Electrolytes for solid-state batteries: glass transition temperature of polyether networks with and without alkali metal salts

1989 ◽  
Vol 21 (3) ◽  
pp. 347-351 ◽  
Author(s):  
Jean François Le Nest ◽  
Alessandro Gandini
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Solid State ◽  
Alkali Metal ◽  
Metal Salts ◽  
Alkali Metal Salts ◽  
Solid State Batteries

Thermal and Electrical Properties of Li20-V205-TeO2 Glassy System

1998 ◽  
Vol 548 ◽  
Author(s):  
E. Sanchez ◽  
C. A. Angell
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Solid State ◽  
Alkali Concentration ◽  
Oxide Glasses ◽  
Glassy System ◽  
Structural Correlation ◽  
Solid State Batteries ◽  
Thermal And Electrical Properties

ABSTRACTOxide glasses had receive a great deal of attention on the last couple of years because of their potentially high cationic transport. Interesting features have been found on Li20-V205-TeO2 glassy system. Such materials were prepared under open air at 800°C and traditional quenching. Glass formation was been found up to 45% alkali concentration on the V205-TeO2 binary system. Upon addition of Li20 the glass transition temperature lowered systematically up to values near 175°C. Structural correlation between glass transition and structure are made. Those materials show high promise as electrolytes for solid-state batteries applications.

Solid State Packing and Photoreactivity of Alkali Metal Salts oftrans,trans-Muconate

2015 ◽  
Vol 15 (11) ◽  
pp. 5555-5559 ◽  
Author(s):  
Goutam Kumar Kole ◽  
Anjana Chanthapally ◽  
Geok Kheng Tan ◽  
Jagadese J. Vittal
Keyword(s):  
Solid State ◽  
Alkali Metal ◽  
Metal Salts ◽  
Alkali Metal Salts

Alkali metal salts of formazanate ligands: diverse coordination modes as a result of the nitrogen-rich [NNCNN] ligand backbone

2014 ◽  
Vol 43 (48) ◽  
pp. 18035-18041 ◽  
Author(s):  
Raquel Travieso-Puente ◽  
Mu-Chieh Chang ◽  
Edwin Otten
Keyword(s):  
Solid State ◽  
Alkali Metal ◽  
Structural Diversity ◽  
Metal Salts ◽  
Alkali Metal Salts ◽  
Coordination Modes

Alkali-metal salts of formazanates are synthesized and their structures in the solid state and in solution are determined. Due to the nitrogen-rich [NNCNN] ligand backbone, complexes with large structural diversity are obtained.

Equilibrium and transport properties of Ca(NO3)2 + (Li,K)NO3 hydrate melts: Confirmation of a mixed-alkali effect

1981 ◽  
Vol 34 (9) ◽  
pp. 1853 ◽  
Author(s):  
AJ Easteal
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Alkali Metal ◽  
Water Content ◽  
Metal Nitrate ◽  
Mixed Alkali ◽  
Metal Nitrates ◽  
Mixed Alkali Effect ◽  
Alkali Metal Nitrate

Glass-transition temperature, density, electrical conductivity and viscosity have been determined as a function of the relative proportions of the two alkali metal nitrates in the hydrate melts �������������� 0.55[Ca(NO3)2,RH2O]+0.45[XLiNO3+(1-X)KNO3] where X is the mole fraction of LiNO3 relative to total alkali metal nitrate, with mole ratios (R) of water to Ca(NO3)2 of 4.090 and 6.545, at 298.15 K. For both series of melts, molar volume varies linearly with X, i.e. is an additive function of composition. Glass-transition temperature and molar conductivity show negative deviations from additivity, the magnitude of the deviations decreasing with increased water content. Fluidity isotherms show much smaller negative deviations from additivity and the magnitude of the deviations is approximately independent of water content. ��� By analogy with the properties of network oxide melts and glasses, the composition variation of the properties investigated for the hydrate melts is interpreted as being indicative of a significant mixed-alkali effect qualitatively similar to the effect which occurs in network oxide media. The hydrate melts are closely similar in their behaviour to fused anhydrous (Na,Tl)NO3 mixtures, and it is suggested that the observed trends in the properties of the hydrate melts have a similar origin to that which was postulated for the anhydrous melts.

Synthesis and Characterization of Novel Polyfluorene Derivatives

2013 ◽  
Vol 815 ◽  
pp. 443-447
Author(s):  
Li Di Zhou ◽  
Xiao Dan Hu ◽  
Shao Hong Wang ◽  
Zhao Xia Hou ◽  
Mei Han Wang
Keyword(s):  
Glass Transition ◽  
Thermal Properties ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Solid State ◽  
Coupling Reaction ◽  
Synthesis And Characterization ◽  
Sonogashira Coupling ◽  
Sonogashira Coupling Reaction

A novel series of copolymers containing fluorene units are synthesized by Sonogashira coupling reaction in mild condition. Benzene, naphthalene and anthracene are co-polymerized with ethynylfluorene, respectively. The structures are confirmed by NMR, Mass, Elemental analysis and GPC. The polymers have good thermal properties with glass-transition temperature of 90-155°C(Tg), and they have bandgaps from 2.21-2.77 eV. The results of photoluminescence in solid state show that introduction of huge chromophore could effectively suppress the formation of aggregates and excimers which typically cause red-shifted or new emission.

Sign in / Sign up

Export Citation Format

Share Document