Nano-Micro Letters ( IF 26.6 ) Pub Date : 2023-01-13 , DOI: 10.1007/s40820-022-01009-x Tianjiang Sun 1 , Weijia Zhang 1 , Qingshun Nian 2 , Zhanliang Tao 1
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The conjugated thioether (–S–) bonds as connected units not only improve the conductivity of compounds but also inhibit their dissolution by both extended π-conjugated plane and constructed flexible molecular skeleton.
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The Zn//4S6Q battery based on 3.5 M Zn(ClO4)2 electrolyte shows excellent rate capacity (208.6 mAh g−1 at 30 A g−1), superlong cycling life (> 20,000 cycles with no capacity fading), and impressive low-temperature performance (201.7 mAh g−1 at − 60 °C).
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The H+-storage mechanism of 4S6Q compound is demonstrated by comprehensive characterizations.
中文翻译:
高性能水系锌有机电池的分子工程设计
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共轭硫醚(-S-)键作为连接单元,不仅提高了化合物的电导率,而且通过延伸的π共轭平面和构建的柔性分子骨架抑制了化合物的溶解。
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基于3.5 M Zn(ClO 4 ) 2电解质的Zn//4S6Q电池表现出优异的倍率容量(30 A g -1 时为208.6 mAh g -1)、超长的循环寿命(> 20,000次循环且无容量衰减)和令人印象深刻的性能。低温性能(201.7 mAh g −1 at − 60 °C)。
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通过综合表征证明了4S6Q化合物的H +存储机制。