Battery module
The present disclosure provides a battery module, a manufacturing method of the battery module and a vehicle, the battery module comprises batteries and a thermistor. Each battery comprises a cap plate, a positive electrode terminal, a negative electrode terminal and a vent, the vent is positioned between the positive electrode terminal and the negative electrode terminal. The cap plate comprises a first boundary away from the positive electrode terminal, and the vent comprises a third boundary close to the positive electrode terminal. The thermistor is positioned between the first boundary and the third boundary. Because the positive electrode terminal and the location around the positive electrode terminal are high in temperature, therefore when the thermistor collects the temperature of the battery, it greatly reduces the deviation between the collected temperature obtained by the thermistor and the actual temperature of the battery, thereby improving the accuracy of temperature sampling.
1. A battery module, comprising a plurality of batteries arranged side by side in a longitudinal direction and a thermistor used for collecting the temperature of each of the batteries;
each of the batteries comprising a cap plate, a positive electrode terminal, a negative electrode terminal and a vent, the positive electrode terminal and the negative electrode terminal being spaced apart from each other and provided on the cap plate, and the vent being provided on the cap plate and positioned between the positive electrode terminal and the negative electrode terminal;
the cap plate comprising a first boundary away from the positive electrode terminal in a transversal direction, and the vent comprising a third boundary close to the positive electrode terminal in the transversal direction;
the thermistor being provided on the cap plate and positioned between the first boundary of the cap plate and the third boundary of the vent.
2. The battery module according to claim 1 , wherein
the negative electrode terminal comprises a fifth boundary away from the vent in the transversal direction;
the thermistor is positioned between the fifth boundary of the negative electrode terminal and the third boundary of the vent.
3. The battery module according to claim 2 , wherein
the negative electrode terminal further comprises a sixth boundary close to the vent in the transversal direction;
the thermistor is positioned between the sixth boundary of the negative electrode terminal and the third boundary of the vent.
4. The battery module according to claim 3 , wherein the thermistor is positioned between the fifth boundary and the sixth boundary of the negative electrode terminal.
5. The battery module according to claim 1 , wherein
the vent further comprises a fourth boundary away from the positive electrode terminal;
the thermistor is positioned between the fourth boundary and the third boundary of the vent.
6. The battery module according to claim 1 , wherein
the battery module further comprises a circuit board provided above the cap plates of the plurality of batteries and positioned between the positive electrode terminal and the negative electrode terminal;
the thermistor is connected to the circuit board.
7. The battery module according to claim 6 , wherein the battery module further comprises a conductive wire, one end of the conductive wire is connected to the circuit board, and the other end of the conductive wire is connected to the thermistor.
8. The battery module according to claim 1 , wherein each of the batteries further comprises:
an electrode assembly comprising a main body portion, a positive electrode tab protruding from the main body portion and a negative electrode tab protruding from the main body portion;
a case sealing the electrode assembly with the cap plate; a first adapter sheet connecting the positive electrode tab of the electrode assembly and the positive electrode terminal; and
the second adapter sheet connecting the negative electrode tab of the electrode assembly and the negative electrode terminal.
9. The battery module according to claim 8 , wherein the first adapter sheet is formed with a weak area.
10. The battery module according to claim 1 , wherein a thermal pad or a thermal adhesive is provided between the cap plate and the thermistor.
11. A manufacturing method of a battery module, comprising steps of:
providing a plurality of batteries, and each of the batteries comprising a cap plate, a positive electrode terminal, a negative electrode terminal and a vent, the positive electrode terminal and the negative electrode terminal being spaced apart from each other and provided on the cap plate, and the vent being provided on the cap plate and positioned between the positive electrode terminal and the negative electrode terminal, and the cap plate comprising a first boundary away from the positive electrode terminal in a transversal direction, and the vent comprising a third boundary close to the positive electrode terminal in the transversal direction;
making the plurality of batteries arranged side by side in a longitudinal direction;
providing a thermistor and making the thermistor positioned between the first boundary of the cap plate and the third boundary of the vent; and
making the thermistor fixed on the cap plate.
12. A vehicle, comprising a battery pack, and the battery pack comprising a battery module, wherein
the battery module comprises a plurality of batteries arranged side by side in a longitudinal direction and a thermistor used for collecting the temperature of each of the batteries;
each of the batteries comprises a cap plate, a positive electrode terminal, a negative electrode terminal and a vent, the positive electrode terminal and the negative electrode terminal are spaced apart from each other and provided on the cap plate, and the vent is provided on the cap plate and positioned between the positive electrode terminal and the negative electrode terminal;
the cap plate comprises a first boundary away from the positive electrode terminal in a transversal direction, and the vent comprises a third boundary close to the positive electrode terminal in the transversal direction;
the thermistor is provided on the cap plate and positioned between the first boundary of the cap plate and the third boundary of the vent.
13. The vehicle according to claim 12 , wherein
the negative electrode terminal comprises a fifth boundary away from the vent in the transversal direction;
the thermistor is positioned between the fifth boundary of the negative electrode terminal and the third boundary of the vent.
14. The vehicle according to claim 13 , wherein
the negative electrode terminal further comprises a sixth boundary close to the vent in the transversal direction;
the thermistor is positioned between the sixth boundary of the negative electrode terminal and the third boundary of the vent.
15. The vehicle according to claim 14 , wherein the thermistor is positioned between the fifth boundary and the sixth boundary of the negative electrode terminal.
16. The vehicle according to claim 12 , wherein
the vent further comprises a fourth boundary away from the positive electrode terminal;
the thermistor is positioned between the fourth boundary and the third boundary of the vent.
17. The vehicle according to claim 12 , wherein
the battery module further comprises a circuit board provided above the cap plates of the plurality of batteries and positioned between the positive electrode terminal and the negative electrode terminal;
the thermistor is connected to the circuit board;
a conductive wire, one end of the conductive wire is connected to the circuit board, and the other end of the conductive wire is connected to the thermistor.
18. The vehicle according to claim 12 , wherein each of the batteries further comprises:
an electrode assembly comprising a main body portion, a positive electrode tab protruding from the main body portion and a negative electrode tab protruding from the main body portion;
a case sealing the electrode assembly with the cap plate; a first adapter sheet connecting the positive electrode tab of the electrode assembly and the positive electrode terminal; and
the second adapter sheet connecting the negative electrode tab of the electrode assembly and the negative electrode terminal.
19. The vehicle according to claim 18 , wherein the first adapter sheet is formed with a weak area.
20. The vehicle according to claim 12 , wherein a thermal pad or a thermal adhesive is provided between the cap plate and the thermistor.