Niobium pentoxide based materials for high rate rechargeable electrochemical energy storage.
Niobium pentoxide based materials for high rate rechargeable electrochemical energy storage.
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DOI：
10.1039/d0mh01481h
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发表时间：
2021-04
影响因子：
13.3
通讯作者：
Fei Shen;Zhongti Sun;Qinggang He;Jingyu Sun;R. Kaner;Yuanlong Shao
中科院分区：
文献类型：
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作者：
Fei Shen;Zhongti Sun;Qinggang He;Jingyu Sun;R. Kaner;Yuanlong Shao
在便携式电子设备、混合动力/电动汽车以及平衡智能电网的需求的推动下，对高速率储能系统的需求不断增加。因此，Nb2O5基材料因其快速的阳离子插入式法拉第电荷存储特性而受到人们的广泛关注。本文介绍了Nb2O5的五种主要相的晶体特征，并分析了它们的特定电化学特性，重点研究了T-Nb2O5的本征离子插层赝电容行为。综述了Nb2O5阳极的电荷存储机理、电化学性能和表征技术。其次，综述了近年来Nb2O5基快速充电电极材料的研究进展，包括Nb2O5基混合金属氧化物和复合材料。最后，我们强调了Nb2O5基材料在高倍率可充电储能领域面临的主要挑战，并对未来的研究提出了展望。
The demand for high rate energy storage systems is continuously increasing driven by portable electronics, hybrid/electric vehicles and the need for balancing the smart grid. Accordingly, Nb2O5 based materials have gained great attention because of their fast cation intercalation faradaic charge storage that endows them with high rate energy storage performance. In this review, we describe the crystalline features of the five main phases of Nb2O5 and analyze their specific electrochemical characteristics with an emphasis on the intrinsic ion intercalation pseudocapacitive behavior of T-Nb2O5. The charge storage mechanisms, electrochemical performance and state-of-the-art characterization techniques for Nb2O5 anodes are summarized. Next, we review recent progress in developing various types of Nb2O5 based fast charging electrode materials, including Nb2O5 based mixed metal oxides and composites. Finally, we highlight the major challenges for Nb2O5 based materials in the realm of high rate rechargeable energy storage and provide perspectives for future research.