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Durable Carbon-Coated Li2S Core–Shell Spheres for High Performance Lithium/Sulfur Cells
Abstract
Lithium sulfide (Li2S) is an attractive cathode material with a high theoretical specific capacity (1166 mAh g(-1)). However, the poor cycle life and rate capability have remained significant challenges, preventing its practical application. Here, Li2S spheres with size control have been synthesized for the first time, and a CVD method for converting them into stable carbon-coated Li2S core-shell (Li2S@C) particles has been successfully employed. These Li2S@C particles with protective and conductive carbon shells show promising specific capacities and cycling performance with a high initial discharge capacity of 972 mAh g(-1) Li2S (1394 mAh g(-1) S) at the 0.2C rate. Even with no added carbon, a very high Li2S content (88 wt % Li2S) electrode composed of 98 wt % 1 μm Li2S@C spheres and 2 wt % binder shows rather stable cycling performance, and little morphology change after 400 cycles at the 0.5C rate.
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Citations
Cites
Li-O2 and Li-S batteries with high energy storage
Bruce, P. G., Freunberger, S. A., Hardwick, L. J., & Tarascon, J.-M. (2012) · Nature Materials · doi:10.1038/nmat3191 · Cited by 9,479
Cited by
He, J., Chen, Y., Lv, W., Wen, K., Xu, C., Zhang, W., Qin, W., & He, W. (2016) · ACS Energy Letters · doi:10.1021/acsenergylett.6b00272 · Cited by 172
Metadata
- Authors
- Nan, C., Lin, Z., Liao, H., Song, M.-K., Li, Y., & Cairns, E. J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-03-14
- Volume
- 136
- Issue
- 12
- Pages
- 4659-4663
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W4249504962
- Cited by
- 282
- References
- 1
- FWCI
- 22.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Durable Carbon-Coated Li2S Core–Shell Spheres for High Performance Lithium/Sulfur Cells. https://app.cochat.ai/papers/10.1021/ja412943h
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- Nan, C., Lin, Z., Liao, H., Song, M.-K., Li, Y., & Cairns, E. J. (2014). Durable Carbon-Coated Li2S Core–Shell Spheres for High Performance Lithium/Sulfur Cells. Journal of the American Chemical Society. https://doi.org/10.1021/ja412943h
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