Effect of conducting additives on the properties of composite cathodes for lithium-ion batteries

Jong Hyeok Park, Sang Young Lee, Jong Hun Kim, Soonho Ahn, Jae Sung Park, Yeon Uk Jeong

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In an attempt to achieve lithium-ion batteries with high rate capability, the effect of conducting additives with various shapes and contents on the physical and electrochemical performances was evaluated. Although the density of the cathode decreased upon the addition of the additives, the electrical conductivity and electrochemical performance were greatly improved. The composite cathodes with well-dispersed multi-walled carbon nanotubes (MWCNTs) exhibited excellent high rate capabilities and cyclabilities. In the case of cathode with 8 wt.% of MWCNTs (low density-LD), the highest discharge capacity of 136 mAh/g was obtained at 5 C-rate and capacity retention of 97% for 50 cycles was observed at 1 C-rate of discharge. The cathode with a mixture of 2 wt.% of Super P and 4 wt.% of MWCNTs (LD) also exhibits improved cycle performances. The volume changes in the charge and discharge processes were successfully controlled by the bundles distributed between the host particles.

Original languageEnglish
Pages (from-to)593-597
Number of pages5
JournalJournal of Solid State Electrochemistry
Volume14
Issue number4
DOIs
Publication statusPublished - 2010 Jan 1

Fingerprint

Carbon Nanotubes
electric batteries
Cathodes
lithium
cathodes
conduction
Carbon nanotubes
composite materials
carbon nanotubes
Composite materials
ions
cycles
bundles
electrical resistivity
Lithium-ion batteries

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Park, Jong Hyeok ; Lee, Sang Young ; Kim, Jong Hun ; Ahn, Soonho ; Park, Jae Sung ; Jeong, Yeon Uk. / Effect of conducting additives on the properties of composite cathodes for lithium-ion batteries. In: Journal of Solid State Electrochemistry. 2010 ; Vol. 14, No. 4. pp. 593-597.
@article{9de161939c32466bbb7e815a05e011db,
title = "Effect of conducting additives on the properties of composite cathodes for lithium-ion batteries",
abstract = "In an attempt to achieve lithium-ion batteries with high rate capability, the effect of conducting additives with various shapes and contents on the physical and electrochemical performances was evaluated. Although the density of the cathode decreased upon the addition of the additives, the electrical conductivity and electrochemical performance were greatly improved. The composite cathodes with well-dispersed multi-walled carbon nanotubes (MWCNTs) exhibited excellent high rate capabilities and cyclabilities. In the case of cathode with 8 wt.{\%} of MWCNTs (low density-LD), the highest discharge capacity of 136 mAh/g was obtained at 5 C-rate and capacity retention of 97{\%} for 50 cycles was observed at 1 C-rate of discharge. The cathode with a mixture of 2 wt.{\%} of Super P and 4 wt.{\%} of MWCNTs (LD) also exhibits improved cycle performances. The volume changes in the charge and discharge processes were successfully controlled by the bundles distributed between the host particles.",
author = "Park, {Jong Hyeok} and Lee, {Sang Young} and Kim, {Jong Hun} and Soonho Ahn and Park, {Jae Sung} and Jeong, {Yeon Uk}",
year = "2010",
month = "1",
day = "1",
doi = "10.1007/s10008-009-0814-5",
language = "English",
volume = "14",
pages = "593--597",
journal = "Journal of Solid State Electrochemistry",
issn = "1432-8488",
publisher = "Springer Verlag",
number = "4",

}

Effect of conducting additives on the properties of composite cathodes for lithium-ion batteries. / Park, Jong Hyeok; Lee, Sang Young; Kim, Jong Hun; Ahn, Soonho; Park, Jae Sung; Jeong, Yeon Uk.

In: Journal of Solid State Electrochemistry, Vol. 14, No. 4, 01.01.2010, p. 593-597.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of conducting additives on the properties of composite cathodes for lithium-ion batteries

AU - Park, Jong Hyeok

AU - Lee, Sang Young

AU - Kim, Jong Hun

AU - Ahn, Soonho

AU - Park, Jae Sung

AU - Jeong, Yeon Uk

PY - 2010/1/1

Y1 - 2010/1/1

N2 - In an attempt to achieve lithium-ion batteries with high rate capability, the effect of conducting additives with various shapes and contents on the physical and electrochemical performances was evaluated. Although the density of the cathode decreased upon the addition of the additives, the electrical conductivity and electrochemical performance were greatly improved. The composite cathodes with well-dispersed multi-walled carbon nanotubes (MWCNTs) exhibited excellent high rate capabilities and cyclabilities. In the case of cathode with 8 wt.% of MWCNTs (low density-LD), the highest discharge capacity of 136 mAh/g was obtained at 5 C-rate and capacity retention of 97% for 50 cycles was observed at 1 C-rate of discharge. The cathode with a mixture of 2 wt.% of Super P and 4 wt.% of MWCNTs (LD) also exhibits improved cycle performances. The volume changes in the charge and discharge processes were successfully controlled by the bundles distributed between the host particles.

AB - In an attempt to achieve lithium-ion batteries with high rate capability, the effect of conducting additives with various shapes and contents on the physical and electrochemical performances was evaluated. Although the density of the cathode decreased upon the addition of the additives, the electrical conductivity and electrochemical performance were greatly improved. The composite cathodes with well-dispersed multi-walled carbon nanotubes (MWCNTs) exhibited excellent high rate capabilities and cyclabilities. In the case of cathode with 8 wt.% of MWCNTs (low density-LD), the highest discharge capacity of 136 mAh/g was obtained at 5 C-rate and capacity retention of 97% for 50 cycles was observed at 1 C-rate of discharge. The cathode with a mixture of 2 wt.% of Super P and 4 wt.% of MWCNTs (LD) also exhibits improved cycle performances. The volume changes in the charge and discharge processes were successfully controlled by the bundles distributed between the host particles.

UR - http://www.scopus.com/inward/record.url?scp=78649500137&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649500137&partnerID=8YFLogxK

U2 - 10.1007/s10008-009-0814-5

DO - 10.1007/s10008-009-0814-5

M3 - Article

AN - SCOPUS:78649500137

VL - 14

SP - 593

EP - 597

JO - Journal of Solid State Electrochemistry

JF - Journal of Solid State Electrochemistry

SN - 1432-8488

IS - 4

ER -