天然赤铁矿衍生NiFe2O4作为隔膜改性材料改善锂硫电池性能。

IF 4.3 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2025-01-28 DOI:10.1039/d4cc05975a

Lei Zhang, Jiawen Cui, Haoxian Zhu, Kun Yang, Wei Li, Li Sun

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引用次数: 0

摘要

锂硫电池中多硫化物的穿梭效应严重影响其性能。本文将天然赤铁矿中提取的NiFe2O4包覆在PP分离器（NFO@PP）上，可以有效阻断多硫化物的穿梭，具有较强的吸附和催化能力。NFO@PP电池在0.1C时的初始容量高达1258.1 mA h g-1，在2C时仍有809.6 mA h g-1。令人印象深刻的是，在0.5℃下，NFO@PP电池在1000次循环后保持612.1 mA h -1的比容量。丰富的天然赤铁矿在锂硫电池中的成功应用，必将对开发更具成本效益的储能装置具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Natural hematite-derived NiFe₂O₄ as a separator modification material for improved Li-S battery performance.

The shuttling effect of polysulfides in lithium-sulfur batteries seriously affects their performance. Herein, NiFe₂O₄ derived from natural hematite is coated on a PP separator (NFO@PP), which can effectively block the shuttling of polysulfides and has strong adsorption and catalytic capabilities. The NFO@PP cell has an initial capacity of up to 1258.1 mA h g^-1 at 0.1C and still has 809.6 mA h g^-1 at 2C. Impressively, at 0.5C, the NFO@PP cell retains a specific capacity of 612.1 mA h g^-1 after 1000 cycles. The successful application of abundant natural hematite in lithium-sulfur batteries will certainly be of great significance to the development of more cost-effective energy storage devices.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.