


Core Viewpoint - The solid-state battery industry is accelerating its commercialization process, with expectations for vehicle integration starting in 2026 and large-scale production by around 2030 [1][3]. Group 1: Industry Development - The research and development of solid-state batteries is progressing rapidly, transitioning from laboratory to pilot production lines [2]. - Leading battery manufacturers have achieved pilot production levels, with vehicle integration expected to begin in 2026 [2][3]. - Major players like CATL and BYD are investing heavily in solid-state battery technology, with CATL aiming for small-scale production by 2027 and large-scale production by 2030 [3]. Group 2: Material Trends - The industry is increasingly focusing on sulfide electrolytes as the main direction for solid-state batteries, with the LSPC route gaining traction [2][4]. - Sulfide electrolytes have shown ion conductivity levels approaching that of liquid lithium batteries, but environmental concerns and solid-solid interface issues pose challenges for commercialization [4]. Group 3: Production Challenges - Lithium sulfide, a key raw material for sulfide electrolytes, has a high production cost exceeding 3 million yuan per ton, accounting for over 50% of the battery cell cost [5]. - Current domestic lithium sulfide manufacturers are primarily at the pilot production scale, and environmental regulations regarding hydrogen sulfide may present significant barriers to mass production [5].