EVE(SZ:300014) 3 6 Ke·2025-04-26 13:33Core Viewpoint - The Shanghai International Automobile Industry Exhibition showcases EVE Energy's core technology products, with the cylindrical battery being highlighted as the optimal solution for electric vehicles [1][2]. Group 1: Key Advantages of Cylindrical Batteries - Standardization: The cylindrical battery aligns with the efficiency requirements of the automotive industry, addressing the capacity mismatch issue in China's battery industry over the past decade. It boasts a manufacturing efficiency that is ten times higher than that of square batteries, allowing for standardized design and assembly processes [1]. - In-situ Upgrading: The cylindrical battery's "fixed size + diversified chemical system" technology can adapt to various chemical systems, including LFP, LMX, and NCM, enabling flexible adjustments in energy capacity, range, charging time, and power. This innovation can reduce development time to 3-6 months and cut R&D costs by 80% [1][2]. - Zero Expansion: The cylindrical battery's design eliminates the need for complex stress management, maintaining consistent dimensions throughout its lifecycle. This simplifies the electronic system's storage and enhances safety through advanced materials and construction techniques [2]. Group 2: Technical Challenges and Solutions - Low-Temperature Performance: EVE Energy has developed new technologies to overcome low-temperature challenges, allowing the cylindrical battery to achieve fast charging in -30°C conditions and improve low-temperature range by 20% [2]. - High Precision Grouping: The battery system typically contains 700-800 cells, and EVE Energy has achieved vertical control of 200μm and horizontal positioning accuracy of 250μm, ensuring uniform heat transfer and stable operation [3]. - Reliable Welding: With over 1500 welding points in each battery pack, EVE Energy has achieved a welding depth precision of 80μm, ensuring the reliability of electrical connections [3]. - High-Density Foaming: The cylindrical battery's strength is five times that of square batteries, and the application of full-domain foaming technology enhances its torsional rigidity to over 15000NM, contributing to vehicle stability [3]. Group 3: Market Performance and Partnerships - Production Milestone: EVE Energy has delivered over 32,000 units of cylindrical batteries since commencing mass production 15 months ago, with a record of over 210,000 kilometers per vehicle without accidents [4]. - Expanding Partnerships: The cylindrical battery products have been adopted by major manufacturers such as Changan, FAW, BMW, NIO, and JAC, with plans for gradual scale delivery in the future [5].