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Germanium coated vertically-aligned multiwall carbon nanotubes as lithium-ion battery anodes
| Content Provider | Semantic Scholar |
|---|---|
| Author | Susantyoko, Rahmat A. Wang, Xinghui Sun, Leimeng Pey, Kin Leong Fitzgerald, Eugene A. Zhang, Qing |
| Copyright Year | 2014 |
| Abstract | Abstract The performance of polycrystalline and amorphous germanium (Ge) as anode active materials for lithium-ion batteries was studied systematically. Polycrystalline Ge on vertically-aligned multiwall carbon nanotube (MWCNT) arrays (MWCNT/c-Ge) and amorphous Ge on the arrays (MWCNT/a-Ge) were fabricated using a low pressure chemical vapor deposition system and a radio frequency sputtering system, respectively. The vertically-aligned MWCNT arrays were used as a platform to minimize pulverization problem. The MWCNT/a-Ge had a specific capacity of 1096.1 mA hg −1 at the rate of 162.4 mA g −1 at the 100th cycle. In comparison, the MWCNT/c-Ge only showed a specific capacity of 730.2 mA hg −1 at the rate of 162.4 mA g −1 at the 100th cycle. The MWCNT/a-Ge sample showed better performances as the MWCNT/a-Ge skipped the electrochemically-driven solid-state amorphization of crystalline Ge during the first lithiation. |
| Starting Page | 551 |
| Ending Page | 559 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.carbon.2014.05.060 |
| Volume Number | 77 |
| Alternate Webpage(s) | https://dr.ntu.edu.sg/bitstream/handle/10220/24125/accepted-manuscript-germanium-coated-vertically-aligned-multiwall-carbon-nanotubes-as-lithium-ion-battery-anodes.pdf?isAllowed=y&sequence=1 |
| Alternate Webpage(s) | https://dr.ntu.edu.sg/bitstream/handle/10220/24125/accepted-manuscript-germanium-coated-vertically-aligned-multiwall-carbon-nanotubes-as-lithium-ion-battery-anodes.pdf;jsessionid=39AB3CF76832A5612ED1F4D5CE1278E2?sequence=1 |
| Alternate Webpage(s) | https://dr.ntu.edu.sg/bitstream/handle/10220/24125/accepted-manuscript-germanium-coated-vertically-aligned-multiwall-carbon-nanotubes-as-lithium-ion-battery-anodes.pdf;jsessionid=0D891828074EE4D1EC8811446E6A3158?sequence=1 |
| Alternate Webpage(s) | https://doi.org/10.1016/j.carbon.2014.05.060 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |