BUSINESS AREA

BUILDING A BETTER FUTURE THROUGH CONVERGENCE

Secondary Battery Materials

Secondary Battery Materials Business

We will continuously promote strengthening of our next-generation large-capacity EV electrolyte business.

Soulbrain is stably supplying small-capacity (secondary) battery materials, and we are increasing our competitiveness in the secondary battery market through development of next generation large-capacity battery materials. We are manufacturing electrolyte and lead tabs, key materials in secondary batteries, and supplying materials both domestically and abroad, and we are also focusing on the development of medium-capacity (next generation) secondary battery materials.

Secondary Battery Materials Business
Electrolyte

Electrolyte, one of the key components of lithium ion secondary batteries, is a medium enabling the movement of lithium ions between the anode and cathode. Non-aqueous electrolytes are composed of organic solvents with high electric constants and low viscosity, lithium salts, and additives. Based on refined technology for differentiated solvents and additives, Soulbrain has developed a manufacturing process maintaining low moisture and HF content, and we are manufacturing high quality electrolytes. In addition, we are developing and supplying a variety of functional electrolytes to improve the lifetime and performance of secondary batteries, such as electrolytes with gas generation controlling and overcharge prevention capabilities.

Major products
  • PuriEL (Lithium Ion Battery Electrolyte)
Product Examples

  • Notebook PC

  • Mobile Phone

  • Power Tool

  • E-Bike

  • Electric Vehicle

  • Energy Storage System

Product Manager

Secondary Battery Materials Business
Lead Tab

The lead tab for use in lithium secondary batteries is a material that connects the positive and negative electrodes in the pouch cell, and is made of materials such as aluminum, nickel, and copper. The Lead Tab Division at Soulbrain SLD, a subsidiary of Soulbrain Co., Ltd., is producing high-quality products that completely blocks electrolyte leakage through employment of differentiated metal plating and specialized surface treatment technology. In addition, we are equipped with automated production facilities and production lines that can manufacture a variety of different product specifications to meet customer needs.

Major products
  • Secondary battery electrodes for PHEV
  • Secondary battery electrodes for EV
  • Secondary battery electrodes for ESS
Product Examples

  • Electric Vehicle

  • Energy Storage System

Product Manager