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

73 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

Keywords

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

UN SDGs

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

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 -