Core Insights - In the past two months, several domestic energy storage manufacturers, including Vision Energy and Canadian Solar, have released the results of their fire chamber tests for energy storage systems [1] - At least 11 energy storage companies have conducted large-scale fire tests, which are reported to cost over ten million yuan each [1] - Successful completion of these tests is seen as a direct reflection of a company's technical strength and could enhance competitive positioning in the market [1] - Some overseas clients are already requesting proof of these tests, although they are not yet mandatory in China [1] - Concerns have been raised that if the testing requirements become too stringent, it may limit the number of capable domestic manufacturers, which could be detrimental to the growing energy storage industry [1]

Core Viewpoint - REPT BATTERO has successfully passed a large-scale fire test for its 5MWh energy storage battery cabinet, demonstrating its ability to prevent thermal runaway and setting a new safety benchmark in the energy storage industry [21][22]. Group 1: Test Overview - The fire test involved a fully charged 5MWh battery cabinet that burned continuously for 14 hours, simulating five types of composite fire scenarios [21][22]. - The test was conducted under extreme conditions, with the battery storing maximum energy and exhibiting high chemical activity, which significantly increases the risks associated with thermal runaway [22][23]. Group 2: Testing Methodology - Ignition was triggered using a combination of internal heating and external propane flame injection, creating a realistic simulation of catastrophic accident scenarios [23]. - The test design included a rigorous setup that removed active fire suppression systems, relying solely on the battery cabinet's passive safety features to manage the fire [13][20]. Group 3: Safety Performance - The test successfully prevented the spread of thermal runaway, with the highest flame temperature reaching 1380°C while maintaining the internal temperature of adjacent battery cells below 57°C, indicating effective thermal management [7][20]. - The testing apparatus was designed to simulate the harshest fire scenarios, adhering to multiple core safety standards, including CSA/ANSI C800:25, NFPA 855, and UL 9540A [22]. Group 4: Data Collection and Analysis - Over 600 temperature monitoring points were deployed during the test, allowing for comprehensive data collection on the fire's behavior and the battery's performance [20]. - Post-test inspections revealed that the battery cabinet's structural integrity remained intact, with no collapse or significant damage, further validating the product's safety design [20].

Core Viewpoint - The article highlights the successful completion of an extreme fire test conducted by Ruipu Lanjun on its Powtrix® 5MWh energy storage battery system, demonstrating its enhanced safety performance under severe conditions [2][20]. Group 1: Testing Conditions and Methodology - The fire test was conducted under extreme conditions, simulating a worst-case scenario with a fully charged battery, which poses the highest risk of thermal runaway and fire spread [3][4]. - The test involved a combination of internal heating and external propane flame exposure, leading to a sustained burn of approximately 14 hours after a 3-hour ignition trigger [4][19]. - The test design included exposure to five types of fire (solid, liquid, gas, metal, and energized equipment), assessing the battery system's resilience against complex fire scenarios [4][10]. Group 2: Safety Performance and Results - The Powtrix® battery system successfully prevented thermal runaway from spreading to adjacent battery units, with the maximum flame temperature reaching 1380°C while maintaining the internal temperature of neighboring units below 57°C [7][20]. - The test was conducted without active fire suppression systems, relying solely on the battery's passive safety design, which proved effective in containing the fire [13][20]. - Over 600 temperature monitoring points were deployed during the test, providing comprehensive data collection and analysis of the combustion process, which received commendation from fire safety engineering experts [19][20]. Group 3: Industry Implications - This rigorous testing sets a new benchmark for safety in the energy storage industry, showcasing Ruipu Lanjun's capabilities in battery technology development and system safety design [20]. - The successful demonstration of the Powtrix® system's safety features contributes significantly to advancing the overall safety and reliability standards within the energy storage sector [20].

Core Viewpoint - Envision Energy (AESC) has become the first company in China to obtain the GB 44240-2024 certification for lithium batteries used in energy storage systems, marking a significant milestone in the safety management of energy storage batteries in China [1][2]. Summary by Sections Certification and Standards - GB 44240 is China's first mandatory national standard for the safety of lithium batteries used in energy storage, set to be implemented on August 1, 2025, indicating a major step forward in safety management within the industry [2]. - The certification process took three years, organized by the Ministry of Industry and Information Technology and drafted by the China Electronics Standardization Institute, focusing on product safety characteristics [2]. Safety and Reliability - Envision Energy's achievement of the GB 44240 certification demonstrates its leadership in safety across the entire value chain, including design, manufacturing, and operational management, contributing to the high-quality development of China's energy storage industry [2]. - The standard includes rigorous testing items such as vibration, impact, puncture, and forced discharge, emphasizing the importance of safety throughout the product lifecycle [2]. Company Achievements - Envision Energy has a strong safety record, having supplied over 1 million electric vehicles and more than 40 GWh of energy storage systems globally, maintaining a "0 major accident" safety record [2]. - The company's energy storage-specific cells have passed over 200 global safety tests and received multiple certifications from various international standards [3]. Industry Collaboration - Envision Energy has established deep collaborations with leading energy storage integrators such as Fluence, Powin, and Nidec to meet local demands for battery products and supply chains globally [4]. Upcoming Events - The 13th International Energy Storage Summit and Exhibition (ESIE 2025) is scheduled for April 10-12, 2025, in Beijing, where Envision Energy will prominently participate [5][6].