覆银硅微通道板用于三维锂离子电池负极研究

华东师范大学学报(自然科学版) ›› 2013, Vol. 2013 ›› Issue (5): 110-118, 129.

覆银硅微通道板用于三维锂离子电池负极研究

王斐，徐少辉，祝珊珊，楼薛锋，惠珂霜，杨平雄，王连卫

华东师范大学电子工程系，极化材料与器件教育部重点实验室，上海 200241

收稿日期:2012-11-01 修回日期:2013-02-01 出版日期:2013-09-25 发布日期:2013-09-30

Silver-coated silicon microchannel plates for three-dimensional lithium-ion batteries anodes

WANG Fei, XU Shao-hui, ZHU Shan-shan, LOU Xue-feng, HUI Ke-shuang,YANG Ping-xiong, WANG Lian-wei

Laboratory of Polar Materials and Devices, Ministry of Education, and Department of Electronic Engineering,East China Normal University, Shanghai 200241, China

Received:2012-11-01 Revised:2013-02-01 Online:2013-09-25 Published:2013-09-30

摘要/Abstract

摘要： 采用光辅助电化学刻蚀和无电镀银方法,制备出一种可用于三维锂离子电池的覆银硅微通道板（Ag/Si-MCP）负极结构. 利用XRD和扫描电镜（SEM）对材料特性进行表征；并在氩气氛保护下以锂片为对电极封装为CR2025半电池,采用恒流充放电测试、循环伏安法（CV）及交流阻抗法（EIS），对银覆盖层对电极性能的影响进行了细致的分析. 在0.02 V～1.5 V电位（vs. Li+/Li）范围内以10 mA·g^-1电流密度进行恒流充放电测试. 样品在首次充电（硅的锂合金化）过程中获得高达3 484.7 mAh·g^-1的比容量值，且在首次充放电循环中库仑效率达到95.97%. 并在随后的循环中，表现出优于未经覆银处理的硅微通道电极的性能.

关键词: 硅微通道板, 锂离子电池, 三维微电池, 负极

Abstract: In this work, a three-dimensional (3-D) anode using a silver-coated Si microchannel plate (Si-MCP) as the active materials was prepared by photo-assisted electrochemical etching followed by electroless deposition. Using lithium foils as the counter electrodes, representative half-cells are fabricated and tested. In galvanostatic charge-discharge (C-D) measurements at 10 mA·g^-1between 0.02 and 1.5 V, our anode exhibits a charge capacity of 3484.7 mAh·g^-1 with a coulombic efficiency close to 95.97% in the initial cycle. Based on the cyclicvoltammetry (CV) and the electrochemical impedance spectroscopy (EIS) data, the mechanism about the lithiation of Ag-coated Si-MCP was also studied.

Key words: silicon microchannel plate, lithium-ion batteries, three-dimensional microbatteries, anode

中图分类号:

O649.4

王斐，徐少辉，祝珊珊，楼薛锋，惠珂霜，杨平雄，王连卫. 覆银硅微通道板用于三维锂离子电池负极研究[J]. 华东师范大学学报(自然科学版), 2013, 2013(5): 110-118, 129.

WANG Fei, XU Shao-hui, ZHU Shan-shan, LOU Xue-feng, HUI Ke-shuang,YANG Ping-xiong, WANG Lian-wei. Silver-coated silicon microchannel plates for three-dimensional lithium-ion batteries anodes[J]. Journal of East China Normal University(Natural Sc, 2013, 2013(5): 110-118, 129.

参考文献

［1］ VALVO M, LAFONT U, MUNAO D,et al. Electrospraying-assisted synthesis of tin nanoparticles for Li-ion battery electrodes［J］.Journal of Power Sources,2009,189： 297-302.

［2］ SHARMA R A, SEEFURTH R N. Thermodynamic properties of the lithium-silicon system［J］.Journal of the Electrochemical Society,1976,123：1763.

［3］ BOUKAMP B A, LESH G C, HUGGINS R A. All-solid lithium electrodes with mixed-conductor matrix［J］.Journal of the Electrochemical Society, 1981,128：725.

