Nanoconfinement of low-conductivity products in rechargeable sodium-air batteriesopen access
- Authors
- Kwak, Won-Jin; Chen, Zonghai; Yoon, Chong Seung; Lee, Joong-Kee; Amine, Khalil; Sun, Yang Kook
- Issue Date
- Mar-2015
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Na-air battery; Porous carbon material; Discharge product morphology; Size-confinement; Carbonate-based electrolyte
- Citation
- NANO ENERGY, v.12, pp.123 - 130
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO ENERGY
- Volume
- 12
- Start Page
- 123
- End Page
- 130
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/25625
- DOI
- 10.1016/j.nanoen.2014.11.057
- ISSN
- 2211-2855
- Abstract
- To alleviate the high polarization and short cycle lifetime of rechargeable Na-air batteries, ordered mesoporous carbon (OMC) was synthesized and evaluated as a nanostructured conductive matrix to host low-conductivity products generated during the discharge of Na-air batteries. The OMC had high specific surface area (1544 m(2)/g) and a narrow pore size (2.7 nm), with the voltage polarization of 1.5 V, lower than that of the commonly used Super P carbon black (-1.8 V). Although the carbonate-based electrolyte was decomposed to produce Na2CO3, the OMC cathode allowed reversible formation and decomposition of Na2CO3 and exhibited stable cycling behavior with low polarization for 20 cycles with a delivered capacity of 500 mAh/g at the current density of 100 mA/g.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 에너지공학과 > 1. Journal Articles
- 서울 공과대학 > 서울 신소재공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/25625)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.