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A New Methodology for Evaluating the High-Power Behavior of a Li-ion Battery Cell
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Applied Electrochemistry.
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Applied Electrochemistry.
Swerea.ORCID iD: 0000-0002-0861-7342
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Applied Electrochemistry.ORCID iD: 0000-0002-9392-9059
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2010 (English)In: Rechargeable Lithium-Ion Batteries, Electrochemical Society, 2010, no 36, 253-262 p.Conference paper, Published paper (Refereed)
Abstract [en]

The internal sources of polarization are calculated and investigated for a graphite (MAG-10) vertical bar 1.2 M LiPF6 in EC: EMC (3: 7 by weight) vertical bar LiNi0.8Co0.15Al0.05O2 battery cell at SOC 40 and 80. A method is developed where the total polarization of the battery cell is split up into six polarizing subprocesses. The method involves two steps; the solving of an experimentally validated model that describes the dynamics of the battery cell during e. g. a hybrid pulse power characterization test and the use of the modeled cell's local potential, concentration profiles and local current density to calculate the internal losses. With this analysis the sources of polarization during an EUCAR test cycle are determined. The major factor limiting the performance is associated with the mass transport in the electrolyte.

Place, publisher, year, edition, pages
Electrochemical Society, 2010. no 36, 253-262 p.
Series
ECS Transactions, ISSN 1938-5862 ; 25
Keyword [en]
Positive Electrodes, Porous-Electrodes, Insertion Cell, Lithium, Impedance, Discharge, Fade, Tool
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-138109DOI: 10.1149/1.3393861ISI: 000313480900026Scopus ID: 2-s2.0-79952775962ISBN: 978-1-56677-810-7 (print)OAI: oai:DiVA.org:kth-138109DiVA: diva2:680459
Conference
Symposium on Rechargeable Lithium and Lithium-Ion Batteries Held During the 216th Meeting of the Electrochemical-Society (ECS), OCT 04-09, 2009, Vienna, Austria
Note

QC 20131218

Available from: 2013-12-18 Created: 2013-12-18 Last updated: 2013-12-18Bibliographically approved

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Elger, RagnaBehm, MårtenLindbergh, Göran

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