4. Dry polymer electrolytes based on block copolymers

Solid electrolyte block copolymers comprise an A block, which ensures ion conduction, and a B block, which provides the material's mechanical strength thanks to its high T _g value. The choice of the conductive block is essentially based on POE, which forms either the main linear backbone or the pendant grafts of block A. The main architectures of POE-based block copolymers, shown in figure 1 , correspond to either AB diblocks or BAB triblocks.

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