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首页> 外文期刊>Advanced functional materials >Tailored Organic Cathode Material with Multi-Active Site and Compatible Groups for Stable Quasi-Solid-State Lithium-Organic Batteries
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Tailored Organic Cathode Material with Multi-Active Site and Compatible Groups for Stable Quasi-Solid-State Lithium-Organic Batteries

机译：Tailored Organic Cathode Material with Multi-Active Site and Compatible Groups for Stable Quasi-Solid-State Lithium-Organic Batteries

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Quasi-solid-state lithium-organic batteries have attracted widespread attentionin view of their high safety, good mechanical strength, compromiseionic conductivity, and environmental friendliness. However, most organicelectrode materials suffer from the undesirable interfacial compatibility,thus causing poor cycling stability. Herein, a quinone-fused aza-phenazine(THQAP) is reported with multi-active site and compatible groups as thecathode material for constructing poly(vinylidene fluoride hexafluoro propylene)(PVDF-HFP)-based quasi-solid-state lithium-organic batteries. Benefittingfrom the high compatibility between cathode material (THQAP) andgel polymer electrolytes (PVDF-HFP), the dissolution and shuttle reactionof THQAP with hydroxyl groups are suppressed compared with its counterparts(QAP) without hydroxyl groups. As a result, THQAP in quasi-solid-statelithium-organic batteries not only delivers excellent reversible capacity of240 mAh g~(?1) at 50 mA g~(?1), but also exhibits stable cyclability with capacityretention of 78% (160 mAh g~(?1)) after 200 cycles at 200 mA g~(?1). This studyoffers a promising strategy to develop quasi-solid-state lithium-organic batterieswith higher capacity and cycling stability.

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