海辰储能：以极致追求引领长时储能新高度

Core Insights - The increasing penetration of renewable energy is driving higher demands for energy storage duration and performance, with a focus on safe long-duration energy storage systems [2][3] - Recently, Haicheng Energy showcased two significant advancements at the SNEC 2025 International Solar Photovoltaic and Smart Energy Conference, including the world's first kilowatt-hour storage battery and a successful extreme combustion test [2][3] Group 1: Technological Advancements - Haicheng Energy has achieved mass production of the world's first 1175Ah battery cell, marking a significant step towards large-scale application in long-duration energy storage [4][5] - The new battery cell offers four key advantages: ultra-large capacity, ultra-long lifespan, ultra-high safety, and ultra-low cost, with a capacity 3.7 times that of traditional 314Ah cells and a cycle life exceeding 10,000 cycles [5][6] - The production efficiency of the new battery cell has improved by 35-45% due to innovative manufacturing processes, and the associated energy storage system has reduced costs by 30% compared to traditional solutions [5][6] Group 2: Safety Innovations - Haicheng Energy conducted a groundbreaking open-door combustion test on its 5MWh storage system, demonstrating its safety performance under extreme conditions [7][8] - The test revealed that the system maintained temperatures well below the thermal runaway threshold, showcasing its ability to prevent fire spread and protect personnel during emergencies [8][9] - This test sets a new safety benchmark for the energy storage industry, validating the system's autonomous fire protection capabilities without external intervention [8][9] Group 3: Industry Impact - The advancements in long-duration energy storage technology are crucial for the development of new power systems, addressing key challenges such as initial costs and safety performance [3][4] - The successful mass production of the 1175Ah battery cell and the innovative safety testing position Haicheng Energy as a leader in the transition to a TWh-scale energy storage era [4][6] - The company's commitment to safety and innovation reflects a broader trend in the industry towards sustainable and reliable energy storage solutions [9][11]