Liquid-Phase Electrochemical Scanning Electron Microscopy for In Situ Investigation of Lithium Dendrite Growth and Dissolution

被引：296

作者：

Rong, Genlan ^{[1
,2
]}

Zhang, Xinyi ^{[1
]}

Zhao, Wen

Qiu, Yongcai ^{[1
,2
]}

Liu, Meinan ^{[1
]}

Ye, Fangmin ^{[1
]}

Xu, Yan ^{[1
]}

Chen, Jiafan ^{[1
]}

Hou, Yuan ^{[1
]}

Li, Wanfei ^{[1
]}

Duan, Wenhui ^{[2
]}

Zhang, Yuegang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, I Lab, Suzhou 215123, Jiangsu, Peoples R China

[2] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

来源：

ADVANCED MATERIALS | 2017年 / 29卷 / 13期

基金：

中国国家自然科学基金;

关键词：

SULFUR BATTERIES; ELECTRODEPOSITED LI; ION BATTERIES; METAL ANODES; HIGH-ENERGY; POLYSULFIDE; INTERPHASE; DEPOSITION; CELLS; PERFORMANCE;

D O I：

10.1002/adma.201606187

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

A study was conducted to demonstrate the use of liquid-phase electrochemical scanning electron microscopy (EC-SEM) for in situ investigation of lithium dendrite growth and dissolution. A pair of Cu current collectors and Li electrodes was patterned on the top chip with a microgap lying in the middle of the viewing window. The two chips were sealed by epoxy, with a separation of approximately 0.5 mm. The orifices were also sealed with the same epoxy after the injection of the liquid electrolyte. During in situ electrochemical experiments, the growth and dissolution of lithium dendrites at the edges of the Li/Cu electrodes can be observed through the SiNx window by SEM.

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页数：6

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