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Yunsa develops and manufactures large cylindrical batteries.
Founded in 2023, Yunsa develops large cylindrical batteries and is building a 1.5GWh production line using an automated magnetic levitation assembly process. The company is based in Ningbo, China, and has more than 60 related patents. In September 2025, it closed a Series A round from Qinghai Kaixin Investment Fund Management, Ningbo Tongshang Fund, Guangzhou Langrun Equity Investment Management, and Kylinhall Partners. The funding is intended to expand battery and equipment production and advance energy storage research and applications.
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