【摘要】 本文以对苯二甲醛为单体，利用简单的安息香缩合及氧化脱氢反应制备了聚苯偶酰高分子材料（DB-YHH）。对于负极材料DB-YHH的聚合物锂电池性能，横流充放电（GCD）测试表明DB-YHH首圈比容量达到2200 m Ah g^-1，其在0.5 A g^-1的电流密度下测试，仍提供了760 m Ah g^-1的比容量，同时经过700次循环(1.0 A g^-1)后，DB-YHH的容量保留了250 m Ah g^-1。本工作不仅拓展了制备聚苯偶酰的合成方法，扩大了具有邻双羰基的共轭羰基化合物家族，而且为聚苯偶酰类聚合物在锂离子电池中的应用提供了有效策略。更多还原

【Abstract】 In this paper,a polybenzil polymer material （DB-YHH） was prepared by a simple benzoin condensation and oxidative dehydrogenation reaction using terephthalaldehyde as a monomer.For the performance of DB-YHH’s polymer lithium-ion battery,Galvanostatic Charge-Discharge （GCD） tests shows that the first cycle specific capacity of DB-YHH reaches 2200 mAh g^-1,and it still provides 760 mAh g^-1when tested at a current density of 0.5 A g^-1.While the capacity of DB-YHH retains 250 mAh g^-1after 700cycles (1.0 A g^-1).This work not only expands the synthetic methods for the preparation of Polybenzil and widens the family of conjugated carbonyl compounds with ortho-biscarbonyl groups,but also provides an effective strategy for the application of Polybenzil polymers in lithium-ion batteries.更多还原