Solid electrolyte based on waterborne polyurethane and poly(ethylene oxide) blend polymer for all-solid-state lithium ion batteries

Bao, Junjie; Qu, Xinbo; Qi, Guoqin; Huang, Qikai; Wu, Shufan; Tao, Can; Gao, Minghao; Chen, Chunhua

doi:10.1016/j.ssi.2018.02.030

Cited by 78 publications

(57 citation statements)

References 60 publications

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“…In order to comply with the development trend of green and environmental protection, many researchers began to study waterborne polyurethane (WPU) as the matrix of SPE. Although the WPU‐based solid polymer electrolytes possess good thermal stability and mechanical properties, the ionic conductivity is still too lower, 20–23 especially at room temperature. Recently, we reported a novel polymer electrolyte matrix incorporating ionic liquid into waterborne polyurethane 24 .…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of a novel green solid polymer electrolyte for all‐solid‐state lithium battery

Zhang

Liu

Zou

et al. 2021

J of Applied Polymer Sci

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Solid polymer electrolyte (SPE)‐based lithium batteries have easy processing and safety for energy vehicles and storage. However, the preparation process of SPEs mostly used a lot of organic solvents, which will threaten human living space and body health. Herein, a novel green solid polymer electrolyte (ionic liquid type waterborne polyurethane, IWPUS) without no organic solvents was prepared from hybrids of ionic liquid‐based waterborne polyurethane (IWPU) and LiClO4. The structure and properties of IWPUS were investigated by IR, SEM, XRD, TGA, ion conductivity test. The results showed that Li+ of LiClO4 could coordinate with CO and COC in the polyurethane matrix. LiClO4 had been well dispersed in IWPU. The conductivity of IWPUS increased with the increase of LiClO4 content. The higher conductivity of IWPUS with 20% LiClO4 at 80°C was 1.8 × 10−4 s•cm−1. IWPUS based on ionic liquid‐based waterborne polyurethane would be promised to become an environmentally friendly candidate for all solid‐state lithium ion batteries.

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Section: Introductionmentioning

confidence: 99%

Preparation and properties of a novel green solid polymer electrolyte for all‐solid‐state lithium battery

Zhang

Liu

Zou

et al. 2021

J of Applied Polymer Sci

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“…The whole system benefits from these two-phases since that the hard parts afford spacial stability and the soft phases are conducive to good ionic conductivity [ 9 ]. Due to this unique structure, WPU has been identified as a potential candidate polymer matrix for solid polymer electrolytes (SPEs) recently [ 10 ]. Bao et al prepared comb-like nonionic WPU based SPEs with ionic conductivity reaching 5.44 × 10 −6 S·cm −1 when the electrolyte contained 15 wt% LiClO 4 at 40 °C and SPE15 possessed a wide electrochemical stability window of 0–5 V (vs. Li+/Li) and thermal stability at 140 °C [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Polymer Electrolyte Matrix Incorporating Ionic Liquid into Waterborne Polyurethane for Lithium-Ion Battery

et al. 2020

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Ionic liquid has relatively high conductivity at room temperature and good electrochemical stability. Ionic liquid polymer electrolytes have some advantages of both ionic liquid and polymer. In this work, 1-alkyl-3-(2′,3′-dihydroxypropyl)imidazolium chloride (IL-Cl) was incorporated into waterborne polyurethane chain to composite all-solid-state polymer electrolyte matrices. The structure, thermal stability, mechanical property and ionic conductivity of the matrices were investigated by Fourier transform infrared spectroscopy (FTIR), thermogravimetric Analysis (TGA), tensile measurement and electrochemical impedance spectroscopy (EIS). The results demonstrated that when the content of IL-Cl was 14 wt%, the mechanical property of film was optimized, with a maximum tensile strength of 36 MPa and elongation at break of 1030%. In addition, as for the film with IL-Cl content of 16 wt%, its oxygen index value increased to 25.2% and ionic conductivity reached a maximum of 1.2 × 10−5 S·cm−1 at room temperature, showing high flame retardancy and ionic conductivity.

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“…The ionic conductivity (σ) of the samples sandwiched between two stainless‐steel (SS) blocking electrodes were calculated according to Equation () 23,24

normalσ = \frac{d}{R_{b} S}

where R b (Ω) is the bulk electrolyte resistance, d (cm) is the thickness of the polymer solid electrolyte sheet, and S (cm 2 ) is the area of the electrode.…”

Section: Methodsmentioning

confidence: 99%

“…Its soft segments can act as the solvent to dissolve the lithium salt, and the hard segments can be functionalized to maintain stable mechanical properties. Furthermore, its flexible molecular chains and a mass of strong electron‐donating groups make HBPUE a potential polymer matrix of polymer electrolyte material, which can facilitate the ion migration and element diffusion during the anodic bonding 23 . In addition, it is well known that the solid electrolyte based on polyethylene oxide (PEO), first reported by Wright in 1973 is the earliest and widely studied solid polymer electrolyte 24–26 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of electrolyte substrate materials based on hyperbranched polyurethane elastomers for anodic bonding

Zhang

Wang

Zhao³

et al. 2021

J of Applied Polymer Sci

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A series of hyperbranched polyurethane elastomers (PEO‐HBPUEs) as polymer electrolyte substrate materials was developed for anodic bonding with aluminum (Al) foil in micro‐electro‐mechanical system (MEMS) devices. The PEO‐HBPUEs were prepared by pre‐polymerization method with toluene‐2,4‐diisocyanate(TDI), polypropylene glycol (PPG), 1,4‐butanediol(BDO), trimethylolpropane(TMP), lithium bis(trifluoromethanesulphonyl)imide (LiTFSI), and polyethylene oxide (PEO)‐based electrolyte in varying proportions via solution casting technique at room temperature. All prepared PEO‐HBPUEs exhibited low glass transition temperatures, good thermal stabilities, and suitable mechanical properties. The XRD results showed that PEO‐HBPUEs are amorphous, and LiTFSI was well dissolved in the polymer matrix. The component of PEO‐based electrolyte in PEO‐HBPUEs contributed to increase the ionic conductivity, of which the highest value reached 1.23 × 10−3 S/cm at 75°C for PEO‐HBPUE4. The anodic bonding of PEO‐HBPUE substrate with Al foil was conducted by the coupling action of electric field, temperature field, and pressure field. A clear intermediate bonding layer between the substrate and Al foil was observed and the elements diffusion around bonding layer can be detected by SEM, indicating PEO‐HBPUEs and Al foil have been jointed together successfully. The highest tensile strength of the bonding interface of PEO‐HBPUE4/Al reached 1.88 MPa. All results demonstrated that the prepared PEO‐HBPUEs materials would be promising substrates for flexible MEMS device that can be applied to flexible packaging by anodic bonding technology.

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Solid electrolyte based on waterborne polyurethane and poly(ethylene oxide) blend polymer for all-solid-state lithium ion batteries

Cited by 78 publications

References 60 publications

Preparation and properties of a novel green solid polymer electrolyte for all‐solid‐state lithium battery

Preparation and properties of a novel green solid polymer electrolyte for all‐solid‐state lithium battery

A Novel Polymer Electrolyte Matrix Incorporating Ionic Liquid into Waterborne Polyurethane for Lithium-Ion Battery

Synthesis and characterization of electrolyte substrate materials based on hyperbranched polyurethane elastomers for anodic bonding

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