Sacrificial template synthesis of hollow C@MoS2@PPy nanocomposites as anodes for enhanced sodium storage performance
- Ludong Univ., Yantai (China)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Molybdenum disulfide (MoS2) has become a potential anode material for sodium-ion batteries (SIBs) by showing decent cell performance but it suffers poor electronic conductivity and large volume expansion during sodiation. Here we design a nanocomposite with hollow nitrogen doped carbon and polypyrrole modified MoS2 for improving the performance for SIBs. The designed nanocomposite shows a much-improved electronic conductivity and the design of the architecture provides sufficient channels for mass transport and accommodates large volume change. This C@MoS2@PPy anode delivers a high specific capacity of 713 mAh g-1 at 0.1 A g-1 for 100 cycles, and an excellent rate capacity of 294 mAh g-1 at 5 A g-1 for 500 cycles. This specific architecture of C@MoS2@PPy could guide the future design of the electrode material in SIBs and its superior electrochemical performance indicates the great potential application for SIBs.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); USDOE Office of Energy Efficiency and Renewable Energy (EERE) - Office of Vehicle Technologies (VTO)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1523650
- Journal Information:
- Nano Energy, Journal Name: Nano Energy Journal Issue: C Vol. 60; ISSN 2211-2855
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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