Surface modification and characterization of F-Co doped spinel LiMn2O4

Yaochun Yao; Yongnian Dai; Bin Yang; Wenhui Ma; Takayuki Watanabe

doi:10.1016/S1001-0521(07)60040-0

Surface modification and characterization of F-Co doped spinel LiMn₂O₄

Yaochun Yao, Yongnian Dai, Bin Yang, Wenhui Ma, Takayuki Watanabe

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

1 Citation (Scopus)

Abstract

Spinel LiCo_0.09Mn_1.91O_3.92F_0.08 as cathode material was modified with LiCoO₂ by the sol-gel method, and the crystal structure, morphology and electrochemical performance were characterized with XRD, SEM, EDS, AAS and charge-discharge test in this paper. The results show that a good clad coated on parent material can be synthesized by the sol-gel method, and the materials with modification have perfect spinel structure. LiCo_0.09Mn_1.91O_3.92F_0.08 materials coated by LiCoO₂ improve the stability of crystal structure and decrease the dissolution of Mn into electrolyte. With the LiCoO₂ content increasing, the specific capacity and cycle performance of samples are improved. The capacity loss is also suppressed distinctly even at 55°C.

Original language	English
Pages (from-to)	33-38
Number of pages	6
Journal	Rare Metals
Volume	25
Issue number	6 SUPPL. 1
DOIs	https://doi.org/10.1016/S1001-0521(07)60040-0
Publication status	Published - Oct 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Physical and Theoretical Chemistry
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S1001-0521(07)60040-0

Cite this

@article{0275649a88d24f0d86d8c876337f052a,

title = "Surface modification and characterization of F-Co doped spinel LiMn2O4",

abstract = "Spinel LiCo0.09Mn1.91O3.92F0.08 as cathode material was modified with LiCoO2 by the sol-gel method, and the crystal structure, morphology and electrochemical performance were characterized with XRD, SEM, EDS, AAS and charge-discharge test in this paper. The results show that a good clad coated on parent material can be synthesized by the sol-gel method, and the materials with modification have perfect spinel structure. LiCo0.09Mn1.91O3.92F0.08 materials coated by LiCoO2 improve the stability of crystal structure and decrease the dissolution of Mn into electrolyte. With the LiCoO2 content increasing, the specific capacity and cycle performance of samples are improved. The capacity loss is also suppressed distinctly even at 55°C.",

author = "Yaochun Yao and Yongnian Dai and Bin Yang and Wenhui Ma and Takayuki Watanabe",

year = "2006",

month = oct,

doi = "10.1016/S1001-0521(07)60040-0",

language = "English",

volume = "25",

pages = "33--38",

journal = "Rare Metals",

issn = "1001-0521",

publisher = "University of Science and Technology Beijing",

number = "6 SUPPL. 1",

}

TY - JOUR

T1 - Surface modification and characterization of F-Co doped spinel LiMn2O4

AU - Yao, Yaochun

AU - Dai, Yongnian

AU - Yang, Bin

AU - Ma, Wenhui

AU - Watanabe, Takayuki

PY - 2006/10

Y1 - 2006/10

N2 - Spinel LiCo0.09Mn1.91O3.92F0.08 as cathode material was modified with LiCoO2 by the sol-gel method, and the crystal structure, morphology and electrochemical performance were characterized with XRD, SEM, EDS, AAS and charge-discharge test in this paper. The results show that a good clad coated on parent material can be synthesized by the sol-gel method, and the materials with modification have perfect spinel structure. LiCo0.09Mn1.91O3.92F0.08 materials coated by LiCoO2 improve the stability of crystal structure and decrease the dissolution of Mn into electrolyte. With the LiCoO2 content increasing, the specific capacity and cycle performance of samples are improved. The capacity loss is also suppressed distinctly even at 55°C.

AB - Spinel LiCo0.09Mn1.91O3.92F0.08 as cathode material was modified with LiCoO2 by the sol-gel method, and the crystal structure, morphology and electrochemical performance were characterized with XRD, SEM, EDS, AAS and charge-discharge test in this paper. The results show that a good clad coated on parent material can be synthesized by the sol-gel method, and the materials with modification have perfect spinel structure. LiCo0.09Mn1.91O3.92F0.08 materials coated by LiCoO2 improve the stability of crystal structure and decrease the dissolution of Mn into electrolyte. With the LiCoO2 content increasing, the specific capacity and cycle performance of samples are improved. The capacity loss is also suppressed distinctly even at 55°C.

UR - http://www.scopus.com/inward/record.url?scp=33846839626&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846839626&partnerID=8YFLogxK

U2 - 10.1016/S1001-0521(07)60040-0

DO - 10.1016/S1001-0521(07)60040-0

M3 - Article

AN - SCOPUS:33846839626

SN - 1001-0521

VL - 25

SP - 33

EP - 38

JO - Rare Metals

JF - Rare Metals

IS - 6 SUPPL. 1

ER -

Surface modification and characterization of F-Co doped spinel LiMn₂O₄

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this