该团队创新性采用成熟的超声波喷涂技术，将廉价乙酰丙酮锌（ZA）材料制成厚度不到10微米的涂 层，为锌负极构筑"双重防线"。该涂层表面带负电，可与氯离子同性相斥阻挡腐蚀；同时对锌离子亲和 力强，引导其有序沉积避免枝晶生长，实现腐蚀阻隔与离子高效传输的平衡。 团队骨干、海南大学副教授史晓东介绍，这项技术应用前景明确，可适配海上风电、光伏项目建设长效 储能站；为海洋牧场、深海网箱的传感器及通信基站供电；能助力岛礁供电，降低对柴油发电和淡水的 依赖。超声波喷涂工艺成本低、易规模化，为产业化奠定基础。该研究推广后有望为海洋能源供给提供 新方案。 （文章来源：科技日报） 11月13日，记者从海南省科学技术厅获悉，海南大学海洋清洁能源创新团队联合新加坡国立大学研发 的"智能纳米盾牌"技术使锌电池在天然海水中待机时长达4268小时（约178天），寿命较未保护电池提 升16倍，成功攻克海水电池锌负极腐蚀难题。该成果日前发表于《先进材料》，标志着我国在海水基储 能技术上迈出了重要一步。 水系锌电池因安全廉价被视为大规模储能优选，而直接采用天然海水作电解液的"海水基电池"，更 因"就地取材"的成本优势备受关注。团队负责人、海南大学 ...

Core Insights - The "smart nano shield" technology developed by Hainan University and the National University of Singapore significantly enhances the performance of zinc batteries in natural seawater, achieving a standby time of 4268 hours (approximately 178 days) and extending battery life by 16 times compared to unprotected batteries [1][2] Group 1: Technology Breakthrough - The research addresses the critical issue of zinc anode corrosion in seawater batteries, which is caused by the strong corrosiveness of chloride ions, leading to rapid performance degradation [1] - The innovative use of ultrasonic spraying technology to create a sub-10 micron coating of inexpensive zinc acetylacetonate (ZA) material provides a "dual defense" for the zinc anode [1] - The coating's negatively charged surface repels chloride ions while promoting orderly deposition of zinc ions, balancing corrosion prevention and efficient ion transport [1] Group 2: Application Prospects - The technology has clear application prospects, including long-term energy storage for offshore wind and solar projects, powering sensors and communication bases in marine ranches and deep-sea cages, and supporting island power supply while reducing reliance on diesel generators and freshwater [2] - The low cost and scalability of the ultrasonic spraying process lay a solid foundation for industrialization, potentially offering new solutions for marine energy supply [2]

Group 1 - The ocean economy is a significant driver of GDP growth, with the national marine production value expected to exceed 10 trillion yuan in 2024, accounting for 7.8% of the GDP, and contributing 11.5% to economic growth [1][8] - The government has highlighted "deep-sea technology" in its reports, indicating its importance alongside commercial aerospace and low-altitude economy, suggesting a rapid development potential in deep-sea equipment and exploration [1][8] - The deep-sea technology sector is identified as a key pillar for building a maritime power, encompassing three main areas: deep-sea materials, deep-sea equipment manufacturing, and deep-sea digital applications [3][17] Group 2 - Various provinces and cities are accelerating the development of marine economy, with policies focusing on high-end, intelligent, and green development, and establishing multi-level industrial systems [2][13] - Shanghai's marine industry development plan (2025-2035) proposes a "3+5+X" industrial system, while Guangdong's regulations emphasize support for eight emerging marine industry clusters [2][14] - The deep-sea materials sector is crucial for deep-sea technology, involving structural and buoyancy materials necessary for the development of marine resources, with a focus on high-performance steel, alloy materials, and composite materials [3][21] Group 3 - The deep-sea equipment sector is essential for supporting deep-sea development, facing challenges from complex underwater environments, with significant growth in China's shipbuilding industry, which saw a 13.8% increase in completed shipbuilding volume in 2024 [4][26] - The deep-sea digitalization and intelligence sector is a vital direction for deep-sea technology development, aiming to create a "digital ocean" that enhances marine decision-making and governance through advanced information technologies [5][17] - The report suggests focusing on marine engineering equipment manufacturing, marine equipment components, and marine observation instruments as key areas for investment [4][26]