气候变化领域集成服务门户(CCPortal): Ionogel-based sodium ion micro-batteries with a 3D Na-ion diffusion mechanism enable ultrahigh rate capability

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DOI	10.1039/c9ee03219c
	Ionogel-based sodium ion micro-batteries with a 3D Na-ion diffusion mechanism enable ultrahigh rate capability
	Zheng S.; Huang H.; Dong Y.; Wang S.; Zhou F.; Qin J.; Sun C.; Yu Y.; Wu Z.-S.; Bao X.
发表日期	2020
ISSN	17545692
起始页码	821
结束页码	829
卷号	13 期号:3
英文摘要	The rapid development of microelectronics and microsystems has stimulated the continuous evolution of high-performance and cost-effective micro-batteries. Despite their competitiveness with huge application potential, sodium ion micro-batteries (NIMBs) are still underdeveloped. Herein, we demonstrate one prototype of a quasi-solid-state planar ionogel-based NIMB constructed by separator-free interdigital microelectrodes of sodium titanate anode and sodium vanadate phosphate cathode, both of which are embedded into a three-dimensional interconnected graphene scaffold. Meanwhile, a novel NaBF4-based ionogel electrolyte with robust ionic conductivity of 8.1 mS cm-1 was used. Benefiting from the synergetic merits from the planar architecture, dominant pseudocapacitance contribution, and 3D multi-directional Na-ion diffusion mechanism, the as-assembled NIMBs exhibit high volumetric capacity of 30.7 mA h cm-3 at 1C, and high rate performance with 15.7 mA h cm-3 at 30C at room temperature and 13.5 mA h cm-3 at 100C at a high temperature of 100 °C. Moreover, the quasi-solid-state NIMBs present outstanding flexibility, tunable voltage and capacity output, and remarkable areal energy density of 145 μW h cm-2 (55.6 mW h cm-3). Therefore, this work will provide numerous chances to construct planar NIMBs for microsystems. © 2020 The Royal Society of Chemistry.
英文关键词	Cost effectiveness; Electrolytes; Metal ions; Microelectrodes; Microelectronics; Microsystems; Miniature batteries; Scaffolds; Sodium compounds; High temperature; High-rate performance; Microelectronics and microsystems; Planar architecture; Pseudocapacitance; Quasi-solid state; Sodium titanates; Volumetric capacity; Sodium-ion batteries; diffusion; electrode; electrolyte; fuel cell; high temperature; sodium
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189688
作者单位	Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China; State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China; University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing, 100049, China; Hefei National Laboratory for Physical Sciences, Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei Anhui, 230026, China; State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei Anhui, 230026, China
推荐引用方式 GB/T 7714	Zheng S.,Huang H.,Dong Y.,et al. Ionogel-based sodium ion micro-batteries with a 3D Na-ion diffusion mechanism enable ultrahigh rate capability[J],2020,13(3).
APA	Zheng S..,Huang H..,Dong Y..,Wang S..,Zhou F..,...&Bao X..(2020).Ionogel-based sodium ion micro-batteries with a 3D Na-ion diffusion mechanism enable ultrahigh rate capability.Energy & Environmental Science,13(3).
MLA	Zheng S.,et al."Ionogel-based sodium ion micro-batteries with a 3D Na-ion diffusion mechanism enable ultrahigh rate capability".Energy & Environmental Science 13.3(2020).