Negative electrodes for Na-ion batteries

  • Komaba S
  • Dahbi M
  • Yabuuchi N
 et al. 
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Abstract

This perspective article reviews recent research progress and prospect of negative electrode materials for Na-ion battery. These electrode materials have diff erent reaction mechanisms for electrochemical sodiation/desodiation processes. Moreover, not only sodiation-active materials but also binders, current collectors, electrolytes, electrode/electrolyte interphase and passivative stabilization are essential for long cycle life Na-ion batteries. This paper also addresses the prospect of Na-ion batteries as low-cost and long-life batteries with relatively high-energy density, as their potential competitive edge over the commercialized Li-ion batteries. Research interest in Na-ion batteries has increased rapidly because of the environmental friendliness of sodium compared to lithium. Throughout this Perspective paper, we report and review recent scientific advances in the field of negative electrode materials used for Na-ion batteries. This paper sheds light on negative electrode materials for Na-ion batteries: carbonaceous materials, oxides/phosphates (as sodium insertion materials), sodium alloy/compounds and so on. These electrode materials have different reaction mechanisms for electrochemical sodiation/desodiation processes. Moreover, not only sodiation-active materials but also binders, current collectors, electrolytes and electrode/electrolyte interphase and its stabilization are essential for long cycle life Na-ion batteries. This paper also addresses the prospect of Na-ion batteries as low-cost and long-life batteries with relatively high-energy density as their potential competitive edge over the commercialized Li-ion batteries.

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Authors

  • See Shinichi Komaba

  • Mouad Dahbi

  • Naoaki Yabuuchi

  • Kei Kubota

  • Kazuyasu Tokiwa

  • Shinichi Komaba

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