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汇创新能源 研发副总 刘静铜:软包电芯在换电产品上的PACK应用
起点锂电· 2025-07-11 11:53
Core Viewpoint - The 2025 Fifth Chang'an Two-Wheeled Vehicle Battery Exchange Conference focuses on the development of two-wheeled vehicles and battery exchange technologies, highlighting advancements in lithium and sodium batteries, high-rate charging, and new materials and processes [1]. Group 1: Industry Trends - The conference gathered over 300 key players in the two-wheeled vehicle battery exchange sector and more than 600 executives to discuss industry development [1]. - The industry has seen a significant shift towards soft-pack battery applications in battery exchange scenarios, with over 30 million units shipped in the past five years [3][4]. Group 2: Technical Insights - The industry has evolved through two phases: initial exploration and subsequent enhancement of product reliability, achieving a fault rate of less than 1% in 2023, compared to the industry average of 3-5% [4]. - Key challenges in battery exchange products include battery offline issues, power self-protection, and vehicle aging, necessitating ongoing research and development [5][7]. Group 3: Product Features - The demand for battery exchange products includes features such as IP67 waterproofing, vibration damping, battery level indicators, temperature detection connectors, and alarm systems [9]. - The core of the PACK design focuses on protecting battery cells and Battery Management Systems (BMS), emphasizing modular design for easy maintenance and enhanced reliability [10][11]. Group 4: Safety and Performance - The design incorporates a 20% power redundancy to ensure safety during operation, with rigorous testing standards for short-circuit protection and thermal management [12][13][15]. - The introduction of new battery series, such as the Guangyi and Zhenxing series, achieves energy densities of 195Wh/KG for cells and 145Gh/KG for PACK [17].