Anion-trapping and polyanion electrolytes based on acid-in-chain borate polymers

Wu Xu; Xiao Guang Sun; Charles Angell

doi:10.1016/S0013-4686(03)00212-3

Anion-trapping and polyanion electrolytes based on acid-in-chain borate polymers

Wu Xu, Xiao Guang Sun, Charles Angell

Molecular Sciences, School of (SMS)

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Oligoether branched-and-spaced "acid-in-chain" polymers, with variable length side chains attached to the acidic borons have been prepared by a simple two-step reaction sequence. These may be used as anion-retarding hosts for "salt-in-polymer" electrolytes or, alternatively, may be converted to polyanionic electrolytes by reacting with strong Lewis base anions. High ionic conductivities, reaching 7.6×10^-5 S cm^-1 at 25°C have been obtained for the former case, using LiTFSI:B proportions of 1:1, and optimized side chain and spacer lengths. The electrochemical windows are wide enough (>4.5 V) for most applications.

Original language	English (US)
Pages (from-to)	2255-2266
Number of pages	12
Journal	Electrochimica Acta
Volume	48
Issue number	14-16 SPEC.
DOIs	https://doi.org/10.1016/S0013-4686(03)00212-3
State	Published - Jun 30 2003

Keywords

Acid-in-chain
Anion-trapping
Borate polymers

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

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10.1016/S0013-4686(03)00212-3

Cite this

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title = "Anion-trapping and polyanion electrolytes based on acid-in-chain borate polymers",

abstract = "Oligoether branched-and-spaced {"}acid-in-chain{"} polymers, with variable length side chains attached to the acidic borons have been prepared by a simple two-step reaction sequence. These may be used as anion-retarding hosts for {"}salt-in-polymer{"} electrolytes or, alternatively, may be converted to polyanionic electrolytes by reacting with strong Lewis base anions. High ionic conductivities, reaching 7.6×10-5 S cm-1 at 25°C have been obtained for the former case, using LiTFSI:B proportions of 1:1, and optimized side chain and spacer lengths. The electrochemical windows are wide enough (>4.5 V) for most applications.",

keywords = "Acid-in-chain, Anion-trapping, Borate polymers",

author = "Wu Xu and Sun, {Xiao Guang} and Charles Angell",

note = "Funding Information: This work was supported by Mitsubishi Chemical Corporation. We acknowledge also Dr. M.D. Williams and Dr. R.A. Nieman in the NMR Laboratory of the Department for analyses on 11 B nuclei under US NSF grant #CHE-9808678. ",

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T1 - Anion-trapping and polyanion electrolytes based on acid-in-chain borate polymers

AU - Xu, Wu

AU - Sun, Xiao Guang

AU - Angell, Charles

N1 - Funding Information: This work was supported by Mitsubishi Chemical Corporation. We acknowledge also Dr. M.D. Williams and Dr. R.A. Nieman in the NMR Laboratory of the Department for analyses on 11 B nuclei under US NSF grant #CHE-9808678.

PY - 2003/6/30

Y1 - 2003/6/30

N2 - Oligoether branched-and-spaced "acid-in-chain" polymers, with variable length side chains attached to the acidic borons have been prepared by a simple two-step reaction sequence. These may be used as anion-retarding hosts for "salt-in-polymer" electrolytes or, alternatively, may be converted to polyanionic electrolytes by reacting with strong Lewis base anions. High ionic conductivities, reaching 7.6×10-5 S cm-1 at 25°C have been obtained for the former case, using LiTFSI:B proportions of 1:1, and optimized side chain and spacer lengths. The electrochemical windows are wide enough (>4.5 V) for most applications.

AB - Oligoether branched-and-spaced "acid-in-chain" polymers, with variable length side chains attached to the acidic borons have been prepared by a simple two-step reaction sequence. These may be used as anion-retarding hosts for "salt-in-polymer" electrolytes or, alternatively, may be converted to polyanionic electrolytes by reacting with strong Lewis base anions. High ionic conductivities, reaching 7.6×10-5 S cm-1 at 25°C have been obtained for the former case, using LiTFSI:B proportions of 1:1, and optimized side chain and spacer lengths. The electrochemical windows are wide enough (>4.5 V) for most applications.

KW - Acid-in-chain

KW - Anion-trapping

KW - Borate polymers

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Anion-trapping and polyanion electrolytes based on acid-in-chain borate polymers

Abstract

Keywords

ASJC Scopus subject areas

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