硫化锂为固态电池电解质主流量产趋势，瓶片宣布联合减产后价格有所上扬 | 投研报告

Group 1 - The core viewpoint is that the solid-state battery industrialization process is accelerating, with lithium sulfide becoming the mainstream electrolyte for mass production [2][3] - Major companies, such as SAIC Motor, announced advancements in solid-state batteries, with SAIC's solid-state batteries expected to be installed in vehicles by 2027 [2][3] - Guoxuan High-Tech's first all-solid-state experimental line has a designed capacity of 0.2 GWh and achieved a 90% yield rate through advanced coating technologies [2][3] Group 2 - The ionic conductivity of sulfide electrolytes has significantly improved by 60%, enhancing air stability and achieving breakthroughs in the capacity of anode and cathode materials [2] - Companies that have prioritized lithium sulfide production are expected to benefit from the growing demand, with Guanghua Technology's current production capacity at 300 tons per year, which can be expanded to 3,000 tons per year based on market needs [2] - The polyester bottle chip industry is undergoing joint production, with recent price increases noted, as factories announced nearly 20% production cuts [3] Group 3 - INEOS and Westlake Chemical are closing some chemical production capacities in Europe, including the closure of Westlake's bisphenol A and liquid epoxy resin facilities in the Netherlands [3] - Recommended stocks include leading chemical companies such as Wanhua Chemical, Hualu Hengsheng, and Hengli Petrochemical, among others [4][5] - Beneficiary stocks in various sectors include Guanghua Technology in the new materials sector and several companies in the chemical and agricultural sectors [4][5]