Ultrahigh-Capacity and Fire-Resistant LiFePO4-Based Composite Cathodes for Advanced Lithium-Ion Batteries

doi:10.1002/aenm.201802930

	Ultrahigh-Capacity and Fire-Resistant LiFePO4-Based Composite Cathodes for Advanced Lithium-Ion Batteries
	Li, Heng; Peng, Long; Wu, Dabei; Wu, Jin; Zhu, Ying-Jie; Hu, Xianluo
刊名	ADVANCED ENERGY MATERIALS
	2019-03-13
卷号	9 期号:10
关键词	cathodes fire resistance lithium-ion batteries self-assembly ultrahigh capacity
ISSN号	1614-6832
DOI	10.1002/aenm.201802930
文献子类	Article
英文摘要	The growing demand for advanced energy storage devices with high energy density and high safety has continuously driven the technical upgrades of cell architectures as well as electroactive materials. Designing thick electrodes with more electroactive materials is a promising strategy to improve the energy density of lithium-ion batteries (LIBs) without alternating the underlying chemistry. However, the progress toward thick, high areal capacity electrodes is severely limited by the sluggish electronic/ionic transport and easy deformability of conventional electrodes. A self-supported ultrahigh-capacity and fire-resistant LiFePO4 (UCFR-LFP)-based nanocomposite cathode is demonstrated here. Benefiting from the structural and chemical uniqueness, the UCFR-LFP electrodes demonstrate exceptional improvements in electrochemical performance and mass loading of active materials, and thermal stability. Notably, an ultrathick UCFR-LFP electrode (1.35 mm) with remarkably high mass loading of active materials (108 mg cm(-2)) and areal capacity (16.4 mAh cm(-2)) is successfully achieved. Moreover, the 1D inorganic binder-like ultralong hydroxyapatite nanowires (HAP NWs) enable the UCFR-LFP electrode with excellent thermal stability (structural integrity up to 1000 degrees C and electrochemical activity up to 750 degrees C), fire-resistance, and wide-temperature operability. Such a unique UCFR-LFP electrode offers a promising solution for next-generation LIBs with high energy density, high safety, and wide operating-temperature window.
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27281]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Li, Heng,Peng, Long,Wu, Dabei,et al. Ultrahigh-Capacity and Fire-Resistant LiFePO4-Based Composite Cathodes for Advanced Lithium-Ion Batteries[J]. ADVANCED ENERGY MATERIALS,2019,9(10).
APA	Li, Heng,Peng, Long,Wu, Dabei,Wu, Jin,Zhu, Ying-Jie,&Hu, Xianluo.(2019).Ultrahigh-Capacity and Fire-Resistant LiFePO4-Based Composite Cathodes for Advanced Lithium-Ion Batteries.ADVANCED ENERGY MATERIALS,9(10).
MLA	Li, Heng,et al."Ultrahigh-Capacity and Fire-Resistant LiFePO4-Based Composite Cathodes for Advanced Lithium-Ion Batteries".ADVANCED ENERGY MATERIALS 9.10(2019).