Cargando…
Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes
Rice husk is produced in a massive amount worldwide as a byproduct of rice cultivation. Rice husk contains approximately 20 wt% of mesoporous SiO(2). We produce mesoporous silicon (Si) by reducing the rice husk-originating SiO(2) using a magnesio-milling process. Taking advantage of meso-porosity an...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Singapore
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5603619/ https://www.ncbi.nlm.nih.gov/pubmed/28983451 http://dx.doi.org/10.1186/s40580-017-0118-x |
_version_ | 1783264737106067456 |
---|---|
author | Kim, Hye Jin Choi, Jin Hyeok Choi, Jang Wook |
author_facet | Kim, Hye Jin Choi, Jin Hyeok Choi, Jang Wook |
author_sort | Kim, Hye Jin |
collection | PubMed |
description | Rice husk is produced in a massive amount worldwide as a byproduct of rice cultivation. Rice husk contains approximately 20 wt% of mesoporous SiO(2). We produce mesoporous silicon (Si) by reducing the rice husk-originating SiO(2) 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. |
format | Online Article Text |
id | pubmed-5603619 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer Singapore |
record_format | MEDLINE/PubMed |
spelling | pubmed-56036192017-10-03 Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes Kim, Hye Jin Choi, Jin Hyeok Choi, Jang Wook Nano Converg Research Rice husk is produced in a massive amount worldwide as a byproduct of rice cultivation. Rice husk contains approximately 20 wt% of mesoporous SiO(2). We produce mesoporous silicon (Si) by reducing the rice husk-originating SiO(2) 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. Springer Singapore 2017-09-19 /pmc/articles/PMC5603619/ /pubmed/28983451 http://dx.doi.org/10.1186/s40580-017-0118-x Text en © Korea Nano Technology Research Society 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Research Kim, Hye Jin Choi, Jin Hyeok Choi, Jang Wook Rice husk-originating silicon–graphite composites for advanced lithium ion battery anodes |
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 | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5603619/ https://www.ncbi.nlm.nih.gov/pubmed/28983451 http://dx.doi.org/10.1186/s40580-017-0118-x |
work_keys_str_mv | AT kimhyejin ricehuskoriginatingsilicongraphitecompositesforadvancedlithiumionbatteryanodes AT choijinhyeok ricehuskoriginatingsilicongraphitecompositesforadvancedlithiumionbatteryanodes AT choijangwook ricehuskoriginatingsilicongraphitecompositesforadvancedlithiumionbatteryanodes |