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6. Optimization Strategies of Na3V2(PO4)3 Cathode Materials for Sodium-Ion Batteries.

Author

Hu, Jiawen, Li, Xinwei, Liang, Qianqian, Xu, Li, Ding, Changsheng, Liu, Yu, and Gao, Yanfeng

Subjects
ELECTROCHEMICAL electrodes, DIFFUSION kinetics, ENERGY density, STRUCTURAL stability, CATHODES, SODIUM ions
Abstract

Highlights: Optimization strategies for high-performance Na3V2(PO4)3 (NVP) cathode material are well summarized and discussed, including carbon coating or modification, foreign-ion doping or substitution and nanostructure and morphology design. The foreign-ion doping or substitution is highlighted, involving the Na, V, and PO43− sites, which include single-site doping, multiple-site doping, single-ion doping and multiple-ion doping. Challenges and future perspectives for high-performance NVP cathode material are presented. Na3V2(PO4)3 (NVP) has garnered great attentions as a prospective cathode material for sodium-ion batteries (SIBs) by virtue of its decent theoretical capacity, superior ion conductivity and high structural stability. However, the inherently poor electronic conductivity and sluggish sodium-ion diffusion kinetics of NVP material give rise to inferior rate performance and unsatisfactory energy density, which strictly confine its further application in SIBs. Thus, it is of significance to boost the sodium storage performance of NVP cathode material. Up to now, many methods have been developed to optimize the electrochemical performance of NVP cathode material. In this review, the latest advances in optimization strategies for improving the electrochemical performance of NVP cathode material are well summarized and discussed, including carbon coating or modification, foreign-ion doping or substitution and nanostructure and morphology design. The foreign-ion doping or substitution is highlighted, involving Na, V, and PO43− sites, which include single-site doping, multiple-site doping, single-ion doping, multiple-ion doping and so on. Furthermore, the challenges and prospects of high-performance NVP cathode material are also put forward. It is believed that this review can provide a useful reference for designing and developing high-performance NVP cathode material toward the large-scale application in SIBs. [ABSTRACT FROM AUTHOR]

Published
2024
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18. High-capacity FeTiO₃/C negative electrode for sodium-ion batteries with ultralong cycle life

Author

Ding, Changsheng, Nohira, Toshiyuki, and Hagiwara, Rika

Subjects
Negative electrode materials, Sodium ion batteries, Charge-discharge mechanism, High stability, High capacity
Abstract

The development of electrode materials which improve both the energy density and cycle life is one of the most challenging issues facing the practical application of sodium-ion batteries today. In this work, FeTiO₃/C nanoparticles are synthesized as negative electrode materials for sodium-ion batteries. The electrochemical performance and charge-discharge mechanism of the FeTiO₃/C negative electrode are investigated in an ionic liquid electrolyte at 90 °C. The FeTiO₃/C negative electrode delivers a high reversible capacity of 403 mAh g⁻¹ at a current rate of 10 mA g⁻¹, and exhibits high rate capability and excellent cycling stability for up to 2000 cycles. The results indicate that FeTiO₃/C is a promising negative electrode material for sodium-ion batteries.

Published
2018

25. Charge-discharge Performance of an Ionic Liquid-based Sodium Secondary Battery in a Wide Temperature Range

Author

DING, Changsheng, NOHIRA, Toshiyuki, FUKUNAGA, Atsushi, and HAGIWARA, Rika

Subjects
Charge-discharge Performance, Sodium Secondary Battery, Ionic Liquid, Wide Operation Temperature
Abstract

A sodium secondary battery has been constructed by using a nonvolatile and nonflammable Na[FSA]-[C(3)C(1)pyrr][FSA] (FSA = bis(fluorosulfonyl)amide, C(3)C(1)pyrr = N-methyl-N-propylpyrrolidinium) ionic liquid, a NaCrO(2) positive electrode and a Na metal negative electrode. The charge-discharge performance is evaluated over a wide temperature range of −20–90℃. It has been demonstrated that the sodium secondary battery has long cycle lives both at a high temperature of 90℃ and at a low temperature of 0℃. Thus, the ionic liquid-based sodium secondary battery is expected to be a viable alternative to lithium ion battery for many applications.

