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Characterisation and modelling of a high-power density lithium-ion positive electrode for HEV application
KTH, Superseded Departments, Chemical Engineering and Technology.
KTH, Superseded Departments, Chemical Engineering and Technology.
KTH, Superseded Departments, Chemical Engineering and Technology.ORCID iD: 0000-0002-9392-9059
KTH, Superseded Departments, Chemical Engineering and Technology.ORCID iD: 0000-0001-9203-9313
2004 (English)Conference paper, Published paper (Refereed)
Abstract [en]

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.
Series
Proceedings - Electrochemical Society, PV 2003-28
Keyword [en]
Capacitance, Characterization, Electric impedance, Electrolytes, Lithium batteries, Particle size analysis, Double layer capacitance, Equilibrium potential, Lithium-ion positive electrode, Electrodes
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-157299Scopus ID: 2-s2.0-33645275994OAI: oai:DiVA.org:kth-157299DiVA: diva2:771036
Conference
205th Electrochemical Society Fall Meeting, 12 October 2003 through 16 October 2003, Orlando, FL
Note

QC 20141212

Available from: 2014-12-12 Created: 2014-12-08 Last updated: 2014-12-12Bibliographically approved

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Behm, MårtenLindbergh, Göran

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