One-pot synthesis of FePO4·H2O/carbon nanotube coaxial nanocomposite for high rate lithium ion batteries

Jong Pil Jegal; Jin Go Kim; Kwang Bum Kim

doi:10.1016/j.elecom.2013.02.014

One-pot synthesis of FePO₄·H₂O/carbon nanotube coaxial nanocomposite for high rate lithium ion batteries

Jong Pil Jegal, Jin Go Kim, Kwang Bum Kim

Department of Materials Science and Engineering

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

13 Citations (Scopus)

Abstract

We developed an environmentally friendly, one-pot, solution-based method to synthesize a FePO₄·H₂O/carbon nanotube coaxial nanocomposite for lithium ion battery applications without using multi-step, time-consuming processes or hazardous reaction media. The resulting nanocomposite delivered a discharge capacity of 157 mAh g^-1 at a current density of 12.5 mA g^-1, 146 mAh g^-1 at 625 mA g^-1 and 61 mAh g^-1 even at 15,000 mA g^-1. The excellent high rate capability was attributed to the improved electronic conductivity due to the intimate contact between nano-structured FePO ₄·H₂O and CNT, and to the easy access of the electrolyte because of the porous structure of the FePO₄· H₂O.

Original language	English
Pages (from-to)	87-90
Number of pages	4
Journal	Electrochemistry Communications
Volume	30
DOIs	https://doi.org/10.1016/j.elecom.2013.02.014
Publication status	Published - 2013 May

Bibliographical note

Funding Information:
This work was supported by the IT R&D program of MKE/KEIT [ KI002177 ] and by the collaborative Research Program among industry, academia and research institutes through KOITA funded by the MEST [ KOITA-2011 ].

All Science Journal Classification (ASJC) codes

Electrochemistry

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This output contributes to the following Sustainable Development Goal(s)

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title = "One-pot synthesis of FePO4·H2O/carbon nanotube coaxial nanocomposite for high rate lithium ion batteries",

abstract = "We developed an environmentally friendly, one-pot, solution-based method to synthesize a FePO4·H2O/carbon nanotube coaxial nanocomposite for lithium ion battery applications without using multi-step, time-consuming processes or hazardous reaction media. The resulting nanocomposite delivered a discharge capacity of 157 mAh g-1 at a current density of 12.5 mA g-1, 146 mAh g-1 at 625 mA g-1 and 61 mAh g-1 even at 15,000 mA g-1. The excellent high rate capability was attributed to the improved electronic conductivity due to the intimate contact between nano-structured FePO 4·H2O and CNT, and to the easy access of the electrolyte because of the porous structure of the FePO4· H2O.",

author = "Jegal, {Jong Pil} and Kim, {Jin Go} and Kim, {Kwang Bum}",

note = "Funding Information: This work was supported by the IT R&D program of MKE/KEIT [ KI002177 ] and by the collaborative Research Program among industry, academia and research institutes through KOITA funded by the MEST [ KOITA-2011 ].",

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AU - Jegal, Jong Pil

AU - Kim, Jin Go

AU - Kim, Kwang Bum

N1 - Funding Information: This work was supported by the IT R&D program of MKE/KEIT [ KI002177 ] and by the collaborative Research Program among industry, academia and research institutes through KOITA funded by the MEST [ KOITA-2011 ].

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AB - We developed an environmentally friendly, one-pot, solution-based method to synthesize a FePO4·H2O/carbon nanotube coaxial nanocomposite for lithium ion battery applications without using multi-step, time-consuming processes or hazardous reaction media. The resulting nanocomposite delivered a discharge capacity of 157 mAh g-1 at a current density of 12.5 mA g-1, 146 mAh g-1 at 625 mA g-1 and 61 mAh g-1 even at 15,000 mA g-1. The excellent high rate capability was attributed to the improved electronic conductivity due to the intimate contact between nano-structured FePO 4·H2O and CNT, and to the easy access of the electrolyte because of the porous structure of the FePO4· H2O.

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