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Carbon Electrodes for K-Ion Batteries
Abstract
We for the first time report electrochemical potassium insertion in graphite in a nonaqueous electrolyte, which can exhibit a high reversible capacity of 273 mAh/g. Ex situ XRD studies confirm that KC36, KC24, and KC8 sequentially form upon potassiation, whereas depotassiation recovers graphite through phase transformations in an opposite sequence. Graphite shows moderate rate capability and relatively fast capacity fading. To improve the performance of carbon K-ion anodes, we synthesized a nongraphitic soft carbon that exhibits cyclability and rate capability much superior to that of graphite. This work may open up a new paradigm toward rechargeable K-ion batteries.
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Citations
Cited by
Placke, T., Kloepsch, R., Dühnen, S., & Winter, M. (2017) · Journal of Solid State Electrochemistry · doi:10.1007/s10008-017-3610-7 · Cited by 1,117
Graphitic Carbon Nanocage as a Stable and High Power Anode for Potassium‐Ion Batteries
Cao, B., Zhang, Q., Liu, H., Xu, B., Zhang, S., Zhou, T., Mao, J., Pang, W. K., Guo, Z., Li, A., et al. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201801149 · Cited by 561
Understanding High-Energy-Density Sn4P3 Anodes for Potassium-Ion Batteries
Zhang, W., Pang, W. K., Sencadas, V., & Guo, Z. (2018) · Joule · doi:10.1016/j.joule.2018.04.022 · Cited by 555
Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries
Xu, X., Xiong, F., Meng, J., Wang, X., Niu, C., An, Q., & Mai, L. (2020) · Advanced Functional Materials · doi:10.1002/adfm.201904398 · Cited by 482
Revealing the Intercalation Mechanisms of Lithium, Sodium, and Potassium in Hard Carbon
Alvin, S., Cahyadi, H. S., Hwang, J., Chang, W., Kwak, S. K., & Kim, J. (2020) · Advanced Energy Materials · doi:10.1002/aenm.202000283 · Cited by 452
Metadata
- Authors
- Jian, Z., Luo, W., & Ji, X.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-09-03
- Volume
- 137
- Issue
- 36
- Pages
- 11566-11569
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1224571190
- Cited by
- 1,866
- References
- 0
- FWCI
- 48.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- Jian, Z., Luo, W., & Ji, X. (2015). Carbon Electrodes for K-Ion Batteries. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.5b06809
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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