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The electrochemical properties of copper sulfide as cathode material for rechargeable sodium cell at room temperature
- Authors
- Kim, Jong-Seon; Kim, Dong-Yeon; Cho, Gyu-Bong; Nam, Tae-Hyun; Kim, Ki-Won; Ryu, Ho-Suk; Ahn, Jou-Hyeon; Ahn, Hyo-Jun
- Issue Date
- 1-Apr-2009
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Copper sulfide; Sodium anode; Sodium rechargeable battery; Na/Cu2S
- Citation
- JOURNAL OF POWER SOURCES, v.189, no.1, pp 864 - 868
- Pages
- 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POWER SOURCES
- Volume
- 189
- Number
- 1
- Start Page
- 864
- End Page
- 868
- ISSN
- 0378-7753
1873-2755
- Abstract
- The sodium/copper sulfide (Na/Cu2S) rechargeable batteries are investigated using 1 M NaCF3SO3-TEGDME liquid electrolyte at room temperature. The first discharge curve of Na/Cu2S cells shows a slope shape without plateaus potential region. The first discharge capacity is 294 mAh g(-1) and decreases to 220 mAh g(-1) after 20 cycles. The discharge process can be explained by intercalation ofsodium into Cu2S phase without phase separation of Cu2S. (C) 2008 Elsevier B.V. All rights reserved.
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