High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry
Vanadium-based materials are promising cathode materials for aqueous rechargeable zinc-ion batteries (ZIBs). However, up to now, the detailed Zn ion intercalation mechanisms are still not fully clear. In this work, we first show a new facile synthesis approach for V3O7·H2O nanoarray cathode with lar...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/151913 |
| _version_ | 1824454694199623680 |
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| author | Chen, Duo Lu, Menjie Wang, Boran Cheng, Hongfei Yang, Hang Cai, Dong Han, Wei Fan, Hong Jin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Chen, Duo Lu, Menjie Wang, Boran Cheng, Hongfei Yang, Hang Cai, Dong Han, Wei Fan, Hong Jin |
| author_sort | Chen, Duo |
| collection | NTU |
| description | Vanadium-based materials are promising cathode materials for aqueous rechargeable zinc-ion batteries (ZIBs). However, up to now, the detailed Zn ion intercalation mechanisms are still not fully clear. In this work, we first show a new facile synthesis approach for V3O7·H2O nanoarray cathode with large mass loadings (1.0–12 mg cm−2). An empirical model is proposed to assess the utilization ratio of active materials under different mass loadings. Then, through the combination of first-principles calculations and a series of ex-situ characterizations, we identify for the first time a two-step Zn2+ intercalation mechanism in V3O7·H2O. The stepwise and reversible intercalation process is manifested by different diffusion energy barriers and segmented electrochemical kinetics in various discharge depths. The nanoarray binder-free electrode is also applied in pouch cells which show high capacities than state-of-the-art ZIB pouch cells. This study may provide an elucidation for the disputed Zn2+ intercalation chemistry of vanadium-based cathodes in ZIBs as well as a guidance to the design of high-mass-loading battery materials. |
| first_indexed | 2025-02-19T03:26:23Z |
| format | Journal Article |
| id | ntu-10356/151913 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:26:23Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1519132023-02-28T19:21:13Z High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry Chen, Duo Lu, Menjie Wang, Boran Cheng, Hongfei Yang, Hang Cai, Dong Han, Wei Fan, Hong Jin School of Physical and Mathematical Sciences Engineering::Materials::Functional materials Zinc-ion Battery Zn Ion Intercalation Vanadium-based materials are promising cathode materials for aqueous rechargeable zinc-ion batteries (ZIBs). However, up to now, the detailed Zn ion intercalation mechanisms are still not fully clear. In this work, we first show a new facile synthesis approach for V3O7·H2O nanoarray cathode with large mass loadings (1.0–12 mg cm−2). An empirical model is proposed to assess the utilization ratio of active materials under different mass loadings. Then, through the combination of first-principles calculations and a series of ex-situ characterizations, we identify for the first time a two-step Zn2+ intercalation mechanism in V3O7·H2O. The stepwise and reversible intercalation process is manifested by different diffusion energy barriers and segmented electrochemical kinetics in various discharge depths. The nanoarray binder-free electrode is also applied in pouch cells which show high capacities than state-of-the-art ZIB pouch cells. This study may provide an elucidation for the disputed Zn2+ intercalation chemistry of vanadium-based cathodes in ZIBs as well as a guidance to the design of high-mass-loading battery materials. Ministry of Education (MOE) Accepted version 2021-07-12T06:06:11Z 2021-07-12T06:06:11Z 2021 Journal Article Chen, D., Lu, M., Wang, B., Cheng, H., Yang, H., Cai, D., Han, W. & Fan, H. J. (2021). High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry. Nano Energy, 83, 105835-. https://dx.doi.org/10.1016/j.nanoen.2021.105835 2211-2855 https://hdl.handle.net/10356/151913 10.1016/j.nanoen.2021.105835 2-s2.0-85100388962 83 105835 en Nano Energy © 2021 Elsevier. All rights reserved. This paper was published in Nano Energy and is made available with permission of Elsevier. application/pdf |
| spellingShingle | Engineering::Materials::Functional materials Zinc-ion Battery Zn Ion Intercalation Chen, Duo Lu, Menjie Wang, Boran Cheng, Hongfei Yang, Hang Cai, Dong Han, Wei Fan, Hong Jin High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry |
| title | High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry |
| title_full | High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry |
| title_fullStr | High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry |
| title_full_unstemmed | High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry |
| title_short | High-mass loading V3O7·H2O nanoarray for Zn-ion battery : new synthesis and two-stage ion intercalation chemistry |
| title_sort | high mass loading v3o7·h2o nanoarray for zn ion battery new synthesis and two stage ion intercalation chemistry |
| topic | Engineering::Materials::Functional materials Zinc-ion Battery Zn Ion Intercalation |
| url | https://hdl.handle.net/10356/151913 |
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