scholarly journals Studying the Properties of PVdF-HFP Based Lithium Polymer Electrolytes Using non-ionic Surfactants as Plasticizers

2021 ◽  
Vol 58 (1) ◽  
pp. 237-247
Author(s):  
Leire Zubizarreta ◽  
Mayte Gil-Agusti ◽  
Juan Carlos Espinosa ◽  
Marta Garcia-Pellicer ◽  
Alfredo Quijano-Lopez
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Salt Content ◽  
Lithium Ion ◽  
Electrochemical Stability ◽  
Ionic Surfactants ◽  
Organic Carbonates ◽  
Organic Carbonate ◽  
Triton X ◽  
Different Molecular Weight

In this study, two different non-ionic surfactants have been evaluated as a plasticizer in lithium polymer electrolytes and compared with an organic carbonate-based plasticizer. To that end, non-ionic surfactants with different molecular weight and structure have been selected (Triton� X-100 and Brij�L23) and compared with organic carbonates (EC:DEC1:1) as plasticizers in lithium polymer electrolytes. The effect of the plasticizer content, salt content and surfactant characteristics on properties such as ionic conductivity, thermal stability and electrochemical stability of lithium polymer electrolytes has been studied. The results obtained show that the non-ionic surfactants studied as plasticizers (Triton� X-100 and Brij�L23) give lithium polymer electrolytes with higher thermal and electrochemical stability than organic carbonates, thus making them promising plasticizers for lithium polymer electrolytes, especially for high voltage lithium-ion batteries. Surfactant structure could influence the ionic conductivity of the polymer electrolytes, with the linear surfactants being more suitable for this application.

scholarly journals Contribution Succinonitrile additive for Performa LiTFSi Solid Polymer Electrolytes for Li-Ion Battery

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Qolby Sabrina ◽  
Titik Lestariningsih ◽  
Christin Rina Ratri ◽  
Achmad Subhan
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Room Temperature ◽  
Lithium Salt ◽  
Ionic Conduction ◽  
Lithium Ion ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Half Cell ◽  
Li Ion

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.

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

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.

Ionic conductivity and transport number of lithium ion in polymer electrolytes containing PEG–borate ester

2004 ◽  
Vol 50 (2-3) ◽  
pp. 281-284 ◽  
Author(s):  
Yuki Kato ◽  
Shoichi Yokoyama ◽  
Takeshi Yabe ◽  
Hiromasa Ikuta ◽  
Yoshiharu Uchimoto ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Transport Number ◽  
Lithium Ion ◽  
Borate Ester

scholarly journals Decoupling segmental relaxation and ionic conductivity for lithium-ion polymer electrolytes

2019 ◽  
Vol 4 (4) ◽  
pp. 779-792 ◽  
Author(s):  
Dominic Bresser ◽  
Sandrine Lyonnard ◽  
Cristina Iojoiu ◽  
Lionel Picard ◽  
Stefano Passerini
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Lithium Ion ◽  
Segmental Motion ◽  
Lithium Polymer Battery ◽  
Segmental Relaxation ◽  
Polymer Battery

This perspective reviews current strategies to decouple segmental motion and ionic conductivity for lithium polymer battery electrolytes, including an outlook for potential future improvements.

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

RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43581-43588 ◽  
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.

Preparation and Characterization of a Novel Gel Polymer Membrane Based on a Tetra-Copolymer

2011 ◽  
Vol 396-398 ◽  
pp. 1755-1759
Author(s):  
Lan Zhang ◽  
Shi Chao Zhang
Keyword(s):  
Polymer Electrolytes ◽  
Phase Inversion ◽  
Ethylene Carbonate ◽  
Lithium Ion ◽  
Electrochemical Stability ◽  
Microporous Membrane ◽  
Dsc Measurements ◽  
Phase Inversion Technique ◽  
Methoxy Polyethylene Glycol

A acrylonitrile (AN)-methyl acrylate (MMA)-methoxy polyethylene glycol(350) monoacrylate (MPGA)-lithium acrylate (LiAc) tetra-copolymer was synthesized by emulsion polymerization, and phase inversion technique was adopted to prepare the as prepared polymer based microporous membrane. The gel polymer electrolytes (GPEs) were obtained by soak the as-prepared microporous membrane into 1M LiPF6/ (EC (ethylene carbonate) + DEC (diethylene carbonate)) (1:1 vol) electrolyte. FTIR, NMR and TGA/DSC measurements are used to character the components and structure of the polymer. The GPE’s ionic conductivity exceeds 3.0×10-3S/cm at ambient temperature, and this system also shows a sufficient electrochemical stability with a decomposition voltage as much as 6.0V vs Lithium(Li)/Li+ to allow far wider operation in the rechargeable lithium-ion polymer batteries. What’s more, this membrane also shows good characters in battery’s charge-discharge cycles.

Solvent Effect on Ion Hopping of Solid Polymer Electrolyte

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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