|
| “Top-Down” Method Derived Few-Layer Graphite as Cathode Material for High-Capacity Aluminum-Ion Battery |
| Author Name | Affiliation | E-mail | | LIU Dong-Hai | State Key Laboratory of Coal-Based Low-Carbon Energy, Langfang, Hebei 065001, China
ENN Research & Development Co., Ltd, Langfang, Hebei 065001, China | liudonghaic@enn.cn | | WANG Jun-Ming | State Key Laboratory of Coal-Based Low-Carbon Energy, Langfang, Hebei 065001, China
ENN Research & Development Co., Ltd, Langfang, Hebei 065001, China | | | FAN Wei-Chao | State Key Laboratory of Coal-Based Low-Carbon Energy, Langfang, Hebei 065001, China
ENN Research & Development Co., Ltd, Langfang, Hebei 065001, China | | | FANG Jin-Gang | State Key Laboratory of Coal-Based Low-Carbon Energy, Langfang, Hebei 065001, China
ENN Research & Development Co., Ltd, Langfang, Hebei 065001, China | | | ZHU Xiao-Jun | State Key Laboratory of Coal-Based Low-Carbon Energy, Langfang, Hebei 065001, China
ENN Research & Development Co., Ltd, Langfang, Hebei 065001, China | | | MENG Chui-Zhou | State Key Laboratory of Coal-Based Low-Carbon Energy, Langfang, Hebei 065001, China
ENN Research & Development Co., Ltd, Langfang, Hebei 065001, China
School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China | 2018108@hebut.edu.cn |
|
| Abstract: A novel easily-scalable "top-down" method was used to prepare graphite cathode materials with chara-cteristics of few layers, small size and defect-free, which further increases the embedding sites of ions and breaks the inherent capacity limitation of graphite, so as to improve the electrochemical performance of aluminum ion batteries. Scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffraction (XRD) were used to characterize the properties of graphite materials, indicating that the proposed "top-down" method is able to realize the stripping of graphite without destroying the structure and achieve effective control of the thickness and size of graphite layer by adjusting the ball milling time. Electrochemical test results showed that the discharge capacities of G-48 reached 93 mAh·g-1 under a current density of 3C and still retained 68 mAh·g-1 under a high current density of 10C with excellent cycling performance. In addition, the preparation process is simple and low cost, which provides a good foundation for promoting the commercial application of the high-capacity and long-life aluminum ion batteries. |
| Keywords: electrochemistry aluminum ion battery graphite cathode materials ball-milling top-down |
| Hits: 1472 |
| Download times: 701 |
| LIU Dong-Hai,WANG Jun-Ming,FAN Wei-Chao,FANG Jin-Gang,ZHU Xiao-Jun,MENG Chui-Zhou.“Top-Down” Method Derived Few-Layer Graphite as Cathode Material for High-Capacity Aluminum-Ion Battery[J].Chinese Journal of Inorganic Chemistry,2019,35(8):1411-1418. |
| View Full Text View/Add Comment Download reader |
|
|
|
|
|
|
|
|
