High-Voltage Fe-Based Tunnel-Type Na0.66[Mn0.33Fe0.33Ti0.3Sn0.04]O2 Cathode for Aqueous Rechargeable Sodium-Ion Battery

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2024-12-23 DOI:10.1021/acsami.4c18772

Fei Dong, Bin Yang, Xueqian Zhang, Ziqiang Yang, Sen Wang, Zhiguo Hou, Pu Chen

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Abstract

Tunnel-type-structure Na_0.44MnO₂ has been extensively researched for cathode material in aqueous rechargeable sodium-ion battery owing to its high specific capacity (120 mA h g^–1), large channels facilitating Na extraction/insertion, chemical and electrochemical stability in aqueous electrolytes, and low cost. However, the low average working potential (0.1 V versus standard hydrogen electrode, SHE) and no more than half of its available theoretical capacity within full batteries limit the practical application. Herein, we develop an Fe-based tunnel-type Na_0.66[Mn_0.33Fe_0.33Ti_0.3Sn_0.04]O₂ cathode, delivering a high reversible specific capacity (95 mA h g^–1) under a high working voltage (0.75 V versus SHE). A full battery, assembled with a NaTi₂(PO₄)₃@C anode, exhibits a high energy density of 80 W h kg^–1 (total mass of cathode and anode active materials) and a long cycle life with 84% capacity retention after 1000 cycles at 1 C.

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.