专访欣旺达动力中央研究院院长徐中领：eVTOL电池需要在能量密度、功率密度和安全性三者间找到平衡

Core Viewpoint - The low-altitude economy is gaining momentum since it was included as a strategic emerging industry in the 2023 Central Economic Work Conference, with battery technology being a critical barrier to its development [1][2]. Group 1: Battery Technology Requirements - Aviation batteries require high energy density, high power density, and extreme safety, making them more demanding than batteries for electric vehicles [1][3]. - Energy density for aviation batteries needs to reach at least 300Wh/kg to ensure economic viability, with some experts suggesting a target of 400Wh/kg for widespread electric aircraft use [5][6]. - Safety standards for aviation batteries include the ability to withstand a 15-meter drop without failure [7]. Group 2: Development and Market Outlook - The company began developing aviation batteries in 2023, coinciding with significant industry milestones such as the inclusion of low-altitude economy in national strategy and the first eVTOL airworthiness certificate [3][10]. - The market for low-altitude flying vehicles is expected to gradually grow after 2027, with a potential explosion in demand by 2030, similar to the trajectory of the electric vehicle market [10][11]. Group 3: Product Offerings - The company showcased three types of batteries at the Shanghai Auto Show, including a 230Wh/kg high-power soft pack battery, a 360Wh/kg soft pack cell, and a 350Wh/kg cylindrical cell, each designed for different aviation applications [8]. - Current production batteries have an energy density of 320Wh/kg, suitable for low-altitude logistics and tourism applications, with ongoing development for higher density batteries [16]. Group 4: Safety and Reliability - The company emphasizes high safety and reliability for passenger-carrying aircraft, with specific requirements for battery performance under failure conditions [17][18]. - Safety features include advanced monitoring systems and materials designed to withstand high temperatures and prevent thermal runaway [18]. Group 5: Competitive Advantages - The company's aviation batteries are developed based on customer needs, achieving a balance between energy density, power density, and safety [21]. - Future solid-state products are expected to exceed 400Wh/kg in energy density, positioning the company among the top tier in the domestic market [22].