| 摘要 |
PROBLEM TO BE SOLVED: To improve a battery characteristic such as a discharging load characteristic and a cycle characteristic. SOLUTION: This non-aqueous electrolyte secondary battery is provided with a positive electrode 4 formed by laminating a first positive electrode mix layer 10a containing the first positive electrode active material and a second positive electrode mix layer 10b containing the second positive electrode active material having a granular diameter larger than that of the first positive electrode active material in order on the main surface of a positive electrode collector 9, a negative electrode 5 formed of a negative electrode mix layer 12 containing the negative electrode active material, and the non-aqueous electrolyte 6 interposed between the positive electrode 4 and the negative electrode 5. With this structure, electrical resistance in the positive electrode 4 and the dope/de-dope efficiency of the lithium ion are improved, and the internal resistance of the non-aqueous electrolyte secondary battery 1 is restricted to improve the battery characteristic such as a discharging load characteristic and a cycle characteristic. |
