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Journal ArticleDOI

Melamine-assisted synthesis of Fe3N featuring highly reversible crystalline-phase transformation for ultrastable sodium ion storage

TLDR
In this paper, a combination of facile chemical binding engineering with a fast electronic/ionic transport construction strategy is firstly proposed to mitigate the poor electrochemical stability of metal nitrides caused by amorphorization and pulverization during a long-term sodiation/desodiation process.
Abstract
Metal nitride-based materials are deemed to be promising anodes for sodium ion batteries (SIBs) due to their attractive electrical conductivity and considerable theoretical capacity. However, the poor electrochemical stability of metal nitrides caused by amorphorization and pulverization during a long-term sodiation/desodiation process limits their practical applications. Herein, a combination of facile chemical binding engineering with a fast electronic/ionic transport construction strategy is firstly proposed to mitigate these problems. As a demonstration, core–shell Fe3N@C nanoparticles are chemically immobilized on three-dimensional N-doped carbon foam (3DNCF) via a straightforward and scalable adsorption–annealing route. Arising from the synergistic effects from strong chemical binding between Fe3N nanoparticles and 3DNCF, fast electronic/ionic transport pathways and a robust carbon coating layer, the flexible and self-supported Fe3N@C/3DNCF anode can maintain highly reversible crystalline-phase transformation without significant pulverization in the whole cycling process when evaluated as an anode for SIBs. As a result, Fe3N@C/3DNCF shows a remarkable capacity retention rate of 94.9% for 2000 cycles at 1.0 A g−1 with a high capacity of 374.8 mA h g−1. This work may provide an alternative strategy to design long-cycle-life conversion-type anodes for SIBs.

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Journal ArticleDOI

A Fe3N/carbon composite electrocatalyst for effective polysulfides regulation in room-temperature Na-S batteries.

TL;DR: In this article, an electrocatalyst composite material comprising of N-doped nanocarbon and Fe3N was proposed to regulate the polysulfides chemistry and improve the performances of room-temperature Na-S batteries.
Journal ArticleDOI

Novel hybrid of amorphous Sb/N-doped layered carbon for high-performance sodium-ion batteries

TL;DR: In this paper, a novel hybrid of amorphous Sb/N-doped layered carbon (a-Sb/NC) was fabricated through a facile bottom-up method.
Journal ArticleDOI

Efficient synthesis of Cu3P nanoparticles confined in 3D nitrogen-doped carbon networks as high performance anode for lithium/sodium-ion batteries

TL;DR: In this article, a 3D porous carbon network (3D-P/N-CN) was proposed to improve the performance of the nano-scale copper phosphide (Cu3P) nanoparticles.
Journal ArticleDOI

Porous hierarchical TiO2/MoS2/RGO nanoflowers as anode material for sodium ion batteries with high capacity and stability

TL;DR: In this paper, the authors constructed a hybrid architecture composed of MoS2 and TiO2 nanosheets, linking with reduced graphene oxide (RGO) to form a nanoflower structure.
References
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Journal ArticleDOI

Na-ion batteries, recent advances and present challenges to become low cost energy storage systems

TL;DR: In this paper, a review of Na-ion battery materials is presented, with the aim of providing a wide view of the systems that have already been explored and a starting point for the new research on this battery technology.
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Room-temperature stationary sodium-ion batteries for large-scale electric energy storage

TL;DR: In this paper, a variety of electrode materials including cathodes and anodes as well as electrolytes for room-temperature stationary sodium-ion batteries are briefly reviewed and compared the difference in storage behavior between Na and Li in their analogous electrodes and summarize the sodium storage mechanisms in available electrode materials.
Journal ArticleDOI

The emerging chemistry of sodium ion batteries for electrochemical energy storage.

TL;DR: The Review considers some of the current scientific issues underpinning sodium ion batteries, including the discovery of new materials, their electrochemistry, and an increased understanding of ion mobility based on computational methods.
Journal ArticleDOI

Expanded graphite as superior anode for sodium-ion batteries

TL;DR: Expanded graphite is reported as a Na-ion battery anode, prepared through a process of oxidation and partial reduction on graphite, which has an enlarged interlayer lattice distance yet retains an analogous long-range-ordered layered structure to graphite.
Journal ArticleDOI

From Lithium-Ion to Sodium-Ion Batteries: Advantages, Challenges, and Surprises.

TL;DR: This review provides a state-of-the art overview on the redox behavior of materials when used as electrodes in lithium-ion and sodium-ion batteries, respectively.
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