Amorphous Dual‐Layer Coating: Enabling High
Herein, a novel strategy to achieve high Li + ion conductivity of LLZTO without sintering is demonstrated. This is realized by ball milling LLZTO together with LiBH 4, which results in a LLZTO composite with unique amorphous dual coating: LiBO 2 as the inner layer and LiBH 4 as the outer layer. After cold pressing the LLZTO composite powders under 300 MPa to form electrolyte pellets, a high Li