Carbon-coated Si/Graphite/AlN Composites as Anode Materials for Lithium Ion Batteries
碩士 === 中華技術學院 === 機電光工程研究所碩士班 === 95 === Abstract Silicon/ graphite/aluminum nitride (AlN) composites with different precursor atomic ratio mixed proportion for anode materials of Li-ion battery. The silicon/graphite/AlN composites with different proportions of weight separately and coating 40 wt.%...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2007
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/32608688483963872725 |
| Summary: | 碩士 === 中華技術學院 === 機電光工程研究所碩士班 === 95 === Abstract
Silicon/ graphite/aluminum nitride (AlN) composites with different precursor atomic ratio mixed proportion for anode materials of Li-ion battery. The silicon/graphite/AlN composites with different proportions of weight separately and coating 40 wt.% furan resin after milling in 8 hours are measured with charge and discharge test. The inactive AlN working as a buffer matrix successfully prevents silicon large volume change during charge and discharge electrochemical test. The composites show excellent cycling performance with a reasonable value of the first irreversible capacity to 10%. The capacity is retained about 700mAh/g after 5cycles.
Depending on Raman spectroscopy, XRD and SEM analysis, it is found that the silicon/graphite/AlN composites are mixed through milling. The first irreversibility will obviously be reduced. The capacity decade of carbon-coated silicon composites with furan resin will be comparatively steady and the circulation stability will be also improved.
|
|---|