Electrochemical properties of cobalt hydroxychloride microspheres as a new anode material for Li-ion batteries

Gi Dae Park, You Na Ko, Yun Chan Kang

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The use of cobalt hydroxychloride [Co2(OH)3Cl] as an anode material for lithium ion batteries (LIBs) is investigated using spherical shape and ultrafine nanocrystals directly formed by spray pyrolysis from spray solution of cobalt chloride salt. Dot-mapping images of the resulting powders reveal a uniform distribution of Co, O, and Cl throughout the powder. The Co2(OH)3Cl powder prepared directly by spray pyrolysis exhibits a high thermal stability at temperatures below 220°C, as well as having superior electrochemical properties compared with those of the CoCl 2(H2O)2 and CoO powders prepared by the same process. The initial discharge capacities of the Co2(OH) 3Cl and CoO powders at a constant current density of 1000 mA g -1 are found to be 1570 and 1142 mAh g-1, respectively, and their initial Coulombic efficiencies are 72 and 70%. The discharge capacities of the Co2(OH)3Cl and CoO powders after 100 cycles are 955 and 632 mA h g-1, respectively. The Co 2(OH)3Cl powders have a high discharge capacity of 609 mA h g-1 even after 1000 cycles at a high current density of 5000 mA g-1.

Original languageEnglish
Article number5785
JournalScientific reports
Volume4
DOIs
Publication statusPublished - 2014 Aug 29
Externally publishedYes

Fingerprint

Cobalt
Microspheres
Electrochemical properties
Powders
Anodes
Spray pyrolysis
Current density
Lithium-ion batteries
Nanocrystals
Thermodynamic stability
Salts

ASJC Scopus subject areas

  • General

Cite this

Electrochemical properties of cobalt hydroxychloride microspheres as a new anode material for Li-ion batteries. / Park, Gi Dae; Ko, You Na; Kang, Yun Chan.

In: Scientific reports, Vol. 4, 5785, 29.08.2014.

Research output: Contribution to journalArticle

@article{9a523bfaf44743abbde1331c42e35343,
title = "Electrochemical properties of cobalt hydroxychloride microspheres as a new anode material for Li-ion batteries",
abstract = "The use of cobalt hydroxychloride [Co2(OH)3Cl] as an anode material for lithium ion batteries (LIBs) is investigated using spherical shape and ultrafine nanocrystals directly formed by spray pyrolysis from spray solution of cobalt chloride salt. Dot-mapping images of the resulting powders reveal a uniform distribution of Co, O, and Cl throughout the powder. The Co2(OH)3Cl powder prepared directly by spray pyrolysis exhibits a high thermal stability at temperatures below 220°C, as well as having superior electrochemical properties compared with those of the CoCl 2(H2O)2 and CoO powders prepared by the same process. The initial discharge capacities of the Co2(OH) 3Cl and CoO powders at a constant current density of 1000 mA g -1 are found to be 1570 and 1142 mAh g-1, respectively, and their initial Coulombic efficiencies are 72 and 70{\%}. The discharge capacities of the Co2(OH)3Cl and CoO powders after 100 cycles are 955 and 632 mA h g-1, respectively. The Co 2(OH)3Cl powders have a high discharge capacity of 609 mA h g-1 even after 1000 cycles at a high current density of 5000 mA g-1.",
author = "Park, {Gi Dae} and Ko, {You Na} and Kang, {Yun Chan}",
year = "2014",
month = "8",
day = "29",
doi = "10.1038/srep05785",
language = "English",
volume = "4",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Electrochemical properties of cobalt hydroxychloride microspheres as a new anode material for Li-ion batteries

AU - Park, Gi Dae

AU - Ko, You Na

AU - Kang, Yun Chan

PY - 2014/8/29

Y1 - 2014/8/29

N2 - The use of cobalt hydroxychloride [Co2(OH)3Cl] as an anode material for lithium ion batteries (LIBs) is investigated using spherical shape and ultrafine nanocrystals directly formed by spray pyrolysis from spray solution of cobalt chloride salt. Dot-mapping images of the resulting powders reveal a uniform distribution of Co, O, and Cl throughout the powder. The Co2(OH)3Cl powder prepared directly by spray pyrolysis exhibits a high thermal stability at temperatures below 220°C, as well as having superior electrochemical properties compared with those of the CoCl 2(H2O)2 and CoO powders prepared by the same process. The initial discharge capacities of the Co2(OH) 3Cl and CoO powders at a constant current density of 1000 mA g -1 are found to be 1570 and 1142 mAh g-1, respectively, and their initial Coulombic efficiencies are 72 and 70%. The discharge capacities of the Co2(OH)3Cl and CoO powders after 100 cycles are 955 and 632 mA h g-1, respectively. The Co 2(OH)3Cl powders have a high discharge capacity of 609 mA h g-1 even after 1000 cycles at a high current density of 5000 mA g-1.

AB - The use of cobalt hydroxychloride [Co2(OH)3Cl] as an anode material for lithium ion batteries (LIBs) is investigated using spherical shape and ultrafine nanocrystals directly formed by spray pyrolysis from spray solution of cobalt chloride salt. Dot-mapping images of the resulting powders reveal a uniform distribution of Co, O, and Cl throughout the powder. The Co2(OH)3Cl powder prepared directly by spray pyrolysis exhibits a high thermal stability at temperatures below 220°C, as well as having superior electrochemical properties compared with those of the CoCl 2(H2O)2 and CoO powders prepared by the same process. The initial discharge capacities of the Co2(OH) 3Cl and CoO powders at a constant current density of 1000 mA g -1 are found to be 1570 and 1142 mAh g-1, respectively, and their initial Coulombic efficiencies are 72 and 70%. The discharge capacities of the Co2(OH)3Cl and CoO powders after 100 cycles are 955 and 632 mA h g-1, respectively. The Co 2(OH)3Cl powders have a high discharge capacity of 609 mA h g-1 even after 1000 cycles at a high current density of 5000 mA g-1.

UR - http://www.scopus.com/inward/record.url?scp=84906812720&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84906812720&partnerID=8YFLogxK

U2 - 10.1038/srep05785

DO - 10.1038/srep05785

M3 - Article

AN - SCOPUS:84906812720

VL - 4

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 5785

ER -