BATTERY CELL ASSEMBLY AND BATTERY MODULE FOR DETECTING SWELLING PHENOMENON THEREOF
A battery cell assembly includes a battery cell, a cartridge surrounding an edge of the battery cell and having insertion holes on opposite sides thereof, and a strap section disposed across one surface of the battery cell and having an elongated body part, fastening parts on opposite ends of the elongated body part, and a press pin protruding vertically from the elongated body part. A battery module capable of detecting swelling includes the plurality of battery cell assemblies.
1 . A battery cell assembly comprising:
a battery cell;
a cartridge surrounding an edge of the battery cell and having insertion holes on opposite sides thereof; and
a strap section disposed across one surface of the battery cell and having an elongated body part, fastening parts on opposite ends of the elongated body part and a press pin protruding vertically from the elongated body part.
2 . The battery cell assembly according to claim 1 , wherein the press pin has a socket part and a ball part, which are coupled to the elongated both part in a snap-fit manner.
3 . The battery cell assembly according to claim 2 , wherein the socket part has a recess in a lower surface thereof, and the ball part has a protrusion to be inserted into the recess of the socket part.
4 . The battery cell assembly according to claim 1 , wherein the elongated body part has a through hole at a middle portion thereof.
5 . The battery cell assembly according to claim 1 , wherein the press pin is positioned at a middle portion of the elongated body part.
6 . The battery cell assembly according to claim 1 , wherein the fastening part includes a first body portion having a downwardly-protruding wedge on a lower end thereof, and a second body portion fastening the first body portion to the elongated body part.
7 . The battery cell assembly according to claim 1 , wherein the elongated body part is made of an expandable and contractible material.
8 . The battery cell assembly according to claim 7 , wherein the elongated body part is made of rubber.
9 . A battery module capable of detecting swelling comprising:
a plurality of battery cell assemblies stacked in an electrically-connected manner, wherein each battery cell assembly includes a battery cell and a cartridge surrounding the battery cell;
a strap section disposed across one surface of the battery cell and having an elongated body part, fastening parts on opposite ends of the elongated body part, and a press pin protruding vertically from the elongated body part;
an upper cover arranged on one outermost battery cell assembly among the plurality of battery cell assemblies, and having a guide tube guiding the movement of the press pin;
a lower cover arranged on an opposite outermost battery cell assembly among the plurality of battery cell assemblies; and
an overcharge protector disposed on an upper surface of the upper cover.
10 . The battery module according to claim 9 , wherein the guide tube vertically protrudes from the upper cover to the overcharge protector.
11 . The battery module according to claim 9 , wherein the upper cover has a through hole, through which the guide tube is disposed.
12 . The battery module according to claim 9 , wherein the upper cover includes a seat for supporting and holding the overcharge protector.
13 . The battery module according to claim 12 , wherein the guide tube further include a seal on an inner circumference to shield the interior of the battery module.
14 . The battery module according to claim 13 , wherein the seal is formed from an elastic membrane material.
15 . The battery module according to claim 9 , wherein the plurality of battery cell assemblies, the upper cover, and the lower cover are fastened together by means of a fastening member.
16 . The battery module according to claim 9 , wherein the press pin is disposed under the guide tube.
17 . The battery module according to claim 9 , wherein the strap section is disposed on in outermost battery cell assembly.
18 . The battery module according to claim 9 , wherein the cartridge has insertion holes on opposite sides thereof.
19 . The battery module according to claim 9 , wherein the through hole and the guide tube of the upper cover, and the press pin are aligned in a line.