The effect of type of the inorganic filler and dopant salt concentration on the PEO–LiClO4 based composite electrolyte–lithium electrode interfacial resistivity

Bac, A.; Ciosek, Marcin; Bukat, M.; Marczewski, Marek; Marczewska, H.; Wieczorek, W.

doi:10.1016/j.jpowsour.2006.02.037

Cited by 20 publications

(10 citation statements)

References 16 publications

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“…R b was the bulk impedance of the electrolyte, electrode at the high‐frequency region of Nyquist plots, and R int was the interface impedance between the electrode and the GCPE at the semicircle region of Nyquist plots. Generally, the nonideal contact and formation of the passivation layer on the Li electrode would cause the interface impedance between the electrolyte and Li electrode up to 10 3 Ω, 40,41 and the R int was also relate to the charge–discharge reaction of Li + . Figure 6(e) showed the R b of PEO‐POPM‐24 and PEO‐POPM‐32 has more slight change than other composite polymer electrolyte during storage.…”

Section: Resultsmentioning

confidence: 99%

“…F I G U R E 5 The electrochemical stability window of the Li/GCPE/SS at potential range of 2-6 V (vs. Li + /Li) (scan rate 0.5 mV/s). PEO, poly(ethylene oxide) [Color figure can be viewed at wileyonlinelibrary.com]would cause the interface impedance between the electrolyte and Li electrode up to 10 3 Ω,40,41 and the R int was also relate to the charge-discharge reaction of Li + .Figure 6(e) showed the R b of PEO-POPM-24 and PEO-POPM-32 has more slight change than other composite polymer electrolyte during storage. These results suggested that a certain amount of PEO is favorable to the stability of the R b of the GCPE.…”

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confidence: 99%

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Study of poly(organic palygorskite‐methyl methacrylate)/poly(ethylene oxide) blended gel polymer electrolyte for lithium‐ion batteries

Zhang

Wang

Chen

et al. 2020

J of Applied Polymer Sci

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In this study, the composite polymer was prepared by blending poly(ethylene oxide) (PEO) and POPM (the copolymer of methyl methacrylate [MMA] and organically modified palygorskite), and then the composite polymer based membrane was obtained by phase-inversion method. The scanning electron microscopy results showed that the composite polymer membrane has a threedimensional network structure. X-ray diffraction results indicated that the crystalline region of PEO is disappeared when introduction of a certain amount of the PEO. Meanwhile, the elongation of composite polymer membrane increased when increasing PEO concentration, but the value of tensile strength of PEO-POPM membrane decreased. When the mass fraction of PEO was 24%, the porosity and maximum value of ionic conductivity of the composite polymer membrane were 54% and 2.41 mS/cm, respectively. The electrochemical stability window of Li/gel composite polymer electrolyte/stainless steel batteries was close to 5.3 V (vs. Li + /Li), and the battery of Li/gel composite polymer electrolyte/LiFePO 4 showed good cycling performance and the discharge capacity of the battery were between 169.8 and 155 mAh/g. Meanwhile, the Coulombic efficiency of the battery maintained over 95% during the 80 cycles.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Study of poly(organic palygorskite‐methyl methacrylate)/poly(ethylene oxide) blended gel polymer electrolyte for lithium‐ion batteries

Zhang

Wang

Chen

et al. 2020

J of Applied Polymer Sci

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“…The C6P (1,1,3,3,5,5-meso-hexaphenyl-2,2,4,4,6,6-meso-hexamethylcalix [6]pyrrole) anion receptor was in-house synthesized in two-step synthesis proposed by Eichen et al [190] which was improved in a manner described in [52]. It was later carefully vacuum dried (p = 10 −5 -10 −6 Tr) for at least 60 h at temperature gradually increasing from ambient to about 120 • C. Modified inorganic Al 2 O 3 based fillers with grafted acidic and basic surface groups (Sigma-Aldrich St. Louis, MI, USA, reagent grade) were pre-prepared according to [191] and dried in a vacuum oven (p = 10 −5 -10 −6 Tr, t = 200 • C). Polyether polymeric hosts PEGDME (poly(ethylene glycol) dimethylether) M w = 500 g/mol and PEO (poly(ethylene oxide)) M w = 4 × 106 g/mol Aldrich (St. Louis, MS United States, reagent grade) were dried similarly but with temperature not exceeding 60 • C. Salts such as LiBF 4 LiI and LiClO 4 (Aldrich St. Louis, MI, USA, reagent grade, 99.99%) were dried in a manner identical to the receptor.…”

