Composite lithium metal anode by melt infusion of lithium into a 3D conducting scaffold with lithiophilic coating

被引：782

作者：

Liang, Zheng ^{[1
]}

Lin, Dingchang ^{[1
]}

Zhao, Jie ^{[1
]}

Lu, Zhenda ^{[1
]}

Liu, Yayuan ^{[1
]}

Liu, Chong ^{[1
]}

Lu, Yingying ^{[1
]}

Wang, Haotian ^{[2
]}

Yan, Kai ^{[1
]}

Tao, Xinyong ^{[1
]}

Cui, Yi ^{[1
,3
]}

机构：

[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[2] Stanford Univ, Appl Phys, Stanford, CA 94305 USA

[3] Standford Inst Mat & Energy Sci, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2016年 / 113卷 / 11期

关键词：

Li composite; Li metal anode; melt infusion; 3D scaffold; lithiophilic; ION BATTERY ANODES; LONG CYCLE-LIFE; HOLLOW CARBON; SECONDARY BATTERIES; SULFUR CATHODES; LIQUID; ELECTROLYTES; ALLOY; ELECTRODEPOSITION; NANOSPHERES;

D O I：

10.1073/pnas.1518188113

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Lithium metal-based battery is considered one of the best energy storage systems due to its high theoretical capacity and lowest anode potential of all. However, dendritic growth and virtually relative infinity volume change during long-term cycling often lead to severe safety hazards and catastrophic failure. Here, a stable lithium-scaffold composite electrode is developed by lithium melt infusion into a 3D porous carbon matrix with "lithiophilic" coating. Lithium is uniformly entrapped on the matrix surface and in the 3D structure. The resulting composite electrode possesses a high conductive surface area and excellent structural stability upon galvanostatic cycling. We showed stable cycling of this composite electrode with small Li plating/stripping overpotential (<90 mV) at a high current density of 3 mA/cm(2) over 80 cycles.

引用

页码：2862 / 2867

页数：6

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