CN211182459U - Battery module and insulating piece - Google Patents
Battery module and insulating piece Download PDFInfo
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- CN211182459U CN211182459U CN201922287755.5U CN201922287755U CN211182459U CN 211182459 U CN211182459 U CN 211182459U CN 201922287755 U CN201922287755 U CN 201922287755U CN 211182459 U CN211182459 U CN 211182459U
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- glue
- insulating
- insulating sheet
- insulation layer
- cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The disclosure relates to the technical field of batteries, in particular to a battery module and an insulating sheet. The insulating piece is used for establishing between two electric cores, the insulating piece includes the heat insulation layer, the heat insulation layer is used for preventing any electric core expands the heat output to another electric core when thermal runaway in two electric cores. Improve the adiabatic ability of insulating piece, prevented effectively that electric core thermal diffusion when thermal runaway, solve the battery module when taking place thermal runaway, the problem of thermal diffusion.
Description
Technical Field
The disclosure relates to the technical field of batteries, in particular to a battery module and an insulating sheet.
Background
The safety problem of new energy automobiles is always a focus of close attention of society and enterprises. The focus is that the power battery system of the new energy automobile has potential safety hazard, the problem of thermal runaway of the battery module is solved, and the problem of major breakthrough of a host factory and a battery factory in recent years is also solved.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, this disclosure provides a battery module and insulating piece, aims at solving the battery module when taking place the thermal runaway, the problem of heat diffusion.
The technical scheme provided by the disclosure is as follows:
the utility model provides an insulating piece, the insulating piece is used for establishing between two electric cores, the insulating piece includes the heat insulation layer, the heat insulation layer is used for preventing any electric core expands the heat dissipation to another electric core when thermal runaway in two electric cores.
Furthermore, the insulating sheet has a first side and a second side, the first side is laminated with one of the two battery cells, and the second side is laminated with the other of the two battery cells.
Further, the thermal insulation layer is a ceramic fiber layer.
Further, the heat insulating layer includes a first heat insulating layer provided on the first side surface and a second heat insulating layer provided on the second side surface.
Further, the insulating piece is provided with an annular outer frame, and the heat insulating layer is arranged in the outer frame.
Further, the first side is provided with a first rubberizing area, the first rubberizing area is provided with a first adhesive piece, the second side is provided with a second rubberizing area, the second rubberizing area is provided with a second adhesive piece, and the insulating piece is respectively attached to the two battery cores through the first adhesive piece and the second adhesive piece.
Furthermore, the first rubberizing area is an area with a first preset width arranged inwards along the edge of the first side surface, and the second rubberizing area is an area with a second preset width arranged inwards along the edge of the second side surface.
Further, the first side face is provided with a first glue coating area, first glue is coated on the first glue coating area, the second side face is provided with a second glue coating area, second glue is coated on the second glue coating area, and the insulating sheet is respectively adhered to the two battery cores through the first glue and the second glue.
Furthermore, a plurality of first glue overflow holes are formed in the first glue coating area, a plurality of second glue overflow holes are formed in the second glue coating area, and the plurality of first glue overflow holes and the plurality of second glue overflow holes are respectively matched with the positioning pieces of the two battery cells.
The present disclosure further provides a battery module, which includes at least two battery cells and an insulating sheet disposed between the two battery cells.
According to the technical scheme, the beneficial effects of the disclosure are as follows: locate the insulating piece between two electric cores, the insulating piece includes the heat insulation layer, improves the adiabatic ability of insulating piece, has prevented electric core heat diffusion when the thermal runaway effectively, solves the battery module when taking place the thermal runaway, the problem of heat diffusion.
Drawings
Fig. 1 is a schematic structural diagram of an insulating sheet provided by applying an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an insulating sheet provided by applying another embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an insulating sheet provided by applying another embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a battery module provided by an embodiment of the disclosure;
fig. 5 is a schematic structural diagram of a battery module according to another embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.
