Characterisation and modelling of a high-power density lithium-ion positive electrode for HEV application
2004 (English)Conference paper (Refereed)
In this study, the impedance response of a porous electrode based on LiNi0.8Co0.15Al0.05O2 was investigated using an impedance model including the following features: Butler-Volmer kinetics; double layer capacitance; solid phase concentration and potential gradients; electrolyte phase concentration and potential according to the concentrated electrolyte theory; particle size distribution; and an empirical relation between equilibrium potential and state of charge. The model was evaluated by fitting it to experimental results using different electrolytes and states of charge. In addition, the characteristic parameters for the electrode were obtained from the fitting results.
Place, publisher, year, edition, pages
2004. 130-137 p.
, Proceedings - Electrochemical Society, PV 2003-28
Capacitance, Characterization, Electric impedance, Electrolytes, Lithium batteries, Particle size analysis, Double layer capacitance, Equilibrium potential, Lithium-ion positive electrode, Electrodes
IdentifiersURN: urn:nbn:se:kth:diva-157299ScopusID: 2-s2.0-33645275994OAI: oai:DiVA.org:kth-157299DiVA: diva2:771036
205th Electrochemical Society Fall Meeting, 12 October 2003 through 16 October 2003, Orlando, FL
QC 201412122014-12-122014-12-082014-12-12Bibliographically approved