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Updated: Jun 30, 2026

A Dual-Functional Electroactive Filter Towards Simultaneously Sb(III) Oxidation and Sequestration

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Published on: December 5, 2019

Inhibiting selenium loss in sodium-selenium batteries via a Lewis acid-base dual-site host.

Rui Wang¹, Guoqiang Yuan¹, Lin Ding¹

¹School of Chemistry and Materials, Yangzhou University, Yangzhou, 225002 Jiangsu, P. R. China. wtlichem@yzu.edu.cn.

Chemical Communications (Cambridge, England)

|June 29, 2026

Summary

A novel nitrogen-doped carbon (NB@C) host material effectively anchors polyselenides, preventing active selenium loss and anode corrosion in sodium-selenium batteries. This design offers a general strategy for advanced selenium hosts.

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Last Updated: Jun 30, 2026

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Published on: December 5, 2019

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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

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Published on: August 12, 2013

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Sodium-selenium (Na-Se) batteries are promising next-generation energy storage devices.
Polyselenide shuttling and active material loss are major challenges hindering Na-Se battery performance.
Corrosion of the sodium metal anode by polyselenides further degrades battery stability.

Purpose of the Study:

To design and synthesize a novel host material for Na-Se batteries.
To anchor polyselenides and mitigate anode corrosion.
To improve the overall performance and stability of sodium-selenium batteries.

Main Methods:

A nitrogen-doped carbon (NB@C) host material was designed.
The material combines Lewis acid-base properties to anchor polyselenides.
Electrochemical performance of Na-Se batteries utilizing the NB@C host was evaluated.

Main Results:

The NB@C host effectively anchored polyselenides, significantly inhibiting their shuttle effect.
Corrosion on the sodium metal anode was mitigated.
Improved cycling stability and capacity retention were achieved in Na-Se batteries.

Conclusions:

The designed NB@C host material demonstrates excellent performance in Na-Se batteries.
This work presents a general and effective doping strategy for advanced selenium hosts.
The findings contribute to the development of high-performance sodium-selenium batteries.