O2とLi+の輸送特性を考慮したNafion被覆正極によるリチウム空気電池の高出力化

抄録

Lithium-air batteries have attracted attention because of their high theoretical energy density. However, due to the low solubility and diffusivity of oxygen in the electrolyte, oxygen transport to the cathode reaction site is limited. In this research, a thin layer of lithiated-Nafion was formed on the cathode and its discharge performance was evaluated. Thinning the Nafion layer reduces oxygen transport resistance; however, the impact on lithium transport resistance needs to be considered. In order to to obtain a cathode structure that achieves high power output, discharge tests and one-dimensional model analysis were conducted.