DataVXAdvanced Functional MaterialsPaper
journal article·2025-05Open access

Functional p‐π Conjugated Organic Layer Empowers Stable Sodium Metal Batteries

Zhen Shen, Zhihui Bo, Ruijuan Shi, Luojia Liu, Haixia Li, Xunzhu Zhou, Jiazhao Wang, Yong Zhao, Lin Li

Advanced Functional Materials· Volume 35· Issue 19
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Source abstract

Abstract

Abstract Sodium metal batteries (SMBs) with the advantages of high energy density and low cost have attracted extensive attention as next‐generation rechargeable battery technology. However, SMBs suffer from severe Na dendrite and undesired solid electrolyte interface (SEI) layer, which inevitably destroy cycling durability and safety. Herein, a p‐π conjugated organic molecule (OHTAPQ) with redox‐active carbonyls and pyrazines is employed as a robust artificial SEI layer on Na anode (denoted as OHTAPQ@Na) to address these issues. The unique chelation of N and O with Na + ions in an OHTAPQ‐based layer facilitates good adsorption capacity and low Na + diffusion barries for uniform Na deposition behavior. As a result, the OHTAPQ@Na||OHTAPQ@Na symmetric cell shows a long‐term cycle lifespan (over 1500 h at 2 mA cm −2 ), and the OHTAPQ@Na||Na 3 V 2 (PO 4 ) 3 cells deliver a capacity retention of 82% after 1600 cycles. This research provides a handy way for anode protection with functional conjugated organics in SMBs.
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Research context

Energy storageMaterials processing

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Metal-Organic Frameworks: Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Nanoscience Materials Engineeering Key Lab for Special Functional Materials of Ministry of Education Henan University Jinming Avenue Kaifeng 475001 P. R. China

SHD (Shanghai Battery Development Center) FinDreams Battery Company Co., Ltd. No. 999, Xiangjing Road, Songjiang Shanghai 201611 P. R. China

Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University Tianjin 300071 P. R. China

College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 P. R. China

Institute for Superconducting and Electronic Materials University of Wollongong Wollongong New South Wales 2522 Australia

Funding

National Natural Science Foundation of China · China Postdoctoral Science Foundation · Natural Science Foundation of Zhejiang Province · Science and Technology Plan Project of Wenzhou Municipality

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