Battery pack having heat dissipating member
Disclosed is a battery pack with enhanced cooling efficiency. The battery pack includes a plurality of battery cells respectively having electrode terminals formed thereon; a bus bar plate having a connection portion protrusively extending toward the electrode terminal to contact the electrode terminal to be electrically connected to the electrode terminal; and a heat dissipating member between the bus bar plate and the battery cell and having a connection hole into which the connection portion of the bus bar plate is inserted.
1. A battery pack, comprising:
a plurality of battery cells each having electrode terminals formed thereon;
a bus bar plate having a connection portion protrusively extending toward a first electrode terminal of a first battery cell of the battery cells to contact the first electrode terminal to be electrically connected to the first electrode terminal; and
a heat dissipating member between the bus bar plate and the first battery cell and having a connection hole through which the connection portion of the bus bar plate is connected to the first terminal,
wherein the heat dissipating member has a circular pad form, and
wherein the heat dissipating member includes:
a heat-resisting portion adjacent to the connection hole and having a heat-resisting material; and
a heat-absorbing portion around the heat-resisting portion and having a heat-absorbing material.
2. The battery pack according to claim 1 ,
wherein the first battery cell includes a cylindrical battery cell having the first electrode terminal and a second electrode terminal with different polarities respectively formed at both end surfaces thereof, and
wherein the heat dissipating member is provided in plural, and the plurality of heat dissipating members are respectively located at both ends of the battery cell at which the first electrode terminal and the second electrode terminal are provided.
3. The battery pack according to claim 2 ,
wherein the bus bar plate includes a heat dissipating portion extending outward from an outer circumference of the connection portion to face an outer surface of the heat dissipating member.
4. The battery pack according to claim 1 , wherein the heat-resisting portion has a circular pad form, and the heat-absorbing portion has a circular pad form.
5. The battery pack according to claim 4 ,
wherein the heat dissipating member further includes an extending portion extending inward from an outer circumference of the circular pad form along an outer surface of the cylindrical battery cell.
6. The battery pack according to claim 3 ,
wherein the battery pack further comprises a protective circuit module,
wherein the protective circuit module includes:
a printed circuit board on which a conductive wire pattern is disposed; and
a voltage sensing unit having a conductive wire to measure a voltage of the first battery cell, and
wherein the bus bar plate includes a sensing portion electrically connected to the conductive wire of the voltage sensing unit and protrusively extending outward from a portion of an outer circumference of the heat dissipating portion.
7. The battery pack according to claim 1 ,
wherein the connection portion has a slit elongated in one direction.
8. The battery pack according to claim 1 , further comprising:
an insulating pad, including an electrically insulating material, in close contact with an outer surface of the bus bar plate.
9. An electronic device, comprising the battery pack according to claim 1 .
10. A vehicle, comprising the battery pack according to claim 1 .