Core Viewpoint - The article discusses the challenges and advancements in the reliability assessment of energy storage systems, emphasizing the need for a comprehensive evaluation framework that incorporates lessons from other industries and various assessment methodologies [2][4][10]. Group 1: Reliability Assessment Challenges - Current energy storage systems face challenges such as incomplete reliability assessment methods and difficulties in overall evaluation [2] - The roundtable discussion aimed to explore the reliability assessment of energy storage systems by leveraging experiences from data center UPS power supplies and automotive battery management systems (BMS) [4] Group 2: Evaluation Framework - A three-stage evaluation system for lithium battery reliability was proposed, focusing on research and development, production, and application phases [5] - The evaluation metrics include market failure rates, which rely on big data platforms for real-time tracking of customer complaints and product performance [5][6] Group 3: Comparison of UPS and PCS - A comparison between data center UPS and energy storage PCS highlighted differences in application scenarios and power supply architectures [7] - UPS systems require a reliability level of 99.999%, while PCS systems do not have such extreme requirements, indicating a growing trend towards lithium battery applications in data centers [7] Group 4: BMS Safety and Reliability - The development trends in BMS safety standards were discussed, with a focus on the GB/T39086 standard and the automotive industry's requirement for C-level safety [8] - Continuous optimization of safety measures through improved sensor accuracy and control strategies is expected to enhance BMS reliability [8] Group 5: Safety Analysis of Energy Storage Systems - The safety challenges of energy storage systems are increasing due to higher energy density and longer lifespans [9] - A method combining fault tree analysis (FTA) and Bayesian networks was proposed to evaluate failure probabilities and establish safety levels for energy storage products [9] Group 6: Overall Reliability Evaluation System - A reliability evaluation system for energy storage systems was proposed, focusing on accident occurrence models and integrating subsystem evaluations [10] - The system categorizes energy storage operations into four protective layers, allowing for a comprehensive assessment of overall reliability [10]

Core Viewpoint - The global energy structure is rapidly transitioning towards clean and low-carbon solutions, with energy storage emerging as a core supporting technology for new power systems. However, safety incidents related to electrochemical energy storage systems, such as lithium-ion battery thermal runaway and issues with system integration quality, pose significant challenges to the industry's high-quality development, necessitating collaborative efforts to address these challenges [1]. Group 1: Event Overview - The Fifth Energy Storage Safety Seminar and the National Key R&D Program project "International Lithium-Ion Battery Energy Storage Safety Evaluation Key Technology Cooperation R&D" will be held in Tianjin on October 16-17, 2025 [1]. Group 2: Roundtable Discussions - Roundtable discussions will cover various topics, including large-scale fire tests, the necessity of "burn chamber" tests, and the impact of different testing conditions on outcomes [3][4]. - The discussions will also explore the reliability assessment of energy storage systems and lessons from other industries, focusing on the current safety status and the necessity of fire extinguishing systems in energy storage configurations [8][9]. Group 3: Expert Contributions - Experts from various institutions will present on topics such as lithium battery reliability evaluation, safety assessment technologies, and the application of reliability assessment methods like FTA (Fault Tree Analysis) and FMEA (Failure Mode and Effects Analysis) [9][10]. - The discussions will also address the necessity of fire extinguishing systems, the adaptability of existing extinguishing methods, and the principles of emergency response for energy storage incidents [15][21]. Group 4: Conference Agenda - The conference will feature keynote speeches from prominent researchers and industry leaders, covering topics such as fire prevention strategies for lithium batteries, intelligent battery technologies, and safety evaluation techniques for energy storage systems [17][21]. - The agenda includes a series of thematic reports and roundtable discussions aimed at enhancing safety and reliability in energy storage systems [13][14]. Group 5: Organizing Institutions - The event is organized by the Zhongguancun Energy Storage Industry Technology Alliance, the Emergency Management Department's Tianjin Fire Research Institute, and the National Energy Storage Technology Industry-Education Integration Innovation Platform at Tianjin University [24][26]. - Various supporting organizations and industry leaders are involved, including major energy companies and research institutions [24][28].