德赛电池：公司子公司湖南电池开展了钠离子电池产品的研发与试制，钠离子电池产品已实现兆瓦级的交付

Core Viewpoint - The company has made progress in the development and trial production of sodium-ion batteries, achieving megawatt-level deliveries [2] Group 1: Company Developments - The company's subsidiary, Hunan Battery, is actively engaged in the research and trial production of sodium-ion battery products [2] - The sodium-ion battery products have successfully reached megawatt-level delivery [2]