CN217239700U - Battery cell and battery pack device comprising same - Google Patents
Battery cell and battery pack device comprising same Download PDFInfo
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- CN217239700U CN217239700U CN202220986429.2U CN202220986429U CN217239700U CN 217239700 U CN217239700 U CN 217239700U CN 202220986429 U CN202220986429 U CN 202220986429U CN 217239700 U CN217239700 U CN 217239700U
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- battery pack
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack device, which comprises a shell and at least one battery pack; the battery pack is arranged in the shell; the battery pack comprises a plurality of battery cells which are arranged in order; the battery cell comprises a base body, a positive pole column, a negative pole column and a pressure release valve, wherein the positive pole column and the negative pole column are arranged at the same side, and the pole column and the pressure release valve are arranged at opposite sides; a plurality of explosion-proof valves arranged at intervals are arranged on one side wall of the shell and penetrate through the side wall to extend into the shell; the pressure release valves on the battery cell are arranged on the same side and form an exhaust channel together with the explosion-proof valve; the exhaust channel is not communicated with the pole. The utility model discloses be provided with explosion-proof valve, relief valve, positive negative pole post in battery package for the device is not only energy density high, can not lead to the fact the damage to the positive negative pole post moreover.
Description
Technical Field
The utility model relates to a battery technology field specifically is an electricity core and including battery package device of this electricity core.
Background
With the rapid development of the new energy automobile market, the requirements on the energy and the safety of the battery pack are higher and higher, and on the premise that enough energy meets the endurance mileage, the safety of the battery system is ensured to be more and more emphasized.
At present, the main forms of the square-shell battery cell are two forms of an identical-side pole outlet pole and an opposite-side pole outlet pole, and a pressure release valve is arranged on one side of the pole; when thermal runaway occurs, the relief valve is opened, the high-low voltage system composed of the positive and negative poles is damaged by the two types of the battery cores, so that thermal runaway of other battery cores is possibly caused, and the system cannot continuously monitor the state of the battery cores after the high-low voltage system is damaged; in addition, a certain space is reserved in the battery cell shell at one side with the pole due to the process requirements, and the space is usually not used for stacking the core/winding core, so that the energy of the battery cell cannot be extremely reduced.
If the publication number is CN215816252A, it discloses a battery system including a plurality of battery cells with pressure release valves arranged transversely, all the battery cells constitute at least two modules, an exhaust channel extending transversely is formed between two adjacent modules, and an explosion-proof valve is arranged at least at one side end of each exhaust channel; the battery cell is a battery cell with two side pole-out poles; the battery system is characterized in that two sides of a battery core used in the battery system are provided with polar columns, the pressure release valves are arranged in the transverse direction, the exhaust channel also extends in the transverse direction, and the two sides of the exhaust channel are provided with the polar columns; when thermal runaway occurs, the pressure release valve is opened, and the positive and negative poles are still damaged by the battery core in the form of the pressure release valve; in addition, the two sides of the battery cell need to reserve space to meet the process requirements of the pole, so that insufficient energy can be distributed in the battery system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a battery package device is provided that not only energy density is high, can not cause the damage to well negative pole post moreover.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
an electric core comprises a base body (211), a positive pole (213), a negative pole (214) and a pressure relief valve (216); a positive pole column (213) and a negative pole column (214) are arranged on one side of the base body (211) at intervals, and a pressure release valve (216) is arranged on the other side of the base body (211); the positive pole column (213) and the negative pole column (214) are arranged on the same side, and the pole column and the pressure relief valve (216) are arranged on opposite sides.
Has the advantages that: by arranging the positive pole column and the negative pole column at the same side, when the positive pole column and the negative pole column are assembled in the battery pack, the energy containing capacity of the battery pack can be effectively improved, and the energy density of the battery pack is further improved; through setting up utmost point post and relief valve to the offside, assemble this electric core to the battery package after, when taking place thermal runaway, the interior exhaust high temperature high-pressure gas of relief valve can not lead to the fact the damage to positive negative pole post.
