CN219677378U - Quick-charging square battery - Google Patents
Quick-charging square battery Download PDFInfo
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- CN219677378U CN219677378U CN202223503642.2U CN202223503642U CN219677378U CN 219677378 U CN219677378 U CN 219677378U CN 202223503642 U CN202223503642 U CN 202223503642U CN 219677378 U CN219677378 U CN 219677378U
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- Prior art keywords
- plate
- positive
- negative electrode
- negative
- shell
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- 238000000576 coating method Methods 0.000 claims description 38
- 239000011248 coating agent Substances 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000003475 lamination Methods 0.000 abstract description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- 239000003792 electrolyte Substances 0.000 description 6
- 230000008595 infiltration Effects 0.000 description 5
- 238000001764 infiltration Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 239000011149 active material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to the technical field of lithium batteries, and provides a fast-charging square battery, which comprises: the battery comprises a shell, a battery core, an anode current collecting plate and a cathode current collecting plate; the shell is in a cuboid shape; the battery cell comprises a positive plate, a diaphragm and a negative plate which are arranged in a stacked manner along the length direction of the shell, wherein the positive plate and the negative plate are alternately arranged in sequence, and the diaphragm is positioned between the positive plate and the negative plate; the positive plate and the negative plate are arranged in a staggered way, a positive electrode conductive area on the positive plate is collected at one end of the battery cell and is connected with the positive electrode current collecting plate, and a negative electrode conductive area on the negative plate is collected at the other end of the battery cell and is connected with the negative electrode current collecting plate; the positive electrode current collecting plate is connected with the positive electrode post, and the negative electrode current collecting plate is connected with the negative electrode post; according to the utility model, the positive electrode plate and the negative electrode plate are arranged in a lamination manner along the length direction of the shell, so that the internal resistance of the battery cell is reduced, the positive electrode conductive area and the negative electrode conductive area are respectively arranged at two sides of the battery cell, the temperature gradient of the battery cell during quick charge is reduced, and the battery cell effectively improves the multiplying power cycle performance of the quick charge square battery.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a fast-charging square battery.
Background
The lithium ion battery has the characteristics of high energy density and power density, high working voltage, long cycle life and the like, and particularly, the square battery is widely applied to the field of electric automobiles due to high structural stability.
The pole pieces of the conventional square battery are generally stacked along the width direction of the shell, so that the area of each pole piece is larger, the electrolyte infiltration efficiency is affected, the electronic conductivity is lower, the internal resistance of the square battery is larger, and the quick charge performance of the square battery is seriously affected. Meanwhile, positive and negative electrode lugs of the conventional square battery are positioned on the same side of the battery cell, when the square battery is charged quickly, the temperature of the position, close to the electrode lugs, of the battery cell is higher, the temperature of the position, away from the electrode lugs, of the battery cell is lower, so that the temperature gradient of the battery cell is larger, and the consistency of the battery cell is poorer.
Disclosure of Invention
The utility model provides a quick-charging square battery which is used for solving or improving the problems of larger internal resistance and larger temperature gradient of a battery core during quick charging of the traditional square battery core.
The utility model provides a fast-charging square battery, comprising: the battery comprises a shell, a battery core, an anode current collecting plate and a cathode current collecting plate; the shell is cuboid, and the battery core, the positive electrode current collecting plate and the negative electrode current collecting plate are all arranged in the shell; the battery cell comprises a positive plate, a diaphragm and a negative plate which are stacked along the length direction of the shell, wherein the positive plate and the negative plate are alternately arranged in sequence, and the diaphragm is positioned between the positive plate and the negative plate; the positive plate and the negative plate are arranged in a staggered manner, a positive conductive area on the positive plate is collected at one end of the battery cell and is connected with the positive current collecting plate, and a negative conductive area on the negative plate is collected at the other end of the battery cell and is connected with the negative current collecting plate; the positive electrode current collecting plate is connected with the positive electrode post on the shell, and the negative electrode current collecting plate is connected with the negative electrode post on the shell.
According to the quick-charge square battery provided by the utility model, the positive electrode plate is provided with the positive electrode coating on the two end surfaces of the positive electrode plate along the length direction of the shell, the positive electrode coating extends from the first end of the positive electrode plate to the second end of the positive electrode plate along the height direction of the shell, the length of the positive electrode coating along the height direction of the shell is smaller than the length of the positive electrode plate along the height direction of the shell, and the positive electrode conductive area is formed at the second end of the positive electrode plate.
According to the quick-charge square battery provided by the utility model, the thickness of the positive electrode coating ranges from 50 micrometers to 200 micrometers.
According to the quick-charge square battery provided by the utility model, the two end surfaces of the negative electrode plate along the length direction of the shell are respectively provided with the negative electrode coating, the negative electrode coating extends from the first end of the negative electrode plate to the second end of the negative electrode plate along the height direction of the shell, the length of the negative electrode coating along the height direction of the shell is smaller than the length of the negative electrode plate along the height direction of the shell, and the negative electrode conductive area is formed at the second end of the negative electrode plate.
According to the quick-charge square battery provided by the utility model, the thickness of the negative electrode coating ranges from 30 micrometers to 200 micrometers.
