Overview
- The quasi-solid-state electrolyte reached ionic conductivity of 0.46 mS cm−1 and a Ca2+ transport number greater than 0.53 at room temperature.
- A full calcium-ion cell delivered 155.9 mAh g−1 at 0.15 A g−1 and retained over 74.6% capacity after 1,000 cycles at 1 A g−1.
- Experimental measurements and simulations show rapid Ca2+ movement along aligned carbonyl groups inside ordered COF pores.
- The study was led by Prof. Yoonseob Kim at HKUST with collaborators at Shanghai Jiao Tong University, with results reported by Zhuoyu Yin et al.
- The team presents the technique as a potential lithium-ion alternative, though the findings remain at laboratory scale and require further development.