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首页> 外文期刊>Advanced Functional Materials >Poly(2,5-Dihydroxy-1,4-Benzoquinonyl Sulfide) As an Efficient Cathode for High-Performance Aqueous Zinc-Organic Batteries
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Poly(2,5-Dihydroxy-1,4-Benzoquinonyl Sulfide) As an Efficient Cathode for High-Performance Aqueous Zinc-Organic Batteries

机译：聚（2,5-二羟基-1,4-苯醌氨基壬烷）作为高效水性锌 - 有机电池的高效阴极

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摘要

Aqueous rechargeable zinc-ion batteries (ZIBs) have attracted considerable attention as a promising candidate for low-cost and high-safety electrochemical energy storage. However, the advancement of ZIBs is strongly hindered by the sluggish ionic diffusion and structural instability of inorganic metal oxide cathode materials during the Zn2+ insertion/extraction. To address these issues, a new organic host material, poly(2,5-dihydroxy-1,4-benzoquinonyl sulfide) (PDBS), has been designed and applied for zinc ion storage due to its elastic structural factors (tunable space and soft lattice). The aqueous Zn-organic batteries based on the PDBS cathode show outstanding cycling stability and rate capability. The coordination moieties (O and S) display the strong electron donor character during the discharging process and can act as the coordination arms to host Zn2+. Also, under the electrochemical environment, the malleable polymer structure of PDBS permits the rotation and bending of polymer chains to facilitate the insertion/extraction of Zn2+, manifesting the superiority and uniqueness of organic electrode materials in the polyvalent cation storage. Finally, quasi-solid-state batteries based on aqueous gel electrolyte demonstrate highly stable capacity under different bending conditions.
机译：作为低成本和高安全性电化学能量存储的有希望的候选者，可充电锌离子电池（ZIB）吸引了相当大的关注。然而，通过在Zn2 +插入/萃取期间的无机金属氧化物阴极材料的缓慢离子扩散和结构不稳定性强烈地阻碍了ZIB的进步。为了解决这些问题，已经设计了一种新的有机宿主材料，聚（2,5-二羟基-1,4-苯醌）（PDBS），其由于其弹性结构因素而设计并施加锌离子储存（可调空间和柔软格子）。基于PDBS阴极的Zn-有机电池显示出突出的循环稳定性和速率能力。协调部分（O和S）在放电过程中显示强电子供体特性，并且可以作为宿主Zn2 +的配位臂。而且，在电化学环境下，PDB的可延展性聚合物结构允许聚合物链的旋转和弯曲，以便于插入/提取Zn2 +，表现出多价阳离子储存中有机电极材料的优势和唯一性。最后，基于水性凝胶电解质的准固态电池在不同的弯曲条件下表现出高度稳定的容量。

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