Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion Batteries
A facile and scalable method is reported to fabricate Si-graphene nanocomposite as anode material for Li-ion batteries (LIBs) with high capacity and capacity retention performance. The Si-graphene electrode showed an initial discharge capacity of 1307 mAh g<sup>−1</sup> at a current rate...
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MDPI AG
2022-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/21/10926 |
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| author | Ding Lou Shuyi Chen Strauss Langrud Amir Abdul Razzaq Mingyang Mao Hammad Younes Weibing Xing Tim Lin Haiping Hong |
| author_facet | Ding Lou Shuyi Chen Strauss Langrud Amir Abdul Razzaq Mingyang Mao Hammad Younes Weibing Xing Tim Lin Haiping Hong |
| author_sort | Ding Lou |
| collection | DOAJ |
| description | A facile and scalable method is reported to fabricate Si-graphene nanocomposite as anode material for Li-ion batteries (LIBs) with high capacity and capacity retention performance. The Si-graphene electrode showed an initial discharge capacity of 1307 mAh g<sup>−1</sup> at a current rate of 0.1C. At the 25th cycle, the electrode retained a discharge capacity of 1270 mAh g<sup>−1</sup>, with an excellent capacity retention of 97%. At the 50th cycle, the electrode still retained high capacity retention of 89%. The improved capacity retention of Si-graphene anode compared with Si anode is attributed to the mechanical flexibility of graphene that compromises the volume expansion of Si during the lithiation/delithiation process. The electrochemical impedance measurement further confirms the enhanced electrical conductivity and the denser solid-electrolyte-interface of the Si-graphene electrode. This fabrication approach is cost-effective and easy to scale up compared to known techniques, making it a promising candidate for commercializing Si-based anode for LIBs. |
| first_indexed | 2024-03-09T19:17:55Z |
| format | Article |
| id | doaj.art-392d1e340d68408e830f70d7036be736 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T19:17:55Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-392d1e340d68408e830f70d7036be7362023-11-24T03:35:10ZengMDPI AGApplied Sciences2076-34172022-10-0112211092610.3390/app122110926Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion BatteriesDing Lou0Shuyi Chen1Strauss Langrud2Amir Abdul Razzaq3Mingyang Mao4Hammad Younes5Weibing Xing6Tim Lin7Haiping Hong8Department of Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USASolid Energies, Inc., 985 E Orangefair Ln, Anaheim, CA 92801, USAThe Energy Storage Lab, Department of Mechanical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USAThe Energy Storage Lab, Department of Mechanical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USADepartment of Nanoscience and Nanoengineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USADepartment of Electrical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USAThe Energy Storage Lab, Department of Mechanical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USASolid Energies, Inc., 985 E Orangefair Ln, Anaheim, CA 92801, USADepartment of Electrical Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701, USAA facile and scalable method is reported to fabricate Si-graphene nanocomposite as anode material for Li-ion batteries (LIBs) with high capacity and capacity retention performance. The Si-graphene electrode showed an initial discharge capacity of 1307 mAh g<sup>−1</sup> at a current rate of 0.1C. At the 25th cycle, the electrode retained a discharge capacity of 1270 mAh g<sup>−1</sup>, with an excellent capacity retention of 97%. At the 50th cycle, the electrode still retained high capacity retention of 89%. The improved capacity retention of Si-graphene anode compared with Si anode is attributed to the mechanical flexibility of graphene that compromises the volume expansion of Si during the lithiation/delithiation process. The electrochemical impedance measurement further confirms the enhanced electrical conductivity and the denser solid-electrolyte-interface of the Si-graphene electrode. This fabrication approach is cost-effective and easy to scale up compared to known techniques, making it a promising candidate for commercializing Si-based anode for LIBs.https://www.mdpi.com/2076-3417/12/21/10926Si-graphene electrodeLi-ion batteriesanodescalable |
| spellingShingle | Ding Lou Shuyi Chen Strauss Langrud Amir Abdul Razzaq Mingyang Mao Hammad Younes Weibing Xing Tim Lin Haiping Hong Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion Batteries Applied Sciences Si-graphene electrode Li-ion batteries anode scalable |
| title | Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion Batteries |
| title_full | Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion Batteries |
| title_fullStr | Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion Batteries |
| title_full_unstemmed | Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion Batteries |
| title_short | Scalable Fabrication of Si-Graphene Composite as Anode for Li-ion Batteries |
| title_sort | scalable fabrication of si graphene composite as anode for li ion batteries |
| topic | Si-graphene electrode Li-ion batteries anode scalable |
| url | https://www.mdpi.com/2076-3417/12/21/10926 |
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