Polymer electrolytes preparation

The dendritic growth of lithium was suppressed on a lithium electrode surface modified by an ultrathin solid polymer electrolyte prepared from 1,1—difluoro-ethane by plasma polymerization [114]. 

Ion exchangers are polymer electrolytes prepared a priori as insoluble solids (salts, acids, bases hydrated, possibly gel-Uke). Their polymer backbone is three-dimensional. Many are polyvinyl compounds (substituted polyethylenes) having the general formula [-CH2-CXH-] , where different substituents X lead to rather different products ... 

Figure 7 Temperature dependence of ionic conductivity for lithium borate polymer electrolytes prepared via polymer reactions.

Kim, D.W., Park, J.K., and Rhee. H.W. 1996. Conductivity and thermal studies of solid polymer electrolytes prepared by blending poly(ethylene oxide), poly(oligo[oxyethylene] oxysebacoyl) and lithium perchlorate. Solid State Ionics 83, 49-56. 

Noda A. Watanabe, M., Highly conductive polymer electrolytes prepared by in situ polymerization of vinyl monomers in room temperature molten salts, Electrochim. Acta 2000, 45, 1265-1270. 

Li, J., and Khan, I. M., Highly conductive solid polymer electrolytes prepared by blending high molecular weight poly(ethylene oxide), poly(2 or 4-vinylpyridine) and lithium perchlorate. Macromolecules, 26, 4544-4550 (1993). 

Akhtar et al. [295] have investigated solid-state electrochromatic devices fabricated from polyaniline and solid polymer electrolytes, prepared by mixing protonic acids or alkali metal salts with either PEO or poly(ethyleneimine). The device switches rapidly from colourless to green between — 3 to -F 3-V and appears to be stable after several thousand switching cycles. 

Savinell R, Litt M (2000) Proton conducting polymer electrolyte prepared by direct acid casting. US Patent 6,099,988... 

Kim, D.W. and Sun, Y.K. (2001) Electrochemical characterization of gel polymer electrolytes prepared with porous membranes. J. Power Sources. 

The electrical conductivity of the salt-in-polymer-type polymer electrolyte prepared by dissolving an alkaline salt such as lithium trifluoromethanesulfonic acid lithium into polymethoxy ethyleneglycol methacrylate. The electrical conductivity of the polymerized salt-in-polymer-type polymer electrolyte is a function of the combination of temperature and salt. The Arrhenius plot becomes linear. 

Lee KM, Hsu CY, Chiu WH, Tsui MC, Tung YL, Tsai SY, Ho KC (2009) Dye-sensitized solar cells with a micro-porous Ti02 electrode and gel polymer electrolytes prepared by in situ cross-link reaction. Sol Energy Mater Sol Cells 93(ll) 2003-2007... 

Paulsdorf, J., Buijanadze, M., Hagelschur, K., Wiemhofer, H.D. (2004) Ionic conductivity in polyphosphazene polymer electrolytes prepared by the living cationic polymerization. Solid State Ionics, 169, 25-33. 

A gel polymer electrolyte prepared using P(AN-GMA [glycidyl methacrylate]) as the matrix and cross-linking with a-amino polypropylene oxide has an ionic conductivity of 8.23 x 10 S/cm at 25°C and good mechanical performance. 

Kim, J.K., Ahn, J.H., Jacobsson, P. 2014. Influence of temperature on ionic liquid-based gel polymer electrolyte prepared by electrospun fibrous membrane. Electrochim. Acta 116 321-325. 

This effect can be better observed through the ratio of polyiodides and E (I /E value), calculated from the intensities of the peaks in the Raman spectra. These values were calculated for the polymer electrolytes prepared with different GBL concentrations, as a function of salt concentration, as presented in Fig. 10.10. The Im/Is ratio increases with the addition of salt, and GBL, revealing an increased contribution of electronic conductive pathways for electrolytes with higher GLB and Lil concentrations. This could be a consequence of an increase in ionic mobility provided by the conduction in the less viscous, liquid GBL medium. This could lead to a faster diffusion dynamics of the iodide/iodine species, provided by the presence of more GBL molecules, which can facilitate the collision of these species to form polyiodides. Considering the value of the conductivity reached in the present work ( 10 S cm ) it is possible to infer that in the P(EO-EM)/GBL/LiI/l2 system, the electronic transport contribution is small, but still significant. 

Thermomechanical analysis (a) (compression mode) for electrolytes based on P(EO-EPI), GBL and Lil/12 (dotted line) without clay and (black line) with 5 wt% of MMT clay and ionic conductivity (b) as a function of clay content. The inset shows a photograph of spherically shaped samples of the polymer electrolyte prepared with (CPE) and without the clay (PE), after some period of time at ambient conditions. 

STEPHAN, A.M., YURiA, s., louic conductivity and diffusion coefficient studies of PVdF-HFP polymer electrolytes prepared using phase inversion technique. Solid State Ionics, 2002,148(324), 475-81. 

Ogumi Z, Uchimoto Y, Takehara Z, Kamanori Y (1988) Thin all-solid-state lithium batteries utilizing solid polymer electrolyte prepared by plasma polymerization. J Electrochtan Soc 135 2649-2650... 

Jeong SS, Lim Y, Choi YJ, Cho GB, Kim KW, Ahn HJ, Cho KK (2007) Electrochemical properties of lithiiun sulfur cells using PEG polymer electrolytes prepared under three different mixing conditions. J Power Sourc 174 745-750... 

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