SK On’s R&D Division Head Park Gi-soo announced that the company has successfully developed a 46-pole (46mm diameter) battery and is now focusing on accelerating its mass production.
During a press conference on March 5th at “InterBattery 2025,” the largest battery industry exhibition in South Korea, held at COEX in Gangnam, Seoul, Park shared insights into the company’s recent advancements. He explained that while cylindrical batteries are a market standard, SK On has developed several variations in height to create unique products.
Park also discussed the company’s progress with square batteries. Although SK On started development later than some competitors, Park confirmed that the process has now been completed, and the company is concentrating on securing customer orders.
Additionally, Park highlighted SK On’s ongoing collaboration with SK Enmove to develop immersion cooling technology for batteries. This technology, aimed for use in both Energy Storage Systems (ESS) and electric vehicles, is expected to be ready within two years.
Park further explained that the application of immersion cooling technology in electric vehicles could help manage battery thermal runaway. For manufacturers of completed vehicles, this technology might replace several existing components designed to prevent thermal runaway, potentially keeping the final product price similar to current models.
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