Influence of polymer I-polymer II compatibility on conductivity in low-dimensional polymer electrolyte blends

F. S. Chia; Y. Zheng; J. Liu; G. Ungar; P. V. Wright

doi:10.1016/S0167-2738(02)00031-0

Influence of polymer I-polymer II compatibility on conductivity in low-dimensional polymer electrolyte blends

F. S. Chia
, Y. Zheng
, J. Liu
, G. Ungar
, P. V. Wright

University of Sheffield

Research output: Contribution to journal › Conference article › peer-review

13 Scopus citations

Abstract

The preparation of polymer electrolyte blends of the amphiphilic helical poly[2,5,8,11,14-pentaoxapentadecarnethylene(5-a1kyloxy-1,3-phenylene)] (polymer I), a copolymer of tetrarnethylene oxide with -(CH₂)₁₂- segments (polymer II) and lithium salts, either Li(CF₃SO₃)₂N (Li TFSI) or a 50/50 mixture of LiBF₄ and LiCIO₄ is described. The DC polarisation of cells Li|I:II:LiX|Li gives polymer electrolyte conductivities σ = 10^-4 S cm^-1 at 20 °C for TFSI anions, slightly higher than complex impedance measurements (4 × 10^-5 S cm^-1) for the same system. However, conductivities ca. 10^-2 S cm^-1 at 30 °C are observed for the LiBF₄-LiClO₄ mixture. The higher results for the latter are attributed to more extensive ionic pathways. Furthermore, the use of polymer II incorporating -(CH₂)₁₂- segments gives higherresults than in their absence. This is attributed to improved blending by interactions between the -(CH₂)₁₂- segments and the alkyl sidechains of I.

Original language	English
Pages (from-to)	275-280
Number of pages	6
Journal	Solid State Ionics
Volume	147
Issue number	3-4
DOIs	https://doi.org/10.1016/S0167-2738(02)00031-0
State	Published - Apr 2002
Externally published	Yes
Event	2001 Polymer Electronic Sympoiusm (PES2001) - Noorderwijkerhout, Netherlands Duration: 14 May 2001 → 16 May 2001

Keywords

Polymer I
Polymer II
Polymer electrolyte blend

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10.1016/S0167-2738(02)00031-0

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title = "Influence of polymer I-polymer II compatibility on conductivity in low-dimensional polymer electrolyte blends",

abstract = "The preparation of polymer electrolyte blends of the amphiphilic helical poly[2,5,8,11,14-pentaoxapentadecarnethylene(5-a1kyloxy-1,3-phenylene)] (polymer I), a copolymer of tetrarnethylene oxide with -(CH2)12- segments (polymer II) and lithium salts, either Li(CF3SO3)2N (Li TFSI) or a 50/50 mixture of LiBF4 and LiCIO4 is described. The DC polarisation of cells Li|I:II:LiX|Li gives polymer electrolyte conductivities σ = 10-4 S cm-1 at 20 °C for TFSI anions, slightly higher than complex impedance measurements (4 × 10-5 S cm-1) for the same system. However, conductivities ca. 10-2 S cm-1 at 30 °C are observed for the LiBF4-LiClO4 mixture. The higher results for the latter are attributed to more extensive ionic pathways. Furthermore, the use of polymer II incorporating -(CH2)12- segments gives higherresults than in their absence. This is attributed to improved blending by interactions between the -(CH2)12- segments and the alkyl sidechains of I.",

keywords = "Polymer I, Polymer II, Polymer electrolyte blend",

author = "Chia, \{F. S.\} and Y. Zheng and J. Liu and G. Ungar and Wright, \{P. V.\}",

year = "2002",

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volume = "147",

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}

TY - JOUR

T1 - Influence of polymer I-polymer II compatibility on conductivity in low-dimensional polymer electrolyte blends

AU - Chia, F. S.

AU - Zheng, Y.

AU - Liu, J.

AU - Ungar, G.

AU - Wright, P. V.

PY - 2002/4

Y1 - 2002/4

N2 - The preparation of polymer electrolyte blends of the amphiphilic helical poly[2,5,8,11,14-pentaoxapentadecarnethylene(5-a1kyloxy-1,3-phenylene)] (polymer I), a copolymer of tetrarnethylene oxide with -(CH2)12- segments (polymer II) and lithium salts, either Li(CF3SO3)2N (Li TFSI) or a 50/50 mixture of LiBF4 and LiCIO4 is described. The DC polarisation of cells Li|I:II:LiX|Li gives polymer electrolyte conductivities σ = 10-4 S cm-1 at 20 °C for TFSI anions, slightly higher than complex impedance measurements (4 × 10-5 S cm-1) for the same system. However, conductivities ca. 10-2 S cm-1 at 30 °C are observed for the LiBF4-LiClO4 mixture. The higher results for the latter are attributed to more extensive ionic pathways. Furthermore, the use of polymer II incorporating -(CH2)12- segments gives higherresults than in their absence. This is attributed to improved blending by interactions between the -(CH2)12- segments and the alkyl sidechains of I.

AB - The preparation of polymer electrolyte blends of the amphiphilic helical poly[2,5,8,11,14-pentaoxapentadecarnethylene(5-a1kyloxy-1,3-phenylene)] (polymer I), a copolymer of tetrarnethylene oxide with -(CH2)12- segments (polymer II) and lithium salts, either Li(CF3SO3)2N (Li TFSI) or a 50/50 mixture of LiBF4 and LiCIO4 is described. The DC polarisation of cells Li|I:II:LiX|Li gives polymer electrolyte conductivities σ = 10-4 S cm-1 at 20 °C for TFSI anions, slightly higher than complex impedance measurements (4 × 10-5 S cm-1) for the same system. However, conductivities ca. 10-2 S cm-1 at 30 °C are observed for the LiBF4-LiClO4 mixture. The higher results for the latter are attributed to more extensive ionic pathways. Furthermore, the use of polymer II incorporating -(CH2)12- segments gives higherresults than in their absence. This is attributed to improved blending by interactions between the -(CH2)12- segments and the alkyl sidechains of I.

KW - Polymer I

KW - Polymer II

KW - Polymer electrolyte blend

UR - https://www.scopus.com/pages/publications/0036534051

U2 - 10.1016/S0167-2738(02)00031-0

DO - 10.1016/S0167-2738(02)00031-0

M3 - 会议文章

AN - SCOPUS:0036534051

SN - 0167-2738

VL - 147

SP - 275

EP - 280

JO - Solid State Ionics

JF - Solid State Ionics

IS - 3-4

T2 - 2001 Polymer Electronic Sympoiusm (PES2001)

Y2 - 14 May 2001 through 16 May 2001

ER -

Influence of polymer I-polymer II compatibility on conductivity in low-dimensional polymer electrolyte blends

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Keywords

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