Ultra-long cycle life organic-sodium batteries enabled by thiophene-based porphyrin in-situ electropolymerization
Ultra-long cycle life organic-sodium batteries enabled by thiophene-based porphyrin in-situ electropolymerization
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噻吩基卟啉原位电聚合实现超长循环寿命有机钠电池
DOI:
10.1016/j.cej.2022.139951
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发表时间:
2022-10
影响因子:
15.1
通讯作者:
Ping Gao
中科院分区:
文献类型:
--
作者:
Youlian Zeng;Jiarong Zhou;Jiahao Zhang;Fangfang He;Yachao Su;Pu Wang;Songting Tan;Ping Gao
Organic-sodium batteries have attracted extensive attention due to the abundance of sodium resource and the molecular tunability of organic materials. However, the dissolution of organic materials in electrolytes and low electronic conductivity limit its development. Here, a porphyrin complex of [5,15-di(thiophen-2-yl) porphinato] M(II) (MTP, M = Cu, Ni) is proposed as highly stable cathode material for organic-sodium batteries. Benefiting from the multiple electron transfer of metal porphyrin complex and in-situ polymerization of thiophene groups of porphyrin complex in initial cycles, the CuTP cathode delivers a reversible capacity of 203 mAh/g at 100 mA g−1and long-term cycling stability up to 11,000 cycles at a high current density of 5 A/g owing to the enhanced conjugated structure induced by in situ polymerization process. A specific energy density of 508 Wh kg−1and a power density of 18 KW kg−1are achieved for metal porphyrin-based cathode. The charge storage sites and in-situ polymerization mechanism of MTP cathode are systematically evaluated by both experimental and simulated studies. This study would provide a new strategy to address the dissolution issue of organic cathode and improve cycling stability of the organic-sodium batteries.
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DOI:
10.1002/anie.202000566
发表时间:
2020
期刊:
Angewandte Chemie International Edition
影响因子:
--
作者:
Chen Zhao;Zifeng Chen;Wei Wang;Peixun Xiong;Benfang Li;Mengjie Li;Jixing Yang;Yunhua Xu
通讯作者:
Yunhua Xu
影响因子:
20.4
作者:
Xing Wu;Xin Feng;Jingjun Yuan;Xiukang Yang;Hongbo Shu;Chengkai Yang;Zheyuan liu;Jinfeng Peng;Enhui Liu;Songting Tan;Ping Gao
通讯作者:
Ping Gao
影响因子:
27.8
作者:
Han, Xue;Li, Shijie;Jiao, Shuqiang
通讯作者:
Jiao, Shuqiang
影响因子:
32.5
作者:
Lei, Kaixiang;Li, Fujun;Chen, Jun
通讯作者:
Chen, Jun
影响因子:
16.6
作者:
Ma, Ting;Pan, Zeng;Chen, Jun
通讯作者:
Chen, Jun