| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the lifetime property and reliability of a lithium ion secondary cell. <P>SOLUTION: A power generation element 1 is formed with a belt-like anode 1b formed of a first plied timber layer 21 on both sides of a first collector 20, a belt-like cathode 1a with a second plied timber layer 11 formed on both sides of a second collector 10 and a belt-like separator 1c arranged so that the cathode 1a and the anode 1b do not contact each other onto both sides of the anode 1b or both sides the cathode 1a. In a lithium ion secondary cell having a structure winding the power generation element 1 or laminating a plurality of the power generation elements 1, both two of the first plied timber layers 21 on both sides of the first collector 20 or two of the second plied timber layers 11 on both sides of the second collector 10 are covered with a separator 1c from its one end part A to the other end part B, and furthermore, both of them are adhered with the separator 1c from its one end part A to the other end part B. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
