Chemical engineers don’t like waste. We are always looking for ways to use and reuse items that would otherwise be discarded (see my blog ‘Ionic fluids pack a punch for biofuels‘).
At a first glance, some products only have one function. For example, the loose-fill packing peanuts that make shipping fragile items easier.
Packing peanuts normally end up in landfill sites where they remain intact for decades and as they’re difficult to breakdown, only around 10 per cent are recycled in the US.
So, researchers from Purdue University, US, did some clever thinking and found a way to convert packing peanuts into carbon electrodes that can outperform the conventional graphite electrodes found in lithium ion batteries.
It all started when Professor Vilas Pol, an associate professor of chemical engineering, and his postdoctoral researcher, Vinodkumar Etacheri, were unpacking boxes filled with instruments for Vilas’ new lab. After emptying the boxes, they had great new lab full of instruments and a surplus of packing peanuts.