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Multifunctional composites: Modeling intercalation induced stresses in constituents of micro-battery
KTH, School of Chemical Science and Engineering (CHE).
2016 (English)In: ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials, European Conference on Composite Materials, ECCM , 2016Conference paper (Refereed)
Abstract [en]

A structural battery that simultaneously carries mechanical loads while storing electrical energy offers the potential of significantly reduced total vehicle weight owing to the multifunctionality. Carbon fiber is employed as negative electrode of the battery and also as a composite reinforcement material. It is coated with a solid polymer electrolyte working as an ion conductor and separator whilst transferring mechanical loads. The coated fiber is surrounded by a conductive positive electrode material. This paper demonstrates a methodology for addressing mechanical stresses arising in a conceptualized micro battery cell during electrochemical cycling, caused by time dependent gradients in lithium ion concentration distribution in the carbon fiber. 

Place, publisher, year, edition, pages
European Conference on Composite Materials, ECCM , 2016.
Keywords [en]
Carbon fibers, Expansion, Intercalation, Lithium ion, Micro battery, Stress state, Composite materials, Electric batteries, Electrodes, Electrolytes, Fibers, Ions, Lithium alloys, Miniature batteries, Polyelectrolytes, Secondary batteries, Solid electrolytes, Composite reinforcement, Intercalation-induced stress, Lithium ions, Multifunctional composites, Positive electrode materials, Solid polymer electrolytes, Lithium-ion batteries
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-216850Scopus ID: 2-s2.0-85018537609ISBN: 9783000533877 OAI: oai:DiVA.org:kth-216850DiVA, id: diva2:1160853
Conference
17th European Conference on Composite Materials, ECCM 2016, 26 June 2016 through 30 June 2016
Note

Conference code: 126913; Export Date: 24 October 2017; Conference Paper; Funding details: 37712-1, Energimyndigheten; Funding text: The Swedish Energy Agency, project 37712-1 is acknowledged for financial support. KOMBATT-II project members are acknowledged for fruitful discussions. QC 20171128

Available from: 2017-11-28 Created: 2017-11-28 Last updated: 2017-11-28Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • ieee
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Output format
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