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The synergistic effect of the PEO-PVA-PESf composite polymer electrolyte for all-solid-state lithium-ion batteries.

ABSTRACT: Blending with poly(vinyl alcohol) (PVA) and poly(oxyphenylene sulfone) (PESf) has been investigated to improve the properties of a polymer electrolyte based on a poly(ethylene oxide) (PEO) matrix. The composite electrolyte shows a high ionic conductivity of 0.83 × 10^-3 S cm^-1 at 60 °C due to the significant inhibition of crystallization caused by the synergistic effects of PVA and PESf. The symmetrical cell Li/CPE/Li is continuously operated for at least 200 hours at a current density of 0.1 mA cm^-2 without the enhancement in the polarization potential. In addition, the all-solid-state LiFePO₄/CPE/Li cells exhibit small hysteresis potential (about 0.10 V), good cycle stability and excellent reversible capacity (126 mA h g^-1 after 100 cycles).

SUBMITTER: Xu L

PROVIDER: S-EPMC9049283 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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The synergistic effect of the PEO-PVA-PESf composite polymer electrolyte for all-solid-state lithium-ion batteries.

Xu Ling L Wei Kaiyuan K Cao Yong Y Ma Shiping S Li Jian J Zhao Yu Y Cui Yixiu Y Cui Yanhua Y

RSC advances 20200101 9

Blending with poly(vinyl alcohol) (PVA) and poly(oxyphenylene sulfone) (PESf) has been investigated to improve the properties of a polymer electrolyte based on a poly(ethylene oxide) (PEO) matrix. The composite electrolyte shows a high ionic conductivity of 0.83 × 10<sup>-3</sup> S cm<sup>-1</sup> at 60 °C due to the significant inhibition of crystallization caused by the synergistic effects of PVA and PESf. The symmetrical cell Li/CPE/Li is continuously operated for at least 200 hours at a curr ...[more]

PMID: 35498273

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