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Secondary Battery
A secondary battery is a battery composed of one or more electrochemical cells capable of charging and discharging. A secondary battery is a much lower total cost and environmental impact, and it may be possible to charge several times that strength before replacing. Some secondary cell types are disposable, same size and type of voltage available and switched into may be used.

Cost composition within material cost
and contribution of profit by material

  • Data : Meritz Securities Research Center

  • Data : Shinyoung Securities Research Center

  • Data : Korea Investment & Securities Research Center
Conductive Material Market Size Compared to 2017, it will grow more than
3,000 times in 2025
Secondary battery configuration Configuration
The conductive material refers to a material that is mixed with an active material (anode and cathode) to help the flow of electrons.

  • Battery Configuration

  • Battery Configuration 4 components of a lithium-ion battery

  • Electrode Configuration
Graphene effect as a conductive material Graphene Effect
  • Changes in conductive materials for increasing energy density
    Carbon Black → CNT → Graphene Conductive materials are materials for improving the conductivity of lithium oxide and improving the performance of lithium secondary batteries Currently, carbon black is mainly used as a conductive material Graphene should be replaced to improve the charge/discharge life of energy density Domestic battery manufacturers use CNTs only for some IT products In the future, the capacity should be doubled or developed with graphene when using a 5G network
    Use Graphene Use fewer conductive materials than conventional conductive
    Use more active substances Increase in charging an amount

  • Lithium-ion battery companies target electric vehicles

    Increase more active material to increase travel distance once charged

    If a lot of active substances on the anode are inserted, it gets clogged and you have to put a conductive material

    Graphene allows only 20% of conventional conductive materials

     5 times more energy density than conventional conductive materials Conductivity is more than 10% higher than conventional conductive materials Reduce charging time Lithium-ion battery companies target electric vehicles
Cell pouch film for Secondary Battery
The demand for cell pouch film is also increasing due to the rapid growth of lithium-ion batteries, a major material in the next-generation fourth industry.
A cell pouch film for secondary batteries refers to a wrapper that packages secondary batteries, such as lithium-ion batteries. It can be applied in various fields such as electric vehicles and secondary batteries.

  • Cell pouch film

  • Lithium-ion battery

  • Electric Car
Current Structure and Graphene Film Structure
  • Current Structure
    Key Issues about Current Structure

    Low physical strength as a case

    Low breaking strength due to torsion

    Low penetration capability during penetration experiments

    Deformation of Cell Pouch Film by Time Change

    Creak of edges and corners generated during forming
  • Graphene FILM STRUCTURE
    Graphene FILM Structure Advantages/Tasks

    Changed 4 times the base process adhesive layer to the graphene film

    Application of properties such as strength(steel X 200 times), thermal conductivity(more than diamond X 2 times), and elasticity of graphene (not losing electrical properties even if bent)

    Deformation of Cell Pouch Film by Time Change

    Improvements such as low physical strength, fracture strength, low penetration capability, deformation, and creak are expected.