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An exploration of Li-ion cell relaxation using EIS
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Barai, Anup, Guo, Yue, McGordon, Andrew and Jennings, P. A. (Paul A.) (2014) An exploration of Li-ion cell relaxation using EIS. In: FISITA world automotive congress, Maastricht, Netherlands, 2-6 Jun 2014
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WRAP_F2014-EPT-057 AN EXPLORATION OF LI-ION CELL RELAXATION USING EIS_Submitted.pdf - Submitted Version - Requires a PDF viewer. Download (1110Kb) | Preview |
Abstract
This paper describes a systematic study of the effect of cell relaxation after a charge or discharge event. The EIS technique was used to investigate how the properties of the cells changed with time after charge or discharge up to a maximum of 15 hours. It was found that different chemistries show different relaxation rates and frequency dependence of Ro and Rd. The cells still showed a relaxation at 15 hours after a charge/discharge event. A suggested compromise of measurement accuracy and test length is to measure the properties of cells 4 hours after a charge/discharge event.
| Item Type: | Conference Item (Paper) | ||||
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| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics | ||||
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Library of Congress Subject Headings (LCSH): | Lithium ion batteries | ||||
| Official Date: | 2014 | ||||
| Dates: |
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| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Funder: | Warwick Manufacturing Group | ||||
| Conference Paper Type: | Paper | ||||
| Title of Event: | FISITA world automotive congress | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Maastricht, Netherlands | ||||
| Date(s) of Event: | 2-6 Jun 2014 | ||||
| Related URLs: |
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