Exploring High-Energy Li-I(r)on Batteries and Capacitors with Conversion-Type Fe3O4-rGO as the Negative Electrode

Hyun Kyung Kim, Vanchiappan Aravindan, Ms Ha Kyung Roh, Kyujoon Lee, Myung Hwa Jung, Srinivasan Madhavi, Kwang Chul Roh, Kwang Bum Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report a microwave-assisted solvothermal process for the preparation of magnetite (Fe3O4, ca. 5 nm)-anchored reduced graphene oxide (rGO). It has been examined as a prospective conversion-type negative electrode for multiple energy storage applications, such as Li-ion batteries (LIBs) and Li-ion capacitors (LICs). A LiFePO4/Fe3O4-rGO cell is constructed and capable of delivering an energy density of approximately 139 Wh kg−1 with a notable cyclability (ca. 76 %) after 500 cycles. Prior to the fabrication of a LIB, the Fe3O4-rGO is electrochemically pretreated to eliminate the irreversible capacity loss. In addition to the LIB, a high-energy LIC is also fabricated by using the pre-lithiated Fe3O4-rGO composite as the anode and commercial activated carbon as the cathode. This LIC registered a maximum energy density of approximately 114 Wh kg−1 with good cyclability. For both the LIB and LIC, the mass loading between the electrodes was adjusted based on the performance with metallic Li. The improved electrochemical performance of Fe3O4-rGO over existing materials is a promising development in the quest for novel, fast, low cost, and efficient energy storage systems without compromising the eco-friendliness.

Original languageEnglish
Pages (from-to)2626-2633
Number of pages8
JournalChemElectroChem
Volume4
Issue number10
DOIs
Publication statusPublished - 2017 Oct 1

Fingerprint

Graphite
Oxides
Graphene
Capacitors
Electrodes
Ions
Energy storage
Ferrosoferric Oxide
Magnetite
Activated carbon
Anodes
Cathodes
Microwaves
Fabrication
Lithium-ion batteries
Composite materials
Costs

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electrochemistry

Cite this

Kim, Hyun Kyung ; Aravindan, Vanchiappan ; Roh, Ms Ha Kyung ; Lee, Kyujoon ; Jung, Myung Hwa ; Madhavi, Srinivasan ; Roh, Kwang Chul ; Kim, Kwang Bum. / Exploring High-Energy Li-I(r)on Batteries and Capacitors with Conversion-Type Fe3O4-rGO as the Negative Electrode. In: ChemElectroChem. 2017 ; Vol. 4, No. 10. pp. 2626-2633.
@article{31eb5072e5c04072a0b424aa543d68c7,
title = "Exploring High-Energy Li-I(r)on Batteries and Capacitors with Conversion-Type Fe3O4-rGO as the Negative Electrode",
abstract = "We report a microwave-assisted solvothermal process for the preparation of magnetite (Fe3O4, ca. 5 nm)-anchored reduced graphene oxide (rGO). It has been examined as a prospective conversion-type negative electrode for multiple energy storage applications, such as Li-ion batteries (LIBs) and Li-ion capacitors (LICs). A LiFePO4/Fe3O4-rGO cell is constructed and capable of delivering an energy density of approximately 139 Wh kg−1 with a notable cyclability (ca. 76 {\%}) after 500 cycles. Prior to the fabrication of a LIB, the Fe3O4-rGO is electrochemically pretreated to eliminate the irreversible capacity loss. In addition to the LIB, a high-energy LIC is also fabricated by using the pre-lithiated Fe3O4-rGO composite as the anode and commercial activated carbon as the cathode. This LIC registered a maximum energy density of approximately 114 Wh kg−1 with good cyclability. For both the LIB and LIC, the mass loading between the electrodes was adjusted based on the performance with metallic Li. The improved electrochemical performance of Fe3O4-rGO over existing materials is a promising development in the quest for novel, fast, low cost, and efficient energy storage systems without compromising the eco-friendliness.",
author = "Kim, {Hyun Kyung} and Vanchiappan Aravindan and Roh, {Ms Ha Kyung} and Kyujoon Lee and Jung, {Myung Hwa} and Srinivasan Madhavi and Roh, {Kwang Chul} and Kim, {Kwang Bum}",
year = "2017",
month = "10",
day = "1",
doi = "10.1002/celc.201700484",
language = "English",
volume = "4",
pages = "2626--2633",
journal = "ChemElectroChem",
issn = "2196-0216",
publisher = "John Wiley and Sons Ltd",
number = "10",

