Nanostructured bilayered vanadium oxide electrodes for rechargeable sodium-ion batteries
Tepavcevic, S; Xiong, H; Stamenkovic, VR; Zuo, X; Balasubramanian, M; Prakapenka, VB; Johnson, CS; Rajh, T
HERO ID
1256785
Reference Type
Journal Article
Year
2012
Language
English
PMID
| HERO ID | 1256785 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | Nanostructured bilayered vanadium oxide electrodes for rechargeable sodium-ion batteries |
| Authors | Tepavcevic, S; Xiong, H; Stamenkovic, VR; Zuo, X; Balasubramanian, M; Prakapenka, VB; Johnson, CS; Rajh, T |
| Journal | ACS Nano |
| Volume | 6 |
| Issue | 1 |
| Page Numbers | 530-538 |
| Abstract | Tailoring nanoarchitecture of materials offers unprecedented opportunities in utilization of their functional properties. Nanostructures of vanadium oxide, synthesized by electrochemical deposition, are studied as a cathode material for rechargeable Na-ion batteries. Ex situ and in situ synchrotron characterizations revealed the presence of an electrochemically responsive bilayered structure with adjustable intralayer spacing that accommodates intercalation of Na(+) ions. Sodium intake induces organization of overall structure with appearance of both long- and short-range order, while deintercalation is accompanied with the loss of long-range order, whereas short-range order is preserved. Nanostructured electrodes achieve theoretical reversible capacity for Na(2)V(2)O(5) stochiometry of 250 mAh/g. The stability evaluation during charge-discharge cycles at room temperature revealed an efficient 3 V cathode material with superb performance: energy density of ~760 Wh/kg and power density of 1200 W/kg. These results demonstrate feasibility of development of the ambient temperature Na-ion rechargeable batteries by employment of electrodes with tailored nanoarchitectures. |
| Doi | 10.1021/nn203869a |
| Pmid | 22148185 |
| Wosid | WOS:000299368300064 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000299368300064 |
| Is Public | Yes |
| Language Text | English |
| Keyword | nanostructured electrodes; electrochemical deposition; bilayered V2O5; sodium-ion battery |
| Is Qa | No |