Core Viewpoint - The article discusses the advancements in battery technology showcased by Hive Energy at the 17th Shenzhen International Battery Technology Exchange and Exhibition (CIBF2025), emphasizing the importance of the stacking process for fast-charging and solid-state batteries. Group 1: Stacking Technology - Hive Energy's chairman, Yang Hongxin, believes that the stacking process is the best solution for mass production of fast-charging and solid-state batteries, outperforming the traditional winding process in terms of stress distribution and metal deposition morphology [1] - The stacking process leads to more uniform metal deposition within the cell, making it the only viable technology for mass production of all-solid-state batteries, especially under the brittle conditions of solid electrolytes [1] - Hive Energy has focused on the stacking process since its inception, which began to gain traction in the power battery industry in 2018, contrasting with the well-established winding process [1] Group 2: Innovations in Stacking Process - The most common stacking technologies in the industry are Z-stacking and cut-stacking, while Hive Energy employs a thermal composite stacking technology that allows for eight stations to stack simultaneously, achieving a stacking efficiency of 0.125 seconds per piece [2] - Significant innovations were made in the design, manufacturing processes, production line algorithms, and raw materials to develop the thermal composite stacking technology, fundamentally transforming the entire production chain [2] - More companies are adopting stacking methods for battery production, including Geely's Jiyao Tongxing and GAC Aion's Yinpai Battery [2] Group 3: Fast-Charging Technology - Yang Hongxin highlighted that over 60% of EV/PHEV users charge their batteries to full capacity, while the industry typically focuses on charging times between 10%-80% SOC for EVs and 30%-80% SOC for PHEVs, neglecting the efficiency of the final charging stage [3] - Hive Energy aims to enhance the fast-charging performance at the end stage, achieving a full charge time of 15 minutes for its 4C fast-charging project, with the time to charge from 80%-100% SOC reduced to 5 minutes, a 30% improvement over competitors [3] - The 4C fast-charging project utilizes the stacking process, allowing for higher charging capabilities and features a smart dual-temperature control system for optimal battery charging conditions [3] Group 4: Second-Generation Dragon Scale Battery - The second-generation Dragon Scale battery is the largest hybrid battery globally, featuring a capacity of 65 degrees, supporting 800V fast charging, and a range exceeding 400 kilometers [3] - This battery can charge from 20% to 80% SOC in just 12.1 minutes, with fast charge cycles exceeding 1600 times and supporting 6C ultra-fast charging [4] - The battery incorporates a "thermal-electrical separation" technology to prevent short-circuit risks and meets new national standards with a robust design capable of withstanding impacts of up to 1000J, exceeding the new standards by six times [4] - The second-generation Dragon Scale battery is set for mass production in mid-June 2025, with plans to equip high-end MPVs, sedans, and SUVs [4]
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3 6 Ke·2025-05-17 09:02