鹏辉能源 研发总监 周琰俊:大电芯 大时代:TWh时代大容量储能电芯的技术底色

Core Viewpoint - The energy storage industry is experiencing rapid growth, with a significant increase in lithium battery installations globally, driven by technological advancements and a shift towards high-value, reliable solutions [6][7][10]. Industry Trends - The global installed capacity of lithium batteries reached 170 GWh by the third quarter of 2025, representing a year-on-year growth of 68%, with domestic growth at 61% and overseas growth at 74% [6]. - Chinese companies have expanded their overseas orders to 163 GWh in the first half of the year, marking a staggering increase of 246% year-on-year, covering over 50 countries [6]. - The industry is transitioning from low-cost competition to a focus on the entire lifecycle value, technological innovation, and reliability [6][7]. Evolution of the Energy Storage Industry - The industry has progressed through three stages: 1. Policy-driven and pilot verification (1.0 era) 2. Initial commercialization and pursuit of economic viability (2.0 era) 3. Scalable development focusing on high-value and reliable solutions (3.0 era) [7]. - The core value proposition has shifted from initial investment costs to a comprehensive pursuit of safety, longevity, efficiency, and simplified operations [8]. Technological Innovations - The next generation of battery cells is essential for overcoming the bottlenecks of large-scale development, aiming to create a safer, smarter, and more durable energy storage system [8][9]. - The focus is on developing larger capacity cells, with advancements from 280 Ah to 314 Ah, and future expectations for even larger capacities, enhancing system capacity from 3.44 MWh to over 6 MWh [8]. - The introduction of large cells aims to reduce complexity and potential failure points associated with smaller cells, thereby improving overall system reliability [8][9]. Safety and Reliability Concerns - Thermal runaway risks remain a significant concern as project scales increase, with potential impacts and economic losses growing exponentially [9]. - The market demands high cycle life and efficiency across various extreme environments, necessitating differentiated performance and reliability from traditional battery solutions [10]. Company Innovations - Penghui Energy has developed the "Fengpeng" large cell technology, emphasizing reliability and efficiency as key attributes [11][12]. - The company employs a three-tiered protection strategy for safety, including: 1. Nano-shield technology to prevent thermal runaway [13]. 2. Gel flame-retardant electrolyte technology [14]. 3. Honeycomb carbon cooling technology for efficient heat management [14]. - The Fengpeng 587 Ah battery has been tested for safety and achieved a cycle life of 10,000 cycles at room temperature, setting a new standard for the next generation of energy storage systems [18].