Core Viewpoint - The article discusses a significant breakthrough by Shenzhen Xinzhou Technology Co., Ltd. in the field of high-voltage lithium batteries, specifically the development of an innovative electrolyte additive (CBS) that enhances battery performance and safety under high voltage conditions [1][21]. Group 1: Innovation and Mechanism - The CBS additive is designed to address challenges associated with high-voltage operation, such as lattice oxygen loss and metal ion dissolution, which can lead to battery capacity degradation [2][4]. - CBS combines the structural advantages of carbonate and sulfate, creating a hybrid molecule that forms a stable SEI (Solid Electrolyte Interphase) and CEI (Cathode Electrolyte Interphase) to enhance battery performance [2][4]. Group 2: Performance Improvements - The use of CBS in NCM613 pouch batteries shows a capacity retention rate of 94% after 600 cycles at 25°C and 90% after 1000 cycles at 45°C, significantly outperforming the baseline electrolyte [7]. - In high-temperature storage tests at 60°C, batteries with CBS maintained a capacity retention of 90% after 30 days, with only 3% volume expansion, compared to just 13% capacity retention and 34% expansion for the baseline electrolyte [8]. - Safety tests indicate that the decomposition temperature of SEI formed with CBS increased from 124.89°C to 139.98°C, and CEI decomposition temperature rose from 93.11°C to 121.42°C, reducing the risk of thermal runaway [9]. Group 3: Versatility and Market Potential - CBS is not limited to the NCM system; it also shows excellent performance in other battery chemistries, such as LiCoO₂ and LiMn₀.₆Fe₀.₄PO₄, demonstrating strong capacity retention across various temperature conditions [16][17]. - The technology has garnered attention from leading industry players, indicating its potential for widespread application and commercial value in the electrolyte materials sector [22]. Group 4: Research and Development Strength - Xinzhou has invested heavily in R&D, with a team of nearly 1,000 and an annual investment exceeding 400 million yuan, ensuring a robust foundation for technological breakthroughs [23]. - The CBS additive's development is a result of collaboration with Southern University of Science and Technology, highlighting the importance of industry-academia partnerships in driving innovation [25].