Materials Chemistry and Physics, volume 239, pages 122014

A novel polyphosphonate flame-retardant additive towards safety-reinforced all-solid-state polymer electrolyte

Publication typeJournal Article
Publication date2020-01-01
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor4.6
ISSN02540584
Condensed Matter Physics
General Materials Science
Abstract
Poly(ethylene oxide) (PEO) is by far the most popular solid polymer electrolyte material in the solid-state battery field. However, PEO polymer itself is readily flammable and detrimental to battery safety issue. Herein, a novel alkylpolyphosphonate flame retardant of poly(bis(4-phenoxyl)propane methylphosphonate) (PBMP) has been designed. Its structure was characterized by FTIR, 1H NMR, and 31P NMR. The flame-retardant performance of the PEO/PBMP was investigated by limited oxygen index (LOI), vertical burning test (UL 94) and microcombustion calorimeter (MCC). The PBMP exhibits excellent flame retardant effects in PEO. The PEO/PBMP blend with 3 wt% of phosphorus reaches UL94 V-0 rating and possesses a LOI value of 25.6%. The MCC results revealed that the total heat release (THR) of the PEO/PBMP blend decreased by 15.4% compared with the pure PEO. In addition, PEO/PBMP blend exhibits good electrochemical stability window at 4.0 V vs. Li/Li+ and enhanced ionic conductivity of 1.25 × 10−5 S cm−1 at ambient temperature. The stable charge/discharging behavior and cycling capability verify that the polyphosphonate additive has no discernible side effects on battery performance. Therefore, the polyphosphonate PBMP is an intriguing polymeric flame retardant within solid polymer electrolyte towards safety-reinforced battery.

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GOST Copy
Liu X. et al. A novel polyphosphonate flame-retardant additive towards safety-reinforced all-solid-state polymer electrolyte // Materials Chemistry and Physics. 2020. Vol. 239. p. 122014.
GOST all authors (up to 50) Copy
Liu X., Zhang C., Gao S., Cai S., Wang Q., Liu J., Liu Z. A novel polyphosphonate flame-retardant additive towards safety-reinforced all-solid-state polymer electrolyte // Materials Chemistry and Physics. 2020. Vol. 239. p. 122014.
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RIS Copy
TY - JOUR
DO - 10.1016/j.matchemphys.2019.122014
UR - https://doi.org/10.1016/j.matchemphys.2019.122014
TI - A novel polyphosphonate flame-retardant additive towards safety-reinforced all-solid-state polymer electrolyte
T2 - Materials Chemistry and Physics
AU - Liu, Xueqing
AU - Zhang, Chang
AU - Gao, Shuyu
AU - Cai, Shaojun
AU - Wang, Qingfu
AU - Liu, Ji-yan
AU - Liu, Zhihong
PY - 2020
DA - 2020/01/01 00:00:00
PB - Elsevier
SP - 122014
VL - 239
SN - 0254-0584
ER -
BibTex
Cite this
BibTex Copy
@article{2020_Liu,
author = {Xueqing Liu and Chang Zhang and Shuyu Gao and Shaojun Cai and Qingfu Wang and Ji-yan Liu and Zhihong Liu},
title = {A novel polyphosphonate flame-retardant additive towards safety-reinforced all-solid-state polymer electrolyte},
journal = {Materials Chemistry and Physics},
year = {2020},
volume = {239},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/j.matchemphys.2019.122014},
pages = {122014},
doi = {10.1016/j.matchemphys.2019.122014}
}
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