Wireless, battery-free electronic 'stickers' gauge forces between touching objects

UC chemists develop a battery without water that can generate nearly 4 volts of power. The design does so without a membrane-separator, which are among the priciest parts of these kinds of batteries. “We developed a new type of energy storage material that improves performance at a lower cost.”

Battery-free robots use origami to change shape in mid-air

Scientists Develop a Truly Solid Battery Electrolyte With High-Performance