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Multiphysics modeling of mechanical and electrochemical phenomena in structural composites for energy storage: Single carbon fiber micro-battery
Lulea Univ Technol, Dept Engn Sci & Math, S-97189 Lulea, Sweden..
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Kemiteknik.ORCID-id: 0000-0001-9203-9313
Lulea Univ Technol, Dept Engn Sci & Math, S-97189 Lulea, Sweden..
2018 (engelsk)Inngår i: Journal of reinforced plastics and composites (Print), ISSN 0731-6844, E-ISSN 1530-7964, Vol. 37, nr 10, s. 701-715Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper presents a framework for multiphysics modeling of a novel type of multifunctional composite material, structured on microscale, with ability to function as battery cell in addition to carry mechanical load. The micro-battery consists of a single carbon fiber surrounded by very thin solid electrolyte coating and embedded in a matrix which is a porous material containing active particles able to intercalate lithium. During battery operation (discharging and charging) the structural battery constituents undergo volume changes, caused by lithium-ion movement. The presented mathematical model is solved numerically using COMSOL software and results are used to analyze the physical phenomena occurring in the structural battery material. Parametric analysis is performed to reveal the significance of geometrical parameters like fiber volume fraction in the battery and the porosity content in the matrix on the multifunctional performance of the composite unit including its swelling/shrinking during charging/discharging.

sted, utgiver, år, opplag, sider
SAGE PUBLICATIONS LTD , 2018. Vol. 37, nr 10, s. 701-715
Emneord [en]
Carbon fiber, lithium-ion battery, multiphysics modeling
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-228436DOI: 10.1177/0731684418760207ISI: 000432091800004Scopus ID: 2-s2.0-85044727567OAI: oai:DiVA.org:kth-228436DiVA, id: diva2:1210677
Merknad

QC 20180529

Tilgjengelig fra: 2018-05-29 Laget: 2018-05-29 Sist oppdatert: 2018-11-23bibliografisk kontrollert

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