}

Exploring High-Energy Li-I(r)on Batteries and Capacitors with Conversion-Type Fe3O4-rGO as the Negative Electrode. / Kim, Hyun Kyung; Aravindan, Vanchiappan; Roh, Ms Ha Kyung; Lee, Kyujoon; Jung, Myung Hwa; Madhavi, Srinivasan; Roh, Kwang Chul; Kim, Kwang Bum.

In: ChemElectroChem, Vol. 4, No. 10, 01.10.2017, p. 2626-2633.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Exploring High-Energy Li-I(r)on Batteries and Capacitors with Conversion-Type Fe3O4-rGO as the Negative Electrode

AU - Kim, Hyun Kyung

AU - Aravindan, Vanchiappan

AU - Roh, Ms Ha Kyung

AU - Lee, Kyujoon

AU - Jung, Myung Hwa

AU - Madhavi, Srinivasan

AU - Roh, Kwang Chul

AU - Kim, Kwang Bum

PY - 2017/10/1

Y1 - 2017/10/1

N2 - We report a microwave-assisted solvothermal process for the preparation of magnetite (Fe3O4, ca. 5 nm)-anchored reduced graphene oxide (rGO). It has been examined as a prospective conversion-type negative electrode for multiple energy storage applications, such as Li-ion batteries (LIBs) and Li-ion capacitors (LICs). A LiFePO4/Fe3O4-rGO cell is constructed and capable of delivering an energy density of approximately 139 Wh kg−1 with a notable cyclability (ca. 76 %) after 500 cycles. Prior to the fabrication of a LIB, the Fe3O4-rGO is electrochemically pretreated to eliminate the irreversible capacity loss. In addition to the LIB, a high-energy LIC is also fabricated by using the pre-lithiated Fe3O4-rGO composite as the anode and commercial activated carbon as the cathode. This LIC registered a maximum energy density of approximately 114 Wh kg−1 with good cyclability. For both the LIB and LIC, the mass loading between the electrodes was adjusted based on the performance with metallic Li. The improved electrochemical performance of Fe3O4-rGO over existing materials is a promising development in the quest for novel, fast, low cost, and efficient energy storage systems without compromising the eco-friendliness.

AB - We report a microwave-assisted solvothermal process for the preparation of magnetite (Fe3O4, ca. 5 nm)-anchored reduced graphene oxide (rGO). It has been examined as a prospective conversion-type negative electrode for multiple energy storage applications, such as Li-ion batteries (LIBs) and Li-ion capacitors (LICs). A LiFePO4/Fe3O4-rGO cell is constructed and capable of delivering an energy density of approximately 139 Wh kg−1 with a notable cyclability (ca. 76 %) after 500 cycles. Prior to the fabrication of a LIB, the Fe3O4-rGO is electrochemically pretreated to eliminate the irreversible capacity loss. In addition to the LIB, a high-energy LIC is also fabricated by using the pre-lithiated Fe3O4-rGO composite as the anode and commercial activated carbon as the cathode. This LIC registered a maximum energy density of approximately 114 Wh kg−1 with good cyclability. For both the LIB and LIC, the mass loading between the electrodes was adjusted based on the performance with metallic Li. The improved electrochemical performance of Fe3O4-rGO over existing materials is a promising development in the quest for novel, fast, low cost, and efficient energy storage systems without compromising the eco-friendliness.

UR - http://www.scopus.com/inward/record.url?scp=85021771312&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85021771312&partnerID=8YFLogxK

U2 - 10.1002/celc.201700484

DO - 10.1002/celc.201700484

M3 - Article

VL - 4

SP - 2626

EP - 2633

JO - ChemElectroChem

JF - ChemElectroChem

SN - 2196-0216

IS - 10

ER -