首页|Review and prospects on the low-voltage Na2Ti3O7 anode materials for sodium-ion batteries

Review and prospects on the low-voltage Na2Ti3O7 anode materials for sodium-ion batteries

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Due to its low cost and natural abundance of sodium,Na-ion batteries(NIBs)are promising candidates for large-scale energy storage systems.The development of ultralow voltage anode materials is of great sig-nificance in improving the energy density of NIBs.Low-voltage anode materials,however,are severely lacking in NIBs.Of all the reported insertion oxides anodes,the Na2Ti3O7 has the lowest operating voltage(an average potential of 0.3 V vs.Na+/Na)and is less likely to deposit sodium,which has excellent poten-tial for achieving NIBs with high energy densities and high safety.Although significant progress has been made,achieving Na2Ti3O7 electrodes with excellent performance remains a severe challenge.This paper systematically summarizes and discusses the physicochemical properties and synthesis methods of Na2Ti3O7.Then,the sodium storage mechanisms,key issues and challenges,and the optimization strate-gies for the electrochemical performance of Na2Ti3O7 are classified and further elaborated.Finally,remaining challenges and future research directions on the Na2Ti3O7 anode are highlighted.This review offers insights into the design of high-energy and high-safety NIBs.

Sodium-ion batteriesLow-voltage anode materialsNa2Ti3O7Electrochemical performancesElectrochemical mechanism

Jun Dong、Yalong Jiang、Ruxing Wang、Qiulong Wei、Qinyou An、Xiaoxing Zhang

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Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System,Hubei University of Technology,Wuhan 430068,Hubei,China

State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan 430200,Hubei,China

Xiamen Key Laboratory of High-Performance Metals and Materials,College of Materials,Xiamen University,Xiamen 361005,Fujian,China

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,Hubei,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Hubei ProvinceNatural Science Foundation of Hubei Province

5230723952102300522072342022CFB10032021CFA025

2024

10.1016/j.jechem.2023.09.039

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.88(1)
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