Nano Letters, volume 18, issue 10, pages 6113-6120

PVDF/Palygorskite Nanowire Composite Electrolyte for 4 V Rechargeable Lithium Batteries with High Energy Density

Jia Zhu 1
Bin Zhu 1, 2
H Zhai 1
Xiangbiao Liao 3
Yuxiang Zhu 1
Wei-Heng Xu 1
Qian Cheng 1
Charles Jayyosi 4
Zheng Li 5
Jia Zhu 2
Xi Chen 3
Yuan Yang 1
Publication typeJournal Article
Publication date2018-08-31
Journal: Nano Letters
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor10.8
ISSN15306984, 15306992
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Bioengineering
Abstract
Solid electrolytes are crucial for the development of solid state batteries. Among different types of solid electrolytes, poly(ethylene oxide) (PEO)-based polymer electrolytes have attracted extensive attention owing to their excellent flexibility and easiness for processing. However, their relatively low ionic conductivities and electrochemical instability above 4 V limit their applications in batteries with high energy density. Herein, we prepared poly(vinylidene fluoride) (PVDF) polymer electrolytes with an organic plasticizer, which possesses compatibility with 4 V cathode and high ionic conductivity (1.2 × 10-4 S/cm) at room temperature. We also revealed the importance of plasticizer content to the ionic conductivity. To address weak mechanical strength of the PVDF electrolyte with plasticizer, we introduced palygorskite ((Mg,Al)2Si4O10(OH)) nanowires as a new ceramic filler to form composite solid electrolytes (CPE), which greatly enhances both stiffness and toughness of PVDF-based polymer electrolyte. With 5 wt % of palygorskite nanowires, not only does the elastic modulus of PVDF CPE increase from 9.0 to 96 MPa but also its yield stress is enhanced by 200%. Moreover, numerical modeling uncovers that the strong nanowire-polymer interaction and cross-linking network of nanowires are responsible for such significant enhancement in mechanically robustness. The addition of 5% palygorskite nanowires also enhances transference number of Li+ from 0.21 to 0.54 due to interaction between palygorskite and ClO4- ions. We further demonstrate full cells based on Li(Ni1/3Mn1/3Co1/3)O2 (NMC111) cathode, PVDF/palygorskite CPE, and lithium anode, which can be cycled over 200 times at 0.3 C, with 97% capacity retention. Moreover, the PVDF matrix is much less flammable than PEO electrolytes. Our work illustrates that the PVDF/palygorskite CPE is a promising electrolyte for solid state batteries.

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GOST |
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GOST Copy
Zhu J. et al. PVDF/Palygorskite Nanowire Composite Electrolyte for 4 V Rechargeable Lithium Batteries with High Energy Density // Nano Letters. 2018. Vol. 18. No. 10. pp. 6113-6120.
GOST all authors (up to 50) Copy
Zhu J., Zhu B., Zhai H., Liao X., Zhu Y., Xu W., Cheng Q., Jayyosi C., Li Z., Zhu J., Myers K., Chen X., Yang Y. PVDF/Palygorskite Nanowire Composite Electrolyte for 4 V Rechargeable Lithium Batteries with High Energy Density // Nano Letters. 2018. Vol. 18. No. 10. pp. 6113-6120.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/acs.nanolett.8b01421
UR - https://doi.org/10.1021/acs.nanolett.8b01421
TI - PVDF/Palygorskite Nanowire Composite Electrolyte for 4 V Rechargeable Lithium Batteries with High Energy Density
T2 - Nano Letters
AU - Jayyosi, Charles
AU - Zhu, Jia
AU - Zhai, H
AU - Liao, Xiangbiao
AU - Cheng, Qian
AU - Zhu, Jia
AU - Yang, Yuan
AU - Zhu, Bin
AU - Zhu, Yuxiang
AU - Xu, Wei-Heng
AU - Li, Zheng
AU - Myers, Kristin
AU - Chen, Xi
PY - 2018
DA - 2018/08/31 00:00:00
PB - American Chemical Society (ACS)
SP - 6113-6120
IS - 10
VL - 18
SN - 1530-6984
SN - 1530-6992
ER -
BibTex |
Cite this
BibTex Copy
@article{2018_Zhu,
author = {Charles Jayyosi and Jia Zhu and H Zhai and Xiangbiao Liao and Qian Cheng and Jia Zhu and Yuan Yang and Bin Zhu and Yuxiang Zhu and Wei-Heng Xu and Zheng Li and Kristin Myers and Xi Chen},
title = {PVDF/Palygorskite Nanowire Composite Electrolyte for 4 V Rechargeable Lithium Batteries with High Energy Density},
journal = {Nano Letters},
year = {2018},
volume = {18},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/acs.nanolett.8b01421},
number = {10},
pages = {6113--6120},
doi = {10.1021/acs.nanolett.8b01421}
}
MLA
Cite this
MLA Copy
Zhu, Jia, et al. “PVDF/Palygorskite Nanowire Composite Electrolyte for 4 V Rechargeable Lithium Batteries with High Energy Density.” Nano Letters, vol. 18, no. 10, Aug. 2018, pp. 6113-6120. https://doi.org/10.1021/acs.nanolett.8b01421.
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