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Micron-Sized $SiO_{x}$-Graphite Compound as Anode Materials for Commercializable Lithium-Ion Batteries
| Content Provider | MDPI |
|---|---|
| Author | Jo, Minki Sim, Soojin Kim, Juhyeong Oh, Pilgun Son, Yoonkook |
| Copyright Year | 2022 |
| Description | The electrode concept of graphite and silicon blending has recently been utilized as the anode in the current lithium-ion batteries (LIBs) industry, accompanying trials of improvement of cycling life in the commercial levels of electrode conditions, such as the areal capacity of approximately 3.3 $mAh/cm^{2}$ and volumetric capacity of approximately 570 $mAh/cm^{3}$. However, the blending concept has not been widely explored in the academic reports, which focused mainly on how much volume expansion of electrodes could be mitigated. Moreover, the limitations of the blending electrodes have not been studied in detail. Therefore, herein we investigate the graphite blending electrode with micron-sized $SiO_{x}$ anode material which is one of the most broadly used Si anode materials in the industry, to approach the commercial and practical view. Compared to the silicon micron particle blending electrode, the $SiO_{x}$ blending electrode showed superior cycling performance in the full cell test. To elucidate the cause of the relatively less degradation of the $SiO_{x}$ blending electrode as the cycling progressed in full-cell, the electrode level expansion and the solid electrolyte interphase (SEI) thickening were analyzed with various techniques, such as SEM, TEM, XPS, and STEM-EDS. We believe that this work will reveal the electrochemical insight of practical $SiO_{x}$-graphite electrodes and offer the key factors to reducing the gap between industry and academic demands for the next anode materials. |
| Starting Page | 1956 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano12121956 |
| Journal | Nanomaterials |
| Issue Number | 12 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-06-07 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Industrial Engineering Siox Siox-graphite Compound Anode Materials Lithium-ion Batteries |
| Content Type | Text |
| Resource Type | Article |
