Vertically Aligned Sn(4+)Preintercalated Ti(2)CT(X)MXene Sphere with Enhanced Zn Ion Transportation and Superior Cycle Lifespan

doi:10.1002/aenm.202001394

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Vertically Aligned Sn(4+)Preintercalated Ti(2)CT(X)MXene Sphere with Enhanced Zn Ion Transportation and Superior Cycle Lifespan
	Li, Xinliang ; Li, Mian ; Yang, Qi ; Wang, Donghong ; Ma, Longtao ; Liang, Guojin ; Huang, Zhaodong ; Dong, Binbin ; Huang, Qing ; Zhi, Chunyi
刊名	ADVANCED ENERGY MATERIALS
	2020
卷号	10 期号:35
关键词	HIGH-VOLTAGE MXENE BATTERY PERFORMANCE TI2CTX CAPACITANCE STABILITY OXIDATION SURFACE
DOI	10.1002/aenm.202001394
英文摘要	While 2D MXenes have been widely used in energy storage systems, surface barriers induced by restacking of nanosheets and the limited kinetics resulting from insufficient interlayer spacing are two unresolved issues. Here an Sn(4+)preintercalated Ti(2)CT(X)with effectively enlarged interlayer spacing is synthesized. The preintercalated Ti(2)CT(X)is aligned on a carbon sphere to further enhance ion transportation by shortening the ion diffusion path and enhancing the reaction kinetics. As a result, when paired with a Zn anode, 12 500 cycles, which equals 2 800 h cycle time, and 5% capacity fluctuation are obtained, surpassing all reported MXene-based aqueous electrodes. At 0.1 A g(-1), the capacity reaches 138 mAh g(-1), and 92 mAh g(-1)remains even at 5 A g(-1). In addition, the low anti-self-discharge rate of 0.989 mV h(-1)associated with a high capacity retention of 80.5% over 548 h is obtained. Moreover, the fabricated quasi-solid capacitor based on a hydrogel film electrolyte exhibits good mechanical deformation and weather resistance. This work employs both preintercalation and alignment to MXene and achieves enhanced ion diffusion kinetics in an aqueous zinc ion capacitors (ZICs) system, which may be applied to other MXene batteries for enhanced performance.
学科主题	Chemistry ; Energy & Fuels ; Materials Science ; Physics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20599]
专题	2020专题
作者单位	1.Huang, Q (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Engn Lab Adv Energy Mat, Ningbo 315201, Zhejiang, Peoples R China. 2.Zhi, CY (corresponding author), City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China. 3.Zhi, CY (corresponding author), City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China.
推荐引用方式 GB/T 7714	Li, Xinliang,Li, Mian,Yang, Qi,et al. Vertically Aligned Sn(4+)Preintercalated Ti(2)CT(X)MXene Sphere with Enhanced Zn Ion Transportation and Superior Cycle Lifespan[J]. ADVANCED ENERGY MATERIALS,2020,10(35).
APA	Li, Xinliang.,Li, Mian.,Yang, Qi.,Wang, Donghong.,Ma, Longtao.,...&Zhi, Chunyi.(2020).Vertically Aligned Sn(4+)Preintercalated Ti(2)CT(X)MXene Sphere with Enhanced Zn Ion Transportation and Superior Cycle Lifespan.ADVANCED ENERGY MATERIALS,10(35).
MLA	Li, Xinliang,et al."Vertically Aligned Sn(4+)Preintercalated Ti(2)CT(X)MXene Sphere with Enhanced Zn Ion Transportation and Superior Cycle Lifespan".ADVANCED ENERGY MATERIALS 10.35(2020).