Xin Lang Cai Jing·2025-12-15 13:33Core Viewpoint - The solid-state battery industry is experiencing significant investment and market enthusiasm, but there are growing concerns about its safety and the potential for traditional lithium batteries to remain relevant [2][3][20]. Investment and Market Trends - Over 40 investment events related to solid-state batteries have occurred this year, attracting various national and international investors, including major financial institutions and venture capital firms [2][19]. - The solid-state battery index has seen substantial growth, with individual stocks like Shanghai Xiba (SH: 603200) increasing over 241% this year, and a notable trading volume of 16.1 billion on September 5 for Pioneer Intelligent (SZ: 300450) [2][19]. Safety Concerns - Experts are cautioning against the absolute safety claims of solid-state batteries, highlighting that they also have safety risks, particularly in the context of thermal runaway [3][21][22]. - The potential for solid-state batteries to cause more severe incidents if they fail is compared to traditional lithium batteries, which are seen as less dangerous in failure scenarios [21][22]. Technological Developments - The solid-state battery is often touted as the "ultimate form" of lithium batteries, but the industry is witnessing advancements in traditional lithium battery safety through material innovations and structural optimizations [26][27]. - Research is ongoing into flame-retardant additives and surface coating technologies for traditional lithium batteries, which are showing promise in enhancing safety [27][29]. Route Controversy - The solid-state battery technology landscape includes various routes: sulfide, oxide, and polymer, with sulfide being previously viewed as the leading option [31][32]. - Recent developments indicate that other routes, particularly polymer and oxide technologies, are making significant progress and may challenge the dominance of sulfide technology [34].