As shown in fig. 1, an insulating sheet 1 is provided in the embodiment of the present disclosure, where the insulating sheet 1 is used to be disposed between two battery cells, one battery module includes a plurality of battery cells, and the insulating sheet 1 is disposed between every two battery cells.
Because the insulating ability of the existing insulating sheet is low, it is impossible to prevent the heat diffusion of the battery cell during thermal runaway, in this embodiment, the insulating sheet 1 includes a heat insulating layer 11, the heat insulating layer 11 is formed by a heat insulating material, and the heat insulating layer 11 is used to prevent the heat diffusion of any one of the two battery cells to the other battery cell during thermal runaway.
Locate insulating piece 1 between two electric cores, insulating piece 1 includes heat insulation layer 11, improves the adiabatic ability of insulating piece 1, has prevented electric core heat diffusion when thermal runaway effectively, solves the battery module when taking place thermal runaway, the problem of heat diffusion.
In this embodiment, the insulating sheet 1 has a first side surface 12 and a second side surface, where the first side surface 12 is attached to one of the two battery cells, and the second side surface is attached to the other of the two battery cells. Specifically, the insulating sheet 1 has a rectangular shape.
When the insulating sheet 1 is disposed between two battery cells, the first side surface 12 is attached to a side surface of one battery cell, and the second side surface is attached to a side surface of another battery cell.
In the present embodiment, the heat insulating layer 11 is a ceramic fiber layer.
In some embodiments, an insulation layer 11 is provided at the first side 12. The first side 12 is provided with a heat-insulating layer 11, and the second side is not provided with a heat-insulating layer 11.
As shown in fig. 3, in some embodiments, the thermal insulation layer 11 includes a first thermal insulation layer 111 and a second thermal insulation layer 112, the first thermal insulation layer 111 being disposed on the first side 12 and the second thermal insulation layer 112 being disposed on the second side. Both the first side 12 and the second side are provided with an insulating layer 11, which is better insulating than if only the first side 12 were provided with an insulating layer 11.
In the present embodiment, the insulating sheet 1 includes an annular outer frame in which the heat insulating layer 11 is provided. The outer frame is filled with a heat insulating material, and thereafter, a heat insulating layer 11 is formed in the outer frame. The thickness of the insulating layer 11 is the same as that of the insulating sheet 1, i.e., both sides of the insulating layer 11 are in a plane with the first side 12 and the second side, respectively, so that the thickness of the insulating layer 11 is increased without increasing the thickness of the insulating sheet 1.
In order to increase the structural strength and stability between two electric cores, in this embodiment, the first side surface 12 is provided with a first adhesive area 121, the first adhesive area 121 is provided with a first adhesive member, the second side surface is provided with a second adhesive area, the second adhesive area is provided with a second adhesive member, and the insulating sheet 1 is respectively adhered to the two electric cores through the first adhesive member and the second adhesive member. And (3) adopting a mode of an adhesive piece to ensure that the insulation sheet 1 is attached to the battery cell.
Specifically, first adhesive member and second adhesive member are two-sided gum, and further, can select 3M fire prevention glue as two-sided gum, can improve adiabatic ability like this.
The first rubberized regions 121 may be on the insulating layer 11, or may not be on the insulating layer 11, on the insulating sheet 1 in regions where there is no insulating layer 11.
In this embodiment, the first rubberized regions 121 are regions arranged with a first preset width inwards along the edge of the first side surface 12, and the second rubberized regions are regions arranged with a second preset width inwards along the edge of the second side surface. The first preset width and the second preset width may be designed according to the size of the battery cell, for example, the range of the first preset width may be 1cm to 4cm, the range of the second preset width may be 1cm to 4cm, specifically, the first preset width is 3cm, and the second preset width is 3 cm.
The first rubberized region 121 is on a region of the insulating sheet 1 without the thermal insulation layer 11, and the first rubberized region 121 surrounds the thermal insulation layer 11, the thermal insulation layer 11 and the first rubberized region 121 cover the first side 12, and the first side 12 has no gap.
