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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
2019-03-13
Source PublicationADVANCED ENERGY MATERIALS
ISSN1614-6832
Volume9Issue:10
SubtypeArticle
AbstractThe 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.
Keywordcathodes fire resistance lithium-ion batteries self-assembly ultrahigh capacity
DOI10.1002/aenm.201802930
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science ; Physics
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27281
Collection中国科学院上海硅酸盐研究所
Recommended Citation
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).
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