The utility model also discloses a battery pack device comprising the battery cell of the technical proposal, which comprises a shell (1) and at least one battery pack (2); the battery pack (2) is arranged in the shell (1); the battery pack (2) comprises a plurality of neatly arranged battery cells (21); a plurality of explosion-proof valves (13) arranged at intervals are arranged on one side wall of the shell (1), and the explosion-proof valves (13) penetrate through the side wall and extend into the shell; the pressure relief valve (216) on the battery cell (21) is arranged on the same side and forms an exhaust channel together with the explosion-proof valve (13); the exhaust channel is not communicated with the pole.
Has the advantages that: through the arrangement that the exhaust channel is formed between the explosion-proof valve and the pressure release valve and the exhaust channel is not communicated with the pole, when thermal runaway occurs, high-temperature and high-pressure gas in the exhaust channel cannot damage the positive pole and the negative pole, and the thermal runaway spreading can be better prevented; through setting up anodal post and negative pole post on a plurality of electric cores in one side, can set up more electric cores in the casing, and then effectively improve the energy holding capacity of battery package.
Further, the battery pack (2) is provided with one; the battery pack (2) comprises a plurality of transversely arranged battery cells (21); the pressure release valve (216) and the explosion-proof valve (13) are arranged on the same side, and the pole is arranged at the position opposite to the explosion-proof valve (13).
Further, the battery pack (2) is provided with one; the battery pack (2) comprises a plurality of vertically arranged battery cells (21), the pressure release valve (216) and the explosion-proof valve (13) are arranged on the side of the separator, the pole and the explosion-proof valve (13) are arranged on the side of the separator, and a first partition plate (15) is fixed at a corner between the pole and the explosion-proof valve (13) on the shell (1).
Furthermore, two battery packs (2) are arranged, and the two battery packs (2) are arranged in a mirror image manner; the battery pack (2) comprises a plurality of vertically arranged battery cells (21), pressure relief valves (216) of the two battery packs (2) are both arranged inwards, and the pressure relief valves (216) and the explosion-proof valve (13) are arranged at intervals; the terminal post and the explosion-proof valve (13) are arranged at the isolating side, and first partition plates (15) are fixed at corners between the terminal post and the explosion-proof valve (13) on the shell (1).
Has the advantages that: through the setting of first baffle, can guarantee not to communicate with each other between exhaust passage and the utmost point post, and then guarantee that the interior high temperature high-pressure gas of exhaust passage can not cause the damage to positive negative pole post completely.
Further, casing (1) diapire inboard intermediate position department is fixed with second baffle (17), and two group battery (2) set up respectively in the both sides of second baffle (17), two relief valve (216) of group battery (2) are close to second baffle (17) and set up.
Has the advantages that: through the setting of second baffle, can prevent that high temperature high pressure gas from assaulting to adjacent group battery.
Furthermore, four explosion-proof valves (13) are fixed on one side wall of the shell (1) at intervals.
Further, the shell (1) is of a cubic structure with an open top.
Furthermore, fixing seats (11) are fixed on the front outer wall and the rear outer wall of the shell (1).
Furthermore, the battery pack fixing device further comprises an upper cover plate (3), wherein the upper cover plate (3) is fixed at the top end of the shell (1) to limit the battery pack (2) in the shell (1).
The utility model has the advantages that:
the utility model discloses be provided with anodal post, negative pole post, relief valve in electric core, through setting up anodal post and negative pole post to the homonymy, when assembling in the battery package, can effectively improve the energy holding capacity of battery package, and then improve the energy density of battery package; through setting up utmost point post and relief valve to the offside, assemble this electric core to the battery package after, when taking place thermal runaway, positive negative pole post can not be led to the fact the damage to exhaust high temperature high-pressure gas in the relief valve.
The utility model discloses set up casing, at least one group battery in the battery pack device, through the exhaust passage that forms between explosion-proof valve and relief valve, and the setting that does not communicate between exhaust passage and the utmost point post, when the thermal runaway takes place, the high temperature high-pressure gas in the exhaust passage can not cause the damage to the positive negative pole post at all, can prevent the thermal runaway to spread better; through setting up anodal post and negative pole post on a plurality of electric cores in one side, can set up more electric cores in the casing, and then effectively improve the energy holding capacity of battery package.
The utility model discloses a setting of first baffle can guarantee not to communicate with each other between exhaust passage and the utmost point post, and then guarantees that the high temperature high-pressure gas in the exhaust passage can not lead to the fact the damage to the positive negative pole post well completely.
The utility model discloses a setting of second baffle can prevent that high temperature high-pressure gas from assaulting adjacent group battery.
Drawings
Fig. 1 is an internal plan view of a battery pack device according to embodiment 1 of the present invention;
fig. 2 is an exploded view of a battery pack device according to embodiment 1 of the present invention;
fig. 3 is an exploded view of another perspective of the battery pack device according to embodiment 1 of the present invention;
fig. 4 is a front view of an electric core in a battery pack according to embodiment 1 of the present invention;
fig. 5 is a right side view of an electric core in the battery pack according to embodiment 1 of the present invention;
fig. 6 is a left side view of an electric core in the battery pack according to embodiment 1 of the present invention;
fig. 7 is a top view of an electric core in the battery pack according to embodiment 1 of the present invention;
fig. 8 is an internal plan view of a battery pack device according to embodiment 2 of the present invention;
fig. 9 is an exploded view of a battery pack device according to embodiment 2 of the present invention;
fig. 10 is an exploded view of the battery pack device according to embodiment 2 of the present invention from another perspective;
FIG. 11 is an enlarged view of A in FIG. 8;
fig. 12 is an internal plan view of a battery pack device according to embodiment 3 of the present invention;
fig. 13 is an exploded view of a battery pack device according to embodiment 3 of the present invention;
fig. 14 is an enlarged view of B in fig. 12.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, 2 and 3, the present embodiment provides a battery pack device, which includes a housing 1, at least one battery pack 2, and an upper cover plate 3.
As shown in fig. 1, 2, and 3, the battery pack 2 is disposed in the case 1, and the upper cover 3 is fixed to the top end of the case 1.
As shown in fig. 1, 2, and 3, the battery pack 2 is provided with one; the shell 1 is of a cubic structure with an opening at the top; the front and rear outer walls of the shell 1 are fixed with fixed seats 11; a plurality of explosion-proof valves 13 are fixed on one side wall of the housing 1, the explosion-proof valves 13 penetrate through the side wall and extend into the housing, and in the example of the embodiment, four explosion-proof valves 13 are fixed on one side wall of the housing 1 at intervals.
As shown in fig. 2, the battery pack 2 includes a plurality of laterally arranged battery cells 21;
as shown in fig. 4 to 7, the battery cell 21 includes a substrate 211, a positive pole 213, a negative pole 214, and a pressure relief valve 216; a positive pole column 213 and a negative pole column 214 are fixed on one side of the substrate 211 at intervals, and a pressure release valve 216 is arranged on the other side of the substrate 211; the positive pole column 213 and the negative pole column 214 are arranged on the same side, and the pole column and the pressure release valve 216 are arranged on the opposite side;
as shown in fig. 2 and 3, the pressure relief valves 216 of the plurality of battery cells 21 are arranged on the same side, the pressure relief valves 216 and the explosion-proof valve 13 are arranged on the same side, and an exhaust passage is formed between the pressure relief valves 216 and the explosion-proof valve 13; the pole is arranged at the position opposite to the explosion-proof valve 13, and when thermal runaway occurs, high-temperature and high-pressure gas in the exhaust channel can not damage the positive pole and the negative pole completely; and positive post 213 and negative post 214 on a plurality of batteries 21 all set up in one side, consequently can set up more batteries 21 in casing 1, and then effectively improve the energy holding capacity of battery package.
As shown in fig. 1 and 2, the upper cover plate 3 is fixed to the top end of the case 1 by bolts to limit the battery pack 2 in the case 1.
