Xu Tao, Li Mengjiao, Luo Zipeng, Ye Longzeng, Tong Yurun, Zhang Jing, Hu Enlai, Chen Zhongwei
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, People's Republic of China.
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua 321004, People's Republic of China.
J Colloid Interface Sci. 2024 Dec;675:883-892. doi: 10.1016/j.jcis.2024.07.065. Epub 2024 Jul 8.
The construction of solid-state electrolytes for flexible zinc-air batteries is extremely challenging. A flexible and highly conductive solid electrolyte designed with a "seaweed structure" is reported in this work. Sodium alginate serves as the backbone to form a robust network structure, and the grafted quaternary ammonium groups provide channels for rapid ion transport, achieving excellent flexibility and hydroxide conductivity. The conductivity of the modified electrolyte membrane (QASA) is 5.23 × 10 S cm at room temperature and reaches up to 8.51 × 10 S cm at 75 °C. In the QASA based battery, bending at any angle is realized, and the power density is up to 57.28 mW cm. This work provides a new way to prepare high conductivity, green solid-state zinc-air batteries, and opens up a research line of thought for flexible energy storage materials.
用于柔性锌空气电池的固态电解质的构建极具挑战性。这项工作报道了一种设计为“海藻结构”的柔性且高导电的固态电解质。海藻酸钠作为骨架形成坚固的网络结构，接枝的季铵基团提供了快速离子传输通道，实现了优异的柔韧性和氢氧化物导电性。改性电解质膜（QASA）在室温下的电导率为5.23×10⁻³ S/cm，在75°C时高达8.51×10⁻³ S/cm。在基于QASA的电池中，可实现任意角度的弯曲，功率密度高达57.28 mW/cm²。这项工作为制备高导电性、绿色固态锌空气电池提供了一种新方法，并为柔性储能材料开辟了一条研究思路。
