深度报告-20250818-国金证券-基础化工行业研究_固态电池_产业趋势逐渐清晰_电解质为核心材料_18页_2mb

投资逻辑：固态电池产业化加速与核心材料投资机会

Solid-state batteries offer significant advantages over liquid batteries in terms of safety, energy density, and integration. With the rapid adoption of solid-state batteries by automakers and battery manufacturers, the demand for upstream materials is set to grow substantially.

Solid-state batteries, utilizing solid electrolytes, provide enhanced safety due to higher thermal stability compared to liquid electrolytes (thermal decomposition temperature exceeds 500°C vs. 160°C). They also feature higher energy density, as they support high-energy cathode and anode materials with an electrochemical window above 5V. Additionally, the simplified cell structure eliminates the need for separators, reducing costs and improving integration.

Policy support is a key driver for the expansion of the solid-state battery industry. China's Ministry of Industry and Information Technology (MIIT) aims to establish 3-5 global leaders in solid-state batteries by 2027, while local governments are promoting pilot projects. According to GGII and China Institute of Industrial Research, China's solid-state battery shipments reached approximately 7 GWh in 2024, and are projected to grow to 18 GWh by 2027 and 30 GWh by 2028, with a CAGR of 44%.

The solid electrolyte is central to all-solid-state batteries, with sulfide-based routes leading in ion conductivity. Key materials like lithium sulfide are essential, and demand is expected to surge, especially for sulfide-based batteries. Companies like Ganfeng Lithium and Guanghua Science & Technology are already producing lithium sulfide, while others are in the process of scaling up production.

Investment opportunities focus on core materials and technologies for solid-state batteries. Sulfide-based batteries require high-purity fine lithium sulfide, and companies specializing in its production should be prioritized. Oxide-based electrolytes, while having lower ion conductivity, are set for faster industrial adoption due to their stability.

Risks include slower industrial adoption than expected, potential material substitution due to technological advancements, heightened competition, and price volatility in raw materials. The industry is still in its early stages, and market dynamics could shift rapidly based on technological breakthroughs and policy changes.

英文 Summary: Solid-State Battery Industrialization Progress and Investment Opportunities

Solid-state batteries provide superior advantages over liquid batteries in safety, energy density, and integration. With automakers and battery manufacturers rapidly adopting this technology, demand for upstream materials is set to grow significantly.

Solid-state batteries, using solid electrolytes, offer enhanced safety due to higher thermal stability (decomposition temperature exceeds 500°C vs. 160°C) and higher energy density by supporting high-energy cathode and anode materials with an electrochemical window above 5V. The simplified cell structure eliminates the need for separators, reducing costs and improving integration.

Policy support drives industrial expansion. China's Ministry of Industry and Information Technology targets establishing 3-5 global leaders in solid-state batteries by 2027, supported by local government initiatives. GGII and China Institute of Industrial Research data show China's shipments reached 7 GWh in 2024, projected to grow to 18 GWh by 2027 and 30 GWh by 2028, with a CAGR of 44%.

The solid electrolyte is central, with sulfide-based routes leading in ion conductivity. Key materials like lithium sulfide are essential, and demand is set to surge. Companies like Ganfeng Lithium and Guanghua Science & Technology are producing lithium sulfide, while others are scaling operations.

Investment focuses on core materials, especially high-purity lithium sulfide for sulfide-based batteries. Companies specializing in its production, as well as those in oxide-based routes, should be prioritized.

Risks include slower adoption, potential material substitution, intensified competition, and raw material price volatility. The industry is in its early stages, with rapid shifts possible due to technological breakthroughs and policy changes.