Breakthrough Battery Technology Promises Week-Long Phone Charge
Researchers have developed a new lithium-sulfur battery with five times the energy density of current lithium-ion cells. The technology could extend smartphone battery life to a full week and increase electric vehicle range to over 1,000 miles per charge. The key innovation is a novel cathode material that prevents the degradation that has plagued previous lithium-sulfur designs. Commercial production could begin within three years.
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