| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylindrical battery in which heat of the battery at the time of overcharging is suppressed and which is highly safe. SOLUTION: This is a non-aqueous electrolyte battery that is constructed of a wound electrode body 4 in which a positive electrode 1 and a negative electrode 2 are wound through a separator 3 and has a center pin 6 at the winding center and a battery can 5 in which a safety valve device 11 and a terminal plate 10 are caulked through a gasket 14. When the inner diameter of the battery can 5 is made A, the maximum value of the diameter of the wound electrode body 4 is made B, and the minimum value is made C, the following formula is satisfied; 0.950A≤(B+C)/2≤0.990A. COPYRIGHT: (C)2004,JPO |
