[1]
Technical Field
[2]
The invention relates to a technical field of an energy storage device, in particular to a battery module and a battery pack.
[3]
Background Art
[4]
The new energy sectors to the power battery, the energy density of the energy storage battery with increasingly higher requirements, and with ternary large cell, safety design module and lightweight battery pack application gradually extended, power the safety of the battery can become the focus of attention of the focus.
[5]
Wherein the battery module of the phenomenon of thermal runaway of the battery due to the die set is not one of the major causes of the safety factor, when the battery module in a battery of the monomer caused by overheating of the gas generates a large amount of the electrolyte, the battery cell of the battery ignition or explosion may occur, and, if not timely control, the battery will continue to heat generated by the monomer to the other battery cell propagation, the whole battery module thermal runaway, thermal runaway will give rise to serious safety accidents, endanger the lives and property, therefore, thermal runaway is the issue of battery manufacturers an important subject to be solved urgently.
[6]
Content of the utility model
[7]
The invention provides a battery module and a battery pack, the battery module can reduce the probability of occurrence of thermal runaway phenomenon.
[8]
The application of the 1st aspect provides a battery module, comprising:
[9]
The frame; and
[10]
A plurality of battery cells,
[11]
Wherein each of the battery of monomer is arranged fixedly in the frame,
[12]
Said frame comprises a baffle 1st and 2nd baffle, the baffle and the 1st 2nd baffle along the height direction of the battery cell of the battery toward the one side of the each other extends and leave the interval,
[13]
The separator the 1st 2nd partition plate is disposed adjacent the battery between the monomers, the 1st and 2nd in the separator plate by at least one of the thermal expansion material.
[14]
Can be selected, the frame having two ends, respectively for the 1st and 2nd framework of the framework, the framework of the 1st and the 2nd frame along the height direction of the battery cell is relative and independent is set, the 1st frame includes the baffle 1st, 2nd the 2nd frame includes the baffle.
[15]
Can be selected, along the height direction of the battery cell, the frame and the 2nd 1st interval is left between the framework.
[16]
Can be selected, the 1st frame is an integral structure, the 1st framework made by the thermal expansion material.
[17]
Can be selected, the 2nd frame is an integral structure, the 2nd framework made by the thermal expansion material.
[18]
Can be selected, in the frame, the 1st 2nd baffle in the separator will be at least one of the space within the frame into the receiving cavity, each of said holding cavity placed one of the battery cells,
[19]
The receiving cavity have arranged opposite to the inner wall of the inner wall of the 1st and 2nd, the battery monomer clamping is fixed to the inner wall of the inner wall of the 1st and the 2nd between.
[20]
Can be selected, also comprising adhesive, at least one of said battery cell is fixed by adhesive bonding within the framework.
[21]
Can be selected, the 2nd 1st the separator of the baffle are a plurality number, and should be set to one by one, of any two adjacent the battery between the monomers of the baffle are provided with the 1st and the 2nd baffle.
[22]
Can be selected, the battery monomer comprises a explosion-proof valve, said 1st on the frame to the explosion-proof valve is the position of the through hole is opened.
[23]
The application of the in the 2nd provides a battery pack, which includes the above-mentioned any one of the battery module.
[24]
The present invention provides the technical scheme can achieve the following beneficial effects:
[25]
The invention provides a battery module, wherein the frame includes a 1st and 2nd baffle plate, in the height direction of the battery cell, the baffle and the 1st 2nd partition proximate to each other extending from one side of and leave the interval, 1st and 2nd baffle in at least one of the baffle by the thermal expansion material, when one of the battery cell when the abnormal heat, thermal expansion material affected by the thermal expansion, and rapid filling to the adjacent monomer in the gap between the battery, therefore, hot air is obstructed, will not continue to spread, reduces the battery module in the probability of thermal runaway.
[26]
It should be understood that, the above general description of the details of the latter article and described is only illustrative, not limiting the invention.
[27]
Description of drawings
[28]
Figure 1 is the schematic view of the application of the embodiment of the battery module;
[29]
Figure 2 is the schematic view of the embodiment of the battery provided in the die set, 1st of the inside surface;
[30]
Figure 3 is the schematic view of the embodiment of the battery provided in the die set, 2nd frame;
[31]
Figure 4 is the schematic view of the embodiment of the battery provided in the die set, the outer surface of the 1st framework.
[32]
The Figure mark:
[33]
100 - Battery module;
[34]
102 - Frame;
[35]
102 A - 1st frame;
[36]
102 B - 2nd frame;
[37]
1022 - 1St baffle;
[38]
1024 - 2Nd baffle;
[39]
1026 - Receiving cavity;
[40]
1026 A - 1st inner wall;
[41]
1026 B - 2nd inner wall;
[42]
1028 - Through hole;
[43]
104 - To the battery cell.
[44]
Here in the specification of the Figure are incorporated into and form a part of this specification, are shown in accordance with an embodiment of the application, and together with the description used for explaining the principle of the invention.
[45]
Mode of execution
[46]
Below through specific embodiments are combined with photos to the further detailed description of the application.
[47]
The invention provides a battery module, the battery module can reduce the probability of occurrence of thermal runaway, improve the safety of the battery module.
[48]
In particular, as shown in Figure 1, the battery module 100 includes a frame 102 and is fixed to the frame 102 in a plurality of the battery cell 104, a plurality of battery cell 104 can be connected in series or in parallel connection to a battery, the electric energy to be output to the outside.
[49]
As shown in Figure 2 and Figure 3, the frame 102 comprises a 1st baffle 1022 and 2nd baffle 1024, 1st baffle 1022 with the 2nd baffle 1024 is set up in the adjacent battery monomer 104 between, the baffle 1st 1022 with the 2nd baffle 1024 along the battery monomer 104 in a height direction (from the top cover pointing the direction of the bottom or the ground point to the top of the direction, Figure 1 in the Y direction) towards the proximate to each other extending from one side of, on the one hand and between the ends of the interva…