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Scientists Develop Safer, More Durable Li-Ion Battery for Extreme Conditions

Remember those reports of exploding hoverboards a few years ago? The culprit behind those spontaneous electrical combustions were low-quality Li-ion batteries, which contain highly flammable, toxic, and moisture-sensitive electrolytes. A team of scientists at the Johns Hopkins Applied Physics Laboratory has partnered with researchers from the University of Maryland and the Army Research Laboratory to

Novel Circuit Design Boosts Wearable Thermoelectric Generators

Using flexible conducting polymers and novel circuitry patterns printed on paper, researchers have demonstrated proof-of-concept wearable thermoelectric generators that can harvest energy from body heat to power simple biosensors for measuring heart rate, respiration or other factors. Because of their symmetrical fractal wiring patterns, the devices can be cut to the size needed to provide