An ultrastable anode for long-life room-temperature sodium-ion batteries
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 8963-8969 |
| Journal / Publication | Angewandte Chemie - International Edition |
| Volume | 53 |
| Issue number | 34 |
| Publication status | Published - 18 Aug 2014 |
| Externally published | Yes |
Link(s)
Abstract
Sodium-ion batteries are important alternative energy storage devices that have recently come again into focus for the development of large-scale energy storage devices because sodium is an abundant and low-cost material. However, the development of electrode materials with long-term stability has remained a great challenge. A novel negative-electrode material, a P2-type layered oxide with the chemical composition Na<sub>2/3</sub>Co<sub>1/3</sub>Ti <sub>2/3</sub>O<sub>2</sub>, exhibits outstanding cycle stability (ca. 84.84% capacity retention for 3000 cycles, very small decrease in the volume (0.046%) after 500 cycles), good rate capability (ca. 41% capacity retention at a discharge/charge rate of 10C), and a usable reversible capacity of about 90 mAhg<sup>-1</sup> with a safe average storage voltage of approximately 0.7 V in the sodium half-cell. This P2-type layered oxide is a promising anode material for sodium-ion batteries with a long cycle life and should greatly promote the development of room-temperature sodium-ion batteries. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Research Area(s)
- anode materials, electrochemistry, sodium storage, sodium-ion batteries
Bibliographic Note
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Citation Format(s)
An ultrastable anode for long-life room-temperature sodium-ion batteries. / Yu, Haijun; Ren, Yang; Xiao, Dongdong et al.
In: Angewandte Chemie - International Edition, Vol. 53, No. 34, 18.08.2014, p. 8963-8969.
In: Angewandte Chemie - International Edition, Vol. 53, No. 34, 18.08.2014, p. 8963-8969.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
