引用本文:
Feng Wu, Sheng Xian Wu, Ren Jie Chen, Shi Chen, Guo Qing Wang. Electrochemical performance of sulfur composite cathode materials for rechargeable lithium batteries[J]. Chinese Chemical Letters,
2009, 20(10): 1255-1258.
doi:
10.1016/j.cclet.2009.04.036
Citation: Feng Wu, Sheng Xian Wu, Ren Jie Chen, Shi Chen, Guo Qing Wang. Electrochemical performance of sulfur composite cathode materials for rechargeable lithium batteries[J]. Chinese Chemical Letters, 2009, 20(10): 1255-1258. doi: 10.1016/j.cclet.2009.04.036
Citation: Feng Wu, Sheng Xian Wu, Ren Jie Chen, Shi Chen, Guo Qing Wang. Electrochemical performance of sulfur composite cathode materials for rechargeable lithium batteries[J]. Chinese Chemical Letters, 2009, 20(10): 1255-1258. doi: 10.1016/j.cclet.2009.04.036
Electrochemical performance of sulfur composite cathode materials for rechargeable lithium batteries
摘要:
The structure and characteristic of carbon materials have a direct influence on the electrochemical performance of sulfur-carbon composite eleceof elemental sulfur and activated carbon, which is characterized as high specific surface area and microporous structure.The composite, contained 70% sulfur, as cathode in a lithium cell based on organic liquid electrolyte was tested at room temperature.It showed two reduction peaks at 2.05 V and 2.35 V, one oxidation peak at 2.4 V during cyclic voltammogram test.The initial discharge specific capacity was 1180.8 mAh g -1 and the utilization of electrochemically active sulfur was about 70.6% assuming a complete reaction to the product of Li 2S.The specific capacity still kept as high as 720.4 mAh g-1after 60 cycles retaining 61% of the initial discharge capacity.
English
Electrochemical performance of sulfur composite cathode materials for rechargeable lithium batteries
Abstract:
The structure and characteristic of carbon materials have a direct influence on the electrochemical performance of sulfur-carbon composite eleceof elemental sulfur and activated carbon, which is characterized as high specific surface area and microporous structure.The composite, contained 70% sulfur, as cathode in a lithium cell based on organic liquid electrolyte was tested at room temperature.It showed two reduction peaks at 2.05 V and 2.35 V, one oxidation peak at 2.4 V during cyclic voltammogram test.The initial discharge specific capacity was 1180.8 mAh g -1 and the utilization of electrochemically active sulfur was about 70.6% assuming a complete reaction to the product of Li 2S.The specific capacity still kept as high as 720.4 mAh g-1after 60 cycles retaining 61% of the initial discharge capacity.
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Key words:
- Sulfur composite
- / Cathode materials
- / Activated carbon
- / Electrochemical performance
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