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Investigating the aging effect of current ripple on lithium-ion cells
KTH, Skolan för kemivetenskap (CHE), Kemiteknik, Tillämpad elektrokemi.ORCID-id: 0000-0002-0108-1872
KTH, Skolan för elektro- och systemteknik (EES), Elkraftteknik.ORCID-id: 0000-0002-9481-7366
KTH, Skolan för kemivetenskap (CHE), Kemiteknik, Tillämpad elektrokemi.ORCID-id: 0000-0002-9392-9059
KTH, Skolan för kemivetenskap (CHE), Kemiteknik, Tillämpad elektrokemi.ORCID-id: 0000-0001-9203-9313
Vise andre og tillknytning
2015 (engelsk)Inngår i: ECS Transactions, Electrochemical Society, 2015, Vol. 69, nr 18, s. 101-106Konferansepaper, Publicerat paper (Fagfellevurdert)
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Text
Abstract [en]

We have built an experimental setup which exposes twelve cells to a well-defined ripple current. It consists of a system for cycling high capacity cells in parallel with a triangular current waveform superimposed on top of the direct current. The frequency of the waveform is variable up to 50 Hz, and the sum of the DC and AC components can have a magnitude of -40 A to 40 A. Current is measured over a 500 μω shunt resistor. The voltage and current of each cell is read simultaneously at a sample rate up to 4 MS/s, allowing for precise impedance measurements even for high frequency harmonics. The cells are cycled at 40 °C. The experiment has been designed to eliminate indirect effects of the AC harmonics as far as possible. This system is being used to test whether or not AC harmonics affect Li-ion aging.

sted, utgiver, år, opplag, sider
Electrochemical Society, 2015. Vol. 69, nr 18, s. 101-106
Serie
ECS Transactions, ISSN 1938-5862
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-187428DOI: 10.1149/06918.0101ecstScopus ID: 2-s2.0-84959329828ISBN: 978-160768539-5 (tryckt)OAI: oai:DiVA.org:kth-187428DiVA, id: diva2:930252
Konferanse
Conference of Symposium on Joint General Session: Batteries and Energy Storage -and- Fuel Cells, Electrolytes, and Energy Conversion - 228th ECS Meeting ; Conference Date: 11 October 2015 Through 15 October 2015
Merknad

QC 20160523

Tilgjengelig fra: 2016-05-23 Laget: 2016-05-23 Sist oppdatert: 2016-05-23bibliografisk kontrollert

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Bessman, AlexanderSoares, Rúdi CavalerioBehm, MårtenLindbergh, GöranWallmark, OskarLeksell, Mats
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