Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability
© 2018 The Electrochemical Society. Although rechargeable zinc-air batteries are one of the promising power sources, the commercialization is hindered by a variety of technical hurdles, especially the low energy efficiency and poor rate capability due to the low discharge voltage. Herein, we report...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
The Electrochemical Society, Inc
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/70979 |
| _version_ | 1848762356569473024 |
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| author | Tan, P. Chen, B. Xu, H. Cai, W. Liu, M. Shao, Zongping Ni, M. |
| author_facet | Tan, P. Chen, B. Xu, H. Cai, W. Liu, M. Shao, Zongping Ni, M. |
| author_sort | Tan, P. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2018 The Electrochemical Society. Although rechargeable zinc-air batteries are one of the promising power sources, the commercialization is hindered by a variety of technical hurdles, especially the low energy efficiency and poor rate capability due to the low discharge voltage. Herein, we report a high-performance composite composed of nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes. When used as the active material, unlike any single types of zinc-based batteries, the electrochemical reactions in both nickel-zinc and zinc-air batteries are combined. A high voltage of 1.7 V is obtained in the nickel-zinc battery region and a high capacity of over 800 mAh gZn-1 is demonstrated in the zinc-air battery region, attributed to the high pseudocapacitance and excellent activities of NiO/Ni(OH)2 nanoporous plates and the high electrical conductivity of carbon nanotubes. In addition, the battery can be cycled steadily for over 192 times at 5 mA cm-2 while maintaining the capacity at the energy efficiency of higher than 60%. Moreover, the discharge voltage profile and obtainable capacity remain unchanged even when the charge current density is increased by 8 times (from 2 to 16 mA cm-2), demonstrating excellent high-rate charge capability. The results shed light on further explorations of active materials for high-performance rechargeable hybrid batteries. |
| first_indexed | 2025-11-14T10:46:16Z |
| format | Journal Article |
| id | curtin-20.500.11937-70979 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:46:16Z |
| publishDate | 2018 |
| publisher | The Electrochemical Society, Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-709792020-06-15T02:30:54Z Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability Tan, P. Chen, B. Xu, H. Cai, W. Liu, M. Shao, Zongping Ni, M. © 2018 The Electrochemical Society. Although rechargeable zinc-air batteries are one of the promising power sources, the commercialization is hindered by a variety of technical hurdles, especially the low energy efficiency and poor rate capability due to the low discharge voltage. Herein, we report a high-performance composite composed of nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes. When used as the active material, unlike any single types of zinc-based batteries, the electrochemical reactions in both nickel-zinc and zinc-air batteries are combined. A high voltage of 1.7 V is obtained in the nickel-zinc battery region and a high capacity of over 800 mAh gZn-1 is demonstrated in the zinc-air battery region, attributed to the high pseudocapacitance and excellent activities of NiO/Ni(OH)2 nanoporous plates and the high electrical conductivity of carbon nanotubes. In addition, the battery can be cycled steadily for over 192 times at 5 mA cm-2 while maintaining the capacity at the energy efficiency of higher than 60%. Moreover, the discharge voltage profile and obtainable capacity remain unchanged even when the charge current density is increased by 8 times (from 2 to 16 mA cm-2), demonstrating excellent high-rate charge capability. The results shed light on further explorations of active materials for high-performance rechargeable hybrid batteries. 2018 Journal Article http://hdl.handle.net/20.500.11937/70979 10.1149/2.0481810jes The Electrochemical Society, Inc restricted |
| spellingShingle | Tan, P. Chen, B. Xu, H. Cai, W. Liu, M. Shao, Zongping Ni, M. Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability |
| title | Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability |
| title_full | Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability |
| title_fullStr | Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability |
| title_full_unstemmed | Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability |
| title_short | Nanoporous NiO/Ni(OH)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability |
| title_sort | nanoporous nio/ni(oh)2 plates incorporated with carbon nanotubes as active materials of rechargeable hybrid zinc batteries for improved energy efficiency and high-rate capability |
| url | http://hdl.handle.net/20.500.11937/70979 |