Cell characterization and modeling of lithium ion batteries

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dc.contributor.authorSträngberg, Victor
dc.contributor.departmentChalmers tekniska högskola / Institutionen för energi och miljösv
dc.contributor.departmentChalmers University of Technology / Department of Energy and Environmenten
dc.date.accessioned2019-07-03T14:21:27Z
dc.date.available2019-07-03T14:21:27Z
dc.date.issued2016
dc.description.abstractThe purpose with this thesis was to estimate the parameters from one of the electrical equivalent circuits that are used for batteries. Two different batteries with different chemistries have been tested. First measurements at different frequencies have been performed to obtain the impedance at a specific frequency. When the impedance is known, the information can be used in a Nyquist diagram, where two parameters can be estimated, then the rest of the parameters are calculated from transfer functions. Two methods have been tested to achieve the parameter values. This thesis has tested two batteries at different State of charge and temperatures. The State of charge have been tested from either 0 - 100 % or 100 - 0 % State of charge and the temperatures have been tested between 0° C and 40° C.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/243835
dc.language.isoeng
dc.setspec.uppsokLifeEarthScience
dc.subjectElkraftteknik
dc.subjectElectric power engineering
dc.titleCell characterization and modeling of lithium ion batteries
dc.type.degreeExamensarbete på grundnivåsv
dc.type.uppsokM
local.programmeElektroteknik 180 hp (högskoleingenjör)
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