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A Study to Explore the Suitability of $LiNi_{0.8}Co_{0.15}Al_{0.05}O_{2}$/Silicon@Graphite Cells for High-Power Lithium-Ion Batteries
| Content Provider | MDPI |
|---|---|
| Author | Leire, Caizán-Juananera Cabello, Marta Gucciardi, Emanuele Liendo, Guillermo Carriazo, Daniel Villaverde, Aitor |
| Copyright Year | 2021 |
| Description | Silicon–graphite (Si@G) anodes are receiving increasing attention because the incorporation of Si enables lithium-ion batteries to reach higher energy density. However, Si suffers from structure rupture due to huge volume changes (ca. 300%). The main challenge for silicon-based anodes is improving their long-term cyclabilities and enabling their charge at fast rates. In this work, we investigate the performance of Si@G composite anode, containing 30 wt.% Si, coupled with a $LiNi_{0.8}Co_{0.15}Al_{0.05}O_{2}$ (NCA) cathode in a pouch cell configuration. To the best of our knowledge, this is the first report on an NCA/Si@G pouch cell cycled at the 5C rate that delivers specific capacity values of 87 mAh $g^{−1}$. Several techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and gas chromatography–mass spectrometry (GC–MS) are used to elucidate whether the electrodes and electrolyte suffer irreversible damage when a high C-rate cycling regime is applied, revealing that, in this case, electrode and electrolyte degradation is negligible. |
| Starting Page | 10331 |
| e-ISSN | 14220067 |
| DOI | 10.3390/ijms221910331 |
| Journal | International Journal of Molecular Sciences |
| Issue Number | 19 |
| Volume Number | 22 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-09-25 |
| Access Restriction | Open |
| Subject Keyword | International Journal of Molecular Sciences Silicon Graphite Composites Lithium-ion Batteries High Power |
| Content Type | Text |
| Resource Type | Article |
