Surface-Phosphided Metal Oxide Microspheres as Catalytic Host of Sulfur to Enhance the Performance of Lithium-Sulfur Batteries

被引：5

作者：

Gao R. ^{[1
]}

Tian L.-Y. ^{[1
]}

Wang T. ^{[1
]}

Li H.-J. ^{[1
]}

Chen P. ^{[1
]}

Yan T.-Y. ^{[1
]}

Gao X.-P. ^{[1
]}

机构：

[1] Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin

来源：

ACS Applied Materials and Interfaces | 2024年 / 16卷 / 17期

关键词：

catalytic hosts; lithium−sulfur batteries; oxide microspheres; sulfur cathode; surface phosphidation;

D O I：

10.1021/acsami.4c02109

中图分类号：

学科分类号：

摘要：

Lithium-sulfur (Li-S) batteries are one of the most promising high-energy density secondary batteries due to their high theoretical energy density of 2600 Wh kg-1. However, the sluggish kinetics and severe “shuttle effect” of polysulfides are the well-known barriers that hinder their practical applications. A carefully designed catalytic host of sulfur may be an effective strategy that not only accelerates the conversion of polysulfides but also limit their dissolution to mitigate the “shuttle effect.” Herein, in situ surface-phosphided Ni0.96Co0.03Mn0.01O (p-NCMO) oxide microspheres are prepared via gas-phase phosphidation as a catalytic host of sulfur. The as-prepared unique heterostructured microspheres, with enriched surface-coated metal phosphide, exhibit superior synergistic effect of catalytic conversion and absorption of the otherwise soluble intermediate polysulfides. Correspondingly, the sulfur cathode exhibits excellent electrochemical performance, including a high initial discharge capacity (1162 mAh gs-1 at 0.1C), long cycling stability (491 mAh gs-1 after 1000 cycles at 1C), and excellent rate performance (565 mAh gs-1 at 5C). Importantly, the newly prepared sulfur cathode shows a high areal capacity of 4.0 mAh cm-2 and long cycle stability under harsh conditions (high sulfur loading of 5.3 mg cm-2 and lean electrolyte/sulfur ratio of 5.8 μL mg-1). This work proposes an effective strategy to develop the catalytic hosts of sulfur for achieving high-performance Li-S batteries via surface phosphidation. © 2024 American Chemical Society.

引用

页码：21943 / 21952

页数：9

共 53 条

[1] Yin Y.X., Xin S., Guo Y.G., Wan L.J., Lithium-Sulfur Batteries: Electrochemistry, Materials, and Prospects, Angew. Chem., Int. Ed., 52, pp. 13186-13200, (2013)
[2] Peng H.J., Zhang Q., Designing Host Materials for Sulfur Cathodes: From Physical Confinement to Surface Chemistry, Angew. Chem., Int. Ed., 54, pp. 11018-11020, (2015)
[3] Liu Y.-T., Liu S., Li G.-R., Gao X.-P., Strategy of Enhancing the Volumetric Energy Density for Lithium-Sulfur Batteries, Adv. Mater., 33, 8, (2021)
[4] Kang W., Deng N., Ju J., Li Q., Wu D., Ma X., Li L., Naebe M., Cheng B., A Review of Recent Developments in Rechargeable Lithium-Sulfur Batteries, Nanoscale, 8, pp. 16541-16588, (2016)
[5] He F., Wu X., Qian J., Cao Y., Yang H., Ai X., Xia D., Building a Cycle-Stable Sulphur Cathode by Tailoring its Redox Reaction into a Solid-Phase Conversion Mechanism, J. Mater. Chem. A, 6, pp. 23396-23407, (2018)
[6] Pope M.A., Aksay I.A., Structural Design of Cathodes for Li-S Batteries, Adv. Energy Mater., 5, 16, (2015)
[7] Li R., Peng H., Wu Q., Zhou X., He J., Shen H., Yang M., Li C., Sandwich-like Catalyst-Carbon-Catalyst Trilayer Structure as a Compact 2D Host for Highly Stable Lithium-Sulfur Batteries, Angew. Chem., Int. Ed., 59, pp. 12129-12138, (2020)
[8] Tan J., Matz J., Dong P., Ye M., Shen J., Appreciating the Role of Polysulfides in Lithium-Sulfur Batteries and Regulation Strategies by Electrolytes Engineering, Energy Storage Mater., 42, pp. 645-678, (2021)
[9] Wang P., Xi B., Huang M., Chen W., Feng J., Xiong S., Emerging Catalysts to Promote Kinetics of Lithium-Sulfur Batteries, Adv. Energy Mater., 11, 7, (2021)
[10] Zhou H.J., Song C.L., Si L.P., Hong X.J., Cai Y.P., The Development of Catalyst Materials for the Advanced Lithium-Sulfur Battery, Catalysts, 10, (2020)

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