Effectively improved ionic conductivity of montmorillonite clay nanoplatelets incorporated nanocomposite solid polymer electrolytes for lithium ion-conducting devices

Solid polymer electrolyte (SPE) appropriate to solve packaging leakage and expansion volume in lithium-ion battery systems. Evaluation of electrochemical performance of SPE consisted of mixture lithium salt, solid plasticizer, and polymer precursor with different ratio. Impedance spectroscopy was used to investigate ionic conduction and dielectric response lithium bis(trifluoromethane)sulfony imide (LiTFSI) salt, and additive succinonitrile (SCN) plasticizer. The result showing enhanced high ionic conductivity. In half-cell configurations, wide electrochemical stability window of the SPE has been tested. Have stability window at room temperature, indicating great potential of SPE for application in lithium ion batteries. Additive SCN contribute to forming pores that make it easier for the li ion to move from the anode to the cathode and vice versa for better perform SPE. Pore of SPE has been charaterization with FE-SEM. Additive 5% w.t SCN shows the best ionic conductivity with 4.2 volt wide stability window and pretty much invisible pores.

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Salt Concentration Effect on Electrical and Dielectric Properties of Solid Polymer Electrolytes based Carboxymethyl Cellulose for Lithium-ion Batteries

Biointerface Research in Applied Chemistry ◽

10.33263/briac125.61146123 ◽

2021 ◽

Vol 12 (5) ◽

pp. 6114-6123

Keyword(s):

Dielectric Properties ◽

Ionic Conductivity ◽

Polymer Electrolytes ◽

Carboxymethyl Cellulose ◽

Electrochemical Impedance ◽

Lithium Ion ◽

Lithium Perchlorate ◽

Linear Sweep Voltammetry ◽

Solid Polymer Electrolytes ◽

Solid Polymer

Solid polymer electrolytes (SPEs) based carboxymethyl cellulose (CMC) with lithium perchlorate (LiClO4) were prepared via solution drop-cast technique. The CMC host is complexed by different concentrations of LiClO4 salt. SPEs were characterized by Electrochemical Impedance Spectroscopy (EIS) and Linear Sweep Voltammetry (LSV) in coin cells with lithium metal electrodes. EIS performed unique results based on various ionic conductivity values and dielectric properties. The higher ionic conductivity (1.32 × 10-5 S/cm) was obtained by SPEs 2 following by short-range ionic transport results based on dielectric properties depending on frequency. SPEs with LiClO4 addition are electrochemically stable over 2 V in lithium battery coin cells from LSV results.

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Towards magnesium ion conducting poly(vinylidenefluoride-hexafluoropropylene)-based solid polymer electrolytes with great prospects: Ionic conductivity and dielectric behaviours

Journal of the Taiwan Institute of Chemical Engineers ◽

10.1016/j.jtice.2012.04.004 ◽

2012 ◽

Vol 43 (5) ◽

pp. 806-812 ◽

Cited By ~ 22

Author(s):

S. Ramesh ◽

Soon-Chien Lu ◽

Ezra Morris

Keyword(s):

Ionic Conductivity ◽

Polymer Electrolytes ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Magnesium Ion ◽

Ion Conducting

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Tuning the Properties of a UV-Polymerized, Cross-Linked Solid Polymer Electrolyte for Lithium Batteries

Polymers ◽

10.3390/polym12030595 ◽

2020 ◽

Vol 12 (3) ◽

pp. 595 ◽

Cited By ~ 4

Author(s):

Preston Sutton ◽

Martino Airoldi ◽

Luca Porcarelli ◽

Jorge L. Olmedo-Martínez ◽

Clément Mugemana ◽

...

Keyword(s):

Mechanical Properties ◽

Ionic Conductivity ◽

Polymer Electrolyte ◽

Lithium Ion ◽

Ion Source ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Lithium Metal ◽

Acrylic Polymer ◽

Ion Conducting

Lithium metal anodes have been pursued for decades as a way to significantly increase the energy density of lithium-ion batteries. However, safety risks caused by flammable liquid electrolytes and short circuits due to lithium dendrite formation during cell cycling have so far prevented the use of lithium metal in commercial batteries. Solid polymer electrolytes (SPEs) offer a potential solution if their mechanical properties and ionic conductivity can be simultaneously engineered. Here, we introduce a family of SPEs that are scalable and easy to prepare with a photopolymerization process, synthesized from amphiphilic acrylic polymer conetworks based on poly(ethylene glycol), 2-hydroxy-ethylacrylate, norbornyl acrylate, and either lithium bis (trifluoromethanesulfonyl) imide (LiTFSI) or a single-ion polymethacrylate as lithium-ion source. Several conetworks were synthesized and cycled, and their ionic conductivity, mechanical properties, and lithium transference number were characterized. A single-ion-conducting polymer electrolyte shows the best compromise between the different properties and extends the calendar life of the cell.

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Supramolecular assembly-mediated lithium ion transport in nanostructured solid electrolytes

RSC Advances ◽

10.1039/c6ra07011f ◽

2016 ◽

Vol 6 (44) ◽

pp. 38223-38227 ◽

Cited By ~ 8

Author(s):

Chih-Chia Cheng ◽

Duu-Jong Lee

Keyword(s):

Ion Transport ◽

Lithium Ion Batteries ◽

Polymer Electrolytes ◽

Solid Electrolytes ◽

High Performance ◽

Supramolecular Assembly ◽

Lithium Ion ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Ion Conducting

Supramolecular solid polymer electrolytes provide mechanical integrity and well-defined ion-conducting paths for rapid ion transport that can be applied in high-performance lithium-ion batteries.

