Synthesis and electrochemical properties of Li3V 2(PO4)3-LiMnPO4 composite cathode material for lithium-ion batteries

Jin Shik Yun; Soo Kim; Byung Won Cho; Kwan Young Lee; Kyung Yoon Chung; Wonyoung Chang

doi:10.5012/bkcs.2013.34.2.433

Synthesis and electrochemical properties of Li₃V ₂(PO₄)₃-LiMnPO₄ composite cathode material for lithium-ion batteries

Jin Shik Yun^*
, Soo Kim
, Byung Won Cho
, Kwan Young Lee
, Kyung Yoon Chung
, Wonyoung Chang

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

Carbon-coated Li₃V₂(PO₄) ₃-LiMnPO₄ composite cathode materials are first reported in this work, prepared by the mechanochemical process with a complex metal oxide as the precursor and sucrose as the carbon source. X-ray diffraction pattern of the composite material indicates that both olivine LiMnPO₄ and monoclinic Li₃V₂(PO₄)₃ co-exist. We further investigated the electrochemical properties of our Li₃V ₂(PO₄)₃-LiMnPO₄ composite cathode materials using galvanostatic charging/discharging tests, where our Li ₃V₂(PO₄)₃-LiMnPO₄ composite electrode materials exhibit the charge/discharge efficiency of 91.9%, while Li₃V₂(PO₄)₃ and LiMnPO ₄ exhibit the efficiency of 87.7 and 86.7% in the first cycle. The composites display unique electrochemical performances in terms of overvoltage and cycle stability, displaying a reduced gap of 141.6 mV between charge and discharge voltage and 95.0% capacity efficiency after 15th cycles.

Original language	English
Pages (from-to)	433-436
Number of pages	4
Journal	Bulletin of the Korean Chemical Society
Volume	34
Issue number	2
DOIs	https://doi.org/10.5012/bkcs.2013.34.2.433
Publication status	Published - 2013 Feb 20

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Composite
Li-ion batteries
LiMnPO
LiV (PO)
Mechanochemical process

ASJC Scopus subject areas

General Chemistry

Access to Document

10.5012/bkcs.2013.34.2.433

Cite this

@article{426ee3c695b14ceeb4ffaea62b7537f0,

title = "Synthesis and electrochemical properties of Li3V 2(PO4)3-LiMnPO4 composite cathode material for lithium-ion batteries",

abstract = "Carbon-coated Li3V2(PO4) 3-LiMnPO4 composite cathode materials are first reported in this work, prepared by the mechanochemical process with a complex metal oxide as the precursor and sucrose as the carbon source. X-ray diffraction pattern of the composite material indicates that both olivine LiMnPO4 and monoclinic Li3V2(PO4)3 co-exist. We further investigated the electrochemical properties of our Li3V 2(PO4)3-LiMnPO4 composite cathode materials using galvanostatic charging/discharging tests, where our Li 3V2(PO4)3-LiMnPO4 composite electrode materials exhibit the charge/discharge efficiency of 91.9\%, while Li3V2(PO4)3 and LiMnPO 4 exhibit the efficiency of 87.7 and 86.7\% in the first cycle. The composites display unique electrochemical performances in terms of overvoltage and cycle stability, displaying a reduced gap of 141.6 mV between charge and discharge voltage and 95.0\% capacity efficiency after 15th cycles.",

keywords = "Composite, Li-ion batteries, LiMnPO, LiV (PO), Mechanochemical process",

author = "Yun, \{Jin Shik\} and Soo Kim and Cho, \{Byung Won\} and Lee, \{Kwan Young\} and Chung, \{Kyung Yoon\} and Wonyoung Chang",

year = "2013",

month = feb,

day = "20",

doi = "10.5012/bkcs.2013.34.2.433",

language = "English",

volume = "34",

pages = "433--436",

journal = "Bulletin of the Korean Chemical Society",

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TY - JOUR

T1 - Synthesis and electrochemical properties of Li3V 2(PO4)3-LiMnPO4 composite cathode material for lithium-ion batteries

AU - Yun, Jin Shik

AU - Kim, Soo

AU - Cho, Byung Won

AU - Lee, Kwan Young

AU - Chung, Kyung Yoon

AU - Chang, Wonyoung

PY - 2013/2/20

Y1 - 2013/2/20

N2 - Carbon-coated Li3V2(PO4) 3-LiMnPO4 composite cathode materials are first reported in this work, prepared by the mechanochemical process with a complex metal oxide as the precursor and sucrose as the carbon source. X-ray diffraction pattern of the composite material indicates that both olivine LiMnPO4 and monoclinic Li3V2(PO4)3 co-exist. We further investigated the electrochemical properties of our Li3V 2(PO4)3-LiMnPO4 composite cathode materials using galvanostatic charging/discharging tests, where our Li 3V2(PO4)3-LiMnPO4 composite electrode materials exhibit the charge/discharge efficiency of 91.9%, while Li3V2(PO4)3 and LiMnPO 4 exhibit the efficiency of 87.7 and 86.7% in the first cycle. The composites display unique electrochemical performances in terms of overvoltage and cycle stability, displaying a reduced gap of 141.6 mV between charge and discharge voltage and 95.0% capacity efficiency after 15th cycles.

AB - Carbon-coated Li3V2(PO4) 3-LiMnPO4 composite cathode materials are first reported in this work, prepared by the mechanochemical process with a complex metal oxide as the precursor and sucrose as the carbon source. X-ray diffraction pattern of the composite material indicates that both olivine LiMnPO4 and monoclinic Li3V2(PO4)3 co-exist. We further investigated the electrochemical properties of our Li3V 2(PO4)3-LiMnPO4 composite cathode materials using galvanostatic charging/discharging tests, where our Li 3V2(PO4)3-LiMnPO4 composite electrode materials exhibit the charge/discharge efficiency of 91.9%, while Li3V2(PO4)3 and LiMnPO 4 exhibit the efficiency of 87.7 and 86.7% in the first cycle. The composites display unique electrochemical performances in terms of overvoltage and cycle stability, displaying a reduced gap of 141.6 mV between charge and discharge voltage and 95.0% capacity efficiency after 15th cycles.

KW - Composite

KW - Li-ion batteries

KW - LiMnPO

KW - LiV (PO)

KW - Mechanochemical process

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U2 - 10.5012/bkcs.2013.34.2.433

DO - 10.5012/bkcs.2013.34.2.433

M3 - Article

AN - SCOPUS:84874551278

SN - 0253-2964

VL - 34

SP - 433

EP - 436

JO - Bulletin of the Korean Chemical Society

JF - Bulletin of the Korean Chemical Society

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