Stanford develops safer lithium-sulfur batteries with four times the charge of lithium-ion cells
In this article: battery, battery life, BatteryLife, lithium, lithium sulfide, lithium sulfur, lithium sulfur battery, lithium-sulfer, lithium-sulfide, LithiumSulfide, LithiumSulfur, LithiumSulfurBattery, nanotechnology, rechargeable, rechargeable battery, RechargeableBattery, silicon nanowire, silicon nanowires, SiliconNanowire, SiliconNanowires, stanford, Stanford University, StanfordUniversity
battery life is high atop our list of gadget prayers, and the brainiacs at Stanford are one step closer to making our dreams come true with a new lithium-sulfur technology. Half of this trick lies in the silicon nanowire anode that the same team developed back in 2007, whereas the new cathode consists of a similarly commodious lithium sulfide nanostructure. Compared to present lithium-ion batteries, Stanford's design is "significantly safer" and currently achieves 80 percent more capacity, but it's nowhere near commercial launch with just 40 to 50 charge cycles (Li-ion does "300 to 500") due to the compound's rapid degradation. That said, we're promised a theoretical quadruple boost in capacity as the technology matures, so until then we'll keep that hamster running in our backpack.
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