High-power lithium ion microbatteries from interdigitated three-dimensional bicontinuous nanoporous electrodes

被引：530
|
作者：
Pikul, James H. [1 ]
Zhang, Hui Gang [2 ]
Cho, Jiung [2 ]
Braun, Paul V. [1 ,2 ,3 ,4 ]
King, William P. [1 ,2 ,3 ,4 ]
机构：
[1] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA
[3] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA
[4] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA
来源：
NATURE COMMUNICATIONS | 2013年 / 4卷
关键词：
BATTERY ARCHITECTURES; CARBON; SUPERCAPACITORS; FABRICATION; GRAPHENE;
D O I：
10.1038/ncomms2747
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：
High-performance miniature power sources could enable new microelectronic systems. Here we report lithium ion microbatteries having power densities up to 7.4 mW cm(-2) mu m(-1), which equals or exceeds that of the best supercapacitors, and which is 2,000 times higher than that of other microbatteries. Our key insight is that the battery microarchitecture can concurrently optimize ion and electron transport for high-power delivery, realized here as a three-dimensional bicontinuous interdigitated microelectrodes. The battery microarchitecture affords trade-offs between power and energy density that result in a high-performance power source, and which is scalable to larger areas.
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页数：5
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