The escalating global concern surrounding lithium battery electrolyte (LBE) arises from the substantial accumulation of discarded, hazardous, and valuable materials. While there has been extensive documentation on electrolyte recovery, research on harnessing the potential of solvent carbonates remains relatively sparse. To tackle this issue, we pioneered the development of three innovative metal anion-cation coordination ionic liquid catalysts. These catalysts were meticulously crafted to facilitate the synthesis of polycarbonate from spent LBE carbonate. Our approach involved intricate reactions between organic cations and inorganic anions with various metal compounds, resulting in synergistic catalytic effects. Comprehensive characterization unequivocally verified the intended chemical structure and thermal stability. Through systematic optimization of reaction conditions, our efforts yielded exceptional outcomes. The standout performer among the 1,3-(p-toluic acid Zinc Salt)Im ZnCl achieved an impressive conversion rate and a robust yield. The catalyst demonstrated exceptional efficiency, selectivity, and degree of polymerization, offering auspicious avenues for future applications.

中文翻译：

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金属阴阳离子配位离子液体用于废锂电池电解液合成聚碳酸酯

由于废弃、危险和有价值材料的大量积累，全球对锂电池电解质 (LBE) 的关注不断升级。尽管有大量关于电解质回收的文献，但利用溶剂碳酸酯潜力的研究仍然相对较少。为了解决这个问题，我们率先开发了三种创新的金属阴阳离子配位离子液体催化剂。这些催化剂经过精心设计，可促进用废 LBE 碳酸酯合成聚碳酸酯。我们的方法涉及有机阳离子和无机阴离子与各种金属化合物之间的复杂反应，从而产生协同催化效应。综合表征明确验证了预期的化学结构和热稳定性。通过系统优化反应条件，我们的努力取得了非凡的成果。 1,3-（对甲基苯甲酸锌盐）Im ZnCl 中表现最为出色的产品实现了令人印象深刻的转化率和稳健的产率。该催化剂表现出卓越的效率、选择性和聚合度，为未来的应用提供了有利的途径。