文章主要内容:A series of tablet-bottlebrush block copolymer electrolytes (BCPEs) were fabricated. The microphase-separated lamellar nanostructure of the BCPEs were oriented via solvent vapor annealing, and well-aligned nanostructures were obtained. The nanostructures are stable at high temperatures above 200 oC. The ionic conductivity (σ) of the BCPE at 200 oC reaches 2.19 mS cm-1. The σ value of well-aligned BCPE is much higher than that of randomly aligned BCPE.