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Revealing the closed pore formation of waste wood-derived hard carbon for advanced sodium-ion battery

Open access
Tang, Zheng, Zhang, Rui, Wang, Haiyan, Zhou, Siyu, Pan, Zhiyi, Huang, Yuancheng, Sun, Dan, Tang, Yougen, Ji, Xiaobo, Amine, Khalil, Shao, Minhua·2023·Nature Communications

Abstract

Although the closed pore structure plays a key role in contributing low-voltage plateau capacity of hard carbon anode for sodium-ion batteries, the formation mechanism of closed pores is still under debate. Here, we employ waste wood-derived hard carbon as a template to systematically establish the formation mechanisms of closed pores and their effect on sodium storage performance. We find that the high crystallinity cellulose in nature wood decomposes to long-range carbon layers as the wall of closed pore, and the amorphous component can hinder the graphitization of carbon layer and induce the crispation of long-range carbon layers. The optimized sample demonstrates a high reversible capacity of 430 mAh g−1 at 20 mA g−1 (plateau capacity of 293 mAh g−1 for the second cycle), as well as good rate and stable cycling performances (85.4% after 400 cycles at 500 mA g−1). Deep insights into the closed pore formation will greatly forward the rational design of hard carbon anode with high capacity.

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Metadata

Authors
Tang, Z., Zhang, R., Wang, H., Zhou, S., Pan, Z., Huang, Y., Sun, D., Tang, Y., Ji, X., Amine, K., & Shao, M.
Venue
Nature Communications
Published
2023-09-27
Volume
14
Issue
1
Pages
6024-6024
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4387098915
Cited by
846
References
32
FWCI
62.01
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Revealing the closed pore formation of waste wood-derived hard carbon for advanced sodium-ion battery. https://app.cochat.ai/papers/10.1038/s41467-023-39637-5
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Tang, Z., Zhang, R., Wang, H., Zhou, S., Pan, Z., Huang, Y., Sun, D., Tang, Y., Ji, X., Amine, K., & Shao, M. (2023). Revealing the closed pore formation of waste wood-derived hard carbon for advanced sodium-ion battery. Nature Communications. https://doi.org/10.1038/s41467-023-39637-5

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