To Boost Lithium-Ion Battery Capacity, Add Silicon

To Boost Lithium-Ion Battery Capacity, Add Silicon
AP Photo/Ted S. Warren

There was a time when budding inventors were advised to build a better mousetrap. Nowadays, they'd do rather well to build a better lithium-ion battery. These are what power our phones, laptops, portable power tools, an increasing number of cars, even homes. Some places are turning to giant lithium-ion batteries to store energy from solar panels so that it can be used after dark.

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