Cap assembly and secondary battery using the same

摘要

A cap assembly to prevent the leakage of an electrolyte and a secondary battery including the cap assembly. The cap assembly comprises a cap plate having an electrolyte inlet is formed, and an electrolyte inlet switch board to selectively cover the electrolyte inlet. The electrolyte inlet switch board can be shaped as a rectangular prism, can have a corrugated surface, or can have corrugations formed on two opposing surfaces.