Preparation of LiCoPO4 and LiFePO4 coated LiCoPO4 materials with improved battery performance

I. C. Jang; H. H. Lim; S. B. Lee; K. Karthikeyan; V. Aravindan; K. S. Kang; W. S. Yoon; W. I. Cho; Y. S. Lee

doi:10.1016/j.jallcom.2010.03.055

Preparation of LiCoPO₄ and LiFePO₄ coated LiCoPO₄ materials with improved battery performance

I. C. Jang
, H. H. Lim
, S. B. Lee
, K. Karthikeyan
, V. Aravindan
, K. S. Kang
, W. S. Yoon
, W. I. Cho
, Y. S. Lee

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

74 Scopus citations

Abstract

Olivine LiCoPO₄ material has been successfully synthesized by solid-state reaction method without any carbon coating. The X-ray diffraction pattern shows that LiCoPO₄ has a well developed orthorhombic structure with Pnma space group. The SEM analysis shows the particulate nature of the prepared materials with <200 nm size. The TEM analysis confirms that a 2-3 nm thick LiFePO₄ layer is coated onto LiCoPO₄. The LiFePO₄ coated LiCoPO₄ cell delivers a high initial discharge capacity of 132 mAhg^-1, which is 19 mAhg^-1 higher than the parent LiCoPO₄. Furthermore, the LiFePO₄ coated LiCoPO₄ cell exhibits an improved capacity retention compared to the original LiCoPO₄ during cycling. Crown

Original language	English
Pages (from-to)	321-324
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	497
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2010.03.055
State	Published - 14 May 2010
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Lithium cobalt phosphate
Lithium ion phosphate
Sol-gel method
Solid-state reaction
Surface coating

Access to Document

10.1016/j.jallcom.2010.03.055

Cite this

@article{9d8d6d0b80c2473b8823931a3c976e52,

title = "Preparation of LiCoPO4 and LiFePO4 coated LiCoPO4 materials with improved battery performance",

abstract = "Olivine LiCoPO4 material has been successfully synthesized by solid-state reaction method without any carbon coating. The X-ray diffraction pattern shows that LiCoPO4 has a well developed orthorhombic structure with Pnma space group. The SEM analysis shows the particulate nature of the prepared materials with <200 nm size. The TEM analysis confirms that a 2-3 nm thick LiFePO4 layer is coated onto LiCoPO4. The LiFePO4 coated LiCoPO4 cell delivers a high initial discharge capacity of 132 mAhg-1, which is 19 mAhg-1 higher than the parent LiCoPO4. Furthermore, the LiFePO4 coated LiCoPO4 cell exhibits an improved capacity retention compared to the original LiCoPO4 during cycling. Crown",

keywords = "Lithium cobalt phosphate, Lithium ion phosphate, Sol-gel method, Solid-state reaction, Surface coating",

author = "Jang, \{I. C.\} and Lim, \{H. H.\} and Lee, \{S. B.\} and K. Karthikeyan and V. Aravindan and Kang, \{K. S.\} and Yoon, \{W. S.\} and Cho, \{W. I.\} and Lee, \{Y. S.\}",

year = "2010",

month = may,

day = "14",

doi = "10.1016/j.jallcom.2010.03.055",

language = "English",

volume = "497",

pages = "321--324",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Preparation of LiCoPO4 and LiFePO4 coated LiCoPO4 materials with improved battery performance

AU - Jang, I. C.

AU - Lim, H. H.

AU - Lee, S. B.

AU - Karthikeyan, K.

AU - Aravindan, V.

AU - Kang, K. S.

AU - Yoon, W. S.

AU - Cho, W. I.

AU - Lee, Y. S.

PY - 2010/5/14

Y1 - 2010/5/14

N2 - Olivine LiCoPO4 material has been successfully synthesized by solid-state reaction method without any carbon coating. The X-ray diffraction pattern shows that LiCoPO4 has a well developed orthorhombic structure with Pnma space group. The SEM analysis shows the particulate nature of the prepared materials with <200 nm size. The TEM analysis confirms that a 2-3 nm thick LiFePO4 layer is coated onto LiCoPO4. The LiFePO4 coated LiCoPO4 cell delivers a high initial discharge capacity of 132 mAhg-1, which is 19 mAhg-1 higher than the parent LiCoPO4. Furthermore, the LiFePO4 coated LiCoPO4 cell exhibits an improved capacity retention compared to the original LiCoPO4 during cycling. Crown

AB - Olivine LiCoPO4 material has been successfully synthesized by solid-state reaction method without any carbon coating. The X-ray diffraction pattern shows that LiCoPO4 has a well developed orthorhombic structure with Pnma space group. The SEM analysis shows the particulate nature of the prepared materials with <200 nm size. The TEM analysis confirms that a 2-3 nm thick LiFePO4 layer is coated onto LiCoPO4. The LiFePO4 coated LiCoPO4 cell delivers a high initial discharge capacity of 132 mAhg-1, which is 19 mAhg-1 higher than the parent LiCoPO4. Furthermore, the LiFePO4 coated LiCoPO4 cell exhibits an improved capacity retention compared to the original LiCoPO4 during cycling. Crown

KW - Lithium cobalt phosphate

KW - Lithium ion phosphate

KW - Sol-gel method

KW - Solid-state reaction

KW - Surface coating

UR - https://www.scopus.com/pages/publications/77950929719

U2 - 10.1016/j.jallcom.2010.03.055

DO - 10.1016/j.jallcom.2010.03.055

M3 - Article

AN - SCOPUS:77950929719

SN - 0925-8388

VL - 497

SP - 321

EP - 324

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -