NONAQUEOUS ALKALI METAL POWER STORAGE ELEMENT AND POSITIVE ELECTRODE COATING LIQUID

The purpose of one aspect of the present disclosure is to provide a nonaqueous alkali metal power storage element with which diffusion resistance of ions is reduced, while increase of electron transfer resistance at high temperature is suppressed. This nonaqueous alkali metal power storage element contains, in a positive electrode active material layer and a negative electrode active material layer, single-walled carbon nanotubes having a bundle structure that has an average fiber diameter of 5-20 nm. Another aspect of the present disclosure provides a positive electrode coating liquid that leads to provision of a nonaqueous alkali metal power storage element having high energy density and high output performance. The positive electrode coating liquid contains single-walled carbon nanotubes and has a specific viscosity.