Quantum mechanical insight into the Li‐ion conduction mechanism for solid polymer electrolytes

2020 ◽  
Vol 58 (24) ◽  
pp. 3480-3487
Author(s):  
He Zhou ◽  
Rongmei Zhao ◽  
Yao Xiao ◽  
Li Feng ◽  
Yibin Yang ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
Conduction Mechanism ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Quantum Mechanical ◽  
Ion Conduction ◽  
Li Ion ◽  
Ion Conduction Mechanism ◽  
Insight Into

scholarly journals Mechanistic insight into the improved Li ion conductivity of solid polymer electrolytes

RSC Advances ◽  
2019 ◽  
Vol 9 (66) ◽  
pp. 38646-38657 ◽  
Author(s):  
Sudeshna Patra ◽  
Pallavi Thakur ◽  
Bhaskar Soman ◽  
Anand B. Puthirath ◽  
Pulickel M. Ajayan ◽  
...  
Keyword(s):  
Polymer Electrolytes ◽  
Solid Electrolytes ◽  
Ion Conductivity ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Mechanistic Insight ◽  
Li Ion ◽  
Inert Polymer ◽  
Insight Into ◽  
Polymer Mixing

The studies shown here prove that both the Li salt and ‘inert-polymer’ mixing have paramount importance in the tunability of Li ion conductivity in solid electrolytes for batteries.

scholarly journals Electrical Conduction Mechanism in Solid Polymer Electrolytes: New Concepts to Arrhenius Equation

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Shujahadeen B. Aziz ◽  
Zul Hazrin Z. Abidin
Keyword(s):  
Dielectric Constant ◽  
Polymer Electrolytes ◽  
Conduction Mechanism ◽  
Dc Conductivity ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Arrhenius Behavior ◽  
Different Temperatures ◽  
Solution Cast ◽  
The Fourier Transform

Solid polymer electrolytes based on chitosan NaCF3SO3 have been prepared by the solution cast technique. X-ray diffraction shows that the crystalline phase of the pure chitosan membrane has been partially disrupted. The fourier transform infrared (FTIR) results reveal the complexation between the chitosan polymer and the sodium triflate (NaTf) salt. The dielectric constant and DC conductivity follow the same trend with NaTf salt concentration. The increase in dielectric constant at different temperatures indicates an increase in DC conductivity. The ion conduction mechanism follows the Arrhenius behavior. The dependence of DC conductivity on both temperature and dielectric constant (σdc(T,ε′)=σ0e−Ea/KBT) is also demonstrated.

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.

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