Probing the failure mechanism of nanoscale LiFePO{sub 4} for Li-ion batteries
Abstract
LiFePO{sub 4} is a high power rate cathode material for lithium ion battery and shows remarkable capacity retention, featuring a 91% capacity retention after 3300 cycles. In this work, we use high-resolution transmission electron microscopy and electron energy loss spectroscopy to study the gradual capacity fading mechanism of LiFePO{sub 4} materials. We found that upon prolonged electrochemical cycling of the battery, the LiFePO{sub 4} cathode shows surface amorphization and loss of oxygen species, which directly contribute to the gradual capacity fading of the battery. The finding can guide the design and improvement of LiFePO{sub 4} cathode for high-energy and high-power rechargeable battery for electric transportation.
- Authors:
-
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352 (United States)
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352 (United States)
- Publication Date:
- OSTI Identifier:
- 22402481
- Resource Type:
- Journal Article
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 106; Journal Issue: 20; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AMORPHOUS STATE; CATHODES; ELECTROCHEMISTRY; ENERGY-LOSS SPECTROSCOPY; IRON COMPOUNDS; LITHIUM COMPOUNDS; LITHIUM ION BATTERIES; NANOSTRUCTURES; OXYGEN; PHOSPHATES; TRANSMISSION ELECTRON MICROSCOPY
Citation Formats
Gu, Meng, Yan, Pengfei, Wang, Chongmin, Shi, Wei, National Active Distribution Network Technology Research Center, School of Electrical Engineering, Beijing Jiaotong University, 3 Shangyuancun Street, Haidian District, Beijing 100044, Zheng, Jianming, and Zhang, Ji-guang. Probing the failure mechanism of nanoscale LiFePO{sub 4} for Li-ion batteries. United States: N. p., 2015.
Web. doi:10.1063/1.4921628.
Gu, Meng, Yan, Pengfei, Wang, Chongmin, Shi, Wei, National Active Distribution Network Technology Research Center, School of Electrical Engineering, Beijing Jiaotong University, 3 Shangyuancun Street, Haidian District, Beijing 100044, Zheng, Jianming, & Zhang, Ji-guang. Probing the failure mechanism of nanoscale LiFePO{sub 4} for Li-ion batteries. United States. https://doi.org/10.1063/1.4921628
Gu, Meng, Yan, Pengfei, Wang, Chongmin, Shi, Wei, National Active Distribution Network Technology Research Center, School of Electrical Engineering, Beijing Jiaotong University, 3 Shangyuancun Street, Haidian District, Beijing 100044, Zheng, Jianming, and Zhang, Ji-guang. 2015.
"Probing the failure mechanism of nanoscale LiFePO{sub 4} for Li-ion batteries". United States. https://doi.org/10.1063/1.4921628.
@article{osti_22402481,
title = {Probing the failure mechanism of nanoscale LiFePO{sub 4} for Li-ion batteries},
author = {Gu, Meng and Yan, Pengfei and Wang, Chongmin and Shi, Wei and National Active Distribution Network Technology Research Center, School of Electrical Engineering, Beijing Jiaotong University, 3 Shangyuancun Street, Haidian District, Beijing 100044 and Zheng, Jianming and Zhang, Ji-guang},
abstractNote = {LiFePO{sub 4} is a high power rate cathode material for lithium ion battery and shows remarkable capacity retention, featuring a 91% capacity retention after 3300 cycles. In this work, we use high-resolution transmission electron microscopy and electron energy loss spectroscopy to study the gradual capacity fading mechanism of LiFePO{sub 4} materials. We found that upon prolonged electrochemical cycling of the battery, the LiFePO{sub 4} cathode shows surface amorphization and loss of oxygen species, which directly contribute to the gradual capacity fading of the battery. The finding can guide the design and improvement of LiFePO{sub 4} cathode for high-energy and high-power rechargeable battery for electric transportation.},
doi = {10.1063/1.4921628},
url = {https://www.osti.gov/biblio/22402481},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 20,
volume = 106,
place = {United States},
year = {Mon May 18 00:00:00 EDT 2015},
month = {Mon May 18 00:00:00 EDT 2015}
}
Works referencing / citing this record:
Direct regeneration of cathode materials from spent lithium iron phosphate batteries using a solid phase sintering method
journal, January 2017
- Song, X.; Hu, T.; Liang, C.
- RSC Advances, Vol. 7, Issue 8
First-Principles Study of the Impact of Grain Boundary Formation in the Cathode Material LiFePO4
journal, September 2019
- Kuriplach, Jan; Pulkkinen, Aki; Barbiellini, Bernardo
- Condensed Matter, Vol. 4, Issue 3