A flame retarded polymer-based composite solid electrolyte improved by natural polysaccharides

Yanbing Chen; Yuxiao Wang; Zhen Li; Dandan Wang; Hua Yuan; Hongzhang Zhang; Yeqiang Tan

doi:10.1016/j.coco.2021.100774

A flame retarded polymer-based composite solid electrolyte improved by natural polysaccharides

Yanbing Chen, Yuxiao Wang, Zhen Li, Dandan Wang, Hua Yuan, Hongzhang Zhang, Yeqiang Tan

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

Solid electrolyte has good mechanical strength and can effectively inhibit the growth of lithium dendrite, so it has a good application prospect in lithium batteries, especially solid polymer electrolyte (SPE), such as PEO. Due to the stability of lithium metal and the excellent dissociation ability of lithium salts, PEO and its derivatives are the mainstream SPE materials. PEO performs best at high temperatures. However, the flammability and fluidity of PEO at high temperatures may pose safety concerns. In this study, sodium alginate (SA) was introduced into PEO to improve the mechanical properties of SPE and the safety of the battery through the nanofiber membrane structure. The PEO/SA composite solid electrolyte has excellent flame retardance (LOI = 28.6), good thermal stability (>120 °C) and wide electrochemical window (>4.6 V). This will help further research on lithium batteries with high energy density and voltage.

Original language	English
Article number	100774
Journal	Composites Communications
Volume	26
DOIs	https://doi.org/10.1016/j.coco.2021.100774
State	Published - Aug 2021
Externally published	Yes

Keywords

Flame retardance
Lithium batteries
Sodium alginate
Solid polymer electrolytes

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10.1016/j.coco.2021.100774

Cite this

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title = "A flame retarded polymer-based composite solid electrolyte improved by natural polysaccharides",

abstract = "Solid electrolyte has good mechanical strength and can effectively inhibit the growth of lithium dendrite, so it has a good application prospect in lithium batteries, especially solid polymer electrolyte (SPE), such as PEO. Due to the stability of lithium metal and the excellent dissociation ability of lithium salts, PEO and its derivatives are the mainstream SPE materials. PEO performs best at high temperatures. However, the flammability and fluidity of PEO at high temperatures may pose safety concerns. In this study, sodium alginate (SA) was introduced into PEO to improve the mechanical properties of SPE and the safety of the battery through the nanofiber membrane structure. The PEO/SA composite solid electrolyte has excellent flame retardance (LOI = 28.6), good thermal stability (>120 °C) and wide electrochemical window (>4.6 V). This will help further research on lithium batteries with high energy density and voltage.",

keywords = "Flame retardance, Lithium batteries, Sodium alginate, Solid polymer electrolytes",

author = "Yanbing Chen and Yuxiao Wang and Zhen Li and Dandan Wang and Hua Yuan and Hongzhang Zhang and Yeqiang Tan",

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doi = "10.1016/j.coco.2021.100774",

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journal = "Composites Communications",

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TY - JOUR

T1 - A flame retarded polymer-based composite solid electrolyte improved by natural polysaccharides

AU - Chen, Yanbing

AU - Wang, Yuxiao

AU - Li, Zhen

AU - Wang, Dandan

AU - Yuan, Hua

AU - Zhang, Hongzhang

AU - Tan, Yeqiang

PY - 2021/8

Y1 - 2021/8

N2 - Solid electrolyte has good mechanical strength and can effectively inhibit the growth of lithium dendrite, so it has a good application prospect in lithium batteries, especially solid polymer electrolyte (SPE), such as PEO. Due to the stability of lithium metal and the excellent dissociation ability of lithium salts, PEO and its derivatives are the mainstream SPE materials. PEO performs best at high temperatures. However, the flammability and fluidity of PEO at high temperatures may pose safety concerns. In this study, sodium alginate (SA) was introduced into PEO to improve the mechanical properties of SPE and the safety of the battery through the nanofiber membrane structure. The PEO/SA composite solid electrolyte has excellent flame retardance (LOI = 28.6), good thermal stability (>120 °C) and wide electrochemical window (>4.6 V). This will help further research on lithium batteries with high energy density and voltage.

AB - Solid electrolyte has good mechanical strength and can effectively inhibit the growth of lithium dendrite, so it has a good application prospect in lithium batteries, especially solid polymer electrolyte (SPE), such as PEO. Due to the stability of lithium metal and the excellent dissociation ability of lithium salts, PEO and its derivatives are the mainstream SPE materials. PEO performs best at high temperatures. However, the flammability and fluidity of PEO at high temperatures may pose safety concerns. In this study, sodium alginate (SA) was introduced into PEO to improve the mechanical properties of SPE and the safety of the battery through the nanofiber membrane structure. The PEO/SA composite solid electrolyte has excellent flame retardance (LOI = 28.6), good thermal stability (>120 °C) and wide electrochemical window (>4.6 V). This will help further research on lithium batteries with high energy density and voltage.

KW - Flame retardance

KW - Lithium batteries

KW - Sodium alginate

KW - Solid polymer electrolytes

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DO - 10.1016/j.coco.2021.100774

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SN - 2452-2139

VL - 26

JO - Composites Communications

JF - Composites Communications

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ER -

A flame retarded polymer-based composite solid electrolyte improved by natural polysaccharides

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Keywords

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