CN215527791U - Lithium battery with seepage detection function - Google Patents
Lithium battery with seepage detection function Download PDFInfo
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- CN215527791U CN215527791U CN202122119847.XU CN202122119847U CN215527791U CN 215527791 U CN215527791 U CN 215527791U CN 202122119847 U CN202122119847 U CN 202122119847U CN 215527791 U CN215527791 U CN 215527791U
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- Prior art keywords
- battery
- heat dissipation
- main body
- assembly
- battery pack
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 31
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 230000017525 heat dissipation Effects 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000011229 interlayer Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 239000003063 flame retardant Substances 0.000 claims description 13
- 239000011889 copper foil Substances 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 10
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Classifications
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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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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium battery with a liquid seepage detection function, which comprises a battery pack shell, a battery core and a protection assembly, wherein a battery main body is arranged in the battery pack shell, the battery core is fixed in the middle of the interior of the battery main body, a miniature liquid level sensor is arranged at the top end of the interior of the battery core, an inner battery assembly for conducting electricity is arranged on the outer side of the battery core, the inner battery assembly is positioned in the battery main body, a heat dissipation assembly for dissipating heat is arranged between the inner battery assembly and the inner wall of the battery main body, the heat dissipation assembly comprises an interlayer and heat dissipation fins, and the heat dissipation fins are fixed on the outer side of the interlayer. This lithium cell with sepage detects function, battery pack shell constitute a great group battery of capacity, and the holistic use of battery pack shell can not influenced by the damage of single battery subject, can also reflect the inside electrolyte liquid level of battery core through miniature level sensor's liquid level detection, realizes the function that the sepage detected.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery with a seepage detection function.
Background
A lithium battery is a battery using a nonaqueous electrolyte solution and lithium metal or a lithium alloy as a negative electrode material, and therefore such a battery is also called a lithium metal battery. Unlike other batteries, lithium batteries have the characteristics of high charge density, long service life, high unit cost and the like. Lithium batteries can generate a voltage of 1.5V to 3.7V depending on the structural design and the electrode material.
The conventional lithium battery does not have the function of seepage detection, and once seepage is found out untimely, the use is influenced, and accidents such as explosion and the like can be caused.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a lithium battery with a liquid leakage detection function, so as to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a lithium battery with a liquid seepage detection function comprises a battery pack shell, a battery core and a protection assembly, wherein a battery main body is arranged inside the battery pack shell, the battery core is fixed in the middle of the inside of the battery main body, a miniature liquid level sensor is arranged at the top end of the inside of the battery core, an inner battery assembly for conducting electricity is arranged on the outer side of the battery core and is positioned inside the battery main body, a heat dissipation assembly for dissipating heat is arranged between the inner battery assembly and the inner wall of the battery main body and comprises an interlayer and heat dissipation fins, the outer side of the interlayer is fixed with the heat dissipation fins, the heat dissipation fins are half embedded in the inner wall of the battery main body, the protection assembly is arranged on the inner wall of the battery pack shell and comprises an outer frame, a spring, a partition plate and flame-retardant dry powder, a partition plate is fixed inside the outer frame, and the spring is arranged between the outer frame and the partition plate, the inner side of the partition board is filled with flame-retardant dry powder.
Preferably, the center of symmetry of the battery core coincides with the center of symmetry of the battery main body, and the battery main body has a cylindrical structure.
Preferably, the upper side and the lower side of the inside of the battery pack case are respectively provided with an upper gasket and a lower gasket, and the upper side and the lower side of the outside of the battery pack case are respectively fixed with a positive plate and a negative plate.
Preferably, the component in the battery comprises a positive aluminum foil, a first diaphragm, a negative copper foil and a second diaphragm, the first diaphragm is arranged on the outer side of the positive aluminum foil, the negative copper foil is arranged on the outer side of the first diaphragm, and the second diaphragm is arranged on the outer side of the negative copper foil.
Preferably, the heat dissipation fins are distributed equidistantly and are in a ring-shaped structure.
Preferably, a PVC limiting pipe sleeve is fixed on the lower portion inside the battery pack shell, the PVC limiting pipe sleeve is sleeved on the outer side of the bottom of the battery main body, and conductive patches are fixed on the upper side and the lower side of the battery pack shell.
Preferably, the outer frame and the partition plate are both arc-shaped structures, and springs are symmetrically and uniformly distributed between the outer frame and the partition plate.
