石墨烯/多孔纳米硅负极的电化学性能

doi:10.13208/j.electrochem.150612

电化学（中英文） ›› 2015, Vol. 21 ›› Issue (6): 572-576. doi: 10.13208/j.electrochem.150612

石墨烯/多孔纳米硅负极的电化学性能

李纯莉¹，杨广¹，张平¹，江志裕²*

1. 上海空间电源研究所，上海 200245；2. 复旦大学化学系，上海 200433

收稿日期:2015-06-12 修回日期:2015-08-25 出版日期:2015-12-23 发布日期:2015-09-16
通讯作者: 江志裕 E-mail:zyjiang@fudan.ac.cn

Electrochemical Properties of Graphene/Porous Nano-Silicon Anode

LI Chun-li¹, YANG Guang¹, ZHANG Ping¹, JIANG Zhi-yu²*

1. Shanghai Institute of Space Power Sources, Shanghai 200245, China; 2. Department of Chemistry, Fudan University, Shanghai 200433, China

Received:2015-06-12 Revised:2015-08-25 Published:2015-12-23 Online:2015-09-16
Contact: JIANG Zhi-yu E-mail:zyjiang@fudan.ac.cn

摘要/Abstract

摘要：

采用酸浸蚀Al-Si合金的方法制备了多孔纳米Si，并用其制作以石墨烯为导电材料的石墨烯/多孔纳米Si负极. SEM和TEM的分析表明两者混合均匀. 作为锂离子电池的负极，该电极在1 mol•L^-1 LiPF₆/EC(碳酸乙烯酯):DMC(碳酸二甲酯) = 1:1(by volume) + 1.5%(by mass)VC(碳酸亚乙烯酯)溶液中、0.5 A•g^-1电流密度下，第120周循环的放电比容量为1842.6 mAh•g^-1，充放电效率为98.6%. 石墨烯的加入不仅提高了电极的导电性，而且减缓了充放电过程中电极多孔纳米结构的衰变.

关键词: 锂离子电池, 多孔硅, 石墨烯

Abstract:

Porous nano-silicon (Si) was prepared by acid etching Al-Si alloy powder method, and used as an active material for fabricating a grapene/porous nano-Si electrode. The results of SEM and TEM measurements indicated that porous nano-Si powder was uniformly mixed with graphene by emulsification dispersion-ultrasonication method. As an anode for lithium ion battery, the graphene/porous nano-Si electrode presented relatively high performance in 1 mol•L^-1 LiPF6/EC:DMC = 1:1(by volume) + 1.5% (by mass) VC solution. At the charge and discharge current densities of 0.5A•g^-1, the first discharge capacity was 1768.6 mAh•g^-1 with coulombic efficiency of 68.3%. The discharge capacity increased in the initial several cycles, and then decayed gradually after 7 cycles. Finally, the discharge capacity was 1842.6 mAh•g^-1 with coulombic efficiency of 98.6% after 120th cycles. The excellent cycle property could be attributed to the improvement of electronic conductivity and structural stability of graphene/porous nano-Si material.

Key words: lithium ion battery, porous Si, graphene

中图分类号:

O646

李纯莉，杨广，张平，江志裕. 石墨烯/多孔纳米硅负极的电化学性能[J]. 电化学（中英文）, 2015, 21(6): 572-576.

LI Chun-li, YANG Guang, ZHANG Ping, JIANG Zhi-yu. Electrochemical Properties of Graphene/Porous Nano-Silicon Anode[J]. Journal of Electrochemistry, 2015, 21(6): 572-576.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.150612

https://electrochem.xmu.edu.cn/CN/Y2015/V21/I6/572

参考文献

[1] Baek S H, Park J S, Bae E J, et al. Influence of the crystallographic orientation of silicon nanowires in a carbon matrix on electrochemical performance as negative electrode materials for lithium-ion batteries[J]. Journal of Power Sources, 2013, 24(4): 515 -520.

[2] Zhu J, Gladden C, Liu N, Cui Y, et al. Nanoporous silicon networks as anodes for lithium ion batteries[J]. Physical Chemistry Chemical Physics, 2012, 15(2): 440-443.

[3] Wen Z S, Yang J, Wang B F, et al. High capacity silicon/carbon composite anode materials for lithium ion batteries[J]. Electrochemistry Communications, 2003, 5(2): 165-168.

[4] Guo J, Sun A, Chen X, et al. Cyclability study of silicon–carbon composite anodes for lithium-ion batteries using electrochemical impedance spectroscopy[J]. Electrochimica Acta, 2011, 56(11): 3981-3987.

[5] Geim A K, Novoselov K S. The rise of graphene[J]. Nature materials, 2007, 6(3): 183-191.

[6] Castro N A H, Guinea F, Peres N M R, et al. The electronic properties of graphene[J]. Reviews of Modern Physics, 2009, 81(1): 109-162.

[7] Chou S L, Wang J Z, Choucair M, et al. Enhanced reversible lithium storage in a nanosize silicon/graphene composite[J]. Electrochemistry Communications, 2010, 12(2): 303-306.

