电力设备行业：固态电池行业催化频发，宁德全固态电池20Ah样品进入试制阶段

Investment Rating - The report maintains an "Overweight" rating for the solid-state battery industry [1]. Core Insights - The solid-state battery industry is experiencing significant advancements, with companies like CATL entering the trial production phase for their 20Ah solid-state battery samples. This technology is expected to enhance the lifespan of lithium batteries [1][20]. - The report highlights the increasing investments in solid-state battery technology, with CATL expanding its R&D team to over 1,000 personnel and focusing on sulfide-based solutions [20][22]. - The report anticipates a substantial improvement in the supply-demand dynamics for the lithium battery sector in the coming years, driven by robust downstream orders and advancements in battery technology [20]. Summary by Sections Lithium Battery - The report notes that the CATL solid-state battery has achieved a specific energy density of 500 Wh/kg, which is over 40% higher than current batteries, although charging speed and cycle life are still under development [20][22]. - The report tracks the performance of key companies in the battery sector, with notable increases in stock prices for companies like Nord (up 26.99%) and Jiayuan Technology (up 26.94%) due to strong demand and positive market sentiment [20][21]. Energy Storage - The report indicates that the energy storage market is expected to see a turning point in supply and demand by 2025, with a significant increase in quarterly performance anticipated [1]. Electric Grid Equipment - The report mentions that the electric grid sector remains strong, with companies like Samsung Medical winning significant contracts, indicating a robust market outlook [1]. Photovoltaic Sector - The photovoltaic industry is also highlighted, with ongoing projects and improvements in operational performance, suggesting a positive trend for the sector [1]. Wind Power Sector - The report discusses advancements in offshore wind projects, with significant contracts being signed and expectations for increased delivery volumes in the coming years [1].