All Solid-State Li/Li[sub x]MnO[sub 2] Polymer Battery Using Ceramic Modified Polymer Electrolytes

Wang, Congxiao; Xia, Yongyao; Koumoto, Kenichi; Sakai, Tetsuo

doi:10.1149/1.1486239

Cited by 25 publications

(15 citation statements)

References 19 publications

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“…Polymer electrolytes have received considerable attention because of their potential applications in solid-state batteries, chemical sensors and electrochemical devices (Gray 1997;Sanchez et al 1998;Wang et al 2002). These polymer electrolytes have to satisfy several requirements, including high ionic conductivity, good mechanical properties and excellent electrochemical stability.…”

Section: Introductionmentioning

confidence: 99%

AC impedance and dielectric spectroscopic studies of Mg2 + ion conducting PVA–PEG blended polymer electrolytes

Polu

Kumar

2011

Bull Mater Sci

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Polyvinyl alcohol (PVA)-polyethylene glycol (PEG) based solid polymer blend electrolytes with magnesium nitrate have been prepared by the solution cast technique. Impedance spectroscopic technique has been used, to characterize these polymer electrolytes. Complex impedance analysis was used to calculate bulk resistance of the polymer electrolytes. The a.c.-impedance data reveal that the ionic conductivity of PVA-PEG-Mg(NO 3) 2 system is changed with the concentration of magnesium nitrate, maximum conductivity of 9•63 × 10 −5 S/cm at room temperature was observed for the system of PVA-PEG-Mg(NO 3) 2 (35-35-30). However, ionic conductivity of the above system increased with the increase of temperature, and the highest conductivity of 1•71 × 10 −3 S/cm was observed at 100 • C. The effect of ionic conductivity of polymer blend electrolytes was measured by varying the temperature ranging from 303 to 373 K. The variation of imaginary and real parts of dielectric constant with frequency was studied.

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Section: Introductionmentioning

confidence: 99%

AC impedance and dielectric spectroscopic studies of Mg2 + ion conducting PVA–PEG blended polymer electrolytes

Polu

Kumar

2011

Bull Mater Sci

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“…Polymer electrolytes have received much attention due to their potential applications in rechargeable batteries and other electrochemical devices [1][2][3][4][5][6][7]. Most research activities on polymer electrolytes have been concentrated on PEO-based electrolyte systems during the last few decades following the initial discovery of Wright [8] that PEO formed crystalline complexes with alkali metal salts.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of lithium and sodium salts in PAN-based ion conducting polymer electrolytes

Osman

Isa

Ahmad

et al. 2010

Ionics

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The conducting polymer electrolyte films consisting of polyacrylonitrile (PAN) as the host polymer, lithium triflate (LiCF 3 SO 3 ) and sodium triflate (NaCF 3 SO 3 ) as inorganic salts were prepared by the solution-cast technique. The pure PAN film was prepared as a reference. The ionic conductivity for the films is characterized using impedance spectroscopy. The room temperature conductivity for the PAN+26 wt.% LiCF 3 SO 3 film and the PAN+24 wt.% NaCF 3 SO 3 film is 3.04×10 −4 S cm −1 and 7.13×10 −4 S cm −1 , respectively. XRD studies show that the complexation that has occurred in the PAN containing salt films and complexes formed are amorphous. The FTIR spectra results confirmed the complexation has taken place between the salt and the polymer. These results correspond with surface morphology images obtained from SEM analysis. The conductivitytemperature dependence of the highest conducting film from PAN + LiCF 3 SO 3 and PAN + NaCF 3 SO 3 systems follows Arrhenius equation in the temperature range of 303 to 353 K. The PAN containing 24 wt.% LiCF 3 SO 3 film has a higher ionic conductivity and lower activation energy compared to the PAN containing 26 wt.% LiCF 3 SO 3 film. These results can be explained based on the Lewis acidity of the alkali ions, i.e., the interaction between Li + ion and the nitrogen atom of PAN is stronger than that of Na + ion.

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“…The stainless steel and lithium metal serve as working and reference electrodes, respectively. As shown in Figure 3d, a low current was observed until 3.5 V vs. Li/Li + for the ceramic-free membrane, which represents the oxidation process and decomposition of PEO [48]. A stable current could be extended to 4.5 V vs. Li/Li + for the ex situ membrane, implying the positive effect of nanofillers on the electrochemical stability voltage window of polymer electrolytes.…”

Section: Ionic Conductivity and Electrochemical Stability Windowmentioning

confidence: 89%

Preparation of Nanocomposite Polymer Electrolyte via In Situ Synthesis of SiO2 Nanoparticles in PEO

Tan

Wu²,

Tang³

et al. 2020

Nanomaterials

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Composite polymer electrolytes provide an emerging solution for new battery development by replacing liquid electrolytes, which are commonly complexes of polyethylene oxide (PEO) with ceramic fillers. However, the agglomeration of fillers and weak interaction restrict their conductivities. By contrast with the prevailing methods of blending preformed ceramic fillers within the polymer matrix, here we proposed an in situ synthesis method of SiO2 nanoparticles in the PEO matrix. In this case, robust chemical interactions between SiO2 nanoparticles, lithium salt and PEO chains were induced by the in situ non-hydrolytic sol gel process. The in situ synthesized nanocomposite polymer electrolyte delivered an impressive ionic conductivity of ~1.1 × 10−4 S cm−1 at 30 °C, which is two orders of magnitude higher than that of the preformed synthesized composite polymer electrolyte. In addition, an extended electrochemical window of up to 5 V vs. Li/Li+ was achieved. The Li/nanocomposite polymer electrolyte/Li symmetric cell demonstrated a stable long-term cycling performance of over 700 h at 0.01–0.1 mA cm−2 without short circuiting. The all-solid-state battery consisting of the nanocomposite polymer electrolyte, Li metal and LiFePO4 provides a discharge capacity of 123.5 mAh g−1, a Coulombic efficiency above 99% and a good capacity retention of 70% after 100 cycles.

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All Solid-State Li/Li[sub x]MnO[sub 2] Polymer Battery Using Ceramic Modified Polymer Electrolytes

Cited by 25 publications

References 19 publications

AC impedance and dielectric spectroscopic studies of Mg2 + ion conducting PVA–PEG blended polymer electrolytes

AC impedance and dielectric spectroscopic studies of Mg2 + ion conducting PVA–PEG blended polymer electrolytes

A comparative study of lithium and sodium salts in PAN-based ion conducting polymer electrolytes

Preparation of Nanocomposite Polymer Electrolyte via In Situ Synthesis of SiO2 Nanoparticles in PEO

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