The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Controlled Prelithiation of Silicon Monoxide for High Performance Lithium-Ion Rechargeable Full Cells
Abstract
Despite the recent considerable progress, the reversibility and cycle life of silicon anodes in lithium-ion batteries are yet to be improved further to meet the commercial standards. The current major industry, instead, adopts silicon monoxide (SiOx, x ≈ 1), as this phase can accommodate the volume change of embedded Si nanodomains via the silicon oxide matrix. However, the poor Coulombic efficiencies (CEs) in the early period of cycling limit the content of SiOx, usually below 10 wt % in a composite electrode with graphite. Here, we introduce a scalable but delicate prelithiation scheme based on electrical shorting with lithium metal foil. The accurate shorting time and voltage monitoring allow a fine-tuning on the degree of prelithiation without lithium plating, to a level that the CEs in the first three cycles reach 94.9%, 95.7%, and 97.2%. The excellent reversibility enables robust full-cell operations in pairing with an emerging nickel-rich layered cathode, Li[Ni0.8Co0.15Al0.05]O2, even at a commercial level of initial areal capacity of 2.4 mAh cm(-2), leading to a full cell energy density 1.5-times as high as that of graphite-LiCoO2 counterpart in terms of the active material weight.
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Citations
Cites
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Self-citationDesigning nanostructured Si anodes for high energy lithium ion batteries
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Cited by
The emerging era of supramolecular polymeric binders in silicon anodes
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Self-citationResearch progress on silicon/carbon composite anode materials for lithium-ion battery
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Metadata
- Authors
- Kim, H. J., Choi, S., Lee, S. J., Seo, M. W., Lee, J. G., Deniz, E., Lee, Y. J., Kim, E. K., & Choi, J. W.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-12-24
- Volume
- 16
- Issue
- 1
- Pages
- 282-288
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2203169036
- Cited by
- 549
- References
- 29
- FWCI
- 15.08
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kim, H. J., Choi, S., Lee, S. J., Seo, M. W., Lee, J. G., Deniz, E., Lee, Y. J., Kim, E. K., & Choi, J. W. (2016). Controlled Prelithiation of Silicon Monoxide for High Performance Lithium-Ion Rechargeable Full Cells. Nano Letters. https://doi.org/10.1021/acs.nanolett.5b03776
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