The utility model provides a lithium battery with a seepage detection function, which has the following beneficial effects: this lithium cell with sepage detects function, battery pack shell constitute a great group battery of capacity, and the holistic use of battery pack shell can not influenced by the damage of single battery subject, can also reflect the inside electrolyte liquid level of battery core through miniature level sensor's liquid level detection, realizes the function that the sepage detected.
1. The battery core and the micro liquid level sensor are arranged, electrolyte is filled in the battery core, the battery main body in a cylindrical structure can be fixed in the middle of the inside of the battery core, the battery pack shell and the battery main body need to be stably placed, the electrolyte level in the battery core is convenient to detect through the micro liquid level sensor, the liquid level is reduced during liquid leakage, and the function of liquid seepage detection can be realized.
2. The battery core is provided with the heat dissipation assembly, on one hand, the heat dissipation fins distributed at equal intervals are half embedded in the inner wall of the battery body to conduct heat and dissipate heat inside the battery core, on the other hand, the heat dissipation fins are distributed in an annular structure and can also strengthen the structural strength of the inner wall of the battery body, so that the strength of the battery body is better, and the positive plate and the negative plate of the battery body are used for conducting electricity.
3. The battery pack is provided with the protection component, the outer frame and the partition plate which are of arc-shaped structures can be arranged outside the battery main body in a semi-surrounding manner, the spring can play a role in elastic compression resistance, the flame-retardant dry powder is mainly a fire extinguishing agent and can be put out in time when the battery catches fire, so that the flame-retardant effect is achieved, the conductive patches on the upper side and the lower side of the battery pack shell are respectively contacted with the positive plate and the negative plate, and the battery pack with large capacity can be formed.
Drawings
Fig. 1 is a schematic top view of a lithium battery with a liquid leakage detection function according to the present invention;
FIG. 2 is a schematic diagram of a front view of a lithium battery with a liquid leakage detection function according to the present invention;
FIG. 3 is a schematic diagram showing a cross-sectional structure of a main body of a lithium battery having a liquid leakage detecting function according to the present invention;
fig. 4 is an enlarged schematic structural diagram of a portion a in fig. 3 of a lithium battery with a liquid leakage detection function according to the present invention.
In the figure: 1. a battery pack case; 2. a battery main body; 3. a battery cell; 4. a micro liquid level sensor; 5. an upper gasket; 6. a lower gasket; 7. a positive plate; 8. a negative plate; 9. an in-cell component; 901. a positive aluminum foil; 902. a first diaphragm; 903. a negative copper foil; 904. a second diaphragm; 10. a heat dissipating component; 1001. an interlayer; 1002. heat dissipation fins; 11. a PVC limit pipe sleeve; 12. a guard assembly; 1201. an outer frame; 1202. a spring; 1203. a partition plate; 1204. flame retardant dry powder; 13. a conductive patch.
Detailed Description
As shown in fig. 1, a lithium battery with a liquid seepage detection function comprises a battery pack housing 1, a battery cell 3 and a protection assembly 12, wherein a battery body 2 is installed inside the battery pack housing 1, the protection assembly 12 is installed on the inner wall of the battery pack housing 1, the protection assembly 12 comprises an outer frame 1201, a spring 1202, a partition 1203 and flame-retardant dry powder 1204, the partition 1203 is fixed inside the outer frame 1201, the spring 1202 is installed between the outer frame 1201 and the partition 1203, and the flame-retardant dry powder 1204 is filled inside the partition 1203; the outer frame 1201 and the partition plate 1203 are both arc-shaped structures, and springs 1202 are symmetrically and uniformly distributed between the outer frame 1201 and the partition plate 1203; the frame 1201 and the baffle 1203 that are the arc column structure can be and set up in the outside of battery main part 2 in the form of partly surrounding, and the effect of elasticity resistance to compression can be played in the setting of spring 1202, and fire-retardant dry powder 1204 mainly is the fire extinguishing agent, can in time put out when the battery catches fire appearing, plays fire-retardant effect.
As shown in fig. 2-3, an upper gasket 5 and a lower gasket 6 are respectively arranged on the upper side and the lower side of the interior of the battery pack case 1, and a positive plate 7 and a negative plate 8 are respectively fixed on the upper side and the lower side of the exterior of the battery pack case 1; the inside below of group battery shell 1 is fixed with the spacing pipe box of PVC 11, and the outside of the bottom of battery main part 2 is located to the spacing pipe box of PVC 11 cover, and both sides all are fixed with electrically conductive paster 13 about group battery shell 1.
