• 

  High Productivity

  • We are adopting the sequential 2-axis individual elongation method that individually elongates the vertical and horizontal axis.
  • This production method enables the high-speed wide elongation, maximizing the available area for the separator and improving the productivity.
• 

  Satisfying the customer requirements based on technology and know-how

  • We control the porosity and air permeability based on the blending and mixing technology for the primary materials, producing the separator optimal for the customized battery design.

  ※ Porosity(%)

  It means that the entire volume of separator film is occupied by the volume fraction of micro-pore, It is one of standards to judge basic the property of the separator film. The higher porosity is thebetter ion conductance.

  ※ Air permeability(sec/100ml)

  Permeability is the amount of time used by 100ml air to get through the designated area of the separator film, It is also one of standards to judge basic the property of the separator film. The lower permeability is the better ion conductance.

  • Blending technology
  • Mixing technology
  • High-speed elongation-multiplying production technology (sequential 2-axis individual elongation method)

Improvement of battery characteristics