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| Biomass-birch sawdust columnar porous carbon self-assembled nano-silicon composite anode material |
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Received:March 27, 2022
Revised:March 27, 2022
Accepted:March 28, 2022
Published Online:August 17, 2022
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| DOI： |
| KeyWord:KOH activation; biomass porous carbon; Si/C composites; anode materials; lithium-ion batteries. |
| Author | Institution |
| wangqianwen |
Kunming University of Science and Technology |
| gaogeng |
Kunming University of Science and Technology |
| zhangkeyu |
Kunming University of Science and Technology |
| hujunxian |
Kunming University of Science and Technology |
| yaoyaochun |
Kunming University of Science and Technology |
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| Abstract: |
| In order to improve the low electrical conductivity of semiconductor silicon materials and alleviate the volume expansion, a three-dimensional columnar birch sawdust derived porous carbon material was constructed by KOH alkali activation etching method.The electrochemical measurement results showed that the pet wood derived columnar porous carbon composite loaded with silicon nanoparticles (20%) had a high lithium storage performance at the constant current density of 0.5A/g. The initial discharge capacity of this material was 1099.98mA/h, and the stable discharge capacity after 200 cycles was 1089.77mAh/g. This work provides a promising new idea for nuclear pore structure loaded silicon with high capacity at lithium-ion batteries. |
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