On September 19, 2025, COSPOWERS’s Changde plant held a grand ceremony to mark the mass production of its 1.5GWh sodium-ion battery production line. With a total investment of 200 million yuan, this is the first sodium-ion battery production line in Hunan Province with mass production capabilities.

　This milestone not only signifies COSPOWERS’s successful transition from R&D and pilot testing to large-scale production in the sodium-ion battery field but also marks the official launch of the company’s large-scale operation of its sodium-ion battery business. Meanwhile, the company’s participation in the "Development of Wide-Temperature-Range High-Performance Sodium-Ion Batteries" project has been officially included in Hunan Province’s Top Ten Technological Breakthrough Projects for 2025, providing strong support for further consolidating its technological foundation and enhancing its innovation advantages. Leveraging leading sodium-ion battery technology, COSPOWERS is tailoring cost-effective and resource-efficient smart solutions for the energy storage sector, contributing to the high-quality development of the new energy industry.

　The mass production ceremony received significant attention from various levels of government and industry associations, with several key leaders attending to witness this industry milestone. Distinguished guests included Liu Zhiquan, Deputy Secretary of the Changde Economic Development Zone Party Working Committee and Director of the Management Committee; Chen Xianjun, Second-Level Researcher at the Frontier Technology Office of the Hunan Provincial Department of Science and Technology; and Zhu Aiping, Secretary-General of the Hunan Battery Association. Their presence underscored the strong support from the government and the industry for the development of the new energy sector, as well as their recognition of COSPOWERS’s innovative achievements in the sodium-ion battery field.

　The sodium-ion battery production line commissioned at COSPOWERS’s Changde plant is a modernized line integrating digitalization, intelligence, and flexibility. It focuses on the production of multi-specification cells ranging from 50Ah to 180Ah, adopting the industry-leading polyanion technology route. The line utilizes a fully digitalized management and control system for real-time data collection and dynamic analysis, relying on intelligent algorithms to autonomously optimize and precisely adjust process parameters. Notably, the production line boasts highly flexible manufacturing capabilities, enabling it to quickly respond to orders for products of varying capacity specifications and adapt nimbly to market changes. The commissioning of this intelligent production line not only significantly enhances the consistency and production efficiency of sodium-ion battery products but also lays a solid hardware foundation for the large-scale industrialization and application of sodium-ion batteries.

　In the field of sodium-ion battery technology R&D, COSPOWERS has achieved multiple key breakthroughs. Compared to traditional lithium-ion batteries, its sodium-ion battery products demonstrate significant advantages: higher energy efficiency, superior low-temperature performance, longer cycle life, enhanced safety, and broader market application prospects. As one of the first companies in China to pass sodium-ion battery evaluations, COSPOWERS has consistently emphasized industry-academia-research collaborative innovation, maintaining deep partnerships with universities such as Harbin Institute of Technology, Central South University, and Harbin Engineering University. Simultaneously, the company has actively deployed core patented technologies, including "high-power sodium-ion batteries" and "stacked sodium-ion batteries," continuously strengthening its technological barriers.

　Currently, COSPOWERS’s sodium-ion battery products have been successfully deployed in multiple projects: the company secured the top bid in an open tender for China Tower’s Gansu 100Ah sodium-ion battery project—one of the first batch of bulk procurement projects for sodium-ion battery energy storage products in the communication energy storage field in China. COSPOWERS is also closely collaborating with China Mobile and China Tower to promote pilot applications of its sodium-ion battery products in nearly 30 communication base stations across Heilongjiang, Liaoning, Jilin, and Gansu. Notable projects include the pilot deployment of sodium-ion battery commercial products at China Mobile Ningxia’s data center distributed photovoltaic project, the smart sodium-ion battery energy storage pilot project at China Tower’s Tianshui site in Gansu Province, and the sodium-ion battery energy storage pilot project at China Mobile’s Heihe site in Heilongjiang Province. To ensure product quality, the company strictly adheres to international quality management standards, and its products have passed multiple international certifications, including ISO, IEC, and UL, providing a solid quality assurance for the large-scale application of sodium-ion batteries.

　The official mass production of COSPOWERS’s sodium-ion battery production line is just the beginning of its in the sodium-ion battery industry. With the accelerated development of the global new energy industry, sodium-ion batteries are unleashing immense application potential in key areas such as communication energy storage, wind and solar energy storage integration, virtual power plants, two- and three-wheelers, and start-stop power supplies, thanks to their core advantages of controllable costs and high safety. With its profound technological and forward-looking capacity, COSPOWERS is poised to occupy a significant position in the global competition for new energy storage. In the future, as the demand for sodium-ion batteries continues to grow in China’s new energy storage market, the large-scale commercial application of sodium-ion batteries is highly anticipated. COSPOWERS has already taken the lead, laying a solid foundation for driving industry development.