Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries

Han, Haisheng; Wang, Tong; Zhang, Yongguang; Nurpeissova, Arailym; Bakenov, Zhumabay

doi:10.3390/nano10112267

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Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries

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School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China

Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, China

Department of Chemical and Materials Engineering, National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan

Author to whom correspondence should be addressed.

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The authors contributed equally to this work.

Nanomaterials 2020, 10(11), 2267; https://doi.org/10.3390/nano10112267

Received: 15 October 2020 / Revised: 6 November 2020 / Accepted: 12 November 2020 / Published: 16 November 2020

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Abstract

A three-dimensionally ordered macroporous ZnO (3DOM ZnO) framework was synthesized by a template method to serve as a sulfur host for lithium–sulfur batteries. The unique 3DOM structure along with an increased active surface area promotes faster and better electrolyte penetration accelerating ion/mass transfer. Moreover, ZnO as a polar metal oxide has a strong adsorption capacity for polysulfides, which makes the 3DOM ZnO framework an ideal immobilization agent and catalyst to inhibit the polysulfides shuttle effect and promote the redox reactions kinetics. As a result of the stated advantages, the S/3DOM ZnO composite delivered a high initial capacity of 1110 mAh g⁻¹ and maintained a capacity of 991 mAh g⁻¹ after 100 cycles at 0.2 C as a cathode in a lithium–sulfur battery. Even at a high C-rate of 3 C, the S/3DOM ZnO composite still provided a high capacity of 651 mAh g⁻¹, as well as a high areal capacity (4.47 mAh cm⁻²) under high loading (5 mg cm⁻²). View Full-Text

Keywords: lithium–sulfur battery; three-dimensionally ordered macroporous ZnO; strong adsorption; fast redox kinetics

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MDPI and ACS Style

Han, H.; Wang, T.; Zhang, Y.; Nurpeissova, A.; Bakenov, Z. Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries. Nanomaterials 2020, 10, 2267. https://doi.org/10.3390/nano10112267

AMA Style

Han H, Wang T, Zhang Y, Nurpeissova A, Bakenov Z. Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries. Nanomaterials. 2020; 10(11):2267. https://doi.org/10.3390/nano10112267

Chicago/Turabian Style

Han, Haisheng, Tong Wang, Yongguang Zhang, Arailym Nurpeissova, and Zhumabay Bakenov. 2020. "Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries" Nanomaterials 10, no. 11: 2267. https://doi.org/10.3390/nano10112267

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Three-Dimensionally Ordered Macroporous ZnO Framework as Dual-Functional Sulfur Host for High-Efficiency Lithium–Sulfur Batteries

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