北测新能源 事业部总经理 赵庆利：强制性国标GB 44240-2024z专家解读

Core Viewpoint - The article discusses the introduction of China's first mandatory national standard for energy storage batteries, GB 44240-2024, which will be implemented on August 1, 2025, focusing on safety requirements for lithium batteries in energy storage applications [6][5]. Group 1: Overview of the Forum - The 2025 User-Side Energy Storage and Battery Technology Forum was held in Shenzhen, attracting over 800 attendees to discuss key topics such as commercial energy storage, portable energy storage, and safety challenges in the industry [1]. Group 2: Introduction of GB 44240-2024 - GB 44240-2024 is the first mandatory national standard for energy storage batteries in China, differing from previous recommended standards [5][6]. - The standard aligns closely with international standards, with 80% similarity to European standards, and is primarily focused on safety considerations [6]. Group 3: Certification Process - The certification process for GB 44240 involves application, type testing, initial factory inspection, and post-certification supervision, with a certification cycle of five to six weeks, compared to six months for the previous GB/T 36276 standard [7]. - The standard requires different certification units for battery cells, modules, and systems based on their specifications and configurations [7]. Group 4: Testing Requirements - The standard outlines rigorous testing requirements for battery cells, including safety, environmental, and thermal runaway tests, with specific procedures and conditions for each test [11][19]. - Testing includes various conditions such as low pressure, temperature cycling, vibration, and overcharging, ensuring that batteries do not catch fire or explode under stress [13][15][17]. Group 5: Labeling and Documentation - Batteries must have clear labeling indicating safety usage lifespan and unique coding for traceability in case of incidents [22]. - The certification is valid for five years, with annual factory audits required, and any changes in product design or safety parameters must be reported for certification updates [8][26].