Modern technology depends on electricity as a source of energy, and portable electronics like cell phones, laptop computers and portable music devices are popular in modern society. Their batteries are essentially packages of electrical energy that can go wherever the device goes, but some of them are big and hazardous with many safety precautions. Erin’s research may lead to the production of smaller and more efficient batteries, possibly making popular electronic devices safer, more portable, and capable of operating longer without charging the batteries.