Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Activated Carbon-added Li4Ti5O12/Sn Composite Synthesized through Sol-Hydrothermal Method for Anode Active Material in Lithium-ion Battery

Version 1 : Received: 26 June 2022 / Approved: 29 June 2022 / Online: 29 June 2022 (10:04:27 CEST)

How to cite: Ma'dika, B.; Nabila, B.; Syahrial, A.Z. Activated Carbon-added Li4Ti5O12/Sn Composite Synthesized through Sol-Hydrothermal Method for Anode Active Material in Lithium-ion Battery. Preprints 2022, 2022060404 (doi: 10.20944/preprints202206.0404.v1). Ma'dika, B.; Nabila, B.; Syahrial, A.Z. Activated Carbon-added Li4Ti5O12/Sn Composite Synthesized through Sol-Hydrothermal Method for Anode Active Material in Lithium-ion Battery. Preprints 2022, 2022060404 (doi: 10.20944/preprints202206.0404.v1).

Abstract

Li4Ti5O12 (LTO) exhibits zero-strain behavior, exceptional cycle stability, low cost, and high safety. However, it is still low in electronic and ionic conductivity. Incorporating Sn into LTO materials can increase electronic conductivity and specific capacity. However, Sn still experiences volumetric expansion during the charging/discharging process. Adding activated carbon (AC) into the LTO/Sn composite can help improve the expansion resistance and electronic conductivity. In this work, the AC was first synthesized from charcoals through the carbon activation process and mixed with LTO precursors through the sol-hydrothermal method followed by mixing with Sn through the mechanochemical process to produce LTO@AC/Sn composites. The Sn content was fixed at 15 wt.%, while the AC contents were varied at 1 wt.%, 3 wt.%, and 5 wt.%. The AC specific surface area is increased by more than 100% compared to the non-activated one. The best effects of AC on grain morphology and distribution were found in the LTO/Sn contained 3 wt.% of AC, leading to transfer resistance, ohmic resistance, specific capacity, and coulombic efficiency were found to be 48.1 Ω, 8.5 Ω, 138 mAhg-1, and near 100%, respectively. The result suggests that the LTO@AC/Sn could be a favorable anode active material in lithium-ion batteries.

Keywords

activated carbon; lithium-ion batteries; LTO/Sn composite; sol-hydrothermal

Subject

MATERIALS SCIENCE, Other

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.

We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.