Published
2015

26. Study of microextrusion printing for enlarging electrode-electrolyte interfacial area in anode-supported SOFCs

Author

10757636, 00314229, Seo, Haewon, Nishi, Taisei, Kishimoto, Masashi, Ding, Changsheng, Iwai, Hiroshi, Saito, Motohiro, Yoshida, Hideo, 10757636, 00314229, Seo, Haewon, Nishi, Taisei, Kishimoto, Masashi, Ding, Changsheng, Iwai, Hiroshi, Saito, Motohiro, and Yoshida, Hideo

Abstract

Anode ridge structures are fabricated by printing anode pastes having different rheological properties to increase the electrode–electrolyte interfacial area in anode-supported solid oxide fuel cells. Homogeneous anode pastes are prepared by varying solid loadings, then their rheological characteristics are evaluated. It is confirmed that the shear stress at the same shear rate increases with increasing solid loading. The prepared pastes are printed onto flat anode substrates and then the width and height of the printed pastes are observed before and after drying and after sintering. As increasing solid loading in the paste, not only the width and height become smaller and larger, respectively, but also the shrinkage rate of the aspect ratio becomes smaller. Consequently, a large extension of the interfacial area of about 285% is obtained by printing the paste with the solid loading of 80%.

Published
2019

27. High-capacity FeTiO₃/C negative electrode for sodium-ion batteries with ultralong cycle life

Author

00303876, 30237911, Ding, Changsheng, Nohira, Toshiyuki, Hagiwara, Rika, 00303876, 30237911, Ding, Changsheng, Nohira, Toshiyuki, and Hagiwara, Rika

Abstract

The development of electrode materials which improve both the energy density and cycle life is one of the most challenging issues facing the practical application of sodium-ion batteries today. In this work, FeTiO₃/C nanoparticles are synthesized as negative electrode materials for sodium-ion batteries. The electrochemical performance and charge-discharge mechanism of the FeTiO₃/C negative electrode are investigated in an ionic liquid electrolyte at 90 °C. The FeTiO₃/C negative electrode delivers a high reversible capacity of 403 mAh g⁻¹ at a current rate of 10 mA g⁻¹, and exhibits high rate capability and excellent cycling stability for up to 2000 cycles. The results indicate that FeTiO₃/C is a promising negative electrode material for sodium-ion batteries.

Published
2018

36. Charge-discharge Performance of an Ionic Liquid-based Sodium Secondary Battery in a Wide Temperature Range

Author

00303876, 30237911, DING, Changsheng, NOHIRA, Toshiyuki, FUKUNAGA, Atsushi, HAGIWARA, Rika, 00303876, 30237911, DING, Changsheng, NOHIRA, Toshiyuki, FUKUNAGA, Atsushi, and HAGIWARA, Rika

Abstract

A sodium secondary battery has been constructed by using a nonvolatile and nonflammable Na[FSA]-[C(3)C(1)pyrr][FSA] (FSA = bis(fluorosulfonyl)amide, C(3)C(1)pyrr = N-methyl-N-propylpyrrolidinium) ionic liquid, a NaCrO(2) positive electrode and a Na metal negative electrode. The charge-discharge performance is evaluated over a wide temperature range of −20–90℃. It has been demonstrated that the sodium secondary battery has long cycle lives both at a high temperature of 90℃ and at a low temperature of 0℃. Thus, the ionic liquid-based sodium secondary battery is expected to be a viable alternative to lithium ion battery for many applications.

Published
2015

38. This title is unavailable for guests, please login to see more information.

Author

Hagiwara, Rika, Nohira, Toshiyuki, Ding, Changsheng, Fukunaga, Atsushi, Sakai, Shoichiro, Nitta, Koji, Inazawa, Shinji, 30237911, 00303876, Hagiwara, Rika, Nohira, Toshiyuki, Ding, Changsheng, Fukunaga, Atsushi, Sakai, Shoichiro, Nitta, Koji, Inazawa, Shinji, 30237911, and 00303876

Published
2013

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