Pillar[5]quinone–carbon nanocomposites as high-capacity cathodes for sodium-ion batteries
New organic cathodes to replace inorganic materials for the capacity enhancement of sodium-ion batteries (SIBs) are highly desirable. In this research, we described the investigation of pillar[5]quinone (P5Q), which we determined to have a theoretical capacity of 446 mAh g-1, a value that makes it a...
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| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/144064 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | New organic cathodes to replace inorganic materials for the capacity enhancement of sodium-ion batteries (SIBs) are highly desirable. In this research, we described the investigation of pillar[5]quinone (P5Q), which we determined to have a theoretical capacity of 446 mAh g-1, a value that makes it a very promising candidate as a cathode in rechargeable batteries. Inspired by this value, P5Q was encapsulated into CMK-3 to form a composite, and then integrated with sin-gle-walled carbon nanotubes (SWCNTs) to generate a film that was used as the cathode in SIBs. The as-assembled SIBs showed an initial capacity up to 418 mAh g-1and maintained 290 mAh g-1after 300 cycles at 0.1 C. Even at 1 C, the capaci-ty could still reach 201 mAh g-1. |
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