Maastricht Economic and social Research and  training centre on Innovation and Technology

 
Master's Open Day at UNU-MERIT
UNU-MERIT will host a Master’s Open Day on Saturday 7 October 2017. Our top-ranked MSc in Public Policy and Human Development (MPP) emphasises the connection between public policy and decision-making processes, as well as the principles of good governance.

Students who successfully complete our Master’s programme receive a double degree issued by the United Nations University and Maastricht University. Several information sessions will be offered throughout the day and visitors will have the opportunity to talk with staff and students.
See: https://www.merit.unu.edu/events/event-abstract/?id=1660



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  • Lithium-ion batteries that don't explode a step closer
    Exploding lithium-ion batteries may soon be a thing of the past with the development of a safer, lighter version that matches the power level needed to run everyday devices.

    The main problem with existing lithium-ion batteries is the conducting liquid — through which ions are exchanged between positive and negative electrodes — is flammable. So, if the battery overheats or shorts out, there's a risk the liquid can ignite.

    Now a team of researchers from the University of Maryland and the US Army Research Laboratory have found a way around this, by developing a battery that contains a water-based salt solution instead of a flammable liquid. They're not the first to try this approach, but until now, these water-solution-based lithium-ion batteries have only had limited power.

    They say their new lithium-ion battery that has succeeded in generating four volts — the amount generated by existing lithium-ion batteries used in everyday household products — but without the safety risks. They achieved this by using an extremely salty water-based solution, and developing a special coating that protects the battery's electrodes from direct interaction with the water-based solution.

    The special coating on the surface of the electrode also repels water molecules and is self-healing, which means even if the battery is damaged, a violent reaction between the electrodes and the solution is much less likely.

    ABC News / Joule    September 07, 2017