| 摘要 |
<p>PURPOSE: A secondary battery is provided to effectively dissipate the heat while not obstructing an assembly property of the secondary battery. CONSTITUTION: A secondary battery(100) includes: an electrode assembly wound by interposing a separator between a positive electrode and a negative electrode; an electrode tab electrically connecting the electrode assembly to the outside; and a case(110) which accommodates the electrode assembly thereinside and seals the electrode tab to be exposed to the outside. An unevenness(G) is formed in a direction parallel to the ground(1).</p> |
