| Autor: |
Shengrong Cai, Ding Zhu, Yungui Chen, Xiaofei Wang |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
RSC Advances. 5:88485-88491 |
| ISSN: |
2046-2069 |
| DOI: |
10.1039/c5ra15206b |
| Popis: |
Pd nanoparticles were deposited onto carbon nanotubes (CNTs) via a simple wet chemical method and were employed to fabricate a highly efficient cathode for a Li–O2 battery using a solid-state air cathode. The results demonstrate that the introduced Pd catalyst showed promising catalytic activity, making the battery exhibit improved rate ability and excellent cycling performance. The fabricated CNTs@Pd electrode tended to induce the poorly crystalline Li2O2 to form preferentially in the solid-state air cathode, which could be decomposed at a lower potential in comparison to the Pd-free electrode. The Li–O2 battery using a solid-state CNTs@Pd electrode exhibited a long cycle life up to 50 cycles without capacity fading (capacity limit of 500 mA h g−1). The unique architecture of the CNTs@Pd electrode minimised the side reactions relating to carbon and the discharge product. Our results provide a snapshot toward developing a high performance solid-state Li–O2 battery. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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