| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylindrical non-aqueous electrolytic liquid primary cell superior in load characteristics and large in capacity. SOLUTION: This is a cylindrical non-aqueous electrolytic liquid primary cell having an electrode wound-around body winding a sheet-shape positive electrode and a sheet-shape negative electrode through a separator in a cylindrical outer package can. The sheet-shape positive electrode has a positive electrode mixture containing a positive electrode active material, a conductive assistant, and a binder formed on a current collector, and a plurality of recessed parts are formed on the surface on the opposite side to the current collector of the positive electrode mixture layer. It is preferable that the recessed parts are formed by embossing. COPYRIGHT: (C)2008,JPO&INPIT
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