Journal
ADVANCED SCIENCE
Volume 2, Issue 12, Pages -Publisher
WILEY
DOI: 10.1002/advs.201500200
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Funding
- Sofja Kovalevskaja award of the Alexander von Humboldt Foundation
- National Natural Science Foundation of China [21171015, 21373195]
- Recruitment Program of Global Experts
- New Century Excellent Talents in University (NCET)
- Fundamental Research Funds for the Central Universities [WK2060140014, WK2060140016]
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- European Union [312483]
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Transition metal sulfides have a great potential for energy storage due to the pronouncedly higher capacity (owing to conversion to metal or even alloy) than traditional insertion electrode materials. However, the poor cycling stability still limits the development and application in lithium and sodium ion batteries. Here, taking SnS as a model material, a novel general strategy is proposed to fabricate a 3D porous interconnected metal sulfide/carbon nanocomposite by the electrostatic spray deposition technique without adding any expensive carbonaceous materials such as graphene or carbon nanotube. In this way, small nanorods of SnS are generated with sizes of approximate to 10-20 nm embedded in amorphous carbon and self-assembled into a 3D porous interconnected nanocomposite. The SnS:C is directly deposited on the Ti foil as a current collector and neither conductive additives nor binder are needed for battery assembly. Such electrodes exhibit a high reversible capacity, high rate capability, and long cycling stability for both lithium and sodium storage.
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