新型海水电池超长待机178天

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 the lifespan by 16 times compared to unprotected batteries [1][2]. Group 1: Technology Development - The technology 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 thick coating from inexpensive zinc acetylacetonate (ZA) material establishes a "dual defense" for the zinc anode [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 for marine ranching and deep-sea cages, and reducing reliance on diesel generators and freshwater for island power supply [2]. - The low cost and scalability of the ultrasonic spraying process lay a solid foundation for industrialization, potentially providing new solutions for marine energy supply [2].