Pie-like electrode design for high-energy density lithium-sulfur batteries

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Original languageEnglish
Article number8850
Journal / PublicationNature Communications
Volume6
Publication statusPublished - 26 Nov 2015
Externally publishedYes

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Abstract

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-2) delivers high specific capacity of 1,314 mAh g â '1 (4.7 mAh cm-2) at 0.1 C (0.6 mA cm-2) accompanied with good cycling stability. Moreover, the areal capacity can be further boosted to more than 8 mAh cm-2 by stacking three layers of paper electrodes with S mass loading of 10.8 mg cm-2. © 2015 Macmillan Publishers Limited. All rights reserved.

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Citation Format(s)

Pie-like electrode design for high-energy density lithium-sulfur batteries. / Li, Zhen; Zhang, Jin Tao; Chen, Yu Ming et al.
In: Nature Communications, Vol. 6, 8850, 26.11.2015.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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