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Strong Capillarity, Chemisorption, and Electrocatalytic Capability of Crisscrossed Nanostraws Enabled Flexible, High-Rate, and Long-Cycling Lithium-Sulfur Batteries.

Publication ,  Journal Article
Ma, L; Zhang, W; Wang, L; Hu, Y; Zhu, G; Wang, Y; Chen, R; Chen, T; Tie, Z; Liu, J; Jin, Z
Published in: ACS nano
May 2018

The development of flexible lithium-sulfur (Li-S) batteries with high energy density and long cycling life are very appealing for the emerging flexible, portable, and wearable electronics. However, the progress on flexible Li-S batteries was limited by the poor flexibility and serious performance decay of existing sulfur composite cathodes. Herein, we report a freestanding and highly flexible sulfur host that can simultaneously meet the flexibility, stability, and capacity requirements of flexible Li-S batteries. The host consists of a crisscrossed network of carbon nanotubes reinforced CoS nanostraws (CNTs/CoS-NSs). The CNTs/CoS-NSs with large inner space and high conductivity enable high loading and efficient utilization of sulfur. The strong capillarity effect and chemisorption of CNTs/CoS-NSs to sulfur species were verified, which can efficiently suppress the shuttle effect and promote the redox kinetics of polysulfides. The sulfur-encapsulated CNTs/CoS-NSs (S@CNTs/CoS-NSs) cathode in Li-S batteries exhibits superior performance, including high discharge capacity, rate capability (1045 mAh g-1 at 0.5 C and 573 mAh g-1 at 5.0 C), and cycling stability. Intriguingly, the soft-packed Li-S batteries based on S@CNTs/CoS-NSs cathode show good flexibility and stability upon bending.

Duke Scholars

Published In

ACS nano

DOI

EISSN

1936-086X

ISSN

1936-0851

Publication Date

May 2018

Volume

12

Issue

5

Start / End Page

4868 / 4876

Related Subject Headings

  • Nanoscience & Nanotechnology
 

Citation

APA
Chicago
ICMJE
MLA
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Ma, L., Zhang, W., Wang, L., Hu, Y., Zhu, G., Wang, Y., … Jin, Z. (2018). Strong Capillarity, Chemisorption, and Electrocatalytic Capability of Crisscrossed Nanostraws Enabled Flexible, High-Rate, and Long-Cycling Lithium-Sulfur Batteries. ACS Nano, 12(5), 4868–4876. https://doi.org/10.1021/acsnano.8b01763
Ma, Lianbo, Wenjun Zhang, Lei Wang, Yi Hu, Guoyin Zhu, Yanrong Wang, Renpeng Chen, et al. “Strong Capillarity, Chemisorption, and Electrocatalytic Capability of Crisscrossed Nanostraws Enabled Flexible, High-Rate, and Long-Cycling Lithium-Sulfur Batteries.ACS Nano 12, no. 5 (May 2018): 4868–76. https://doi.org/10.1021/acsnano.8b01763.
Ma, Lianbo, et al. “Strong Capillarity, Chemisorption, and Electrocatalytic Capability of Crisscrossed Nanostraws Enabled Flexible, High-Rate, and Long-Cycling Lithium-Sulfur Batteries.ACS Nano, vol. 12, no. 5, May 2018, pp. 4868–76. Epmc, doi:10.1021/acsnano.8b01763.
Ma L, Zhang W, Wang L, Hu Y, Zhu G, Wang Y, Chen R, Chen T, Tie Z, Liu J, Jin Z. Strong Capillarity, Chemisorption, and Electrocatalytic Capability of Crisscrossed Nanostraws Enabled Flexible, High-Rate, and Long-Cycling Lithium-Sulfur Batteries. ACS nano. 2018 May;12(5):4868–4876.
Journal cover image

Published In

ACS nano

DOI

EISSN

1936-086X

ISSN

1936-0851

Publication Date

May 2018

Volume

12

Issue

5

Start / End Page

4868 / 4876

Related Subject Headings

  • Nanoscience & Nanotechnology