Elucidating the Li-Ion Battery Performance Benefits Enabled by Multifunctional Separators

Hanshuo Liu; Anjan Banerjee; Baruch Ziv; Kristopher J. Harris; Nicholas P.W. Pieczonka; Shalom Luski; Gianluigi A. Botton; Gillian R. Goward; Doron Aurbach; Ion C. Halalay

doi:10.1021/acsaem.8b00436

Elucidating the Li-Ion Battery Performance Benefits Enabled by Multifunctional Separators

Hanshuo Liu, Anjan Banerjee, Baruch Ziv, Kristopher J. Harris, Nicholas P.W. Pieczonka, Shalom Luski, Gianluigi A. Botton, Gillian R. Goward, Doron Aurbach, Ion C. Halalay

Department of Chemistry

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

12 Scopus citations

Abstract

The dissolution of transition metal ions from positive electrodes and loss of (both electroactive and transport) Li⁺ ions seriously impair the durability of lithium ion batteries. We show herein that the improvement in the cycle life of lithium manganate spinel-graphite cells effected by multifunctional separators results from smaller interfacial resistances at both positive and negative electrodes, that can in turn be traced back to thinner, more uniform, and chemically different surface films, due to lessened parasitic reactions and a decreased accumulation of parasitic reaction products at electrode surfaces, as evidenced by HR-SEM, FIB-SEM, EDX, ¹⁹F MAS NMR, and ICP-OES data.

Original language	English
Pages (from-to)	1878-1882
Number of pages	5
Journal	ACS Applied Energy Materials
Volume	1
Issue number	5
DOIs	https://doi.org/10.1021/acsaem.8b00436
State	Published - 29 May 2018

Bibliographical note

Publisher Copyright:
© 2018 American Chemical Society.

Funding

Partial support for this work was obtained from the Israel Science Foundation in the framework of the INREP project and from the National Science and Engineering Research Council of Canada, Grant CRDPJ494074-16.

Funders	Funder number
National Science and Engineering Research Council of Canada	CRDPJ494074-16
Israel Science Foundation

Keywords

FIB-SEM
Li-ion batteries
LiMnO
Mn dissolution
SEI
functional separator
graphite
ion-exchange resin

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acsaem.8b00436

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title = "Elucidating the Li-Ion Battery Performance Benefits Enabled by Multifunctional Separators",

abstract = "The dissolution of transition metal ions from positive electrodes and loss of (both electroactive and transport) Li+ ions seriously impair the durability of lithium ion batteries. We show herein that the improvement in the cycle life of lithium manganate spinel-graphite cells effected by multifunctional separators results from smaller interfacial resistances at both positive and negative electrodes, that can in turn be traced back to thinner, more uniform, and chemically different surface films, due to lessened parasitic reactions and a decreased accumulation of parasitic reaction products at electrode surfaces, as evidenced by HR-SEM, FIB-SEM, EDX, 19F MAS NMR, and ICP-OES data.",

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author = "Hanshuo Liu and Anjan Banerjee and Baruch Ziv and Harris, {Kristopher J.} and Pieczonka, {Nicholas P.W.} and Shalom Luski and Botton, {Gianluigi A.} and Goward, {Gillian R.} and Doron Aurbach and Halalay, {Ion C.}",

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AU - Banerjee, Anjan

AU - Ziv, Baruch

AU - Harris, Kristopher J.

AU - Pieczonka, Nicholas P.W.

AU - Luski, Shalom

AU - Botton, Gianluigi A.

AU - Goward, Gillian R.

AU - Aurbach, Doron

AU - Halalay, Ion C.

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AB - The dissolution of transition metal ions from positive electrodes and loss of (both electroactive and transport) Li+ ions seriously impair the durability of lithium ion batteries. We show herein that the improvement in the cycle life of lithium manganate spinel-graphite cells effected by multifunctional separators results from smaller interfacial resistances at both positive and negative electrodes, that can in turn be traced back to thinner, more uniform, and chemically different surface films, due to lessened parasitic reactions and a decreased accumulation of parasitic reaction products at electrode surfaces, as evidenced by HR-SEM, FIB-SEM, EDX, 19F MAS NMR, and ICP-OES data.

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KW - Li-ion batteries

KW - LiMnO

KW - Mn dissolution

KW - SEI

KW - functional separator

KW - graphite

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Elucidating the Li-Ion Battery Performance Benefits Enabled by Multifunctional Separators

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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