| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery capable of preventing deterioration of battery output and suppressing shortage of electrolytic solution. <P>SOLUTION: The non-aqueous electrolyte secondary battery has a power generation element having a unit battery layer in which a negative electrode forming a negative electrode active material layer containing a negative electrode active material on the surface of a current collector including a conductive layer 25, an electrolyte layer containing a nonaqueous electrolyte, and a positive electrode forming a positive electrode active material layer containing a positive electrode active material on the surface of a current collector including the conductive layer 25 are laminated in order. At least one of the current collectors included in the power generation element is an electrolytic solution retaining current collector which further includes an electrolytic solution retaining portion 26 for retaining the electrolytic solution. Furthermore, at least one of the conductive layers 25 has holes 29 in which the electrolytic solution can penetrate in lamination direction of the current collectors in the conductive substrate 28. <P>COPYRIGHT: (C)2010,JPO&INPIT |