When the battery pack 2 is used, one battery pack 2 is transversely placed in the shell 1, one side with the pressure release valve 216 is placed close to the explosion-proof valve 13, and then the upper cover plate 3 is fixed to the top end of the shell 1 through bolts to limit the battery pack 2 in the shell 1; when thermal runaway occurs, high-temperature and high-pressure gas in the pressure relief valve 216 is directly released from the explosion-proof valve 13.
Example 2
As shown in fig. 8 to 11, the present embodiment differs from the first embodiment in that, on the basis of the first embodiment, the battery pack 2 includes a plurality of vertically arranged battery cells 21, the pressure relief valve 216 and the explosion-proof valve 13 are arranged at a distance from each other, and an exhaust passage is formed between the pressure relief valve 216 and the explosion-proof valve 13; the pole column and the explosion-proof valve 13 are arranged at the separation side, a first partition plate 15 is fixed at the corner between the pole column and the explosion-proof valve 13 on the shell 1, and when thermal runaway occurs, high-temperature and high-pressure gas in an exhaust channel can not damage the positive pole column and the negative pole column completely; and positive post 213 and negative post 214 on a plurality of batteries 21 all set up in one side, consequently can set up more batteries 21 in casing 1, and then effectively improve the energy holding capacity of battery package.
When the battery pack is used, one battery pack 2 is vertically placed in the shell 1, and the pole and the explosion-proof valve 13, and the pressure release valve 216 and the explosion-proof valve 13 are arranged at the sides; the side with the pole is placed at the side close to the first partition 15, and an exhaust passage is formed between the pressure relief valve 216 and the explosion-proof valve 13; then the upper cover plate 3 is fixed to the top end of the shell 1 through bolts to limit the battery pack 2 in the shell 1; when thermal runaway occurs, the first partition 15 blocks the high-temperature high-pressure gas in the exhaust passage, and the high-temperature high-pressure gas in the pressure release valve 216 is directly released from the exhaust passage.
Example 3
As shown in fig. 12 to 14, the present embodiment is different from the first embodiment in that two battery packs 2 are provided on the basis of the first embodiment, and the two battery packs 2 are arranged in a mirror image manner; a second partition plate 17 is fixed in the middle of the inner side of the bottom wall of the shell 1, the two battery packs 2 are respectively arranged on two sides of the second partition plate 17, and the second partition plate 17 can prevent high-temperature and high-pressure gas from impacting the adjacent battery packs 2; the battery pack 2 comprises a plurality of vertically arranged battery cells 21, the pressure release valves 216 of the two battery packs 2 are arranged close to the second partition plate 17, the pressure release valves 216 and the explosion-proof valve 13 are arranged at the partition sides, and an exhaust channel is formed between the pressure release valves 216 and the explosion-proof valve 13; the pole column and the explosion-proof valve 13 are arranged at the separation side, the first partition plate 15 is fixed at the corner between the pole column and the explosion-proof valve 13 on the shell 1, and when thermal runaway occurs, high-temperature and high-pressure gas in an exhaust channel can not damage the positive pole column and the negative pole column completely; and positive post 213 and negative pole 214 on a plurality of batteries 21 all set up one side, consequently can set up more batteries 21 in casing 1, and then effectively improve the energy holding capacity of battery package.
When in use, the two battery packs 2 are vertically placed at two sides of the second partition plate 17 in the shell 1, and one side with the pressure release valve 216 is placed close to the second partition plate 17; the pole column and the explosion-proof valve 13 are arranged at the separation side, and a first partition plate 15 is fixed at the corner between the pole column and the explosion-proof valve 13 on the shell 1; an exhaust passage is formed between the pressure relief valve 216 and the explosion-proof valve 13; then the upper cover plate 3 is fixed to the top end of the shell 1 through bolts to limit the battery pack 2 in the shell 1; when taking place thermal runaway, first baffle 15 and second baffle 17 separate high temperature high-pressure gas and keep off in respective exhaust passage, and the high temperature high-pressure gas in the relief valve 216 is direct releases away from exhaust passage, can not cause the damage to adjacent group battery 2 and utmost point post.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The battery cell is characterized by comprising a base body (211), a positive pole column (213), a negative pole column (214) and a pressure relief valve (216);
a positive pole (213) and a negative pole (214) are arranged on one side of the base body (211) at intervals, and a pressure release valve (216) is arranged on the other side of the base body (211);
the positive pole column (213) and the negative pole column (214) are arranged on the same side, and the pole column and the pressure relief valve (216) are arranged on opposite sides.
