Core Viewpoint - The article emphasizes the emergence of the term "safety-cost ratio" in the industry, highlighting the need for optimal cost production while ensuring extreme safety standards in battery manufacturing [3]. Group 1: Industry Trends - The new national standards for power batteries have shifted the focus from "surviving 30 minutes after thermal runaway" to a fundamental requirement of "no fire, no explosion" [3]. - Material innovation is transitioning from individual advancements to a system integration approach that prioritizes safety [3]. Group 2: Company Innovations - Reen Energy's cylindrical battery cells utilize a steel shell structure, achieving a wide temperature range of -40℃ to 80℃, suitable for various demanding applications [4]. - Reen's "non-terminal ear" technology reduces internal resistance by over 80% and temperature rise by over 30%, effectively mitigating local thermal runaway risks [4]. - The performance matrix of Reen's products shows significant advantages, with energy densities exceeding 270Wh/kg for mass production models and over 350Wh/kg for pre-research models [4][5]. Group 3: Material Developments - Composite current collectors are highlighted as revolutionary materials that address safety challenges in lithium batteries, with a focus on high ductility and lightweight characteristics [5][6]. - The composite copper and aluminum structures developed by Yinglian achieve significant safety breakthroughs, passing puncture tests and maintaining corrosion resistance [5][6]. Group 4: Challenges in Silicon-Carbon Technology - Shanshan Technology is advancing silicon-carbon products with a focus on uniform distribution and high performance, targeting a market demand exceeding 45,000 tons by 2028 [9]. - Challenges include high silicon expansion, insufficient pressure resistance, limitations in fast charging, high costs, and safety management of hazardous gases during mass production [10][12]. Group 5: Safety Innovations - Aochuang Technology proposes a multi-layered safety framework to enhance battery protection, utilizing advanced materials that maintain low thermal conductivity even at high temperatures [15]. - The introduction of a new explosion-proof membrane by Ample provides an efficient and cost-effective solution for battery pack safety, ensuring rapid pressure release during thermal runaway [17][18].