アニオンレセプター分子「シアノスター」の化学とリチウムイオン電池への応用展開

抄録

Cyanostar was developed as a pseudo-C_5h-symmetric macrocyclic anion receptor which possesses an electropositive central cavity surrounded by five weak hydrogen-bonding donors. Cyanostar strongly binds large non-coordinating anions, such as BF₄^-, ClO₄^-, and PF₆^-, as 2 : 1 sandwich complexes. Addition of cyanostar to LiPF₆ solution, a representative electrolyte in lithium ion battery, facilitated salt dissociation to generate free Li⁺ and enhanced conductivity and Li⁺ transference number. This finding opens new opportunity for the development of novel battery electrolytes.