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Na2V6O16·3H2O Barnesite Nanorod: An Open Door to Display a Stable and High Energy for Aqueous Rechargeable Zn-Ion Batteries as Cathodes
Nano Letters ( IF 9.6 ) Pub Date : 2018-03-23 00:00:00 , DOI: 10.1021/acs.nanolett.7b05403 Vaiyapuri Soundharrajan 1 , Balaji Sambandam 1 , Sungjin Kim 1 , Muhammad H. Alfaruqi 1, 2 , Dimas Yunianto Putro 1 , Jeonggeun Jo 1 , Seokhun Kim 1 , Vinod Mathew 1 , Yang-Kook Sun 3 , Jaekook Kim 1
Nano Letters ( IF 9.6 ) Pub Date : 2018-03-23 00:00:00 , DOI: 10.1021/acs.nanolett.7b05403 Vaiyapuri Soundharrajan 1 , Balaji Sambandam 1 , Sungjin Kim 1 , Muhammad H. Alfaruqi 1, 2 , Dimas Yunianto Putro 1 , Jeonggeun Jo 1 , Seokhun Kim 1 , Vinod Mathew 1 , Yang-Kook Sun 3 , Jaekook Kim 1
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Owing to their safety and low cost, aqueous rechargeable Zn-ion batteries (ARZIBs) are currently more feasible for grid-scale applications, as compared to their alkali counterparts such as lithium- and sodium-ion batteries (LIBs and SIBs), for both aqueous and nonaqueous systems. However, the materials used in ARZIBs have a poor rate capability and inadequate cycle lifespan, serving as a major handicap for long-term storage applications. Here, we report vanadium-based Na2V6O16·3H2O nanorods employed as a positive electrode for ARZIBs, which display superior electrochemical Zn storage properties. A reversible Zn2+-ion (de)intercalation reaction describing the storage mechanism is revealed using the in situ synchrotron X-ray diffraction technique. This cathode material delivers a very high rate capability and high capacity retention of more than 80% over 1000 cycles, at a current rate of 40C (1C = 361 mA g–1). The battery offers a specific energy of 90 W h kg–1 at a specific power of 15.8 KW kg–1, enlightening the material advantages for an eco-friendly atmosphere.
中文翻译：
Na 2 V 6 O 16 ·3H 2 O Barnesite纳米棒：敞开的大门，可将稳定的高能量显示为可充电锌离子电池正极
由于其安全性和低成本，目前，与锂离子和钠离子电池（LIB和SIB）等碱性对等物相比，水性可再充电Zn离子电池（ARZIB）在网格规模应用中更可行。水性和非水性系统。但是，ARZIB中使用的材料的定速能力差，循环寿命不足，这是长期存储应用的主要障碍。在这里，我们报道了钒基Na 2 V 6 O 16 ·3H 2 O纳米棒用作ARZIBs的正极，显示出优异的电化学Zn储存性能。可逆的Zn 2+使用原位同步加速器X射线衍射技术揭示了描述存储机理的离子离解反应。这种阴极材料在40C（1C = 361 mA g –1）的电流速率下，在1000次循环中具有极高的倍率能力和80％以上的高容量保持率。电池在15.8 KW kg –1的比功率下可提供90 W h kg –1的比能量，从而为环保型空气提供了材料优势。
更新日期：2018-03-23
中文翻译：
Na 2 V 6 O 16 ·3H 2 O Barnesite纳米棒：敞开的大门，可将稳定的高能量显示为可充电锌离子电池正极
由于其安全性和低成本，目前，与锂离子和钠离子电池（LIB和SIB）等碱性对等物相比，水性可再充电Zn离子电池（ARZIB）在网格规模应用中更可行。水性和非水性系统。但是，ARZIB中使用的材料的定速能力差，循环寿命不足，这是长期存储应用的主要障碍。在这里，我们报道了钒基Na 2 V 6 O 16 ·3H 2 O纳米棒用作ARZIBs的正极，显示出优异的电化学Zn储存性能。可逆的Zn 2+使用原位同步加速器X射线衍射技术揭示了描述存储机理的离子离解反应。这种阴极材料在40C（1C = 361 mA g –1）的电流速率下，在1000次循环中具有极高的倍率能力和80％以上的高容量保持率。电池在15.8 KW kg –1的比功率下可提供90 W h kg –1的比能量，从而为环保型空气提供了材料优势。
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