SECONDARY BATTERY INCLUDING ELECTRODE ASSEMBLY LATERALLY INSERTED INTO CASE, AND MANUFACTURING METHOD THEREOF

A secondary battery includes: a case having an open side surface; an electrode assembly inserted into the case through the open side surface, the electrode assembly including a bent electrode tab; a terminal electrically connected to the electrode tab of the electrode assembly and exposed to an outside of the case; a cover covering the open side surface of the case; an electrode plate insulating member electrically insulating an electrode plate of the electrode assembly from the terminal; and a bent portion insulating member electrically insulating an inner surface of the cover from the bent portion of the electrode tab.