As shown in fig. 2, in some embodiments, the first side surface 12 is provided with a first glue area 123, a first glue is applied on the first glue area 123, the second side surface is provided with a second glue area, a second glue is applied on the second glue area, and the insulating sheet 1 is adhered to the two cells by the first glue and the second glue, respectively. And the insulation sheet 1 is attached to the battery cell in a glue mode.
Further, a plurality of first glue overflow holes 125 are formed in the first glue coating area 123, a plurality of second glue overflow holes are formed in the second glue coating area, and the plurality of first glue overflow holes 125 and the plurality of second glue overflow holes are respectively matched with the positioning parts of the two battery cells. The first glue overflow hole 125 can prevent the first glue on the first glue application area 123 from overflowing, the second glue overflow hole can prevent the second glue on the second glue application area from overflowing, and the first glue overflow hole 125 and the second glue overflow hole have a positioning function.
Specifically, the first glue overflow hole 125 and the second glue overflow hole are communicated with each other, that is, the first glue overflow hole 125 and the second glue overflow hole are through holes.
As shown in fig. 4 and fig. 5, an embodiment of the present disclosure further provides a battery module 2, which includes at least two battery cells 21 and the insulating sheet 1 disposed between the two battery cells 21.
The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. The utility model provides an insulating piece, its characterized in that, the insulating piece is used for establishing between two electric cores, the insulating piece includes the heat insulation layer, the heat insulation layer is used for preventing any electric core expands the heat output to another electric core when thermal runaway in two electric cores.
2. The insulating sheet of claim 1, having a first side and a second side, the first side being attached to one of the two cells and the second side being attached to the other of the two cells.
3. The insulating sheet according to claim 1, wherein the insulating layer is a ceramic fiber layer.
4. The insulating sheet of claim 2, wherein the thermal insulation layers comprise a first thermal insulation layer disposed on the first side and a second thermal insulation layer disposed on the second side.
5. The insulating sheet according to claim 2, wherein the insulating sheet comprises an annular outer frame, the insulating layer being provided in the outer frame.
6. The insulation sheet according to claim 2 or 5, wherein the first side surface is provided with a first adhesive region, the first adhesive region is provided with a first adhesive member, the second side surface is provided with a second adhesive region, the second adhesive region is provided with a second adhesive member, and the insulation sheet is adhered to the two battery cells through the first adhesive member and the second adhesive member, respectively.
7. The insulating sheet of claim 6, wherein the first rubberized regions are regions of a first predetermined width disposed inwardly along an edge of the first side surface, and the second rubberized regions are regions of a second predetermined width disposed inwardly along an edge of the second side surface.
8. The insulating sheet according to claim 2 or 5, wherein the first side surface is provided with a first glue area, a first glue is coated on the first glue area, the second side surface is provided with a second glue area, a second glue is coated on the second glue area, and the insulating sheet is adhered to the two battery cells through the first glue and the second glue, respectively.
9. The insulation sheet of claim 8, wherein a plurality of first glue overflow holes are formed on the first glue spreading region, and a plurality of second glue overflow holes are formed on the second glue spreading region, and the plurality of first glue overflow holes and the plurality of second glue overflow holes are respectively matched with the positioning members of the two battery cells.
10. A battery module comprising at least two cells and the insulating sheet of any one of claims 1-9 disposed between the two cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287755.5U CN211182459U (en) | 2019-12-18 | 2019-12-18 | Battery module and insulating piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922287755.5U CN211182459U (en) | 2019-12-18 | 2019-12-18 | Battery module and insulating piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211182459U true CN211182459U (en) | 2020-08-04 |
Family
ID=71808431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922287755.5U Active CN211182459U (en) | 2019-12-18 | 2019-12-18 | Battery module and insulating piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211182459U (en) |
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2019
- 2019-12-18 CN CN201922287755.5U patent/CN211182459U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |