Anode-free sodium metal batteries: Current developments, strategies, and perspectives

IF 20.2 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials Pub Date : 2025-07-01 DOI:10.1016/j.ensm.2025.104439

Junwei Sun , Xiaoyu Shi , Endian Yang , Zhihao Ren , Yingxin Tian , Yu Yao , Yan Yu , Zhong-Shuai Wu

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Abstract

Anode-free sodium metal batteries (AFSMBs) with high energy density, high safety, and low cost are considered as one promising alternative for future energy storage systems. However, there are some key challenges such as the formation and growth of Na dendrite, poor stability of solid electrolyte interphase, and limited Na source at the cathodes that result in low Coulombic efficiency and limited cycle life, hindering the practical application of AFSMBs. This review presents the current advancements and potential development directions of AFSMBs. Firstly, the intrinsic advantages and key challenges of AFSMBs are summarized and introduced in brief. Further, the main design strategies for extending the cycle life of AFSMBs on current collector modification, electrolyte design, and cathode presodiation are systematically discussed. Finally, we present the perspectives on the future development of AFSMBs and hope to shed new light on practical applications of AFSMBs.

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无阳极钠金属电池：当前发展、策略与展望

无阳极金属钠电池（AFSMBs）具有高能量密度、高安全性和低成本的特点，是未来储能系统的一种有前景的替代方案。然而，由于钠枝晶的形成和生长、固体电解质界面稳定性差、阴极Na源有限等问题，导致库仑效率低，循环寿命有限，阻碍了afsmb的实际应用。本文综述了农业中小企业的发展现状和潜在的发展方向。首先，对中小企业的内在优势和面临的主要挑战进行了简要的总结和介绍。在此基础上，系统地讨论了提高afsmb循环寿命的主要设计策略，包括集热器改造、电解液设计和阴极沉淀。最后，我们对AFSMBs的未来发展进行了展望，希望能对AFSMBs的实际应用有所启发。

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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来源期刊

Energy Storage Materials Materials Science-General Materials Science

CiteScore

33.00

自引率

5.90%

发文量

652

审稿时长

27 days

期刊介绍： Energy Storage Materials is a global interdisciplinary journal dedicated to sharing scientific and technological advancements in materials and devices for advanced energy storage and related energy conversion, such as in metal-O2 batteries. The journal features comprehensive research articles, including full papers and short communications, as well as authoritative feature articles and reviews by leading experts in the field. Energy Storage Materials covers a wide range of topics, including the synthesis, fabrication, structure, properties, performance, and technological applications of energy storage materials. Additionally, the journal explores strategies, policies, and developments in the field of energy storage materials and devices for sustainable energy. Published papers are selected based on their scientific and technological significance, their ability to provide valuable new knowledge, and their relevance to the international research community.