Section: Methodsmentioning

confidence: 99%

Transference Number Determination in Poor-Dissociated Low Dielectric Constant Lithium and Protonic Electrolytes

et al. 2021

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Whereas the major potential of the development of lithium-based cells is commonly attributed to the use of solid polymer electrolytes (SPE) to replace liquid ones, the possibilities of the improvement of the applicability of the fuel cell is often attributed to the novel electrolytic materials belonging to various structural families. In both cases, the transport properties of the electrolytes significantly affect the operational parameters of the galvanic and fuel cells incorporating them. Amongst them, the transference number (TN) of the electrochemically active species (usually cations) is, on the one hand, one of the most significant descriptors of the resulting cell operational efficiency while on the other, despite many years of investigation, it remains the worst definable and determinable material parameter. The paper delivers not only an extensive review of the development of the TN determination methodology but as well tries to show the physicochemical nature of the discrepancies observed between the values determined using various approaches for the same systems of interest. The provided critical review is supported by some original experimental data gathered for composite polymeric systems incorporating both inorganic and organic dispersed phases. It as well explains the physical sense of the negative transference number values resulting from some more elaborated approaches for highly associated systems.

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“…SPEs will also become melts at high temperature, but the high viscosity of the melts does not favor penetration and wetting. [243] Importantly, the surface passivation of electrodes, that is, the formation of SEI, for cells with SPEs, has also been studied. [74,240] Secondly, integrated composite electrodes with rigid inorganic solids may lead to other issues, for example, the high rigidity will cause resistance to the volume change that results from the lithiation process, that is, it will increase the barrier for the lithiation/delithiation during charging and discharging.…”

Section: Interfacial Propertiesmentioning

confidence: 99%

“…[242] Moreover, they also found that the addition of nanoparticles would suppress the growth of interfacial resistance when the lithium salt loading was higher than 1 mol kg À1 or lower than 10 À3 mol kg À1 . [243] Importantly, the surface passivation of electrodes, that is, the formation of SEI, for cells with SPEs, has also been studied. [244,245] Specifically, Xu et al found that the SEI formed between a SPE (PEO + LiTFSI) and electrodes is mainly composed by LiOH by using X-ray photoelectron spectroscopy.…”

Section: Interfacial Propertiesmentioning

confidence: 99%

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

2014

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Increasing interest in flexible/wearable electronics, clean energy, electrical vehicles, and so forth is calling for advanced energy‐storage devices, such as high‐performance lithium‐ion batteries (LIBs), which can not only store energy efficiently and safely, but also possess additional properties, such as good mechanical properties to bear deformations or even to be used as structural components. These expectations first indicate the directions, but also raise new challenges for the advancement of energy materials. As one of the critical components in LIBs, the electrolyte connecting the two electrodes is vital for achieving the desired performances in batteries. In this Review, the developments of various liquid electrolytes (organic, ionic liquid, and aqueous electrolytes), solid electrolytes (solid polymer and inorganic solid), as well as gel electrolytes is briefly summarized and discussed. For each type of electrolyte, the challenging issues and possible solutions are discussed. In particular, safety, ionic conductivity, and contact/interface issues are emphasized. Finally, from a composite point of view, strategies for the development of high‐performance electrolytes with all‐round properties are proposed.

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The effect of type of the inorganic filler and dopant salt concentration on the PEO–LiClO4 based composite electrolyte–lithium electrode interfacial resistivity

Cited by 20 publications

References 16 publications

Study of poly(organic palygorskite‐methyl methacrylate)/poly(ethylene oxide) blended gel polymer electrolyte for lithium‐ion batteries

Study of poly(organic palygorskite‐methyl methacrylate)/poly(ethylene oxide) blended gel polymer electrolyte for lithium‐ion batteries

Transference Number Determination in Poor-Dissociated Low Dielectric Constant Lithium and Protonic Electrolytes

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

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