出归因于表面涂层，高比表面积和多孔架构的贡献的优异的容量保持，其用作用于离子/电子传输的容易电气管道的贡献。

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《RSC Advances》 |2015年第10期|共7页
作者
Shen Chao; Zhang Bao; Zhang Jia-feng; Zheng Jun-chao; Han Ya-dong; Li Hui;
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Cent S Univ Sch Met &

Environm Changsha 410083 Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Peoples R China;

Cent S Univ Sch Met &

Environm Changsha 410083 Peoples R China;

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正文语种 eng
中图分类化学;
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1. 3D-porous beta-LiVOPO4/C microspheres as a cathode material with enhanced performance for Li-ion batteries [J] . Shen Chao, Zhang Bao, Zhang Jia-feng, RSC Advances . 2015,第10期

机译：3D多孔β-LiVOPO4 / C微球作为阴极材料，具有增强的锂离子电池性能
2. Hierarchical LiFePO _4/C microspheres with high tap density assembled by nanosheets as cathode materials for high-performance Li-ion batteries [J] . Wei W., Chen D., Wang R., Nanotechnology . 2012,第47期

机译：纳米片组装的高抽头密度分层LiFePO _4 / C微球作为高性能锂离子电池的阴极材料
3. Multi-Walled Carbon Nanotubes Modified Li₃V₂(PO₄)₃/Carbon Composites with Enhanced Electrochemical Performances as Cathode Materials for Li-Ion Batteries [J] . Xiaoyu Cao, Peng Ge, Limin Zhu, International Journal of Electrochemical Science . 2016,第6期

机译：多壁碳纳米管修饰的电化学性能增强的Li _{3 V _{2 （PO _{4 ）_{3 /碳复合材料作为锂离子电池的正极材料}}}}
4. Lithium-Rich Layered MNC Cathode Materials with Enhanced Performance for Li-ion Batteries [C] . K. M. Abraham, Mehmet Nurullah Ates International Battery Seminar and Exhibit . 2015

机译：增强锂离子电池性能的富锂多层MNC阴极材料
5. Enhancing Electrochemical Performance of Electrode Materials for Li-Ion Batteries and Na-Ion Batteries via Thermodynamic Surface/Interface Control [D] . Huang, Jiajia 2017

机译：通过热力学表面/界面控制提高锂离子电池和钠离子电池用电极材料的电化学性能
6. High-performance spinel-rich Li1.5MnTiO4+δ ultralong nanofibers as cathode materials for Li-ion batteries [O] . Ngoc Hung Vu, Paulraj Arunkumar, Won Bin Im -1

机译：高性能尖晶石型Li1.5MnTiO4 +δ超长纳米纤维作为锂离子电池的正极材料
7. Enhanced Electrochemical Performance and Thermal Stability of ZrO2- and rGOZrO2Coated LiNi0.8Co0.1Mn0.1O2 Cathode Material for Li-Ion Batteries [O] . -1

机译：增强的ZrO2和RGOZRO2涂覆的电化学性能和热稳定性，Li-离子电池的Li Ni0.8Co0.1Mn0.1 O 2阴极材料

3D-porous beta-LiVOPO4/C microspheres as a cathode material with enhanced performance for Li-ion batteries

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