Electrochemical properties of Cu6Sn5-C composite powders with mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon

Yong Seung Jang, Jung Hyun Kim, Seung Ho Choi, Kwang Min Yang, Yun Chan Kang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

SnO2-CuO-C composite powders consisting of hollow-structured particles are directly prepared using template-free spray pyrolysis. Reduction of the composite powders at 1000°C produces Cu6Sn5-C composite powders containing a mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon particles. In the yolk-shell powder, mobile Cu5Sn6 powder particle is located inside the hollow hard-carbon powder particle. The mean sizes of the Cu5Sn6 alloy and carbon powders are 0.7 and 1.6 μm, respectively. The submicron Cu5Sn6 alloy powders are coated with a uniformly thin carbon layer. The initial charge and discharge capacities of the composite powders are 254 and 578 mAh g-1, respectively, at a high current density of 300 mA g-1. The charge capacity of the composite powders slightly increases with increasing number of cycles during the first three cycles. The maximum charge capacity of the composite powders is 300 mAh g-1. The charge capacity of the composite powders is 241 mAh g-1 after 30 cycles, at which point the capacity retention is 80%. The unique particle structure and phase homogeneity improve the cycle properties of the composite alloy powders.

Original languageEnglish
Pages (from-to)12531-12544
Number of pages14
JournalInternational Journal of Electrochemical Science
Volume7
Issue number12
Publication statusPublished - 2012 Dec 20
Externally publishedYes

Fingerprint

Electrochemical properties
Powders
Carbon
Composite materials
Spray pyrolysis
Current density

Keywords

  • Aloy powder
  • Anode materials
  • Composite powders
  • Spray pyrolysis

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Electrochemical properties of Cu6Sn5-C composite powders with mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon. / Jang, Yong Seung; Kim, Jung Hyun; Choi, Seung Ho; Yang, Kwang Min; Kang, Yun Chan.

In: International Journal of Electrochemical Science, Vol. 7, No. 12, 20.12.2012, p. 12531-12544.

Research output: Contribution to journalArticle

@article{f78f5eadfce7440a8d782c5e92bb166f,
title = "Electrochemical properties of Cu6Sn5-C composite powders with mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon",
abstract = "SnO2-CuO-C composite powders consisting of hollow-structured particles are directly prepared using template-free spray pyrolysis. Reduction of the composite powders at 1000°C produces Cu6Sn5-C composite powders containing a mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon particles. In the yolk-shell powder, mobile Cu5Sn6 powder particle is located inside the hollow hard-carbon powder particle. The mean sizes of the Cu5Sn6 alloy and carbon powders are 0.7 and 1.6 μm, respectively. The submicron Cu5Sn6 alloy powders are coated with a uniformly thin carbon layer. The initial charge and discharge capacities of the composite powders are 254 and 578 mAh g-1, respectively, at a high current density of 300 mA g-1. The charge capacity of the composite powders slightly increases with increasing number of cycles during the first three cycles. The maximum charge capacity of the composite powders is 300 mAh g-1. The charge capacity of the composite powders is 241 mAh g-1 after 30 cycles, at which point the capacity retention is 80{\%}. The unique particle structure and phase homogeneity improve the cycle properties of the composite alloy powders.",
keywords = "Aloy powder, Anode materials, Composite powders, Spray pyrolysis",
author = "Jang, {Yong Seung} and Kim, {Jung Hyun} and Choi, {Seung Ho} and Yang, {Kwang Min} and Kang, {Yun Chan}",
year = "2012",
month = "12",
day = "20",
language = "English",
volume = "7",
pages = "12531--12544",
journal = "International Journal of Electrochemical Science",
issn = "1452-3981",
publisher = "Electrochemical Science Group",
number = "12",

}

TY - JOUR

T1 - Electrochemical properties of Cu6Sn5-C composite powders with mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon

AU - Jang, Yong Seung

AU - Kim, Jung Hyun

AU - Choi, Seung Ho

AU - Yang, Kwang Min

AU - Kang, Yun Chan

PY - 2012/12/20

Y1 - 2012/12/20

N2 - SnO2-CuO-C composite powders consisting of hollow-structured particles are directly prepared using template-free spray pyrolysis. Reduction of the composite powders at 1000°C produces Cu6Sn5-C composite powders containing a mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon particles. In the yolk-shell powder, mobile Cu5Sn6 powder particle is located inside the hollow hard-carbon powder particle. The mean sizes of the Cu5Sn6 alloy and carbon powders are 0.7 and 1.6 μm, respectively. The submicron Cu5Sn6 alloy powders are coated with a uniformly thin carbon layer. The initial charge and discharge capacities of the composite powders are 254 and 578 mAh g-1, respectively, at a high current density of 300 mA g-1. The charge capacity of the composite powders slightly increases with increasing number of cycles during the first three cycles. The maximum charge capacity of the composite powders is 300 mAh g-1. The charge capacity of the composite powders is 241 mAh g-1 after 30 cycles, at which point the capacity retention is 80%. The unique particle structure and phase homogeneity improve the cycle properties of the composite alloy powders.

AB - SnO2-CuO-C composite powders consisting of hollow-structured particles are directly prepared using template-free spray pyrolysis. Reduction of the composite powders at 1000°C produces Cu6Sn5-C composite powders containing a mixture of Cu5Sn6@void@C yolk-shell, Cu5Sn6 alloy, and hollow carbon particles. In the yolk-shell powder, mobile Cu5Sn6 powder particle is located inside the hollow hard-carbon powder particle. The mean sizes of the Cu5Sn6 alloy and carbon powders are 0.7 and 1.6 μm, respectively. The submicron Cu5Sn6 alloy powders are coated with a uniformly thin carbon layer. The initial charge and discharge capacities of the composite powders are 254 and 578 mAh g-1, respectively, at a high current density of 300 mA g-1. The charge capacity of the composite powders slightly increases with increasing number of cycles during the first three cycles. The maximum charge capacity of the composite powders is 300 mAh g-1. The charge capacity of the composite powders is 241 mAh g-1 after 30 cycles, at which point the capacity retention is 80%. The unique particle structure and phase homogeneity improve the cycle properties of the composite alloy powders.

KW - Aloy powder

KW - Anode materials

KW - Composite powders

KW - Spray pyrolysis

UR - http://www.scopus.com/inward/record.url?scp=84871160751&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84871160751&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84871160751

VL - 7

SP - 12531

EP - 12544

JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

SN - 1452-3981

IS - 12

ER -