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Jiangsu Sunpower's phase IV battery project begins operations

LMS
etaizhou.gov.cn|Updated: June 30, 2025

The 18650 lithium battery intelligent production line of Jiangsu Sunpower, located in the Taixing Huangqiao Economic Development Zone, Taixing city, Jiangsu province, was recently put into operation. It is able to produce 300 batteries every minute.

This marked the company's phase IV battery project has all been put into operation.

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The production workshop of Jiangsu Sunpower's Phase IV project. [Photo/people.com.cn]

The phase IV battery project includes a 21700 production line and a 18650 production line. The 21700 production line was put into operation in early April.

The company focuses on the research and manufacturing of battery series such as ternary lithium batteries, sodium ion batteries, and iron lithium batteries, covering models such as 18650, 21700, and 26700.

Its products are widely used in fields such as electric tools, garden tools, cleaning tools, small appliances, robots, and low-speed vehicles.

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The lithium battery intelligent production line. [Photo/people.com.cn]

In recent years, the rapid development of emerging industries has given rise to more real-world applications. The company is striving to seize development opportunities by maintaining high research and development investment, with direct R&D investment accounting for at least 4 percent of annual sales.

As of April, the company has applied for over 110 patents, of which nearly 100 have been authorized, covering fields such as battery materials, structural design, and production processes.

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