Secondary battery pack including insulative mounting member into which PCM is inserted in lateral direction

A protection circuit module (PCM) assembly mounted to a battery cell having an electrode assembly of a cathode/separator/anode structure disposed in a battery case together with an electrolyte in a sealed state, the battery case being provided at an upper end thereof with a first electrode terminal, a second electrode terminal and a pair of fastening grooves, the PCM assembly comprising:

• a PCM comprising a protection circuit board (PCB) having a protection circuit formed thereon, connection members A and B to be connected to the first electrode terminal and the second electrode terminal, respectively, and a safety element, in which the connection members and the safety element are connected to the protection circuit board;
• an insulative mounting member configured to have a structure in which the insulative mounting member is provided at one side thereof with an opening, in which a surface of the PCM facing an electrically insulative to cap is encapsulated by the insulative mounting member except for terminal portions, through which the PCM is inserted into the insulative mounting member in a lateral direction while an upper end and a lower end of the PCM are surrounded by the insulative mounting member;
• and
• the electrically insulative top cap mounted to an upper end of the battery cell while the insulative mounting member is disposed in the top cap, the top cap being provided with through holes communicating with the fastening grooves, wherein
• fastening members are coupled into the fastening grooves of the battery cell through the through holes of the top cap in a state in which the insulative mounting member, in which the PCM is fitted, and the top cap are loaded on the upper end of the battery cell.