Original title: Study Of Surface Changes Of Negative Electrode For Lead-Acid Batteries Using Operando Confocal Laser Microscopy
Authors: Hálová, Hana
Document type: Papers
Language: cze
Publisher: Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií
Abstract: Our contribution deals with the laser microscopy observation of the negative electrodefor lead-acid batteries during their life-span. We evaluate the surface changes during both deepcycling and PSoC (Partial State of Charge) cycling. The mode leads to a gradual degradation of thenegative electrode – mostly because of irreversible sulfation. The speed of the sulfation can be influencedby additives added already during the production process. The active mass was firstlyexamined by electron microscope and X-ray diffractometer. After that, the crystal growth duringcycling was observed using confocal microscope Olympus Lext OLS4100.
Keywords: confocallaser microscopy; cycle life; lead sulfate; Negative electrode; Premature Capacity Loss; PSoC
Host item entry: Proceedings I of the 27st Conference STUDENT EEICT 2021: General papers, ISBN 978-80-214-5942-7

Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/200707

Permalink: http://www.nusl.cz/ntk/nusl-447752


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