Effect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power Properties
Aqueous-based C/LiFePO4 positive electrodes with high-rate capabilities are described with an intended application in lithium ion batteries. Pastes consisting of C/LiFePO4 particles, sodium carboxymethyl cellulose (CMC), water-soluble elastome...
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2014-03-01
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doaj-c6b5d752c9f945418ccf9bf9c023bfce2021-02-03T00:58:52ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372014-03-0127023924510.14356/kona.2009022konaEffect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power PropertiesJin-Hyon Lee0Hyun-Ho Kim1Sung-Bok Wee2Ungyu Paik3Division of Materials Science Engineering, Hanyang UniversityDivision of Materials Science Engineering, Hanyang UniversityDivision of Materials Science Engineering, Hanyang UniversityDivision of Materials Science Engineering, Hanyang UniversityAqueous-based C/LiFePO4 positive electrodes with high-rate capabilities are described with an intended application in lithium ion batteries. Pastes consisting of C/LiFePO4 particles, sodium carboxymethyl cellulose (CMC), water-soluble elastomeric binder (WSB) and poly (acrylic acid) (PAA) were prepared in an aqueous medium and tape-cast onto an aluminum foil. It was found that the incorporation of PAA significantly decreased the apparent viscosity of the C/LiFePO4 paste as well as shifted particle size distribution to lower value, which resulted in an improvement of the C/LiFePO4 dispersion properties. A correlation was made between the dispersion properties and the electrochemical properties. The electrochemical properties indicated that the electrode with PAA exhibited a discharge specific capacity above 70 mAhg−1 at 20C, which was about seven times higher than the discharge specific capacity without PAA at 20C which showed a discharge specific capacity of only 10 mAhg−1. This was attributed to the formation of a resistance-imparting agglomeration, which is consistent with the dispersion properties of C/LiFePO4 particles.https://www.jstage.jst.go.jp/article/kona/27/0/27_2009022/_pdf/-char/enlithium ion batteryolivinepoly (acrylic acid)dispersionelectrochemical properties |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jin-Hyon Lee Hyun-Ho Kim Sung-Bok Wee Ungyu Paik |
spellingShingle |
Jin-Hyon Lee Hyun-Ho Kim Sung-Bok Wee Ungyu Paik Effect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power Properties KONA Powder and Particle Journal lithium ion battery olivine poly (acrylic acid) dispersion electrochemical properties |
author_facet |
Jin-Hyon Lee Hyun-Ho Kim Sung-Bok Wee Ungyu Paik |
author_sort |
Jin-Hyon Lee |
title |
Effect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power Properties |
title_short |
Effect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power Properties |
title_full |
Effect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power Properties |
title_fullStr |
Effect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power Properties |
title_full_unstemmed |
Effect of Additives on the Dispersion Properties of Aqueous Based C/LiFePO4 paste and its Impact on Lithium Ion Battery High Power Properties |
title_sort |
effect of additives on the dispersion properties of aqueous based c/lifepo4 paste and its impact on lithium ion battery high power properties |
publisher |
Hosokawa Powder Technology Foundation |
series |
KONA Powder and Particle Journal |
issn |
0288-4534 2187-5537 |
publishDate |
2014-03-01 |
description |
Aqueous-based C/LiFePO4 positive electrodes with high-rate capabilities are described with an intended application in lithium ion batteries. Pastes consisting of C/LiFePO4 particles, sodium carboxymethyl cellulose (CMC), water-soluble elastomeric binder (WSB) and poly (acrylic acid) (PAA) were prepared in an aqueous medium and tape-cast onto an aluminum foil. It was found that the incorporation of PAA significantly decreased the apparent viscosity of the C/LiFePO4 paste as well as shifted particle size distribution to lower value, which resulted in an improvement of the C/LiFePO4 dispersion properties. A correlation was made between the dispersion properties and the electrochemical properties. The electrochemical properties indicated that the electrode with PAA exhibited a discharge specific capacity above 70 mAhg−1 at 20C, which was about seven times higher than the discharge specific capacity without PAA at 20C which showed a discharge specific capacity of only 10 mAhg−1. This was attributed to the formation of a resistance-imparting agglomeration, which is consistent with the dispersion properties of C/LiFePO4 particles. |
topic |
lithium ion battery olivine poly (acrylic acid) dispersion electrochemical properties |
url |
https://www.jstage.jst.go.jp/article/kona/27/0/27_2009022/_pdf/-char/en |
work_keys_str_mv |
AT jinhyonlee effectofadditivesonthedispersionpropertiesofaqueousbasedclifepo4pasteanditsimpactonlithiumionbatteryhighpowerproperties AT hyunhokim effectofadditivesonthedispersionpropertiesofaqueousbasedclifepo4pasteanditsimpactonlithiumionbatteryhighpowerproperties AT sungbokwee effectofadditivesonthedispersionpropertiesofaqueousbasedclifepo4pasteanditsimpactonlithiumionbatteryhighpowerproperties AT ungyupaik effectofadditivesonthedispersionpropertiesofaqueousbasedclifepo4pasteanditsimpactonlithiumionbatteryhighpowerproperties |
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