Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Cream roll-inspired advanced MnS/C composite for sodium-ion batteries: encapsulating MnS cream into hollow N,S-co-doped carbon rolls
Nanoscale ( IF 6.7 ) Pub Date : 2020/03/12 , DOI: 10.1039/d0nr00626b Gaojie Li 1, 2, 3 , Kongyao Chen 1, 2, 3 , Yanjie Wang 1, 2, 3 , Zhuo Wang 1, 2, 3 , Xueli Chen 1, 2, 3 , Siwen Cui 1, 2, 3 , Zijie Wu 1, 2, 3, 4, 5 , Constantinos Soutis 4, 5, 6, 7 , Weihua Chen 3, 8, 9 , Liwei Mi 1, 2, 3
Nanoscale ( IF 6.7 ) Pub Date : 2020/03/12 , DOI: 10.1039/d0nr00626b Gaojie Li 1, 2, 3 , Kongyao Chen 1, 2, 3 , Yanjie Wang 1, 2, 3 , Zhuo Wang 1, 2, 3 , Xueli Chen 1, 2, 3 , Siwen Cui 1, 2, 3 , Zijie Wu 1, 2, 3, 4, 5 , Constantinos Soutis 4, 5, 6, 7 , Weihua Chen 3, 8, 9 , Liwei Mi 1, 2, 3
Affiliation
With advantages of high theoretical capacity and low cost, manganese sulfide (MnS) has become a potential electrode material for sodium-ion batteries (SIBs). However, complicated preparations and limited cycle life still hinder its application. Inspired by cream rolls in our daily life, a MnS/N,S-co-doped carbon tube (MnS/NSCT) composite with a 3D cross-linked tubular structure is prepared via an ultra-simple and low-cost method in this work. As the anode for SIBs, the cream roll-like MnS/NSCT composite has delivered the best electrochemical performance to date (the highest capacity of 550.6 mA h g−1 at 100 mA g−1, the highest capacity of 447.0 mA h g−1 after 1400 cycles at 1000 mA g−1, and the best rate performance of 319.8 mA h g−1 at 10 000 mA g−1). Besides, according to several in situ and ex situ techniques, the sodium storage mechanism of MnS/NSCTs is mainly from a conversion reaction, and the superior electrochemical performance of MnS/NSCTs is mainly attributed to the unique cream roll-like structure. More importantly, this simple method may be feasible for other anode materials, which will greatly promote the development of SIBs.
中文翻译:
乳脂膏启发的用于钠离子电池的高级MnS / C复合材料:将MnS乳脂封装到空心的N,S共掺杂碳辊中
凭借高理论容量和低成本的优势,硫化锰(MnS)已成为钠离子电池(SIB)的潜在电极材料。但是,复杂的制备和有限的循环寿命仍然阻碍了其应用。在我们的生活中受到奶油卷的启发,通过超简单且低成本的方法制备了具有3D交联管状结构的MnS / N,S共掺杂碳管(MnS / NSCT)复合材料。。作为阳极为的SIB,乳膏辊状的MnS / NSCT复合已交付的最佳电化学性能迄今(550.6毫安汞柱的最高容量-1以100mA克-1,447.0毫安汞柱的最高容量-1后1000 mA g -1时1400次和319.8毫安汞柱的最佳速率性能-1在10000毫安克-1)。此外,根据数个在原位和易地技术,MnS的存储钠机构/ NSCTs主要是从转化反应,和MnS的优良的电化学性能/ NSCTs主要归因于独特的奶油卷状结构。更重要的是,这种简单的方法对于其他阳极材料可能是可行的,这将大大促进SIB的发展。
更新日期:2020-04-17
中文翻译:
乳脂膏启发的用于钠离子电池的高级MnS / C复合材料:将MnS乳脂封装到空心的N,S共掺杂碳辊中
凭借高理论容量和低成本的优势,硫化锰(MnS)已成为钠离子电池(SIB)的潜在电极材料。但是,复杂的制备和有限的循环寿命仍然阻碍了其应用。在我们的生活中受到奶油卷的启发,通过超简单且低成本的方法制备了具有3D交联管状结构的MnS / N,S共掺杂碳管(MnS / NSCT)复合材料。。作为阳极为的SIB,乳膏辊状的MnS / NSCT复合已交付的最佳电化学性能迄今(550.6毫安汞柱的最高容量-1以100mA克-1,447.0毫安汞柱的最高容量-1后1000 mA g -1时1400次和319.8毫安汞柱的最佳速率性能-1在10000毫安克-1)。此外,根据数个在原位和易地技术,MnS的存储钠机构/ NSCTs主要是从转化反应,和MnS的优良的电化学性能/ NSCTs主要归因于独特的奶油卷状结构。更重要的是,这种简单的方法对于其他阳极材料可能是可行的,这将大大促进SIB的发展。