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Ji, Shunping, Zheng, Yunshan, Hui, Kwan San 
ORCID: https://orcid.org/0000-0001-7089-7587, Li, Junfeng, Wang, Kaixi, Song, Chunyan, Xu, Huifang, Wang, Shuo, Zha, Chenyang, Dinh, Duc Anh, Tang, Zikang, Shao, Zongping and Nam Hui, Kwun
(2023)
Enhanced electrochemical and environmental stability of black phosphorus-derived phosphorus composite anode for safe potassium-ion battery using amorphous zinc phosphate as a multi-functional additive.
Energy Storage Materials, 57.
pp. 400-410.
ISSN 2405-8297
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Abstract
Black phosphorus (BP) presents high theoretical capacity as potassium-ion battery (PIB) anode, while low ionic/electronic conductivity for bulk phase and high volume expansion and extremely sensitivity to humid environment for its nanomaterial hinder its practical applications. Here, we propose BP nanocomposites with amorphous zinc phosphate to tackle above problems. The amorphous zinc phosphate plays multifunctional roles in weakening the agglomeration of BP nanomaterials, reducing the volume expansion and improving the environmental stability of BP nanocomposite electrodes in humid air. The optimized amorphous BP nanocomposite anode with 30wt% zinc phosphate, BP@C@ZPO(30), retains capacity of 369.0 mA h g–1 after 500 cycles at 0.5 A g–1 in a noninflammable triethyl phosphate (TEP) electrolyte, and the volume expansion rate of the BP@C@ZPO(30) electrode is reduced to 47% compared with BP@C@ZPO(0) electrode of 100%. More attractively, the amorphous zinc phosphate improves the environmental stability of the nanocomposite electrode in humid air dut to its features of strong and fast physical absorption to water. Consequently, the BP@C@ZPO(30) electrode delivers a reversible capacity of 629.2 mA h g–1 (200 cycles at 0.2 A g–1) even after exposing the electrode to humid air for two days. Such nanocompositing strategy may accelerate the practical application of phosphorus electrode.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding information: This work was funded by The Science and Technology Development Fund, Macau SAR (File no. 191/2017/A3, 041/2019/A1, 046/2019/AFJ, 0007/2021/AGJ), the Multi-Year Research Grants (MYRG2020-00187-IAPME, MYRG2022-00223-IAPME) from the Research Services and Knowledge Transfer Office at the University of Macau, and the UEA funding. |
| Uncontrolled Keywords: | amorphous phosphorus,amorphous zinc phosphate,bp,electrode environmental stability,pib,renewable energy, sustainability and the environment,materials science(all),energy engineering and power technology ,/dk/atira/pure/subjectarea/asjc/2100/2105 |
| Faculty \ School: | Faculty of Science > School of Engineering |
| UEA Research Groups: | Faculty of Science > Research Groups > Emerging Technologies for Electric Vehicles (EV) Faculty of Science > Research Groups > Energy Materials Laboratory |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 27 Jan 2023 15:30 |
| Last Modified: | 22 Jan 2024 01:38 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/90839 |
| DOI: | 10.1016/j.ensm.2023.01.036 |
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