LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures

In this work, a hybrid-layer coated LiFePO4/C (LFP/C) cathode material is investigated for the application of high temperature performance of Li-ion battery. The electrochemical performance of the material is significantly enhanced by improving its ionic and electronic conductivity via hybrid-layer...

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Main Authors:	Yang, Chun-Chen, Jiang, Jia-Rong, Karuppiah, Chelladurai, Jang, Jer-Huan, Wu, Zong-Han, Rajan, Jose, Lue, Shingjiang Jessie
Format:	Article
Language:	English
Published:	Elsevier Ltd 2018
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/22325/ http://umpir.ump.edu.my/id/eprint/22325/ http://umpir.ump.edu.my/id/eprint/22325/ http://umpir.ump.edu.my/id/eprint/22325/1/LATP%20ionic%20conductor%20and%20in-situ%20graphene%20hybrid-layer%20coating%20on%20LiFePO4%20cathode%20material%20at%20different%20temperatures.pdf

id	ump-22325
recordtype	eprints
spelling	ump-223252019-01-21T08:27:07Z http://umpir.ump.edu.my/id/eprint/22325/ LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures Yang, Chun-Chen Jiang, Jia-Rong Karuppiah, Chelladurai Jang, Jer-Huan Wu, Zong-Han Rajan, Jose Lue, Shingjiang Jessie Q Science (General) In this work, a hybrid-layer coated LiFePO4/C (LFP/C) cathode material is investigated for the application of high temperature performance of Li-ion battery. The electrochemical performance of the material is significantly enhanced by improving its ionic and electronic conductivity via hybrid-layer coating, i.e., Li1.4Al0.4Ti1.6(PO4)3 (LATP) and graphene nanosheets (GNS) layer. Initially, the LATP layer is coated by a sol-gel method and later, the in-situ GNS layer is coated through a wet chemical process. The characteristic properties of LFP/C@LATP@GNS composite are examined by various spectroscopy and microscopy method. The electrochemical performances of LFP/C@LATP@GNS cathode material have been evaluated at different temperature such as −20 °C, 25 °C and 55 °C. The best electrochemical performance is observed at 55 °C with the discharge capacities of 160, 156, 154, 153, 149, 144, and 130 mAh g−1 at 0.1C, 0.2C, 0.5C, 1C, 3C, 5C, and 10C rate, respectively. Due to its higher ionic and electronic conductivity, the long cycle-life is obtained for LFP/C@LATP@GNS cathode material at 55 °C, which is maintained over 500 cycles at 10C rate with the fading rate of ca. 8.76%. Hence, the dual-layer coating on LFP cathode material is the superior method to develop the high performance Li-ion battery for electric vehicles. Elsevier Ltd 2018 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/22325/1/LATP%20ionic%20conductor%20and%20in-situ%20graphene%20hybrid-layer%20coating%20on%20LiFePO4%20cathode%20material%20at%20different%20temperatures.pdf Yang, Chun-Chen and Jiang, Jia-Rong and Karuppiah, Chelladurai and Jang, Jer-Huan and Wu, Zong-Han and Rajan, Jose and Lue, Shingjiang Jessie (2018) LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures. Journal of Alloys and Compounds, 765. pp. 800-811. ISSN 0925-8388 (Print); 1873-4669 (Online) https://doi.org/10.1016/j.jallcom.2018.06.289 10.1016/j.jallcom.2018.06.289
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Yang, Chun-Chen Jiang, Jia-Rong Karuppiah, Chelladurai Jang, Jer-Huan Wu, Zong-Han Rajan, Jose Lue, Shingjiang Jessie LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures
description	In this work, a hybrid-layer coated LiFePO4/C (LFP/C) cathode material is investigated for the application of high temperature performance of Li-ion battery. The electrochemical performance of the material is significantly enhanced by improving its ionic and electronic conductivity via hybrid-layer coating, i.e., Li1.4Al0.4Ti1.6(PO4)3 (LATP) and graphene nanosheets (GNS) layer. Initially, the LATP layer is coated by a sol-gel method and later, the in-situ GNS layer is coated through a wet chemical process. The characteristic properties of LFP/C@LATP@GNS composite are examined by various spectroscopy and microscopy method. The electrochemical performances of LFP/C@LATP@GNS cathode material have been evaluated at different temperature such as −20 °C, 25 °C and 55 °C. The best electrochemical performance is observed at 55 °C with the discharge capacities of 160, 156, 154, 153, 149, 144, and 130 mAh g−1 at 0.1C, 0.2C, 0.5C, 1C, 3C, 5C, and 10C rate, respectively. Due to its higher ionic and electronic conductivity, the long cycle-life is obtained for LFP/C@LATP@GNS cathode material at 55 °C, which is maintained over 500 cycles at 10C rate with the fading rate of ca. 8.76%. Hence, the dual-layer coating on LFP cathode material is the superior method to develop the high performance Li-ion battery for electric vehicles.
format	Article
author	Yang, Chun-Chen Jiang, Jia-Rong Karuppiah, Chelladurai Jang, Jer-Huan Wu, Zong-Han Rajan, Jose Lue, Shingjiang Jessie
author_facet	Yang, Chun-Chen Jiang, Jia-Rong Karuppiah, Chelladurai Jang, Jer-Huan Wu, Zong-Han Rajan, Jose Lue, Shingjiang Jessie
author_sort	Yang, Chun-Chen
title	LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures
title_short	LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures
title_full	LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures
title_fullStr	LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures
title_full_unstemmed	LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures
title_sort	latp ionic conductor and in-situ graphene hybrid-layer coating on lifepo4 cathode material at different temperatures
publisher	Elsevier Ltd
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/22325/ http://umpir.ump.edu.my/id/eprint/22325/ http://umpir.ump.edu.my/id/eprint/22325/ http://umpir.ump.edu.my/id/eprint/22325/1/LATP%20ionic%20conductor%20and%20in-situ%20graphene%20hybrid-layer%20coating%20on%20LiFePO4%20cathode%20material%20at%20different%20temperatures.pdf
first_indexed	2023-09-18T22:33:10Z
last_indexed	2023-09-18T22:33:10Z
_version_	1777416421498683392

LATP ionic conductor and in-situ graphene hybrid-layer coating on LiFePO4 cathode material at different temperatures

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