Mesoporous Carbon@Titanium Nitride Hollow Spheres as an Efficient SeS2 Host for Advanced Li–SeS2 Batteries

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Original languageEnglish
Pages (from-to)16003-16007
Journal / PublicationAngewandte Chemie - International Edition
Issue number50
Publication statusPublished - 11 Dec 2017
Externally publishedYes


The introduction of a certain proportion of selenium into sulfur-based cathodes is an effective strategy for enhancing the integrated battery performance. However, similar to sulfur, selenium sulfide cathodes suffer from poor cycling stability owing to the dissolution of reaction intermediate products. In this study, to exploit the advantages of SeS<sub>2</sub> to the full and avoid its shortcomings, we designed and synthesized a hollow mesoporous carbon@titanium nitride (HMC@TiN) host for loading 70 wt % of SeS<sub>2</sub> as a cathode material for Li–SeS<sub>2</sub> batteries. Benefiting from both physical and chemical entrapment by hollow mesoporous carbon and TiN, the HMC@TiN/SeS<sub>2</sub> cathode manifests high utilization of the active material and excellent cycling stability. Moreover, it exhibits promising areal capacity (up to 4 mAh cm<sup>−2</sup>) with stable cell performance in the high-mass-loading electrode. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Research Area(s)

  • hollow mesoporous carbon, mesoporous materials, rechargeable batteries, selenium sulfides, titanium nitride

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