Controllable synthesis of LiFePO4 microrods and its superior electrochemical performance

Amarsingh Bhabu Kanagaraj; Prerna Chaturvedi; Hae Jin Kim; Daniel S. Choi

doi:10.1016/j.matlet.2020.128737

Controllable synthesis of LiFePO₄ microrods and its superior electrochemical performance

Amarsingh Bhabu Kanagaraj, Prerna Chaturvedi, Hae Jin Kim, Daniel S. Choi

Mechanical & Nuclear Engineering

Korea Basic Science Institute

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Lithium iron phosphate (LiFePO₄) cathode materials with microparticles (MPs) and microrods (MRs) for lithium-ion battery were synthesized through a hydrothermal process. The influence of controllable and uncontrollable growth of LiFePO₄ (LFP) particles and its impact on microstructural, thermal, mechanical and electrochemical properties were discussed. Free-standing LiFePO₄/multi-walled carbon nanotube (MWCNT) composite electrodes were prepared using a tape-casting technique and used for mechanical and electrochemical analysis. LFP-MR/MWCNT composite electrode exhibited a high specific capacity (~192 mAh/g at 0.1 C) beyond the theoretical specific capacity of LiFePO₄ (~170 mAh/g at 1 C). Further, to evaluate the failure mode of battery, LFP-MR/MWCNTs composite electrode has been tested electrochemically up to 600 cycles at 10 C rate.

Original language	British English
Article number	128737
Journal	Materials Letters
Volume	283
DOIs	https://doi.org/10.1016/j.matlet.2020.128737
State	Published - 15 Jan 2021

Keywords

Discharge capacity
Hydrothermal
LiFePO
Microparticles
Microrods

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.matlet.2020.128737

Cite this

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title = "Controllable synthesis of LiFePO4 microrods and its superior electrochemical performance",

abstract = "Lithium iron phosphate (LiFePO4) cathode materials with microparticles (MPs) and microrods (MRs) for lithium-ion battery were synthesized through a hydrothermal process. The influence of controllable and uncontrollable growth of LiFePO4 (LFP) particles and its impact on microstructural, thermal, mechanical and electrochemical properties were discussed. Free-standing LiFePO4/multi-walled carbon nanotube (MWCNT) composite electrodes were prepared using a tape-casting technique and used for mechanical and electrochemical analysis. LFP-MR/MWCNT composite electrode exhibited a high specific capacity (~192 mAh/g at 0.1 C) beyond the theoretical specific capacity of LiFePO4 (~170 mAh/g at 1 C). Further, to evaluate the failure mode of battery, LFP-MR/MWCNTs composite electrode has been tested electrochemically up to 600 cycles at 10 C rate.",

keywords = "Discharge capacity, Hydrothermal, LiFePO, Microparticles, Microrods",

author = "Kanagaraj, {Amarsingh Bhabu} and Prerna Chaturvedi and Kim, {Hae Jin} and Choi, {Daniel S.}",

note = "Funding Information: This work is funded by the United Arab Emirates Space Agency, Space Missions{\textquoteright} Science and Technology Directorate , United Arab Emirates, Reference M04-2016-001 as well as the Korea-UAE Joint R&D Technical Center (KUTC), under Award No. 8474000259 . Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

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doi = "10.1016/j.matlet.2020.128737",

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AU - Kanagaraj, Amarsingh Bhabu

AU - Chaturvedi, Prerna

AU - Kim, Hae Jin

AU - Choi, Daniel S.

N1 - Funding Information: This work is funded by the United Arab Emirates Space Agency, Space Missions’ Science and Technology Directorate , United Arab Emirates, Reference M04-2016-001 as well as the Korea-UAE Joint R&D Technical Center (KUTC), under Award No. 8474000259 . Publisher Copyright: © 2020 Elsevier B.V.

PY - 2021/1/15

Y1 - 2021/1/15

N2 - Lithium iron phosphate (LiFePO4) cathode materials with microparticles (MPs) and microrods (MRs) for lithium-ion battery were synthesized through a hydrothermal process. The influence of controllable and uncontrollable growth of LiFePO4 (LFP) particles and its impact on microstructural, thermal, mechanical and electrochemical properties were discussed. Free-standing LiFePO4/multi-walled carbon nanotube (MWCNT) composite electrodes were prepared using a tape-casting technique and used for mechanical and electrochemical analysis. LFP-MR/MWCNT composite electrode exhibited a high specific capacity (~192 mAh/g at 0.1 C) beyond the theoretical specific capacity of LiFePO4 (~170 mAh/g at 1 C). Further, to evaluate the failure mode of battery, LFP-MR/MWCNTs composite electrode has been tested electrochemically up to 600 cycles at 10 C rate.

AB - Lithium iron phosphate (LiFePO4) cathode materials with microparticles (MPs) and microrods (MRs) for lithium-ion battery were synthesized through a hydrothermal process. The influence of controllable and uncontrollable growth of LiFePO4 (LFP) particles and its impact on microstructural, thermal, mechanical and electrochemical properties were discussed. Free-standing LiFePO4/multi-walled carbon nanotube (MWCNT) composite electrodes were prepared using a tape-casting technique and used for mechanical and electrochemical analysis. LFP-MR/MWCNT composite electrode exhibited a high specific capacity (~192 mAh/g at 0.1 C) beyond the theoretical specific capacity of LiFePO4 (~170 mAh/g at 1 C). Further, to evaluate the failure mode of battery, LFP-MR/MWCNTs composite electrode has been tested electrochemically up to 600 cycles at 10 C rate.

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