Reversible NaFePO4 electrode for sodium secondary batteries
- Authors
- Oh, Seung-Min; Myung, Seung-Taek; Hassoun, Jusef; Scrosati, Bruno; Sun, Yang Kook
- Issue Date
- Aug-2012
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- NaFePO4; Olivine; Na; Secondary batteries
- Citation
- ELECTROCHEMISTRY COMMUNICATIONS, v.22, pp.149 - 152
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTROCHEMISTRY COMMUNICATIONS
- Volume
- 22
- Start Page
- 149
- End Page
- 152
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27497
- DOI
- 10.1016/j.elecom.2012.06.014
- ISSN
- 1388-2481
- Abstract
- The behavior of a NaFePO4 cathode, obtained by electrochemical Li-Na exchange of LiFePO4 olivine, is characterized in a sodium battery. The NaFePO4 electrode here developed shows remarkable electrochemical properties in the sodium cell, such as long charge-discharge cycle life and high rate capability. X-ray diffraction analysis reveals that the NaFePO4 electrode keeps its original structure upon 50 charge-discharge cycles. The Na/NaFePO4 battery operates with a working voltage of 2.7 V and a stable capacity of 125 mAh g(-1) namely at 80% of the theoretical value. The results here reported demonstrate that the olivine NaFePO4 electrode is indeed a very promising positive electrode for the development of high performance, advanced sodium batteries.
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