Na–Mn–O@C yolk–shell nanorods as an ultrahigh electrochemical performance anode for lithium ion batteries
A considerable amount of intensive research has been made towards efficient energy storage, particularly regarding rechargeable lithium-ion batteries (LIBs). However, there are still huge limitations to the applications of state-of-the-art LIBs, including their inadequate durability, safety concerns...
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Published in | Journal of materials chemistry. A, Materials for energy and sustainability Vol. 5; no. 35; pp. 18509 - 18517 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
2017
|
Online Access | Get full text |
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Summary: | A considerable amount of intensive research has been made towards efficient energy storage, particularly regarding rechargeable lithium-ion batteries (LIBs). However, there are still huge limitations to the applications of state-of-the-art LIBs, including their inadequate durability, safety concerns and high costs, and so they cannot meet the ever-growing demand for portable electronic devices and power batteries. Therefore, designing viable LIBs with high cost efficiency and performance through integration of new alternative electrode materials possessing well-controlled nanostructures is critical. Herein, we rationally design a facile and effective method to construct Na
0.55
Mn
2
O
4
·1.5H
2
O@C (SMOH@C) yolk–shell nanorods which integrate a one side internal void with the outer carbon shell framework. By virtue of such a yolk–shell structure and composition, as an anode material, the as-built electrode endows LIBs with attractive electrochemical performances including a high specific reversible capacity (750 mA h g
−1
at 0.1 A g
−1
), an excellent rate and superior long term cycling capability (448 mA h g
−1
capacity retention after 3000 cycles at 4.0 A g
−1
). This unique structure design strategy paves the way to produce new anode materials with superior performances for next-generation LIBs. |
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ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/C7TA06046G |