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High-Performance Aqueous Sodium-Ion Batteries with Hydrogel Electrolyte and Alloxazine/CMK-3 Anode
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-04-25 00:00:00 , DOI: 10.1021/acssuschemeng.8b00663 Liqiao Zhong 1 , Yong Lu 1 , Haixia Li 1 , Zhanliang Tao 1 , Jun Chen 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-04-25 00:00:00 , DOI: 10.1021/acssuschemeng.8b00663 Liqiao Zhong 1 , Yong Lu 1 , Haixia Li 1 , Zhanliang Tao 1 , Jun Chen 1
Affiliation
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Aqueous rechargeable sodium-ion batteries (ARSIBs) are promising candidates for large-scale energy storage applications due to their high safety, low cost, and environmental friendliness. However, appropriate anode materials with high capacity for ARSIBs are limited, and their cycling stability is generally unsatisfactory. Here we report high-performance ARSIBs with polyacrylamide hydrogel as electrolyte and alloxazine (ALO) encapsulated in CMK-3 as anode. The hydrogel with solid content of 60% could effectively mitigate the dissolution issue of sodiated ALO because its cross-linked structure is helpful to reserve H2O. The ALO/CMK-3 anode based on a two-electron transfer reaction could deliver a high capacity of 160 mA h g–1. The introduction of CMK-3 could improve the electrical conductivity of ALO and further reduce the dissolution of sodiated ALO because of its high conductivity and nanochannel structure. The full ARSIBs exhibit an energy density of 50 W h kg–1 (based on the total mass of active electrode materials) with good capacity retention of 90% after 100 cycles at 2 C and high rate capability of 146 mA h g–1 at 10 C (1 C = 250 mA g–1). This work paves the way to construct high-performance ARSIBs with high-capacity organic anode and hydrogel electrolyte.
中文翻译：
具有水凝胶电解质和Alloxazine / CMK-3阳极的高性能钠离子电池水溶液
水性可充电钠离子电池（ARSIB）具有高安全性，低成本和环境友好性，因此有望用于大规模储能应用。然而，适合用于ARSIBs的具有高容量的阳极材料是有限的，并且它们的循环稳定性通常不能令人满意。在这里，我们报告了高性能ARSIBs，其中聚丙烯酰胺水凝胶作为电解质，而四氧嘧啶（ALO）封装在CMK-3中作为阳极。具有60％的固体含量的水凝胶可以有效地减轻sodiated ALO的溶解问题，因为它的交联结构是有帮助的预留ħ 2 O.的ALO基于双电子转移反应可以提供高/ CMK-3阳极160 mA hg –1的容量。CMK-3的引入具有较高的电导率和纳米通道结构，可以提高ALO的电导率，并进一步降低固体ALO的溶解度。充分表现出ARSIBs 50 W时kg的能量密度-1（基于活性电极材料的总质量），在2 C 100个循环和146毫安汞的高倍率性能后的90％的良好的容量保持-1在10 C（1 C = 250 mA g –1）。这项工作为构建具有高容量有机阳极和水凝胶电解质的高性能ARSIB铺平了道路。
更新日期：2018-04-25
中文翻译：
具有水凝胶电解质和Alloxazine / CMK-3阳极的高性能钠离子电池水溶液
水性可充电钠离子电池（ARSIB）具有高安全性，低成本和环境友好性，因此有望用于大规模储能应用。然而，适合用于ARSIBs的具有高容量的阳极材料是有限的，并且它们的循环稳定性通常不能令人满意。在这里，我们报告了高性能ARSIBs，其中聚丙烯酰胺水凝胶作为电解质，而四氧嘧啶（ALO）封装在CMK-3中作为阳极。具有60％的固体含量的水凝胶可以有效地减轻sodiated ALO的溶解问题，因为它的交联结构是有帮助的预留ħ 2 O.的ALO基于双电子转移反应可以提供高/ CMK-3阳极160 mA hg –1的容量。CMK-3的引入具有较高的电导率和纳米通道结构，可以提高ALO的电导率，并进一步降低固体ALO的溶解度。充分表现出ARSIBs 50 W时kg的能量密度-1（基于活性电极材料的总质量），在2 C 100个循环和146毫安汞的高倍率性能后的90％的良好的容量保持-1在10 C（1 C = 250 mA g –1）。这项工作为构建具有高容量有机阳极和水凝胶电解质的高性能ARSIB铺平了道路。
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