| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery with excellent storing characteristics, which makes less self-discharge even though it is stored in the charged condition. SOLUTION: A non-aqueous secondary battery concerned is composed of a sheet-form positive electrode containing a positive electrode active material which is oxide of lithium-containing transition metal, a sheet-form negative electrode containing a negative electrode material capable of occluding and releasing lithium, a separator, and non-aqueous electrolyte containing salt of lithium metal. The marginal part 1-10mm of the mixed agent of this positive and/or negative electrode sheet is covered with a lithium ion non-permeative material. |
