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Silicon nanoparticles embedded in a porous carbon matrix as a high-performance anode for lithium-ion batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wu, Lili Yang, Juan Zhou, Xiangyang Zhang, Manfang Ren, Yongpeng Nie, Yang |
| Copyright Year | 2016 |
| Abstract | Silicon-based anodes have recently received increased attention due to their high theoretical capacity. However, the Si-based anodes always suffer from a large volume change during cycling and require expensive and multistep processes to prepare nano-sized Si. In this work, Si nanoparticles are successfully embedded in a carbon matrix by using NaCl particles as a hard template, which were prepared through magnesiothermic reduction of SiO2 nanoparticles. Besides, NaCl particles also play an important role in absorbing the local heat accumulation generated from magnesiothermic reduction, thus preventing the agglomeration of Si particles and the formation of undesirable SiC. The as-prepared Si@PCM could not only provide fast electron diffusion through carbon networks, but also accommodate the stress–strain caused by the volume change. As a result, the Si@PCM composite demonstrates an excellent electrochemical performance as an anode material for lithium-ion batteries. |
| Starting Page | 11381 |
| Ending Page | 11387 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C6TA04398D |
| Volume Number | 4 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c6/ta/c6ta04398d/c6ta04398d1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
