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Stationary lead-acid batteries face the challenge of meeting the ever increasing energy demand of the electric vehicle. This challenge can be met by using more efficient electrodes, i.e. by incorporating advanced carbon nanostructured materials in the formulation of those electrodes.
It is in this context –within the SPECTRA Project- that the task in which the GAIKER-IK4 Technology Centre is participating has emerged, entitled “New, more efficient and economical, longer life lead-acid batteries for charging stations by using carbon nanomaterials”, whose goal is to improve the charge acceptance, performance and duration of current lead-acid batteries.
This line of research, which started in September 2015 and should be completed in March 2017, is led by the company EXIDE Technologies- responsible for making the improved lead-acid battery, and also includes the above-mentioned participation of GAIKER-IK4, the Autonomous University of Madrid (UAM) and the Antolín Group.
The aim during this phase of the project is to develop new lead paste formulations based on new carbonaceous particles with high specific surface areas and electrical conductivity. These new additives will be introduced into the manufacturing process of the positive and negative battery electrodes in order to improve their performance. To do this, on the one hand, the carbon nanoproducts, manufactured by the Antolín Group, will be evaluated and adapted, while on the other hand, the UAM will conduct electrochemical studies in order to find out whether the new nanoadditives can be used in the manufacture of lead-acid batteries.
GAIKER-IK4 has state-of-the-art equipment and extensive experience in the analysis of dispersion performance, hence its work within this research, apart from the task of characterizing the various carbon nanomaterials, is to prepare optimized dispersions using different additive types and concentrations.
The SPECTRA Project (Smart Personal CO2-Free Transport), which began in late 2015 and is due to last 48 months, aims to achieve an improvement in urban mobility by reducing traffic congestion and its environmental impact by constructing a model that incorporates a wide range of technologies. With a budget of €9.9M, this research is funded by the CDTI Cien 2015 call for proposals.