J. mater. chem. A J. mater. chem. A New nanostructured, ion-conductive, bent-core liquid crystals containing lithium and sodium salts as soft electrolyte candidates Auria-Soro Carlota Universidad de Zaragoza Cruz-Navarro Nuria Folcia César L. Sobrados Isabel Haddad Amin Sharifi Martínez-Felipe Alfonso Ros M. Blanca 2026 research-article