Volume 19, Issue 48 2303763
Research Article

Temperature Effects on Electrochemical Energy-Storage Materials: A Case Study of Yttrium Niobate Porous Microspheres

Songjie Li

Songjie Li

Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Academy for Engineering & Technology, Fudan University, Shanghai, 200438 China

Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao, 266071 China

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Jiazhe Gao

Jiazhe Gao

Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao, 266071 China

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Yinjun Ou

Yinjun Ou

Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao, 266071 China

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Xuehua Liu

Xuehua Liu

Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao, 266071 China

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Liting Yang

Liting Yang

Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Academy for Engineering & Technology, Fudan University, Shanghai, 200438 China

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Yifeng Cheng

Yifeng Cheng

Zhejiang Laboratory, Hangzhou, 311100 China

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Jincang Zhang

Jincang Zhang

Zhejiang Laboratory, Hangzhou, 311100 China

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Liming Wu

Corresponding Author

Liming Wu

Inner Mongolia University, Hohhot, 010021 China

E-mails: [email protected]; [email protected]; [email protected]

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Chunfu Lin

Corresponding Author

Chunfu Lin

Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Academy for Engineering & Technology, Fudan University, Shanghai, 200438 China

Institute of Materials for Energy and Environment, School of Materials Science and Engineering, Qingdao University, Qingdao, 266071 China

E-mails: [email protected]; [email protected]; [email protected]

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Renchao Che

Corresponding Author

Renchao Che

Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Academy for Engineering & Technology, Fudan University, Shanghai, 200438 China

Zhejiang Laboratory, Hangzhou, 311100 China

E-mails: [email protected]; [email protected]; [email protected]

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First published: 28 July 2023
Citations: 3

Abstract

Lithium-ion batteries (LIBs) are very popular electrochemical energy-storage devices. However, their applications in extreme environments are hindered because their low- and high-temperature electrochemical performance is currently unsatisfactory. In order to build all-climate LIBs, it is highly desirable to fully understand the underlying temperature effects on electrode materials. Here, based on a novel porous-microspherical yttrium niobate (Y0.5Nb24.5O62) model material, this work demonstrates that the operation temperature plays vital roles in electrolyte decomposition on electrode-material surfaces, electrochemical kinetics, and crystal-structure evolution. When the operation temperature increases, the reaction between the electrolyte and the electrode material become more intensive, causing the formation of thicker solid electrolyte interface (SEI) films, which decreases the initial Coulombic efficiency. Meanwhile, the electrochemical kinetics becomes faster, leading to the larger reversible capacity, higher rate capability, and more suitable working potential (i.e., lower working potential for anodes and higher working potential for cathodes). Additionally, the maximum unit-cell-volume change becomes larger, resulting in poorer cyclic stability. The insight gains here can provide a universal guide for the exploration of all-climate electrode materials and their modification methods.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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