| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid electrolyte capable of attaining both the separator strength and reduction in the interface resistance, and properly reduces the interface resistance between the solid electrolyte and an electrode layer, despite superior separator strength of the solid electrolyte, and to provide a lithium ion secondary battery having superior output characteristics (retention rate) and durability (number of charging and discharging cycles), using the solid electrolyte. <P>SOLUTION: The solid electrolyte includes the electrode layer and lamination of three layers or more, and at least one layer other than a layer contacting the electrode layer from among the lamination of three layers or more that contains inorganic oxide fine particles having an average particle diameter 1 μm or more, and retains ionic liquid. <P>COPYRIGHT: (C)2011,JPO&INPIT |
