Pascual Garcia Perez

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Bio

Master degree in Chemistry (UV – Spain), PhD on Ceramic Materials (ENSCI – France) and MBA (UEMC-Spain), from 2007 I have worked in different research and development positions  in several divisions of Imerys group. Since 2016 I have been based in Switzerland in the Imerys G&C technology center leading the application group for alkaline and advanced lead acid batteries.


New Carbon Additives for Advanced Lead Batteries
Pascual Garcia Perez, Research & Development Manager, Imerys Graphite & Carbon, Switzerland

Imerys Graphite and Carbon is a worldwide leader in supplying highly specialized and environmentally friendly carbons for several high technology industries. We are committed to offer a diversified range of carbon additives able to fulfil all requirements for advanced lead batteries. The TIMREX® CyPbrid product family was especially designed for advanced lead batteries. These products combine high surface area, typical of carbon blacks, with high intrinsic conductivity and high apparent density, typical of graphite. Carbon materials added to the negative plate formulation improves the charge acceptance at partial state of charge as well as the cycling performance of lead-acid batteries. Experimental studies trying to understand which specific properties of the carbons are at the origin of those improvements have been done in the past but the recent focus is on developing and selecting suitable products for new automotive and stationary applications. Imerys development activities for carbon blacks and synthetic graphite aim to fulfil these requirements for advanced lead battery applications. The role of carbon materials on the negative electrode and how the surface groups can affect both the charge acceptance and hydrogen evolution will be discussed. Our latest findings and conclusions regarding carbon surface effect and the impact on performance in application testing will be presented.