A carboxylate-linked atomically precise one-dimensional Cu I20 nanocluster-based framework for all-solid-state flexible supercapacitors†

We report the first carboxylate-linked one-dimensional Cu^I-based nanocluster framework (NCF), [Cu₂₀(^tBuCC)₁₈(tfbdc)], assembled from an anisotropic Cu^I₂₀ nanocluster conjugated with a tfbdc²⁻ linker via direct one-pot synthesis. The Cu^I-based NCF is woven into an all-solid-state flexible supercapacitor and exhibits favorable capacity with a maximum energy density of 105.4 W h kg⁻¹ at a power density of 800 W kg⁻¹.