Understanding Substrate Mechanics and Chemo‐Mechanical Behavior of Columnar Silicon Films to Enable Deformation Free Anodes for High‐Energy Li‐Ion Batteries
Abstract:Columnar silicon (col‐Si) is a great candidate as anode material to achieve volumetric energy density, outperforming state‐of‐the‐art lithium‐ion batteries. The utilization of col‐Si in industrial scale is mainly restricted by poor cyclic life originating from immense volumetric expansion of Si, resulting in mechanical failure of the electrode. Understanding the mechanic and breathing behavior of col‐Si films coupled with copper current collectors (Cu‐CC) is therefore crucial to mitigate the above‐mentioned is… Show more
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