Carbon blacks for lead-acid batteries in micro-hybrid applications

Studied by transmission electron microscopy and Raman spectroscopy

authored by: Ellen Ebner, Daniel Burow, Jana Panke, Alexander Börger, Armin Feldhoff, Paolina Atanassova, Jesus Valenciano, Michael Wark, Eckart Rühl
Abstract: Micro-hybrid vehicles with stopestart function and regenerative braking lead to higher requirements on flooded lead-acid batteries. A promising approach to improve the cycleability of flooded lead-acid batteries is the use of carbon additives in the negative active mass. In this study different carbons (carbon blacks and a lamp black) were studied by transmission electron microscopy and Raman spectroscopy. Furthermore, batteries containing carbon blacks and lamp black in the negative active material were cycled with 17.5% depth of discharge. Morphology, surface functionalisation, and the degree of order were correlated with the cycle life. In cycling tests, batteries with highly ordered carbon blacks increase the lifetime of the corresponding battery by up to a factor of two.
Organisation(s): Institute of Physical Chemistry and Electrochemistry
External Organisation(s): Volkswagen AG
Freie Universität Berlin (FU Berlin)
Cabot Corporation
Exide Technologies, Spain
Ruhr-Universität Bochum
Type: Article
Journal: Journal of Power Sources
Volume: 222
Pages: 554-560
No. of pages: 7
ISSN: 0378-7753
Publication date: 15.01.2013
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology, Physical and Theoretical Chemistry, Electrical and Electronic Engineering
Sustainable Development Goals: SDG 7 - Affordable and Clean Energy
Electronic version(s): https://doi.org/10.1016/j.jpowsour.2012.08.089 (Access: Closed)