| 摘要 |
PROBLEM TO BE SOLVED: To prevent drop in yield in the insertion of a rolled electrode body into a battery case without use of a heat-shrinkable tube even if the number of rolling times is increased in order to increase the capacity of a battery. SOLUTION: A belt-shaped positive electrode 2 and a belt-shaped negative electrode 1 are rolled through a separator, the rolling end is fixed with an adhesive tape 10 in which an adhesive layer is formed on a tape base material to form a rolled electrode body 15, and the rolled electrode body 15 is housed in a battery can 5. As the tape base material of the adhesive tape, a tape having a coefficient of dynamic friction of 0.40 or less is used. |
