scholarly journals Structural and Ionic Conductivity Studies on Nanochitosan Incorporated Polymer Electrolytes for Rechargeable Magnesium Batteries

2012 ◽  
Vol 1 (2) ◽  
pp. 311-316 ◽  
Author(s):  
N. AMMAKUTTI @ SRIDEVI ◽  
K .KARUPPASAMY ◽  
S. BALAKUMAR ◽  
X.SAHAYA SHAJAN
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Magnesium Batteries ◽  
Rechargeable Magnesium Batteries

Novel transmetalation reaction for electrolyte synthesis for rechargeable magnesium batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (51) ◽  
pp. 26924-26927 ◽  
Author(s):  
Zhirong Zhao-Karger ◽  
Jonathan E. Mueller ◽  
Xiangyu Zhao ◽  
Olaf Fuhr ◽  
Timo Jacob ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Electrolyte Solutions ◽  
Magnesium Aluminate ◽  
Organomagnesium Compounds ◽  
Magnesium Batteries ◽  
Rechargeable Magnesium Batteries

A straightforward synthesis of electrolyte solutions comprised of binuclear magnesium aluminate complexes without the need for organomagnesium compounds is established. The phenolate based electrolyte exhibits an anodic stability of up to 3.4 V, good ionic conductivity and air-stability.

Solid Polymer Electrolytes from Crosslinked PEG and Dilithium N,N'-Bis(trifluoromethanesulfonyl)perfluoroalkane-1,ω-disulfonamide and Lithium Bis(trifluoromethanesulfonyl)imide Salts

2008 ◽  
Vol 73 (12) ◽  
pp. 1777-1798 ◽  
Author(s):  
Olt E. Geiculescu ◽  
Rama V. Rajagopal ◽  
Emilia C. Mladin ◽  
Stephen E. Creager ◽  
Darryl D. Desmarteau
Keyword(s):  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Minimum Energy ◽  
Ionic Conductivities ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Segmental Motion ◽  
Concentrated Electrolytes ◽  
Two Factors ◽  
Poly Ethylene

The present work consists of a series of studies with regard to the structure and charge transport in solid polymer electrolytes (SPE) prepared using various new bis(trifluoromethanesulfonyl)imide (TFSI)-based dianionic dilithium salts in crosslinked low-molecular-weight poly(ethylene glycol). Some of the thermal properties (glass transition temperature, differential molar heat capacity) and ionic conductivities were determined for both diluted (EO/Li = 30:1) and concentrated (EO/Li = 10:1) SPEs. Trends in ionic conductivity of the new SPEs with respect to anion structure revealed that while for the dilute electrolytes ionic conductivity is generally rising with increased length of the perfluoroalkylene linking group in the dianions, for the concentrated electrolytes the trend is reversed with respect to dianion length. This behavior could be the result of a combination of two factors: on one hand a decrease in dianion basicity that results in diminished ion pairing and an enhancement in the number of charge carriers with increasing fluorine anion content, thereby increasing ionic conductivity while on the other hand the increasing anion size and concentration produce an increase in the friction/entanglements of the polymeric segments which lowers even more the reduced segmental motion of the crosslinked polymer and decrease the dianion contribution to the overall ionic conductivity. DFT modeling of the same TFSI-based dianionic dilithium salts reveals that the reason for the trend observed is due to the variation in ion dissociation enthalpy, derived from minimum-energy structures, with respect to perfluoroalkylene chain length.

Polyvinyl fibers as outperform candidature in the solid polymer electrolytes

2020 ◽  
pp. 152808372097062
Author(s):  
Muhammad Yameen Solangi ◽  
Umair Aftab ◽  
Muhammad Ishaque ◽  
Aqeel Bhutto ◽  
Ayman Nafady ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Weight Loss ◽  
Ionic Conductivity ◽  
Polymer Electrolytes ◽  
Vital Role ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Main Challenge ◽  
Different Temperatures ◽  
Solution Cast

Solid polymer electrolytes (SPEs) are the best choice to replace liquid electrolytes in supercapacitors, fuel cells, solar cells and batteries. The main challenge in this filed is the ionic conductivity and thermal stability of SPEs which is still not up to mark, therefore more investigations are needed to address these issues. In this study, PVA/salt based SPEs was fabricated using both solution cast and electro-spinning methods to probe the effect of different salts such as (NaCl, KCl and KI) and their concentrations on the ionic conductivity. Scanning electron microscopy (SEM) x and Fourier Transform Infra-Red (FTIR) have been employed to study the morphology as well as the different functional groups of SPEs, respectively. It was noted that small addition of NaCl, KCl and KI salts in SPEs dramatically increased the ionic conductivity to 5.95×10−6, 5.31×10−6 and 4.83×10−6 S/cm, respectively. Importantly, the SPEs obtained with NaCl via electro-spinning have higher ionic conductivity (5.95×10−6 S/cm) than their casted SPEs (1.87×10−6 S/cm). Thermal stability was also studied at two different temperatures i.e. 80 °C and 100 °C. The weight loss percentage of electrospun SPEs have zero percent weight loss than the solution based SPEs. The combined results clearly indicated that the nature of salt, concentration and fabrication process play a vital role in the ionic conductivity. Also, the NaCl salt with low molecular weight at low concentrations shows an enhanced ionic conductivity.

Highly soluble alkoxide magnesium salts for rechargeable magnesium batteries

2014 ◽  
Vol 2 (3) ◽  
pp. 581-584 ◽  
Author(s):  
Chen Liao ◽  
Bingkun Guo ◽  
De-en Jiang ◽  
Radu Custelcean ◽  
Shannon M. Mahurin ◽  
...  
Keyword(s):  
Magnesium Salts ◽  
Magnesium Batteries ◽  
Rechargeable Magnesium Batteries

A novel thiolate-based electrolyte system for rechargeable magnesium batteries

2014 ◽  
Vol 121 ◽  
pp. 258-263 ◽  
Author(s):  
Peiwen Bian ◽  
Yanna NuLi ◽  
Zainapuguli Abudoureyimu ◽  
Jun Yang ◽  
JiuLin Wang
Keyword(s):  
Electrolyte System ◽  
Magnesium Batteries ◽  
Rechargeable Magnesium Batteries

scholarly journals MgFeSiO4 as a potential cathode material for magnesium batteries: ion diffusion rates and voltage trends

2017 ◽  
Vol 5 (25) ◽  
pp. 13161-13167 ◽  
Author(s):  
Jennifer Heath ◽  
Hungru Chen ◽  
M. Saiful Islam
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Ion Diffusion ◽  
Diffusion Rates ◽  
Magnesium Batteries ◽  
Rechargeable Magnesium Batteries

Developing rechargeable magnesium batteries has become an area of growing interest as an alternative to lithium-ion batteries largely due to their potential to offer increased energy density from the divalent charge of the Mg ion.

Rechargeable magnesium batteries with polymeric gel electrolytes containing magnesium salts

2003 ◽  
Vol 48 (14-16) ◽  
pp. 2317-2322 ◽  
Author(s):  
Nobuko Yoshimoto ◽  
Shin Yakushiji ◽  
Masashi Ishikawa ◽  
Masayuki Morita
Keyword(s):  
Polymeric Gel ◽  
Gel Electrolytes ◽  
Magnesium Salts ◽  
Magnesium Batteries ◽  
Rechargeable Magnesium Batteries
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