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Topsound develops ultrasonic testing and monitoring technology for lithium-ion batteries.
Founded in 2022 and based in Wuxi, China, Topsound develops ultrasonic analysis technology for batteries. Its testing and monitoring products support battery research and development, quality testing, and safety management for electric vehicles, portable devices, and energy storage systems. The company has worked with more than 60 partners and clients, including BYD, Huawei, and Ningde Times. In September 2025, Topsound closed a Series A funding round with new investor Zhonghao Share.
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