气候变化领域集成服务门户(CCPortal): Ultrafast rechargeable Zn micro-batteries endowing a wearable solar charging system with high overall efficiency

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DOI	10.1039/d0ee03623d
	Ultrafast rechargeable Zn micro-batteries endowing a wearable solar charging system with high overall efficiency
	Tian Z.; Sun Z.; Shao Y.; Gao L.; Huang R.; Shao Y.; Kaner R.B.; Sun J.
发表日期	2021
ISSN	17545692
起始页码	1602
结束页码	1611
卷号	14 期号:3
英文摘要	Wearable solar charging systems are now developing rapidly. However, their insufficient overall efficiency and poor charging rate remain daunting challenges. Herein, we report the rational design of a wearable solar charging unit based on a miniature GaAs solar cell and an ultrafast rechargeable Zn micro-battery. This integrated system demonstrates a high overall efficiency of 23.11%. Upon solar charging for 5 s, the system delivers a continuous supply of power for 110 s at 0.5 mA cm-2, showing favorable fast charging performance characteristics. With the aid of in-depth characterization combined with theoretical simulations, the electrochemical energy storage mechanism of the zinc ion battery is elucidated as the synergy of hydroxyl anion intercalation with surface pseudocapacitive reaction. This work provides an innovative strategy to construct wearable solar charging units with high efficiency and advanced charging capabilities. © 2021 The Royal Society of Chemistry.
英文关键词	Energy storage; Fast charging (Batteries); Gallium arsenide; III-V semiconductors; Miniature batteries; Solar cells; Surface reactions; Wearable technology; Zinc; Advanced charging; Charging performance; Electrochemical energy storage; Innovative strategies; Integrated systems; Overall efficiency; Pseudocapacitive; Theoretical simulation; Secondary batteries; efficiency measurement; instrumentation; solar power; zinc
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/190735
作者单位	College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou, 215006, China; SUDA-BGI Collaborative Innovation Center, Soochow University, Suzhou, 215006, China; Beijing Graphene Institute (BGI), Beijing, 100095, China; Department of Chemistry and Biochemistry, Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles (UCLA), United States
推荐引用方式 GB/T 7714	Tian Z.,Sun Z.,Shao Y.,et al. Ultrafast rechargeable Zn micro-batteries endowing a wearable solar charging system with high overall efficiency[J],2021,14(3).
APA	Tian Z..,Sun Z..,Shao Y..,Gao L..,Huang R..,...&Sun J..(2021).Ultrafast rechargeable Zn micro-batteries endowing a wearable solar charging system with high overall efficiency.Energy & Environmental Science,14(3).
MLA	Tian Z.,et al."Ultrafast rechargeable Zn micro-batteries endowing a wearable solar charging system with high overall efficiency".Energy & Environmental Science 14.3(2021).