As shown in fig. 3, the battery cell 3 is fixed in the middle of the inside of the battery main body 2, the micro liquid level sensor 4 is installed at the top end of the inside of the battery cell 3, the symmetry center of the battery cell 3 coincides with the symmetry center of the battery main body 2, and the battery main body 2 is in a cylindrical structure; the inside packing of battery core 3 has electrolyte, the battery body 2 that is cylindric structure can fix in the middle of the inside of battery core 3, be convenient for detect the inside electrolyte liquid level of battery core 3 through setting up of miniature level sensor 4, the liquid level reduction can appear during the weeping, can realize the function that the sepage detected, the outside of battery core 3 is provided with subassembly 9 in being used for electrically conductive battery, and subassembly 9 is located the inside of battery body 2 in the battery, subassembly 9 includes anodal aluminium foil 901 in the battery, first diaphragm 902, negative pole copper foil 903 and second diaphragm 904, and the outside of anodal aluminium foil 901 is provided with first diaphragm 902, the outside of first diaphragm 902 is provided with negative pole copper foil 903, and the outside of negative pole copper foil 903 is provided with second diaphragm 904.
As shown in fig. 4, a heat dissipation assembly 10 for dissipating heat is disposed between the in-cell assembly 9 and the inner wall of the cell main body 2, the heat dissipation assembly 10 includes a spacer 1001 and heat dissipation fins 1002, the heat dissipation fins 1002 are fixed on the outer side of the spacer 1001, the heat dissipation fins 1002 are half embedded in the inner wall of the cell main body 2, the heat dissipation fins 1002 are distributed at equal intervals, and the heat dissipation fins 1002 are in a ring-shaped structure; on one hand, the heat dissipation fins 1002 distributed equidistantly are half embedded in the inner wall of the battery body 2 to conduct heat and dissipate heat inside the battery core 3, and on the other hand, the heat dissipation fins 1002 are distributed in a ring-shaped structure and can also strengthen the structural strength of the inner wall of the battery body 2, so that the strength of the battery body 2 is better.
In conclusion, the lithium battery with the liquid seepage detection function is characterized in that when the lithium battery is used, the battery pack shell 1 and the battery main body 2 need to be placed stably, electrolyte is filled in the battery core 3, the battery main body 2 with the cylindrical structure can be fixed in the middle of the inside of the battery core 3, the electrolyte liquid level in the battery core 3 can be detected conveniently through the arrangement of the micro liquid level sensor 4, the liquid level is reduced during liquid leakage, the liquid seepage detection function can be realized, and the heat dissipation assembly 10 is arranged, on one hand, the heat dissipation fins 1002 which are distributed equidistantly are half embedded in the inner wall of the battery main body 2 to conduct heat and dissipate the heat in the battery core 3, on the other hand, the heat dissipation fins 1002 are distributed in the annular structure and can also strengthen the structural strength of the inner wall of the battery main body 2, so that the strength of the battery main body 2 is better;
in the using process, the battery main body 2 is sleeved in the PVC limit pipe sleeve 11 in the battery pack shell 1, the positive plate 7 and the negative plate 8 of the battery main body 2 are used for conducting electricity, the conducting performance of the positive aluminum foil 901 and the negative copper foil 903 is better, the conducting patches 13 on the upper side and the lower side of the battery pack shell 1 are respectively contacted with the positive plate 7 and the negative plate 8 to form a battery pack with larger capacity, the damage of a single battery main body 2 cannot influence the integral use of the battery pack shell 1, and the frame 1201 and the baffle 1203 that are the arc column structure can be the form of partly surrounding when using and set up in the outside of battery main part 2, and the effect of elasticity resistance to compression can be played in the setting of spring 1202, and fire-retardant dry powder 1204 mainly is the fire extinguishing agent, can in time put out when the battery appears catching fire, plays fire-retardant effect, has just so accomplished this lithium cell with sepage test function's use.
