Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteries
Abstract Hard carbon materials are characterized by having rich resources, simple processing technology, and low cost, and they are promising as one of the anode electrodes for commercial applications of sodium‐/potassium‐ion batteries. Simultaneously, exploring the alkali metal ion storage mechanis...
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Wiley
2021-08-01
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Series: | Carbon Energy |
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Online Access: | https://doi.org/10.1002/cey2.111 |
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author | Ziyi Zhu Wentao Zhong Yanjia Zhang Peng Dong Shigang Sun Yingjie Zhang Xue Li |
author_facet | Ziyi Zhu Wentao Zhong Yanjia Zhang Peng Dong Shigang Sun Yingjie Zhang Xue Li |
author_sort | Ziyi Zhu |
collection | DOAJ |
description | Abstract Hard carbon materials are characterized by having rich resources, simple processing technology, and low cost, and they are promising as one of the anode electrodes for commercial applications of sodium‐/potassium‐ion batteries. Simultaneously, exploring the alkali metal ion storage mechanism is particularly important for designing high‐performance electrode materials. However, the structure of hard carbon is more complex, and the description of energy storage behavior is quite controversial. In this study, the Magnolia grandiflora Lima leaf is used as a precursor, combined with simple pyrolysis and impurity removal processes, to obtain biomass‐derived hard carbon material (carbonized Magnolia grandiflora Lima leaf [CMGL]). When it is used as an anode for sodium‐ion batteries, it exhibits a high specific capacity of 315 mAh/g, and the capacity retention rate is 90.0% after 100 cycles. For potassium‐ion batteries, the charge specific capacity is 263.5 mAh/g, with a capacity retention rate of 85.5% at the same cycling. Furthermore, different electrochemical analysis methods and microstructure characterization techniques were used to further elucidate the sodium/potassium storage mechanism of the material. All the results indicate that the high potential slope region represents the adsorption/desorption characteristics on the surface active sites, whereas the low‐potential quasiplateau region belongs to the ion insertion/extraction in the graphitic microcrystallites interlayer. It is noteworthy that potassium ion is randomly intercalated between the graphitic microcrystallite layer without forming a segmented intercalation compound structure. |
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issn | 2637-9368 |
language | English |
last_indexed | 2024-12-14T17:37:00Z |
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spelling | doaj.art-9834402648d4477d9d21dbccd17ad50e2022-12-21T22:52:57ZengWileyCarbon Energy2637-93682021-08-013454155310.1002/cey2.111Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteriesZiyi Zhu0Wentao Zhong1Yanjia Zhang2Peng Dong3Shigang Sun4Yingjie Zhang5Xue Li6National and Local Joint Engineering Laboratory for Lithium‐Ion Batteries and Materials Fabrication Technology, Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming Yunnan ChinaSchool of Environment and Energy South China University of Technology Guangzhou Guangdong ChinaDepartment of Chemistry and Life Science Yokohama National University Yokohama Kanagawa JapanNational and Local Joint Engineering Laboratory for Lithium‐Ion Batteries and Materials Fabrication Technology, Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming Yunnan ChinaState Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering Xiamen University Xiamen Fujian ChinaNational and Local Joint Engineering Laboratory for Lithium‐Ion Batteries and Materials Fabrication Technology, Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming Yunnan ChinaNational and Local Joint Engineering Laboratory for Lithium‐Ion Batteries and Materials Fabrication Technology, Faculty of Metallurgical and Energy Engineering Kunming University of Science and Technology Kunming Yunnan ChinaAbstract Hard carbon materials are characterized by having rich resources, simple processing technology, and low cost, and they are promising as one of the anode electrodes for commercial applications of sodium‐/potassium‐ion batteries. Simultaneously, exploring the alkali metal ion storage mechanism is particularly important for designing high‐performance electrode materials. However, the structure of hard carbon is more complex, and the description of energy storage behavior is quite controversial. In this study, the Magnolia grandiflora Lima leaf is used as a precursor, combined with simple pyrolysis and impurity removal processes, to obtain biomass‐derived hard carbon material (carbonized Magnolia grandiflora Lima leaf [CMGL]). When it is used as an anode for sodium‐ion batteries, it exhibits a high specific capacity of 315 mAh/g, and the capacity retention rate is 90.0% after 100 cycles. For potassium‐ion batteries, the charge specific capacity is 263.5 mAh/g, with a capacity retention rate of 85.5% at the same cycling. Furthermore, different electrochemical analysis methods and microstructure characterization techniques were used to further elucidate the sodium/potassium storage mechanism of the material. All the results indicate that the high potential slope region represents the adsorption/desorption characteristics on the surface active sites, whereas the low‐potential quasiplateau region belongs to the ion insertion/extraction in the graphitic microcrystallites interlayer. It is noteworthy that potassium ion is randomly intercalated between the graphitic microcrystallite layer without forming a segmented intercalation compound structure.https://doi.org/10.1002/cey2.111biomassenergy storage mechanismshard carbonpotassium‐ion batteriessodium‐ion batteries |
spellingShingle | Ziyi Zhu Wentao Zhong Yanjia Zhang Peng Dong Shigang Sun Yingjie Zhang Xue Li Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteries Carbon Energy biomass energy storage mechanisms hard carbon potassium‐ion batteries sodium‐ion batteries |
title | Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteries |
title_full | Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteries |
title_fullStr | Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteries |
title_full_unstemmed | Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteries |
title_short | Elucidating electrochemical intercalation mechanisms of biomass‐derived hard carbon in sodium‐/potassium‐ion batteries |
title_sort | elucidating electrochemical intercalation mechanisms of biomass derived hard carbon in sodium potassium ion batteries |
topic | biomass energy storage mechanisms hard carbon potassium‐ion batteries sodium‐ion batteries |
url | https://doi.org/10.1002/cey2.111 |
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