Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes
Abstract Rice husk is produced in a massive amount worldwide as a byproduct of rice cultivation. Rice husk contains approximately 20 wt% of mesoporous SiO2. We produce mesoporous silicon (Si) by reducing the rice husk-originating SiO2 using a magnesio-milling process. Taking advantage of meso-porosi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-09-01
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| Series: | Nano Convergence |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40580-017-0118-x |
| _version_ | 1818998460601335808 |
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| author | Hye Jin Kim Jin Hyeok Choi Jang Wook Choi |
| author_facet | Hye Jin Kim Jin Hyeok Choi Jang Wook Choi |
| author_sort | Hye Jin Kim |
| collection | DOAJ |
| description | Abstract Rice husk is produced in a massive amount worldwide as a byproduct of rice cultivation. Rice husk contains approximately 20 wt% of mesoporous SiO2. We produce mesoporous silicon (Si) by reducing the rice husk-originating SiO2 using a magnesio-milling process. Taking advantage of meso-porosity and large available quantity, we apply rice husk-originating Si to lithium ion battery anodes in a composite form with commercial graphite. By varying the mass ratio between these two components, trade-off relation between specific capacity and cycle life was observed. A controllable pre-lithiation scheme was adopted to increase the initial Coulombic efficiency and energy density. The series of electrochemical results suggest that rice husk-originating Si–graphite composites are promising candidates for high capacity lithium ion battery anodes, with the prominent advantages in battery performance and scalability. |
| first_indexed | 2024-12-20T22:01:53Z |
| format | Article |
| id | doaj.art-bca6be51459f4fed83991bf276c548ca |
| institution | Directory Open Access Journal |
| issn | 2196-5404 |
| language | English |
| last_indexed | 2024-12-20T22:01:53Z |
| publishDate | 2017-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano Convergence |
| spelling | doaj.art-bca6be51459f4fed83991bf276c548ca2022-12-21T19:25:21ZengSpringerOpenNano Convergence2196-54042017-09-01411610.1186/s40580-017-0118-xRice husk-originating silicon–graphite composites for advanced lithium ion battery anodesHye Jin Kim0Jin Hyeok Choi1Jang Wook Choi2Graduate School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST)Graduate School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST)Graduate School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology (KAIST)Abstract Rice husk is produced in a massive amount worldwide as a byproduct of rice cultivation. Rice husk contains approximately 20 wt% of mesoporous SiO2. We produce mesoporous silicon (Si) by reducing the rice husk-originating SiO2 using a magnesio-milling process. Taking advantage of meso-porosity and large available quantity, we apply rice husk-originating Si to lithium ion battery anodes in a composite form with commercial graphite. By varying the mass ratio between these two components, trade-off relation between specific capacity and cycle life was observed. A controllable pre-lithiation scheme was adopted to increase the initial Coulombic efficiency and energy density. The series of electrochemical results suggest that rice husk-originating Si–graphite composites are promising candidates for high capacity lithium ion battery anodes, with the prominent advantages in battery performance and scalability.http://link.springer.com/article/10.1186/s40580-017-0118-xLithium ion batteryMagnesio-milling reductionMeso-porosityRice huskSilicon anode |
| spellingShingle | Hye Jin Kim Jin Hyeok Choi Jang Wook Choi Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes Nano Convergence Lithium ion battery Magnesio-milling reduction Meso-porosity Rice husk Silicon anode |
| title | Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes |
| title_full | Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes |
| title_fullStr | Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes |
| title_full_unstemmed | Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes |
| title_short | Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes |
| title_sort | rice husk originating silicon graphite composites for advanced lithium ion battery anodes |
| topic | Lithium ion battery Magnesio-milling reduction Meso-porosity Rice husk Silicon anode |
| url | http://link.springer.com/article/10.1186/s40580-017-0118-x |
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