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- Publisher Website: 10.1002/aenm.202101514
- Scopus: eid_2-s2.0-85113502308
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Article: High‐Energy SWCNT Cathode for Aqueous Al‐Ion Battery Boosted by Multi‐Ion Intercalation Chemistry
Title | High‐Energy SWCNT Cathode for Aqueous Al‐Ion Battery Boosted by Multi‐Ion Intercalation Chemistry |
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Authors | |
Keywords | aqueous Al-ion batteries Cl-assisted intercalation high-capacity cathodes multi-ion chemistry SWCNT cathodes |
Issue Date | 2021 |
Citation | Advanced Energy Materials, 2021, v. 11 n. 39, article no. 2101514 How to Cite? |
Abstract | The aqueous Al-ion battery has achieved great progress in recent years. It now shows comparable performance to that of even non-aqueous Al-ion batteries. However, it also shows relatively low energy output and there is limited general understanding of the mechanism behind this restriction to its practical application. Thus, the development of a high-performance cathode material is in great demand. Herein, a high-capacity single-walled carbon nanotube (SWCNT) is developed as a cathode for the water-in-salt electrolyte-based aqueous Al-ion battery, which provides an ultra-high specific capacity of 790 mAh g–1 (based on the mass of SWCNT) at a high current density of 5 A g–1 even after 1000 cycles. Moreover, the SWCNT/Al battery shows a complicated multi-ion intercalation mechanism, where AlCl4–, Cl–, Al3+, and H+ can function at the same time, improving the battery output. Beyond recently revealed H+ and metal ion co-intercalation, the Cl-assisted intercalation of Al3+ ions mechanism is also studied by experimental characterization and modeling for the first time, which significantly boosts the Al3+ storage capacity. This multi-ion intercalation mechanism combines the high-voltage anion deintercalation and the high-capacity cation intercalation, and thus, benefits the development and application of high-energy Al-ion batteries in the future. |
Persistent Identifier | http://hdl.handle.net/10722/315133 |
ISSN | 2023 Impact Factor: 24.4 2023 SCImago Journal Rankings: 8.748 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Pan, W | - |
dc.contributor.author | Zhao, Y | - |
dc.contributor.author | MAO, J | - |
dc.contributor.author | Wang, Y | - |
dc.contributor.author | ZHAO, X | - |
dc.contributor.author | LEONG, KW | - |
dc.contributor.author | LUO, S | - |
dc.contributor.author | Liu, X | - |
dc.contributor.author | Wang, H | - |
dc.contributor.author | Xuan, J | - |
dc.contributor.author | Yang, S | - |
dc.contributor.author | Chen, Y | - |
dc.contributor.author | Leung, YCD | - |
dc.date.accessioned | 2022-08-05T09:40:47Z | - |
dc.date.available | 2022-08-05T09:40:47Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Advanced Energy Materials, 2021, v. 11 n. 39, article no. 2101514 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | http://hdl.handle.net/10722/315133 | - |
dc.description.abstract | The aqueous Al-ion battery has achieved great progress in recent years. It now shows comparable performance to that of even non-aqueous Al-ion batteries. However, it also shows relatively low energy output and there is limited general understanding of the mechanism behind this restriction to its practical application. Thus, the development of a high-performance cathode material is in great demand. Herein, a high-capacity single-walled carbon nanotube (SWCNT) is developed as a cathode for the water-in-salt electrolyte-based aqueous Al-ion battery, which provides an ultra-high specific capacity of 790 mAh g–1 (based on the mass of SWCNT) at a high current density of 5 A g–1 even after 1000 cycles. Moreover, the SWCNT/Al battery shows a complicated multi-ion intercalation mechanism, where AlCl4–, Cl–, Al3+, and H+ can function at the same time, improving the battery output. Beyond recently revealed H+ and metal ion co-intercalation, the Cl-assisted intercalation of Al3+ ions mechanism is also studied by experimental characterization and modeling for the first time, which significantly boosts the Al3+ storage capacity. This multi-ion intercalation mechanism combines the high-voltage anion deintercalation and the high-capacity cation intercalation, and thus, benefits the development and application of high-energy Al-ion batteries in the future. | - |
dc.language | eng | - |
dc.relation.ispartof | Advanced Energy Materials | - |
dc.subject | aqueous Al-ion batteries | - |
dc.subject | Cl-assisted intercalation | - |
dc.subject | high-capacity cathodes | - |
dc.subject | multi-ion chemistry | - |
dc.subject | SWCNT cathodes | - |
dc.title | High‐Energy SWCNT Cathode for Aqueous Al‐Ion Battery Boosted by Multi‐Ion Intercalation Chemistry | - |
dc.type | Article | - |
dc.identifier.email | Chen, Y: yuechen@hku.hk | - |
dc.identifier.email | Leung, YCD: ycleung@hku.hk | - |
dc.identifier.authority | Chen, Y=rp01925 | - |
dc.identifier.authority | Leung, YCD=rp00149 | - |
dc.identifier.doi | 10.1002/aenm.202101514 | - |
dc.identifier.scopus | eid_2-s2.0-85113502308 | - |
dc.identifier.hkuros | 334977 | - |
dc.identifier.volume | 11 | - |
dc.identifier.issue | 39 | - |
dc.identifier.spage | article no. 2101514 | - |
dc.identifier.epage | article no. 2101514 | - |
dc.identifier.isi | WOS:000689458900001 | - |