动力锂电：钠电团体标准正式发布，产业化加速推进

Investment Rating - The report assigns an "Accumulate" rating for the sodium-ion battery industry, indicating a positive outlook for investment opportunities in this sector [4]. Core Insights - The formal implementation of the "Technical Requirements for Sodium-ion Batteries for Energy Storage" group standard marks a new phase in the standardization of sodium-ion batteries in China, suggesting that the sodium battery industry chain has completed its initial setup and is expected to enter a period of scale expansion [2]. - Sodium batteries are anticipated to become an effective complement to lithium batteries, with cost advantages becoming more apparent as lithium carbonate prices rise. The comprehensive material costs of sodium batteries are projected to be 30%-40% lower than those of lithium batteries after industrialization [4]. - The sodium battery industry is expected to experience significant scale expansion, with companies like CATL launching new sodium-ion battery brands that can compete with lithium iron phosphate batteries in terms of energy density and performance [4]. Summary by Sections Industry Overview - The sodium-ion battery industry is entering a new stage of standardization with the approval of the group standard, which will take effect on February 1, 2026. This standard covers various aspects such as terminology, testing methods, and storage [4]. Investment Recommendations - The report suggests that companies involved in the sodium-ion battery supply chain are likely to benefit first from the industry's growth. Recommended stocks include CATL, Rongbai Technology, and Zhongwei Co., with related stocks such as Dingsheng New Materials and Zhenhua New Materials also highlighted [4]. Financial Projections - Financial forecasts for key companies in the sodium battery sector indicate positive earnings growth, with CATL expected to have an EPS of 19.29 yuan per share in 2026, and Rongbai Technology projected to reach an EPS of 1.02 yuan per share in the same year [5].