Page 61 - 精细化工2020年第2期

第 2 期 王 珏，等: 石墨烯/SnO 2 /Si@PPy 复合材料的制备及电化学性能 ·263·

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图 10 GSSP 负极的 EIS 谱图 anodes for lithium-ion batteries[J]. Journal of Power Sources, 2017,
Fig. 10 EIS spectra of GSSP anode 342: 467-475.
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（1）本文采用微波水热法制备了 GS 复合材料， three-dimensional carbon nanotubes foam with enhanced electrochemical
performance for lithium-ion batteries[J]. Journal of Power Sources,
采用原位氧化聚合法使 PPy 沿 Si 粉表面包覆生长得
2018, 381: 156-163.
到 SP 复合材料，最后通过微波水热组装法制备了 [11] Rao J, Liu N, Li L, et al. A high performance wire-shaped flexible
GSSP 复合材料。 lithium-ion battery based on silicon nanoparticles within polypyrrole/
twisted carbon fibers[J]. RSC Advances, 2017, 7(43): 26601-26607.
（2）GSSP 复合材料具有较大的比表面积以及 [12] Wang Q, Li R, Zhou X, et al. Polythiophene-coated nano-silicon
较好的导电性，作为锂电池电极材料表现出优异的 composite anodes with enhanced performance for lithium-ion
电化学性能。在 100 mA/g 电流密度下，放电和充电 batteries[J]. Journal of Solid State Electrochemistry, 2016, 20(5):
1331-1336.
的平均比容量分别为 948.44 和 869.63 mA·h/g；电流 [13] Liang G, Qin X, Zou J, et al. Electrosprayed silicon-embedded
密度增加到 1000 mA/g 时，放电和充电的比容量保 porous carbon microspheres as lithium-ion battery anodes with
exceptional rate capacities[J]. Carbon, 2018, 127: 424-431.
持率分别为 69.38%和 74.37%；电流密度再次回到 [14] Su H, Barragan A A, Geng L, et al. Colloidal synthesis of silicon-
100 mA/g 时，放电和充电的比容量保持率分别为 carbon composite material for lithium-ion batteries[J]. Angewandte
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84.56%和 89.73%。在 1000 mA/g 电流密度下，充放
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电循环 400 次，放电和充电的比容量保持率分别为 interface layer formation in binder-free carbon nanotube aerogel/Si
90.69%和 89.34%。 nanohybrids to provide lithium-ion battery anodes with a long-cycle
life and high capacity[J]. Nanoscale, 2017, 9(14): 4713-4720.
（3）GSSP 复合材料优异的锂电池性能主要归 [16] Bai X, Yu Y, Kung H H, et al. Si@SiO x/graphene hydrogel composite
因于 GS 与 SP 的协同作用。PPy 对 Si 膨胀的限制作 anode for lithium-ion battery[J]. Journal of Power Sources, 2016,
用，延长了 GSSP 复合材料循环寿命，GS 复合材料 306: 42-48.
[17] Zhang W, Zuo P, Chen C, et al. Facile synthesis of binder-free
较高的导电性能提高了 GSSP 复合材料的倍率性能， reduced graphene oxide/silicon anode for high-performance lithium
因此，GSSP 具有较大的比容量。 ion batteries[J]. Journal of Power Sources, 2016, 312: 216-222.
[18] Zhao T, She S, Ji X, et al. In-situ growth amorphous carbon nanotube
本文制备的 GSSP 复合材料作为一种大容量、
on silicon particles as lithium-ion battery anode materials[J]. Journal
长循环寿命的电极材料具有良好的开发前景，可以 of Alloys and Compounds, 2017, 708: 500-507.
应用于大容量锂离子电池的研制。 [19] Xiao L, Sehlleier Y H, Dobrowolny S, et al. Si-CNT/rGO
nanoheterostructures as high-performance lithium-ion-battery anodes
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