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Cover Picture: Reinforced Electrode Architecture for a Flexible Battery with Paperlike Characteristics (Energy Technol. 2-3/2013)
A Robust Battery—Bringing in Reinforcements: The cover picture shows a battery electrode that was reinforced by embedding the electrochemically active composite inside a fibrous-membrane support. The membrane absorbs the stresses generated during flexing and prevents mechanical degradation. The anode, separator, and cathode are stacked together to form a flexible battery, as described in the Full Paper by Daniel A. Steingart and colleagues at the City College of New York on page 177. Electrochemical and mechanical characterization shows that the batteries with reinforced electrodes maintain their capacity and performance even under the mechanical stresses generated during flexing. Robust, flexible batteries such as the one demonstrated in this work are critical to enable the large-scale deployment of mobile, flexible electronic devices.