Crystallinity and order of poly(ethylene oxide)/lithium triflate complex confined in nanoporous membranes

On the thermodynamics of solid solutions of polymer and salt

“…This fact points toward procedures of sample preparation. For example, huge changes in ionic conductivity have been reported to be caused only by varying annealing temperature of samples [5, 6].…”

Polymerized ionic liquids with guanidinium cations as host for gel polymer electrolytes in lithium metal batteries

“…Rechargeable lithium metal polymer batteries are considered to be one of the most probable next generation of power sources for portable electronic devices and electric vehicles because of their high energy density and flexible characteristics 1, 2. A great number of solid/gel polymer electrolytes have been studied over the last few decades, generally based on poly(ethylene oxide) (PEO) and its derivatives,3–7 poly(methyl methacrylate),8, 9 homopolymers and copolymers of poly(vinylidenefluoride) (PVdF)10–12 and polyacrylonitrile 13. But these polymer electrolytes still suffer from various defects such as low ionic conductivity and poor mechanical and interfacial properties.…”

The Integration of Nanoscale Techniques for an Improved Battery Technology

“…In many cases, the non-conducting phase appears to enhance conduction [117,118,126,127,131] as is observed for micro and nanoscale filler materials. Recent work has involved PEO-complex polymer electrolyte confined in the nanopores of structurally well-defined membranes having channels that are parallel to each other and are perpendicular to the surface of the membrane [94,117,[126][127][128]131]. This channel geometry is intriguing for several reasons.…”

“…Preparation of the AAO PEO complex membranes has been described previously [127]. As before, PEO with a molecular weight of 4,000,000 (Aldrich) and lithium triflate (LiSO 3 CF 3 , Aldrich) was dissolved in Optima grade acetonitrile (Fisher) at an ether oxygen to lithium ion ratio of 15:1.…”

“…An interesting area of work has investigated the use of interpenetrating networks where one phase is the ion conducting phase while the other non-conducting phase can provide mechanical reinforcement that promotes the dimensional stability of the formed polymer electrolyte composite [115][116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131]. In many cases, the non-conducting phase appears to enhance conduction [117,118,126,127,131] as is observed for micro and nanoscale filler materials. Recent work has involved PEO-complex polymer electrolyte confined in the nanopores of structurally well-defined membranes having channels that are parallel to each other and are perpendicular to the surface of the membrane [94,117,[126][127][128]131].…”