| abstract |
The high output and high energy density, excellent load-discharge cycle characteristics, and the potential change of the positive electrode active material layer coated on both sides of the non-porous positive electrode current collector without lowering the electron conductivity in the positive electrode containing the lithium compound In the non-aqueous lithium power storage device using a non-porous positive electrode current collector and a non-porous negative electrode current collector, the gas produced by excessive decomposition of the lithium compound remaining in the positive electrode under high temperature and high voltage is adjusted. It is possible to alleviate the uneven distribution of ions in the electrolyte in the electrolyte solution, to suppress the increase in resistance, to suppress the decomposition of the lithium compound in the positive electrode under high voltage, to suppress the generation of gas, and to reduce the average particle diameter of the lithium compound in the power storage element. When set to 1 , 0.1 µm ≤ X 1 ≤ 10.0 µm, and the average particle diameter of the positive electrode active material is Y 1 In this case, 2.0 µm ≤ Y 1 ≤ 20.0 µm, and X 1 <Y 1 . |