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Preparation of a ROMP-type imidazolium-functionalized norbornene ionic liquid block copolymer and the electrochemical property for lithium-ion batteries polyelectrolyte membranes

RSC Advances ◽

10.1039/c5ra04860e ◽

2015 ◽

Vol 5 (54) ◽

pp. 43581-43588 ◽

Cited By ~ 11

Author(s):

Juan Wang ◽

Xiaohui He ◽

Hongyu Zhu ◽

Defu Chen

Keyword(s):

Ionic Liquid ◽

Block Copolymer ◽

Ionic Conductivity ◽

Lithium Ion Batteries ◽

Electrochemical Property ◽

Polymer Electrolytes ◽

Lithium Ion ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Polyelectrolyte Membranes

Solid polymer electrolytes with high ionic conductivity have been prepared based on an imidazolium-functionalized norbornene ionic liquid block copolymer.

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Solvent Effect on Ion Hopping of Solid Polymer Electrolyte

Materials Science Forum ◽

10.4028/www.scientific.net/msf.544-545.1049 ◽

2007 ◽

Vol 544-545 ◽

pp. 1049-1052

Author(s):

Yu Jin Lee ◽

Yun Kyung Jo ◽

Hyun Park ◽

Ho Hwan Chun ◽

Nam Ju Jo

Keyword(s):

Ionic Conductivity ◽

Polymer Electrolytes ◽

Transport Process ◽

Lithium Ion ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Poly Vinyl Alcohol ◽

Drying Time ◽

Residual Solvent ◽

Influence Of Solvent

Solid polymer electrolytes (SPEs) based on poly (vinyl alcohol) were prepared with dimethyl sulfoxide as a solvent. Prepared SPEs form the 'fast cationic transport process' and lithium ion hopping through 'fast cationic transport process' is occurred. In this study, we observed the dependence of ionic conductivity on the drying time of solvent and there was particular relationship between ionic conductivity and the amount of residual solvent. Especially, we investigated the influence of solvent on cation mobility in the ‘fast cationic transport process’ and we found that the solvent acted as a bridge to connect neighboring ion aggregates and made the ion hopping easy.

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Tailored Solid Polymer Electrolytes by Montmorillonite with High Ionic Conductivity for Lithium-Ion Batteries

Nanoscale Research Letters ◽

10.1186/s11671-019-3210-9 ◽

2019 ◽

Vol 14 (1) ◽

Cited By ~ 1

Author(s):

Yingjian Zhao ◽

Yong Wang

Keyword(s):

Ionic Conductivity ◽

Lithium Ion Batteries ◽

Polymer Electrolytes ◽

High Performance ◽

Lithium Ion ◽

Lewis Base ◽

Solid Polymer Electrolytes ◽

Solid Polymer ◽

Lithium Ions ◽

High Discharge Capacity

AbstractPolyethylene oxide (PEO)-based solid polymer electrolytes (SPEs) have important significance for the development of next-generation rechargeable lithium-ion batteries. However, strong coordination between lithium ions and PEO chains results the ion conductivity usually lower than the expectation. In this study, sub-micron montmorillonite is incorporated into the PEO frames as Lewis base center which enables the lithium ions to escape the restraint of PEO chains. After involving montmorillonite (MMT) into the SPEs, the ionic conductivity of SPEs is 4.7 mS cm− 1 at 70 °C which shows a comparable value with that of liquid electrolyte. As coupling with LiFePO4 material, the battery delivers a high discharge capacity of 150.3 mAh g− 1 and an excellent rate performance with a capacity of 111.8 mAh g− 1 at 0.16 C and maintains 58.2 mAh g− 1 at 0.8 C. This study suggests that the customized incorporation of Lewis base materials could offer a promising solution for achieving high-performance PEO-based solid-state electrolyte.

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Holey graphene oxide as filler to improve electrochemical performance of solid polymer electrolytes

Materials Express ◽

10.1166/mex.2019.1588 ◽

2019 ◽

Vol 9 (9) ◽

pp. 1055-1061

Author(s):

Qi Wang ◽

Zhoujie Zhang ◽

Fei Shen ◽

Bin Zhao ◽

Xiaogang Han

Keyword(s):

Graphene Oxide ◽

Ionic Conductivity ◽

Polymer Electrolytes ◽

Lithium Ion ◽

Solid Polymer Electrolytes ◽

Cycle Performance ◽

Solid Polymer ◽

Electrochemical Window ◽

Poly Ethylene Oxide ◽

Poly Ethylene

Solid polymer electrolytes (SPE) have attracted wide attention of researchers because of their high safety performance and high mechanical strength. In this paper, holey graphene oxide (HGO) was added to poly(ethylene oxide) (PEO) solid polymer electrolytes with lithium bis(trifluoromethane sulfonimide) (LiTFSI) as salt to improve the ionic conductivity of solid polymer electrolytes. It was shown that the addition of holey graphene oxide improved the electrochemical window and ionic conductivity. When the amount of holey graphene oxide was 0 wt%, the ionic conductivity was 2.06 × 10–4 S/cm at 60 °C. In comparison, when the amount of holey graphene oxide was 0.2 wt%, the ionic conductivity was greatly increased to 6.05 × 10–4 S/cm. This was mainly due to the fact that addition of holey graphene oxide reduced the crystallization of polymer and promoted the migration of lithium ion. Meanwhile, the electrochemical window was expanded to 5.2 V and the cycle performance for the batteries was also improved.

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