Vol 20, No 3 (2016) > Material and Metalurgical Engineering >

Thermal and -γ –Ray Irradiation Effects on the Ionic Conductivity of (LiCl)x(Montmorillonite)1-x

Safei Purnama 1 , Aziz Khan Jahja 1 , Takeshi Sakuma 2


  1. Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency, Puspiptek - Serpong, Tangerang 15314, Indonesia
  2. Institute of Applied Beam Science, Ibaraki University, Mito 310 -8512, Japan


Abstract: Compositesof montmorillonite (MMT) - lithium salts have been prepared using a simple process of powders mixing followed by heating. The powders resulting from this method are expected to beionic conductors with a high ionic conductivity characteristics. This characteristics is also further improved by employing gamma-ray irradiation technique at specified irradiation doses. The best results were obtained for the (LiCl)0.5(MMT)0.5 composite with a room temperature ionic conductivity of 2.192 mS/cm, which then increases to ~5 mS/cm after gamma irradiation at a dose of 400 kGy. This value is equivalent to the value of the ionic conductivity of current commercial rechargeable lithium battery, which is ~10 mS/cm. However the commercial battery system is still employing an unsafe organic electrolyte. By employing this lightweight,inexpensive and high-temperature resistant ceramic montmorillonite, the final result of this Research and Development workt is expected to provide an alternative solid electrolyte system for rechargeable battery which is safer and more inexpensive especially for secondary battery technology development in Indonesia.
Keywords: rechargeable battery, montmorillonite, lithium salt, ionic conductivity, -ray irradiation
Published at: Vol 20, No 3 (2016) pages: 153-159

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