How Corrosion from An Electrolyte Ages Lithium-Metal Batteries (IMAGE)

DOE/SLAC National Accelerator Laboratory

How Corrosion from An Electrolyte Ages Lithium-Metal Batteries

Caption

Next-gen lithium metal batteries undergo rapid calendar aging, which drains the battery even when it's not being used and saps its capacity for storing energy. It happens when the battery electrolyte corrodes lithium metal anode particles (top left) or lithium metal filaments that form on the anode during charging (top right). The corrosion creates irregular clumps of a layer called SEI (bottom left and right). A study at SLAC National Accelerator Laboratory and Stanford University found that some electrolytes cause more of this damaging corrosion pattern than others.

Credit

Hongxia Wang/Stanford University

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