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Analytical model for interlaminarstresses in unsymmetric laminates:: A study of laminated structural batteries duringLi-ion intercalation
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
2017 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The aim of this thesis is to develop a mechanical model to simulate the behaviorof a structural battery cell during charging cycles. The cell can be modeledas a three layer laminate, composed of anode, separator and cathode. The layersexpand and contract differently during the charging cycle, when Li-ionsare transferred from the cathode to the anode. CLPT is used to obtain farfield stresses and strains and an analytical method, based on Kassapoglou’stheory, is developed to evaluate the risk of delamination due to interlaminarstresses. Depending on the required and allowable stresses and strains, designrecommendations are given for battery and mechanical actuators applications.

Place, publisher, year, edition, pages
2017. , p. 104
Series
TRITA-AVE, ISSN 1651-7660 ; 2017:20
Keywords [en]
Structural Battery, Li-ion intercalation, Expansion, CLPT, Interlaminar stresses
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-209423OAI: oai:DiVA.org:kth-209423DiVA, id: diva2:1111891
Examiners
Available from: 2017-06-19 Created: 2017-06-19 Last updated: 2017-07-20Bibliographically approved

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