Background: Magnetic ﬁeld eﬀects in electrochemical systems arise through transport and kinetic eﬀects of paramagnetic reactants products or intermediates. Often these eﬀects are studied in uniform magnetic ﬁelds or magnetic ﬁeld gradients provided by large external permanent magnets. However researchers at the UI have shown that magnetic composite modiﬁed electrodes where the magnetic ﬁeld is supplied by ferromagnetic microparticles without an external ﬁeld can provide substantial improvements to a large variety of electrochemical systems which are summarized below. Technology Description: This technology is a magnetically modified MnO2 cathode for use in primary (non-rechargeable) alkaline batteries. The cathode material is a proprietary mixture of electrolytic manganese dioxide (EMD) graphite a polymer binder and magnetic SmCo5 microparticles. Proof of concept models have shown when magnetic microparticles are incorporated into the cathode matrix the batteries perform with improved energy increased power and increased discharge capacities for a given voltage compared to non-magnetic batteries. Applications: Non-rechargeable alkaline batteries Patent Status: US 20120088148 A1
Improved energy increased power and increased discharge capacities for a given voltage compared to non-magnetic batteries.