[8] Zhao X, Hayner C M, Kung M C, et al. In-plane vacancy-enabled high-power Si-graphene composite electrode for lithium-ion batteries[J]. Advanced Energy Materials, 2011, 1(6): 1079-1084.

[9] Hao S J(郝世吉), Li C L(李纯莉), Zhu K(朱凯), et al. The Preparation of high performance porous silicon powder by use of etching Al-Si alloy with acid solution for lithium ion battery[J]. Journal of Electrochemistry(电化学), 2014, 20(1): 1-6.

[10] Jiang Z Y, Li C L, Hao S J, et al. An easy way for preparing high performance porous silicon powder by etching Al-Si alloy powder for lithium ion battery[J]. Electrochimica Acta, 2014, 115: 393-398.

[11] Li C L, Zhang P, Jiang Z Y. Effect of nano Cu coating on porous Si prepared by acid etching Al-Si alloy powder[J]. Electrochimica Acta, 2015, 161: 408-442.

[12] Wu Z S, Ren W, Xu L, et al. Doped graphene sheets as anode materials with super high rate and large capacity for lithium ion batteries[J]. ACS nano, 2011, 5(7): 5463-5471.

[13] Tang Z Y(唐致远), He Y B(贺艳兵), Song Q S(宋全生), et al. Synergistic functions of trimethl phosphate and vinylene carbonate as additives for the Li ion batteries[J]. Journal of Electrochemistry(电化学), 2006, 12(4): 388-392.

[1]	左东旭, 李培超. 基于电化学-热-力耦合模型的快速充电下锂离子电池的老化特性分析[J]. 电化学（中英文）, 2024, 30(9): 2402061-.
[2]	陈露露, 李浩冉, 刘维祎, 王伟. 锂离子电池正极材料原位漫反射光谱电化学研究[J]. 电化学（中英文）, 2024, 30(6): 2314006-.
[3]	崔苗苗, 韩联欢, 曾兰平, 郭佳瑶, 宋维英, 刘川, 吴元菲, 罗世翊, 刘云华, 詹东平. 单层石墨烯微米尺度图案化和功能化：调控电子传输特性[J]. 电化学（中英文）, 2024, 30(3): 2305251-.
[4]	赵刚, 龚正良, 李益孝, 杨勇. 氧化钨和磷钨酸对LiNi_0.96Co_0.02Mn_0.02O₂材料的表面包覆改性研究[J]. 电化学（中英文）, 2023, 29(10): 2204281-.
[5]	陈思, 郑淞生, 郑雷铭, 张叶涵, 王兆林. 水热法制备锂电池Si@C负极材料的工艺优化研究[J]. 电化学（中英文）, 2022, 28(8): 2112221-.
[6]	王京玥, 王睿, 王诗琦, 王立帆, 詹纯. 一步固相法合成锂离子电池高镍层状正极材料[J]. 电化学（中英文）, 2022, 28(8): 2112131-.
[7]	谯渭川, 李芳儒, 肖瑾林, 屈丽娟, 赵晓, 张梦, 庞春雷, 李子坤, 任建国, 贺雪琴. 硅氧材料的膨胀性能研究和改善[J]. 电化学（中英文）, 2022, 28(5): 2108121-.
[8]	王加义, 郭胜楠, 王新, 谷林, 苏东. 锂离子电池高镍层状氧化物正极结构失效机制[J]. 电化学（中英文）, 2022, 28(2): 2108431-.
[9]	郭瑞琪, 吴锋, 王欣然, 白莹, 吴川. 多电子反应材料推动高能量密度电池发展：材料与体系创新[J]. 电化学（中英文）, 2022, 28(12): 2219011-.
[10]	朱振威, 邱景义, 王莉, 曹高萍, 何向明, 王京, 张浩. 人工智能在锂离子电池研发中的应用[J]. 电化学（中英文）, 2022, 28(12): 2219003-.
[11]	侯廷政, 陈翔, 蒋璐, 唐城. 当前和下一代锂离子电池电解液的原子尺度微观认识和研究进展[J]. 电化学（中英文）, 2022, 28(11): 2219007-.
[12]	李丹丹, 纪翔宇, 陈明, 杨燕茹, 王晓东, 冯光. 低聚离子液体的体相与界面及其电化学储能应用[J]. 电化学（中英文）, 2022, 28(11): 2219002-.
[13]	骆晨旭, 师晨光, 余志远, 黄令, 孙世刚. 富锂锰基层状正极材料的合成及其首周过充下的结构演化[J]. 电化学（中英文）, 2022, 28(1): 2006131-.
[14]	蔡雪凡, 孙升. 多孔电极电池的循环伏安法模拟[J]. 电化学（中英文）, 2021, 27(6): 646-657.
[15]	彭依, 张伟, 左防震, 吕浩莹, 洪凯骏. 二硒化钼纳米球储锂和储镁的性能和机理研究[J]. 电化学（中英文）, 2021, 27(4): 456-464.

石墨烯/多孔纳米硅负极的电化学性能

Electrochemical Properties of Graphene/Porous Nano-Silicon Anode

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics