The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
Interconnected Silicon Hollow Nanospheres for Lithium-Ion Battery Anodes with Long Cycle Life
Abstract
Silicon is a promising candidate for the anode material in lithium-ion batteries due to its high theoretical specific capacity. However, volume changes during cycling cause pulverization and capacity fade, and improving cycle life is a major research challenge. Here, we report a novel interconnected Si hollow nanosphere electrode that is capable of accommodating large volume changes without pulverization during cycling. We achieved the high initial discharge capacity of 2725 mAh g(-1) with less than 8% capacity degradation every hundred cycles for 700 total cycles. Si hollow sphere electrodes also show a Coulombic efficiency of 99.5% in later cycles. Superior rate capability is demonstrated and attributed to fast lithium diffusion in the interconnected Si hollow structure.
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Self-citation
Metadata
- Authors
- Yao, Y., McDowell, M. T., Ryu, I., Wu, H., Liu, N., Hu, L., Nix, W. D., & Cui, Y.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-06-14
- Volume
- 11
- Issue
- 7
- Pages
- 2949-2954
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2001613536
- Cited by
- 1,456
- References
- 28
- FWCI
- 71.08
- Type
- journal article
- Language
- en
- Open access
- closed
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