Anion chemistry of sulfonates plays a crucial role in dictating the electrochemical performance of composite solid polymer electrolytes (CSPEs), hence affecting the cyclability of lithium-ion batteries (LIBs). The CSPEs received great attention for LIBs, however, simultaneously achieving high ionic conductivity and long cycle life in realistic batteries is still a great challenge. Herein, we report new sulfonate anion with hydrophilic aromatic structure and ether alkyl spacer of hydroxyl wing namely lithium hydroxyphenyl propanesulfonate (LHPS), and a series of CSPEs obtained by coupling of the synthesized anions via tetraethyl orthosilicate to be used in LIBs. The CSPEs comprising LHPS achieve higher ionic conductivity and excellent cyclability with impressive stability due to their decent compatibility of hydroxyl wing, and aliphatic ether spacer with the polymeric matrix. The intramolecular and intermolecular interactions of LHPS with other precursors within anion-polymer matrices via hydrogen bonding reduce anionic species migration, thus augmenting Li⁺ ion conduction and impeding lithium dendritic growth during the electrochemical performance. This opens a new avenue for designing conductive and long cycle life CSPEs for LIBs in the future.

磺酸盐的阴离子化学在决定复合固体聚合物电解质（CSPEs）的电化学性能方面起着至关重要的作用，从而影响锂离子电池（LIBs）的可循环性。CSPEs在LIBs中受到了极大的关注，然而，在现实电池中同时实现高离子电导率和长循环寿命仍然是一个巨大的挑战。在此，我们报道了具有亲水芳族结构和羟基翼醚烷基间隔基的新型磺酸根阴离子，即羟基苯基丙磺酸锂（LHPS），以及通过原硅酸四乙酯偶联合成的阴离子获得的一系列 CSPE，用于 LIB。包含 LHPS 的 CSPE 具有更高的离子电导率和出色的可循环性以及令人印象深刻的稳定性，因为它们具有良好的羟基翼相容性，和具有聚合物基质的脂肪族醚间隔物。LHPS 通过氢键与阴离子聚合物基质中其他前体的分子内和分子间相互作用减少了阴离子物质的迁移，从而增加了 Li⁺电化学性能期间的离子传导和阻碍锂枝晶生长。这为未来为 LIB 设计导电和长循环寿命 CSPE 开辟了一条新途径。