Apparatus for charging and discharging battery cell comprising insulation mask

1. A battery cell charging and discharging apparatus configured to charge and discharge a battery cell which is sealed in a state in which an electrode assembly is embedded in a battery case, comprising:

a first die plate having a first charging pin that protrudes from the first die plate and is configured to be connected to a first electrode terminal of the battery cell by being in contact therewith during a charging and discharging process of the battery cell;

mask fixing portions that extend from the first die plate, wherein the mask fixing portions include a first end and a second end, and the first end of the mask fixing portions is mounted on the first die plate; and

an insulation mask of an electrically insulating material formed in a structure covering a remaining part of the battery cell excluding the first electrode terminal at a position corresponding to the first charging pin, wherein the insulation mask is coupled to the second end of the mask fixing portions.

2. The apparatus of claim 1 , wherein the battery cell comprises:

an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode;

the battery case of an electrically conductive material sealed in a state in which the electrode assembly is embedded in the battery case;

the first electrode terminal protruding from one end of the battery case; and

a second electrode terminal formed on a remaining portion of the battery case excluding the first electrode terminal.

3. The apparatus of claim 2 , wherein the first electrode terminal and the second electrode terminal are the negative electrode and the positive electrode, respectively.

4. The apparatus of claim 1 , wherein the insulation mask comprises a through hole perforated at a position corresponding to the first electrode terminal of the battery cell, and has a plate-type structure in which a remaining portion excluding the through hole covers the remaining part of a surface of the battery cell, from which the first electrode terminal protrudes.

5. The apparatus of claim 1 , wherein the insulation mask has a structure in which at least both sides thereof are fixed by the mask fixing portions so that the through hole is disposed between the first electrode terminal of the battery cell and the first charging pin of the first die plate.

6. The apparatus of claim 1 , wherein the mask fixing portions comprise a pair of clips.

7. The apparatus of claim 1 , wherein the mask fixing portions comprise a pair of vacuum suctions.

8. The apparatus of claim 1 , wherein the mask fixing portions are mounted on the first die plate in a structure capable of moving in both directions with the first charging pin as a center so that positions of the fixing portions may be adjusted based on a size of the insulation mask or battery cell.

9. The apparatus of claim 1 ,

wherein the first die plate is configured to be disposed toward the first electrode terminal of the battery cell during the charging and discharging process, and

the first charging pin and insulation mask of the first die plate are simultaneously disposed affixed to the first die plate toward the first electrode terminal of the battery cell.

10. The apparatus of claim 1 , wherein a thickness of the insulation mask is in a range of 10% to 90% of a protruding height of the first electrode terminal of the battery cell.

11. The apparatus of claim 1 , wherein, during the charging and discharging process, the insulation mask is configured to abut the surface of the battery cell from which the first electrode terminal protrudes when the first die plate is disposed, and the first electrode terminal of the battery cell protrudes through the through hole of the insulation mask and is connected to the first charging pin of the first die plate.

12. The apparatus of claim 1 , wherein the insulation mask is made of a polymeric resin.

13. The apparatus of claim 1 , wherein the battery cell charging and discharging apparatus further includes a second die plate on which a second charging pin configured to be electrically connected to the second electrode terminal of the battery cell by being contacted thereto is formed.

14. The apparatus of claim 13 , wherein the second charging pin is electrically connected to a portion of the battery case opposite to the first electrode terminal by being contacted thereto.

15. The apparatus of claim 13 , wherein the second die plate is configured to be disposed toward the second electrode terminal of the battery cell during the charging and discharging process of the battery cell.