期刊
SMALL
卷 13, 期 30, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201700767
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资金
- Industrial Strategic Technology Development Program [10050477]
- Ministry of Trade, Industry and Energy
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2016R1A2B4009601, 2016R1A6A3A11930304, 2017R1C1B1004167]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10050477] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2017R1C1B1004167, 2016H1A2A1909532, 2016R1A6A3A11930304] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Nanohybrid anode materials for Na-ion batteries (NIBs) based on conversion and/or alloying reactions can provide significantly improved energy and power characteristics, while suffering from low Coulombic efficiency and unfavorable voltage properties. An NIB paper-type nanohybrid anode (PNA) based on tin sulfide nanoparticles and acid-treated multiwalled carbon nanotubes is reported. In 1 m NaPF6 dissolved in diethylene glycol dimethyl ether as an electrolyte, the above PNA shows a high reversible capacity of approximate to 1200 mAh g(-1) and a large voltage plateau corresponding to a capacity of approximate to 550 mAh g(-1) in the low-voltage region of approximate to 0.1 V versus Na+/Na, exhibiting high rate capabilities at a current rate of 1 A g(-1) and good cycling performance over 250 cycles. In addition, the PNA exhibits a high first Coulombic efficiency of approximate to 90%, achieving values above 99% during subsequent cycles. Furthermore, the feasibility of PNA usage is demonstrated by full-cell tests with a reported cathode, which results in high specific energy and power values of approximate to 256 Wh kg(-1) and 471 W kg(-1), respectively, with stable cycling.
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