Fabrication of graphene embedded LiFePO4 using a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries

Wonkeun Kim; Wonhee Ryu; Dongwook Han; Sungjin Lim; Jiyong Eom; Hyuksang Kwon

doi:10.1021/am405335k

Fabrication of graphene embedded LiFePO₄ using a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries

Wonkeun Kim
, Wonhee Ryu
, Dongwook Han
, Sungjin Lim
, Jiyong Eom
, Hyuksang Kwon

Dept. of Future Energy Convergence

Korea Advanced Institute of Science and Technology
Korea Automotive Technology Institute

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

75 Scopus citations

Abstract

We have designed a unique microstructure of graphene embedded LiFePO ₄ by a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. The stable amide bonds between LiFePO ₄ and graphene were formed by the catalyst assisted self assembly. High conductive graphene provides a fast electron transfer path, and many pores inside the structure facilitate the lithium-ion diffusion. The graphene embedded LiFePO₄ fabricated by the novel method shows enhanced cycling performance and rate-capability compared with that of carbon coated LiFePO ₄ as a cathode material for high power lithium-ion batteries.

Original language	English
Pages (from-to)	4731-4736
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	7
DOIs	https://doi.org/10.1021/am405335k
State	Published - 9 Apr 2014

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

catalyst assisted self assembly
cathode
graphene
lithium-ion battery

Access to Document

10.1021/am405335k

Cite this

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abstract = "We have designed a unique microstructure of graphene embedded LiFePO 4 by a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. The stable amide bonds between LiFePO 4 and graphene were formed by the catalyst assisted self assembly. High conductive graphene provides a fast electron transfer path, and many pores inside the structure facilitate the lithium-ion diffusion. The graphene embedded LiFePO4 fabricated by the novel method shows enhanced cycling performance and rate-capability compared with that of carbon coated LiFePO 4 as a cathode material for high power lithium-ion batteries.",

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AU - Kim, Wonkeun

AU - Ryu, Wonhee

AU - Han, Dongwook

AU - Lim, Sungjin

AU - Eom, Jiyong

AU - Kwon, Hyuksang

PY - 2014/4/9

Y1 - 2014/4/9

N2 - We have designed a unique microstructure of graphene embedded LiFePO 4 by a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. The stable amide bonds between LiFePO 4 and graphene were formed by the catalyst assisted self assembly. High conductive graphene provides a fast electron transfer path, and many pores inside the structure facilitate the lithium-ion diffusion. The graphene embedded LiFePO4 fabricated by the novel method shows enhanced cycling performance and rate-capability compared with that of carbon coated LiFePO 4 as a cathode material for high power lithium-ion batteries.

AB - We have designed a unique microstructure of graphene embedded LiFePO 4 by a catalyst assisted self assembly method as a cathode material for high power lithium-ion batteries. The stable amide bonds between LiFePO 4 and graphene were formed by the catalyst assisted self assembly. High conductive graphene provides a fast electron transfer path, and many pores inside the structure facilitate the lithium-ion diffusion. The graphene embedded LiFePO4 fabricated by the novel method shows enhanced cycling performance and rate-capability compared with that of carbon coated LiFePO 4 as a cathode material for high power lithium-ion batteries.

KW - catalyst assisted self assembly

KW - cathode

KW - graphene

KW - lithium-ion battery

UR - https://www.scopus.com/pages/publications/84898410639

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

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