2. A battery pack assembly comprising the cell of claim 1, wherein: comprises a shell (1) and at least one battery pack (2); the battery pack (2) is arranged in the shell (1); the battery pack (2) comprises a plurality of neatly arranged battery cells (21); a plurality of explosion-proof valves (13) arranged at intervals are arranged on one side wall of the shell (1), and the explosion-proof valves (13) penetrate through the side wall and extend into the shell; the pressure relief valve (216) on the battery cell (21) is arranged on the same side and forms an exhaust channel together with the explosion-proof valve (13); the exhaust channel is not communicated with the pole.
3. A battery pack apparatus according to claim 2, wherein: one battery pack (2) is arranged; the battery pack (2) comprises a plurality of transversely arranged cells (21); the pressure release valve (216) and the explosion-proof valve (13) are arranged on the same side, and the pole is arranged at the position opposite to the explosion-proof valve (13).
4. A battery pack apparatus as claimed in claim 2, wherein: one battery pack (2) is arranged; the battery pack (2) comprises a plurality of vertically arranged battery cells (21), the pressure release valve (216) and the explosion-proof valve (13) are arranged on the side of the separator, the pole and the explosion-proof valve (13) are arranged on the side of the separator, and a first partition plate (15) is fixed at a corner between the pole and the explosion-proof valve (13) on the shell (1).
5. A battery pack apparatus as claimed in claim 2, wherein: the two battery packs (2) are arranged, and the two battery packs (2) are arranged in a mirror image manner; the battery pack (2) comprises a plurality of vertically arranged battery cells (21), pressure release valves (216) of two battery packs (2) are arranged inwards, and the pressure release valves (216) and the explosion-proof valve (13) are arranged at intervals; the terminal post and the explosion-proof valve (13) are arranged at the separation side, and first partition plates (15) are fixed at the corners between the terminal post and the explosion-proof valve (13) on the shell (1).
6. The battery pack apparatus according to claim 5, wherein: casing (1) diapire inboard intermediate position department is fixed with second baffle (17), and two group batteries (2) set up respectively in the both sides of second baffle (17), two relief valve (216) of group battery (2) are near second baffle (17) setting.
7. A battery pack apparatus according to any one of claims 2-6, wherein: four explosion-proof valves (13) are fixed on one side wall of the shell (1) at intervals.
8. A battery pack apparatus according to any one of claims 2-6, wherein: the shell (1) is of a cubic structure with an open top.
9. A battery pack apparatus according to any one of claims 2-6, wherein: and fixed seats (11) are fixed on the front and rear outer walls of the shell (1).
10. A battery pack apparatus according to any one of claims 2-6, wherein: the battery pack is characterized by further comprising an upper cover plate (3), wherein the upper cover plate (3) is fixed at the top end of the shell (1) to limit the battery pack (2) in the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220986429.2U CN217239700U (en) | 2022-04-22 | 2022-04-22 | Battery cell and battery pack device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220986429.2U CN217239700U (en) | 2022-04-22 | 2022-04-22 | Battery cell and battery pack device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217239700U true CN217239700U (en) | 2022-08-19 |
Family
ID=82821569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220986429.2U Active CN217239700U (en) | 2022-04-22 | 2022-04-22 | Battery cell and battery pack device comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217239700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117374508A (en) * | 2023-12-07 | 2024-01-09 | 蜂巢能源科技股份有限公司 | Battery and battery pack |
-
2022
- 2022-04-22 CN CN202220986429.2U patent/CN217239700U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117374508A (en) * | 2023-12-07 | 2024-01-09 | 蜂巢能源科技股份有限公司 | Battery and battery pack |
| CN117374508B (en) * | 2023-12-07 | 2024-03-01 | 蜂巢能源科技股份有限公司 | Battery and battery pack |
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