The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs)

LIBs have been widely used for electronics and electric vehicles (EVs). Apart from the electrochemically active electrodes, separator also plays an important role in the battery performance. Due to the low electrolyte uptake and low thermal stability of commercial polyolefin membrane separators, cer...

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Main Author: Shen, Yuejun
Other Authors: Alex Yan Qingyu
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2022
Subjects:
Online Access:https://hdl.handle.net/10356/156071
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1560712022-03-31T07:24:02Z The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs) Shen, Yuejun Alex Yan Qingyu School of Materials Science and Engineering AlexYan@ntu.edu.sg Engineering::Materials LIBs have been widely used for electronics and electric vehicles (EVs). Apart from the electrochemically active electrodes, separator also plays an important role in the battery performance. Due to the low electrolyte uptake and low thermal stability of commercial polyolefin membrane separators, ceramic-coated separators have attracted tremendous attentions. However, the commonly used non-aqueous polymer binders have a low binding strength and cause environmental pollution. In this work, aqueous PAA was used as the binder for alumina coating. By comparing two PAA binders with contrasting molecular weights (MW), we observed a better thermal stability and ion redistribution capability in the coated separator with high MW PAA binder. We concluded this work by proposing possible solutions to improve the structural integrity of the coating. Bachelor of Engineering (Materials Engineering) 2022-03-31T07:24:02Z 2022-03-31T07:24:02Z 2022 Final Year Project (FYP) Shen, Y. (2022). The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs). Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/156071 https://hdl.handle.net/10356/156071 en application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
spellingShingle Engineering::Materials
Shen, Yuejun
The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs)
description LIBs have been widely used for electronics and electric vehicles (EVs). Apart from the electrochemically active electrodes, separator also plays an important role in the battery performance. Due to the low electrolyte uptake and low thermal stability of commercial polyolefin membrane separators, ceramic-coated separators have attracted tremendous attentions. However, the commonly used non-aqueous polymer binders have a low binding strength and cause environmental pollution. In this work, aqueous PAA was used as the binder for alumina coating. By comparing two PAA binders with contrasting molecular weights (MW), we observed a better thermal stability and ion redistribution capability in the coated separator with high MW PAA binder. We concluded this work by proposing possible solutions to improve the structural integrity of the coating.
author2 Alex Yan Qingyu
author_facet Alex Yan Qingyu
Shen, Yuejun
format Final Year Project
author Shen, Yuejun
author_sort Shen, Yuejun
title The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs)
title_short The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs)
title_full The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs)
title_fullStr The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs)
title_full_unstemmed The effect of polyacrylic Acid (PAA) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (LIBs)
title_sort effect of polyacrylic acid (paa) binder molecular weight on the performance of alumina-coated polyolefin separator for lithium-ion batteries (libs)
publisher Nanyang Technological University
publishDate 2022
url https://hdl.handle.net/10356/156071
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