Window into battery life for next-gen lithium cells

Dendrites, whiskers of lithium that grow inside batteries and can cause fires like those in the Samsung Galaxy Note 7, are the bane of next-generation lithium batteries. While they usually spread under cover of darkness in a closed cell, a team of researchers has spied on them by cutting a window in a battery and filming the dendrites as they grew. Their work could help researchers safely take lithium batteries to the next level.

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