［4］ ZHAO G Y, MENG Y F, ZHANG N Q, et al. Electrodeposited Si film with excellent stability and high rate performance for lithium-ion battery anodes［J］.Materials Letters, 2012,76：55-58.

［5］ CHEN L B, XIE J Y, YU H C, et al. Si-Al thin film anode material with superior cycle performance and rate capability for lithium ion batteries ［J］.Electrochimica Acta, 2008,53：8149-8153.

［6］ CHAN C K, PENG H L, LIU G, et al. High-performance lithium battery anodes using silicon nanowires［J］.Nature Nanotechnology, 2008,3：31. 

［7］ JIA H P, GAO P F, YANG J, et al. Novel Three-Dimensional Mesoporous Silicon for High Power Lithium-Ion Battery Anode Material［J］.Advanced Energy Materials, 2011, 1-6：1036-1039.

［8］ DU N, FAN X, YU J X, et al. Ni3Si2-Si nanowires on Ni foam as a high-performance anode of Li-ion batteries［J］.Electrochemistry Communications, 2011,13：1443-1446.

［9］ TIAN M, WANG W, WEI Y J, et al. Stable high areal capacity lithium-ion battery anodes based on three-dimensional Ni-Sn nanowire networks［J］.Journal of Power Sources, 2012,211：46.

［10］ WANG J Z, DU N, ZHANG H, et al. Cu-Si1-xGex core shell nanowire arrays as three-dimensional electrodes for high-rate capability lithium-ion batteries［J］.Journal of Power Sources, 2012,208：434.

［11］ XUE L G, FU Z H, YAO Y, et al. Three-dimensional porous Sn-Cu alloy anode for lithium-ion batteries［J］. Electrochimica Acta, 2010,55：7310. 

［12］ WANG C, WANG D L, WANG Q M, et al. Fabrication and lithium storage performance of three-dimensional porous NiO as anode for lithium-ion battery［J］.Journal of Power Sources, 2010,195：7432.

［13］ XUE L J, XU Y F, HUANG L, et al. Lithium storage performance and interfacial processes of three dimensional porous Sn-Co alloy electrodes for lithium-ion batteries［J］.Electrochimica Acta, 2011,56：5979.

［14］ LI X F, DHANABALAN A, GU L, et al. Three-dimensional porous core-shell Sn@carbon composite anodes for high-performance lithium-ion battery applications［J］.Advanced Energy Materials, 2012,2：238.

［15］ SUN X, HUANG H, CHU K, et al. Anodized macroporous silicon anode for integration of lithium-ion batteries on chips［J］.Journal of Electronic Materials, 2012,41：2369.

［16］ GOLDMAN J L, LONG B R, GEWIRTH A A, et al. Strain anisotropies and self-limiting capacities in single-crystalline 3D silicon microstructures： models for high energy density lithium-ion battery anodes［J］.Advanced Functional Materials, 2011,21/23 2412.

［17］ WU X D, WANG Z X, CHEN L Q, et al. Ag-enhanced SEI formation on Si particles for lithium batteries［J］. Electrochemistry Communications, 2003,5: 935-939.

［18］ CHEN X M, LIN J L, YUAN D, et al. Obtaining a high area ratio free-standing silicon microchannel plate via a modified electrochemical［J］.Journal of Micromechanics and Microengineering, 2008,18：037003.

［19］ YUAN D, CI P L, TIAN F, et al. Large-size P-type silicon microchannel plates prepared by photoelectrochemical etching［J］.Journal of Micro/Nanolithography, MEMS, and MOEMS, 2009,8：033012.

［20］姜晓霞，沈伟.化学镀理论及实践［M］.北京：国防工业出版社，2000. 

［21］ KASAVAJJULA U, WANG C, APPLEBY A J. Nano- and bulk-silicon-based insertion anodes for lithium-ion secondary cells［J］.Journal of Power Sources, 2007,163：1003.

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