|Author||Muniyandi, N. ♦ Kalaiselvi, N. ♦ Periasamy, P. ♦ Thirunakaran, R. ♦ Rameshbabu, B. ♦ Gopukumar, S. ♦ Renganathan, N. G. ♦ Premkumar, T. ♦ Raghavan, M.|
|Source||CSIR-Central Electrochemical Research Institute|
|Subject Domain (in DDC)||Technology ♦ Engineering & allied operations ♦ Applied physics|
|Subject Keyword||Electrochemical Power Sources|
|Abstract||An attempt was made to synthesise PVdF-based polymer electrolytes containing 1:1 EC:PC plasticiser in various salts such as LiAsF6, LiPF6 and LiBF4 at different rations using PVdF as homopolymer. Though having a high ionic conductivity, certain films were found to be fragile, an indication of poor mechanical strength. Therefore, PVdF-PVC blend polymers were prepared using different rations of PVdF-PVC as well as with differents amount of plasticiser mixture. Film charecterisation was attempted using XRD, DSC, impedance and conductivity measurements. A particular combination of PVdF-PVC in the ratio 25:5 was observed to have high ionic conductivity and good mechanical strength. The electrochemical stability and the stability of lithium-polymer interface of the prepared polymer electrodes were checked in terms of charge-discharge and impedance studies. Effect of storage time and cyclability are discussed.|
|Education Level||UG and PG|
|Learning Resource Type||Article|
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