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An Ultrafast Rechargeable Hybrid Sodium‐Based Dual‐Ion Capacitor Based on Hard Carbon Cathodes
Advanced Energy Materials ( IF 27.8 ) Pub Date : 2018-03-15 , DOI: 10.1002/aenm.201800140
Suhua Chen 1 , Jue Wang 1 , Ling Fan 1 , Ruifang Ma 1 , Erjing Zhang 1 , Qian Liu 1 , Bingan Lu 1
Affiliation  

Hybrid sodium‐based dual‐ion capacitors (NDICs), which integrate the advantages of supercapacitors and sodium‐ion batteries, have attracted tremendous attention recently. In this work, hybrid sodium‐based dual‐ion capacitors are successfully developed with nitrogen‐doped microporous hard carbon as the cathode and soft carbon as the anode. N‐doping is beneficial to the functional groups, porous structure, and electric conductivity of hard carbon. Hybrid NDICs possess a wide voltage range (0.01–4.7 V), high‐energy density of 245.7 W h kg−1 at a power density of 1626 W kg−1, long cycle life (1000 cycles), and outstanding rate performance.

中文翻译:

基于硬碳阴极的超快速可充电混合钠基双离子电容器

集成了超级电容器和钠离子电池优势的混合钠基双离子电容器(NDIC)最近引起了极大的关注。在这项工作中,以氮掺杂的微孔硬碳为阴极,软碳为阳极,成功开发了基于钠的混合双离子电容器。N掺杂有利于硬碳的官能团,多孔结构和导电性。混合NDIC具有宽电压范围(0.01–4.7 V),245.7 W h kg -1的高能量密度,1626 W kg -1的功率密度,长循环寿命(1000次循环)和出色的倍率性能。
更新日期:2018-03-15
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