SK On introduces an integrated package solution that combines SK On's Cell-To-Pack (CTP) technology with SK Enmove's immersion cooling through a merger with SK Enmove.

Lee Seok-hee, president of SK On, noted on the 30th during the 'SK Innovation corporate value enhancement strategy briefing' held at the Supex Hall of the SK Serin Building in Jongno, Seoul. Earlier, SK On and SK Enmove held a board meeting that morning and approved the merger proposal.

Lee Seok-hee, president of SK On, presents on the growth story of SK On at the '2025 SK Innovation Corporate Value Enhancement Strategy Presentation' held on the 30th at the Supex Hall of the SK Seorin Building in Jongno-gu, Seoul. /Courtesy of SK Innovation

The president mentioned that SK On is securing cost competitiveness in battery production and enhancing stability by ensuring the structural stability of battery packs, implementing heat diffusion prevention solutions, and differentiating its CTP.

CTP is a technology that skips the battery module stage and directly integrates cells into packs, increasing energy density to extend driving range while also reducing manufacturing costs.

However, it can be challenging to manage heat, and shocks or external damage may affect the stability of the entire pack. SK On is expected to utilize SK Enmove's immersion cooling technology to address the shortcomings of CTP.

Immersion cooling is a method that controls the heat generated by electronic devices using non-conductive liquids such as insulating oil, and is utilized in data center servers and electric vehicle batteries.

The president stated, "The Cell-To-Pack technology, which combines SK On's batteries and SK Enmove's immersion cooling technology, is being co-developed by both companies." He added, "After the merger, we will accelerate technology development through information sharing," emphasizing, "This will be a milestone in our transition from a simple cell supplier to a customer-customized system solution provider."

In addition, he announced plans to target new markets by applying this package to energy storage systems (ESS).

The president explained, "We are currently in discussions for orders with several customers," and noted, "With production lines allocated at the U.S. factory, we expect to secure orders within the year."

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