Rapid technological revolution produces a wide range of convenient tools, while, in particular, the production and consumption of batteries lead to various issues including environmental pollution. Although efforts to solve such problems increase interest in green and dissolvable batteries, their short service life is still recognized as a major obstacle due to limited options of materials. Here, we propose materials and system designs for eco-friendly and biodegradable magnesium alloy–tungsten (AZ31–W) batteries that offer long-term stability with enhanced corrosion resistance. Materials and electrochemical inspections confirm the superior electrochemical tolerance and stable, reliable potentials of the AZ31 anode and W cathode. The assembly of an individual cell into a commercially available pouch battery yields a high capacity of ∼430 mA h g⁻¹, suitable for high-energy applications. The integration of alginate-based soft, elastic electrolytes with the electrodes enables the achievement of completely eco-resorbable solid-state batteries that maintain performance under diverse physical deformations. The results suggest potential for biomedical and eco-friendly applications where commercial batteries pose risks to the environment or human body.

中文翻译：

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耐用、灵活且完全可生物吸收的 AZ31 钨电池，用于瞬态、可生物降解的电子产品


快速的技术革命产生了各种方便的工具，但特别是电池的生产和消费导致了包括环境污染在内的各种问题。尽管解决这些问题的努力增加了人们对绿色和可溶解电池的兴趣，但由于材料选择有限，其较短的使用寿命仍被认为是一个主要障碍。在这里，我们提出了环保和可生物降解的镁合金-钨 （AZ31–W） 电池的材料和系统设计，这些电池具有长期稳定性和增强的耐腐蚀性。材料和电化学检查证实了 AZ31 阳极和 W 阴极卓越的电化学耐受性和稳定、可靠的电位。将单个电池组装到市售的软包电池中可产生 ∼430 mA h g⁻¹ 的高容量，适用于高能量应用。海藻酸盐基柔软、弹性电解质与电极的集成实现了完全生态可吸收的固态电池，可在各种物理变形下保持性能。结果表明，商用电池对环境或人体构成风险的生物医学和环保应用具有潜力。