Claims (7)
1. A lithium battery with a seepage detection function comprises a battery pack shell (1), a battery core (3) and a protection assembly (12), and is characterized in that a battery main body (2) is arranged inside the battery pack shell (1), the battery core (3) is fixed in the middle of the inside of the battery main body (2), a miniature liquid level sensor (4) is installed at the top end of the inside of the battery core (3), an inner assembly (9) for conducting is arranged outside the battery core (3), the inner assembly (9) for conducting is located inside the battery main body (2), a heat dissipation assembly (10) for dissipating heat is arranged between the inner assembly (9) for conducting and the inner wall of the battery main body (2), the heat dissipation assembly (10) comprises an interlayer (1001) and heat dissipation fins (1002), and the heat dissipation fins (1002) are fixed outside the interlayer (1001), and the heat dissipation fins (1002) are half embedded in the inner wall of the battery body (2), the protection component (12) is arranged on the inner wall of the battery pack housing (1), the protection component (12) comprises an outer frame (1201), a spring (1202), a partition plate (1203) and flame-retardant dry powder (1204), the partition plate (1203) is fixed in the outer frame (1201), the spring (1202) is installed between the outer frame (1201) and the partition plate (1203), and the flame-retardant dry powder (1204) is filled in the inner side of the partition plate (1203).
2. The lithium battery with the function of detecting the seepage according to claim 1, characterized in that the symmetry center of the battery core (3) coincides with the symmetry center of the battery body (2), and the battery body (2) has a cylindrical structure.
3. The lithium battery with the seepage detection function according to claim 1, wherein an upper gasket (5) and a lower gasket (6) are respectively arranged on the upper side and the lower side of the inside of the battery pack case (1), and a positive plate (7) and a negative plate (8) are respectively fixed on the upper side and the lower side of the outside of the battery pack case (1).
4. The lithium battery with the seepage detection function according to claim 1, wherein the in-battery assembly (9) comprises a positive aluminum foil (901), a first diaphragm (902), a negative copper foil (903) and a second diaphragm (904), the first diaphragm (902) is arranged on the outer side of the positive aluminum foil (901), the negative copper foil (903) is arranged on the outer side of the first diaphragm (902), and the second diaphragm (904) is arranged on the outer side of the negative copper foil (903).
5. The lithium battery with the function of detecting the liquid leakage as claimed in claim 4, wherein the heat dissipation fins (1002) are distributed equidistantly, and the heat dissipation fins (1002) are in a ring-shaped structure.
6. The lithium battery with the seepage detection function according to claim 1, wherein a PVC limiting pipe sleeve (11) is fixed at the lower part inside the battery pack shell (1), the PVC limiting pipe sleeve (11) is sleeved outside the bottom of the battery main body (2), and conductive patches (13) are fixed at the upper side and the lower side of the battery pack shell (1).
7. The lithium battery with the seepage detection function according to claim 6, wherein the outer frame (1201) and the partition plate (1203) are both arc-shaped structures, and springs (1202) are symmetrically and uniformly distributed between the outer frame (1201) and the partition plate (1203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122119847.XU CN215527791U (en) | 2021-09-03 | 2021-09-03 | Lithium battery with seepage detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122119847.XU CN215527791U (en) | 2021-09-03 | 2021-09-03 | Lithium battery with seepage detection function |
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| Publication Number | Publication Date |
|---|---|
| CN215527791U true CN215527791U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122119847.XU Expired - Fee Related CN215527791U (en) | 2021-09-03 | 2021-09-03 | Lithium battery with seepage detection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN215527791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583329A (en) * | 2022-03-14 | 2022-06-03 | 辽宁生态工程职业学院 | Improve heat radiation structure of high-efficient energy storage of new forms of energy battery |
| DE102022116436A1 (en) | 2022-07-01 | 2024-01-04 | Bayerische Motoren Werke Aktiengesellschaft | High-voltage storage |
-
2021
- 2021-09-03 CN CN202122119847.XU patent/CN215527791U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583329A (en) * | 2022-03-14 | 2022-06-03 | 辽宁生态工程职业学院 | Improve heat radiation structure of high-efficient energy storage of new forms of energy battery |
| CN114583329B (en) * | 2022-03-14 | 2023-12-12 | 辽宁生态工程职业学院 | Heat radiation structure for improving high-efficiency energy storage of new energy battery |
| DE102022116436A1 (en) | 2022-07-01 | 2024-01-04 | Bayerische Motoren Werke Aktiengesellschaft | High-voltage storage |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220114 |