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Cited by 305

The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.

From Metal–Organic Framework to Li2S@C–Co–N Nanoporous Architecture: A High-Capacity Cathode for Lithium–Sulfur Batteries

He, Jiarui, Chen, Yuanfu, Lv, Weiqiang, Wen, Kechun, Xu, Chen, Zhang, Wanli, Li, Yanrong, Qin, Wu, He, Weidong·2016·ACS Nano

Abstract

Owing to the high theoretical specific capacity (1166 mAh g –1 ), lithium sulfide (Li 2 S) has been considered as a promising cathode material for Li–S batteries. However, the polysulfide dissolution and low electronic conductivity of Li 2 S limit its further application in next-generation Li–S batteries. In this report, a nanoporous Li 2 S@C–Co–N cathode is synthesized by liquid infiltration–evaporation of ultrafine Li 2 S nanoparticles into graphitic carbon co-doped with cobalt and nitrogen (C–Co–N) derived from metal–organic frameworks. The obtained Li 2 S@C–Co–N architecture remarkably immobilizes Li 2 S within the cathode structure through physical and chemical molecular interactions. Owing to the synergistic interactions between C–Co–N and Li 2 S nanoparticles, the Li 2 S@C–Co–N composite delivers a reversible capacity of 1155.3 (99.1% of theoretical value) at the initial cycle and 929.6 mAh g –1 after 300 cycles, with nearly 100% Coulombic efficiency and a capacity fading of 0.06% per cycle. It exhibits excellent rate capacities of 950.6, 898.8, and 604.1 mAh g –1 at 1C, 2C, and 4C, respectively. Such a cathode structure is promising for practical applications in high-performance Li–S batteries.

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Metadata

Authors
He, J., Chen, Y., Lv, W., Wen, K., Xu, C., Zhang, W., Li, Y., Qin, W., & He, W.
Venue
ACS Nano
Published
2016-12-08
Volume
10
Issue
12
Pages
10981-10987
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W2560814032
Cited by
305
References
43
FWCI
22.87
Type
journal article
Language
en
Open access
closed

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