Micromechanical Testing of Pristine and Delithiated Single Carbon Fibres for Structural Battery Composite

dc.contributor.authorRavindranath, Sreehari Batni
dc.contributor.departmentChalmers tekniska högskola / Institutionen för industri- och materialvetenskapsv
dc.contributor.examinerLiu, Fang
dc.contributor.supervisorJohansen, Marcus
dc.date.accessioned2021-10-19T13:34:49Z
dc.date.available2021-10-19T13:34:49Z
dc.date.issued2021sv
dc.date.submitted2020
dc.description.abstractReduction of mass of the battery system in electric vehicles (EV) is one of the major requirements of the use of EV in place of internal combustion (IC) engines. A novel solution to reduce the mass of the system is by replacing the present battery material with multifunctional material. These are the materials that can simultaneously carry the load and act as an electrode for the battery system. In this study, carbon fibre is used as a candidate multifunctional material. This project aims to examine the tensile strength, modulus, and Weibull distribution of pristine and delithiated single carbon fibre. The tensile properties of 25 mm and 15 mm gauge length fibres were examined using a microtester. The fractured surface was investigated with SEM and EDX. The delithiation doesn’t affect the tensile modulus of the fibre. A considerable amount of difference was detected in the Weibull modulus. The Weibull value ’m’ is high for pristine fibre and a bit less for delithiated fibres. The SEM and EDX results showed that there is a slight change in the surface morphology of fibre and an increase in the content of oxygen in delithiated fibres. This can be due to the remnants of lithium from lithiation and delithiation which were oxidized once they were exposed to the atmosphere.sv
dc.identifier.coursecodeIMSX30sv
dc.identifier.urihttps://hdl.handle.net/20.500.12380/304268
dc.language.isoengsv
dc.setspec.uppsokTechnology
dc.subjectStructural battery compositesv
dc.subjectlithiation/delithiationsv
dc.subjectfractographysv
dc.subjectWeibull modulussv
dc.subjectmicrotestersv
dc.titleMicromechanical Testing of Pristine and Delithiated Single Carbon Fibres for Structural Battery Compositesv
dc.type.degreeExamensarbete för masterexamensv
dc.type.uppsokH
Ladda ner
Original bundle
Visar 1 - 1 av 1
Bild (thumbnail)
Namn:
Thesis_report_Sreehari_Batni_Ravindranath.pdf
Storlek:
31.1 MB
Format:
Adobe Portable Document Format
Beskrivning:
License bundle
Visar 1 - 1 av 1
Bild saknas
Namn:
license.txt
Storlek:
1.51 KB
Format:
Item-specific license agreed upon to submission
Beskrivning: