维科技术：高安全聚阴离子钠电池上取得重大技术创新

Core Viewpoint - Weike Technology is one of the earliest companies in China to industrialize sodium-ion battery technology, having established the country's first GW-level production line with an annual capacity of 2GWh [1] Group 1: Technological Innovations - Significant technological innovations have been achieved in high-safety polyacrylonitrile sodium batteries, including high-temperature resistance technology that enhances cycle life and capacity retention at 60°C [1] - Low-temperature charging technology ensures stable charge and discharge at -20°C [1] - High-rate wide-temperature technology enables performance in extreme temperatures from -40°C to 80°C, supporting 10C fast charging and discharging [1] - Ultra-safe technology has successfully developed a needle-puncture smoke-free cell [1] - The polyacrylonitrile sodium battery can achieve a cycle life exceeding 8000 times, with a capacity retention rate of 90% even in severe cold at -40°C [1] Group 2: Application and Market Deployment - The company's products have been widely applied in several landmark demonstration projects, including a 100MW/200MWh energy storage station by Guangfa, a 2.5MW/10MWh energy storage station in Hohhot, and a 30MW auxiliary frequency regulation storage by China Resources Power [1] - The technology's reliability and large-scale delivery capability have been validated in various applications, including backup power for data centers, communication base stations, and starting power for commercial vehicles [1]