Pie-like electrode design for high-energy density lithium–sulfur batteries
Author(s)
Zhang, Jin Tao; Chen, Yu Ming; Li, Ju; Lou, Xiong Wen (David); Li, Zhen, M. Eng. Massachusetts Institute of Technology
DownloadLi-2015-Pie-like electrode.pdf (2.538Mb)
OPEN_ACCESS_POLICY
Open Access Policy
Creative Commons Attribution-Noncommercial-Share Alike
Terms of use
Metadata
Show full item recordAbstract
Owing to the overwhelming advantage in energy density, lithium–sulfur (Li–S) battery is a promising next-generation electrochemical energy storage system. Despite many efforts in pursuing long cycle life, relatively little emphasis has been placed on increasing the areal energy density. Herein, we have designed and developed a ‘pie’ structured electrode, which provides an excellent balance between gravimetric and areal energy densities. Combining lotus root-like multichannel carbon nanofibers ‘filling’ and amino-functionalized graphene ‘crust’, the free-standing paper electrode (S mass loading: 3.6 mg cm[superscript −2]) delivers high specific capacity of 1,314 mAh g[superscript −1] (4.7 mAh cm[superscript −2]) at 0.1 C (0.6 mA cm[superscript −2]) accompanied with good cycling stability. Moreover, the areal capacity can be further boosted to more than 8 mAh cm[superscript −2] by stacking three layers of paper electrodes with S mass loading of 10.8 mg cm[superscript −2].
Date issued
2015-11Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering; Massachusetts Institute of Technology. Department of Nuclear Science and EngineeringJournal
Nature Communications
Publisher
Nature Publishing Group
Citation
Li, Zhen, Jin Tao Zhang, Yu Ming Chen, Ju Li, and Xiong Wen (David) Lou. “Pie-Like Electrode Design for High-Energy Density Lithium–sulfur Batteries.” Nat Comms 6 (November 26, 2015): 8850. © 2015 Macmillan Publishers Limited
Version: Final published version
ISSN
2041-1723