Core Viewpoint - Rongbai Technology has recently received authorization for a patent focused on cathode composite coating technology, addressing the high-temperature cycling stability challenge in all-solid-state batteries [1] Group 1 - The patent number for the newly authorized invention is ZL202410843447.9 [1] - The innovation represents a significant breakthrough in material innovation for the company [1] - The technology specifically targets the stability issues associated with high-temperature cycling in all-solid-state batteries [1]

近日，由中国石油大学(华东)与上海空间电源研究所联合完成的高比能、高安全性锂二次电池材料开发 与应用项目，凭借在锂二次电池材料领域的多项突破性成果，获得山东省科学技术奖技术发明一等奖。 近年来，新能源汽车、航空航天等领域快速发展，对锂二次电池的比能量和安全性提出了更高要求。我 国新能源战略规划及航空航天重大工程明确提出，未来电池比能量需提升至500瓦时/千克以上，但当前 传统锂离子电池依赖高镍三元正极、硅碳负极和有机电解液的组合，比能量已接近350瓦时/千克的理论 极限，且存在严重安全隐患。 二是稳定固/固界面保障电池循环性能。针对金属锂负极与固态电解质界面不稳定的问题，团队开发了 共轭骨架电解质新体系，其"给—受"结构可高效解离锂盐，显著降低界面极化，使固态电池锂离子转移 数达0.839，对锂稳定性超10500小时。同时，团队采用聚合物辅助表面无定形化技术消除晶面错位，降 低界面阻抗，使复合材料离子输运性提升138%。 三是创新制造技术实现高均一度全固态电池量产。团队发明了电极片梯级界面逐层构筑技术，通过流延 成型结合物理沉积，实现阶梯式电极结构可控构筑，平衡了电池高功率特性与循环稳定性。他们开发的 国内首 ...

Core Viewpoint - The solid-state battery industry is experiencing significant growth, with production expected to reach 5.1 GWh in 2024 and 29.2 GWh by 2028, driven by technological advancements and the demand for sustainable energy solutions [1]. Solid-State Battery Technology Latest Developments - The engineering challenges of all-solid-state batteries include high interfacial resistance and sensitivity to air and moisture, with strategies such as controlling particle size and surface coating being explored to enhance performance [5][7]. - The industry trend is shifting towards solid-state batteries, which require external stress to address interfacial contact issues, and the adoption of soft-pack structures is recommended to avoid mechanical failures [7]. - Innovations in materials include the development of lithium-rich manganese-based cathodes and silicon-based anodes, with companies achieving significant production capabilities [9][11]. - Sulfide solid electrolytes have seen advancements, with companies achieving production scales of over 100 kg and plans for larger production lines by 2025 [13][15]. Solid-State Battery Processing Innovations - Companies are addressing technical challenges such as interfacial resistance and compatibility with conventional materials through various innovative processing techniques [23][25][27]. Market Application Prospects - Solid-state batteries are expected to have broad applications in power and energy storage sectors, with potential mass production starting in 2027 [29]. - In consumer electronics and low-altitude aircraft, solid-state batteries are favored for their lightweight and high energy density, making them suitable for drones and safety-critical devices [31]. Solid-State Battery Industry Chain Development - The localization of key materials is accelerating, with companies focusing on the industrialization of high-purity lithium sulfide for solid electrolyte production [33]. - Collaboration between enterprises and academic institutions is deepening, enhancing the development of materials for solid-state batteries [35]. Future Outlook and Challenges - Continuous innovation in solid-state battery technology is crucial for commercial application, with expectations for improvements in energy density, safety, and cycle life [38]. - The collaborative development of the solid-state battery industry chain is essential for its healthy growth, requiring coordination across all production stages [39]. - Challenges such as high material costs and complex production processes remain, with experts suggesting strategies like enhancing basic research and optimizing production methods to address these issues [40]. Conclusion - The successful forum highlighted the importance of collaboration and innovation in the solid-state battery sector, indicating a promising future for this technology in energy storage applications [44].

固态电池板块更新及推荐 20250513 摘要 • 市场对固态电池技术创新兴趣浓厚，受硫化物专利公布和行业会议推动， 固态电池板块行情易受产业催化、流动性溢价及机器人/无人机板块联动影 响，且每一轮行情均有如硫化物、氧化物等新主题。 • 固态电池技术路线日益聚焦，硫化物固态电解质被视为终极方向，辅以卤 化物掺杂；正极材料中期以高镍三元为主，远期展望富锂锰基；负极材料 以硅基为主，展望锂金属，此技术聚焦有助于加速降本迭代。 • 固态电池应用场景从车用动力电池扩展至储能、消费电子、电动工具、低 空飞行器及机器人等领域，需求端日益丰富，有利于固态电池放量和成长 曲线发展。 • 投资固态电池板块应关注材料（聚焦硫化物体系，如厦钨、宁德时代）、 电池（关注大厂及消费电子领域二线厂商，如普里克、豪腾等）和设备 （围绕干法路线，如纳科诺尔、曼恩斯特）三个方向。 • 负极材料技术从传统石墨迭代至硅碳，再到锂金属。宁德时代发布自生成 负极的锂金属技术，硅碳已在消费电池领域推广，锂金属开始量产，显示 出其成熟度和应用前景。 Q&A 固态电池产业链的近期发展情况如何？ 固态电池应用场景从原来的车用动力电池逐渐扩展到储能市场、消费电 ...