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Improving the electrical performance of Lithium-ion battery using SilicaCarbon anode through technique
  • +5
  • Loan Phung Le,
  • Xuan My Nguyen,
  • Kha Le,
  • Quan Phung,
  • Duc Truong,
  • Hoang Nguyen,
  • Quynh Nguyen,
  • Man Tran
Loan Phung Le
Vietnam National University Ho Chi Minh City University of Science

Corresponding Author:lmlphung@hcmus.edu.vn

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Xuan My Nguyen
Vietnam National University Ho Chi Minh City University of Science
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Kha Le
Vietnam National University Ho Chi Minh City University of Science
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Quan Phung
Vietnam National University Ho Chi Minh City University of Science
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Duc Truong
Battery Cell Institute
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Hoang Nguyen
Vietnam National University Ho Chi Minh City University of Science
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Quynh Nguyen
Vietnam National University Ho Chi Minh City University of Science
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Man Tran
Vietnam National University Ho Chi Minh City University of Science
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Abstract

Nowadays, a hybrid composite SiO2/C has been paid attention to improving battery performance in Li-ion batteries (LIBs) as the anode. However, this material unexpectedly suffers from initial active lithium loss caused by the solid electrolyte interface (SEI) formation leading to low initial Coulombic efficiency and significantly reducing the initial capacity. In order to solve these issues, pre-lithiation has been considered an effective approach to limit active lithium loss and increase cycling performance. This work focuses on the two most common techniques, including the direct contact method (CM) and the electrochemical method in half-cell (EM). After the pre-lithiation process, the anodes would be evaluated in full-cell with LiNi0.6Mn0.2Co0.2O2 (NMC622) cathode. According to electrochemical properties evaluations, pre-lithiation could enhance discharged capacity and initial coulombic efficiency. Without the pre-lithiation method, the discharged capacity in full-cell only witnessed 66.9 mAh.g-1, while CM and EM methods illustrated a better battery performance. In detail, EM exhibited a higher discharged capacity and initial coulombic efficiency (137.06 mAh.g-1 and 99.08%, respectively) compared to CM (99.08 mAh.g-1 and 93.23%) method. Besides, the capacity retention using EM achieved 71.4% and the discharged capacity illustrated 97.87 mAh.g-1 after 100 cycles, which is better than using CM, which only showed 71.40 mAh.g-1.
24 Jan 2023Submitted to Battery Energy
27 Jan 2023Submission Checks Completed
27 Jan 2023Assigned to Editor
27 Jan 2023Review(s) Completed, Editorial Evaluation Pending
30 Jan 2023Reviewer(s) Assigned
20 Feb 2023Editorial Decision: Revise Major
31 Mar 20231st Revision Received
01 Apr 2023Submission Checks Completed
01 Apr 2023Assigned to Editor
01 Apr 2023Review(s) Completed, Editorial Evaluation Pending
01 Apr 2023Reviewer(s) Assigned
14 May 2023Editorial Decision: Revise Major
13 Jun 20232nd Revision Received
13 Jun 2023Submission Checks Completed
13 Jun 2023Assigned to Editor
13 Jun 2023Review(s) Completed, Editorial Evaluation Pending
14 Jun 2023Reviewer(s) Assigned
28 Jul 2023Editorial Decision: Accept