Heraeus Porocarb® is a functional carbon additive platform for aqueous and non-aqueous electrochemical energy storage and conversion systems, such as lead–acid batteries, fuel cells, and lithium–sulfur or lithium-ion batteries. Porocarb carbons exhibit a unique and tunable porosity profile that ranges from small mesopores below 10 nm to macropores with cross-sections of several hundreds of nanometres, with all levels of porosity being hierarchically interconnected and fully accessible. This structure acts as transport and storage network for liquid electrolyte and enhances electrochemical kinetics of ion transport in various types of cell. At the same time, the mesopores offer plenty of nucleation sites for discharge products (PbSO4, LiSx) and consequently crystallite size remains small during the reaction. Furthermore, Porocarb offers excellent corrosion resistance and high electronic conductivity. The presentation demonstrates the benefits of Porocarb for lead–acid and other related electrochemical storage systems. Lead adsorption and its relation to porosity profiles and surface chemistries of different types of Porocarb are discussed. . Finally, the general trends and guidelines whereby Porocarb can lead to enhanced performance of electrochemical energy storage and conversion devices are discussed.

Dominik Samuelis
Heraeus New Businesses - Battery
Head of Innovation

Biography: Dr. Dominik Samuelis is Head of Innovation for Heraeus New Businesses ― Battery and is in charge of R&D for the Heraeus Porocarb(R) platform. He hols a Masters degree in Engineering from Darmstadt University and a PhD from RWTH Aachen University. He has authored more than 20 technical publications, 3 book chapters and 3 patent applications.

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