According to the quick-charge square battery provided by the utility model, the positive electrode coating of the positive electrode plate and the negative electrode coating of the negative electrode plate are arranged oppositely, and the diaphragm covers the positive electrode coating and the negative electrode coating.
According to the quick-charging square battery provided by the utility model, the shell comprises a top plate, a body and a bottom plate; the body is cylindrical, the top plate is in sealing connection with the opening at one end of the body, and the bottom plate is in sealing connection with the opening at the other end of the body; the negative pole post is arranged on the top plate, and the positive pole post is arranged on the bottom plate.
According to the quick-charging square battery provided by the utility model, the top plate is provided with the explosion-proof valve.
According to the quick-charge square battery provided by the utility model, the positive plate comprises an aluminum foil.
According to the quick-charge square battery provided by the utility model, the negative plate comprises a copper foil.
According to the quick-charge square battery provided by the utility model, the positive plate and the negative plate are arranged in a lamination manner along the length direction of the shell 1, so that the areas of the positive plate and the negative plate are correspondingly reduced compared with the existing lamination manner along the width direction of the shell, the electronic conductivity is improved, the internal resistance of the battery core is reduced, the infiltration time of electrolyte is shortened due to the positive plate and the negative plate with smaller areas, and the infiltration efficiency of the electrolyte is improved; through the alternate lamination of the positive plates and the negative plates, a plurality of positive plates are respectively connected with the positive current collecting plates, so that the positive plates are equivalent to be connected in parallel, and the negative plates are equivalent to be connected in parallel, so that the internal resistance of the battery cell is further reduced, and the larger the lamination quantity of the positive plates and the negative plates is, the smaller the internal resistance of the battery cell is; meanwhile, the positive electrode conductive area and the negative electrode conductive area are positioned at two ends of the battery cell, the positive electrode conductive area is equivalent to a positive electrode tab of the battery cell, the negative electrode conductive area is equivalent to a negative electrode tab of the battery cell, namely, the positive electrode tab and the negative electrode tab are positioned at two ends of the battery cell, so that the temperature distribution gradient of the battery cell is uniform when the quick-charging square battery is quickly charged, the temperature difference between one end and the other end of the battery cell is avoided, the consistency and the quick-charging performance of the battery cell are ensured, and the multiplying power cycle performance of the quick-charging square battery is improved.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a fast-charging square battery provided by the utility model;
fig. 2 is a schematic structural diagram of a battery cell according to the present utility model.
Reference numerals:
1: a housing; 11: a top plate; 12: a body; 13: a bottom plate; 2: a battery cell; 21: a positive plate; 22: a diaphragm; 23: a negative electrode sheet; 24: a positive electrode coating; 25: a negative electrode coating; 3: a positive electrode current collecting plate; 4: a negative electrode current collecting plate; 5: a positive electrode post; 6: a negative electrode post; 7: an explosion-proof valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.
The quick-charge square battery provided by the present utility model is described below with reference to fig. 1 to 2.
As shown in fig. 1 and 2, the quick-charge square battery shown in the present embodiment includes: the battery comprises a shell 1, a battery cell 2, a positive current collecting plate 3 and a negative current collecting plate 4.
The shell 1 is cuboid, and the battery core 2, the positive electrode current collecting plate 3 and the negative electrode current collecting plate 4 are all arranged in the shell 1; the battery cell 2 comprises a positive plate 21, a diaphragm 22 and a negative plate 23 which are stacked along the length direction of the shell 1, wherein the positive plate 21 and the negative plate 23 are alternately arranged in sequence, and the diaphragm 22 is positioned between the positive plate 21 and the negative plate 23 to play a role of insulation; the positive plate 21 and the negative plate 23 are arranged in a staggered manner, so that one end of the positive plate 21 and one end of the negative plate 23 are exposed, a positive electrode conductive area on the positive plate 21 is collected at one end of the battery cell 2 and is connected with the positive electrode current collecting plate 3, and a negative electrode conductive area on the negative plate 23 is collected at the other end of the battery cell 2 and is connected with the negative electrode current collecting plate 4; the positive electrode current collecting plate 3 is connected with the positive electrode post 5 on the shell 1, and the negative electrode current collecting plate 4 is connected with the negative electrode post 6 on the shell 1.
Specifically, in the fast-charging square battery shown in this embodiment, by stacking the positive electrode plate 21 and the negative electrode plate 23 along the length direction of the casing 1, the areas of the positive electrode plate 21 and the negative electrode plate 23 are correspondingly reduced compared with the existing stacked arrangement along the width direction of the casing 1, so that the electronic conductivity is improved, the internal resistance of the battery cell 2 is reduced, the infiltration time of the electrolyte is shortened due to the positive electrode plate 21 and the negative electrode plate 23 with smaller areas, and the infiltration efficiency of the electrolyte is improved; by alternately stacking the positive plates 21 and the negative plates 23, the positive plates 21 are respectively connected with the positive current collecting plates 3, so that the positive plates 21 are equivalent to being connected in parallel, and the negative plates 23 are equivalent to being connected in parallel, so that the internal resistance of the battery cell 2 is further reduced, and the larger the number of stacked positive plates 21 and negative plates 23 is, the smaller the internal resistance of the battery cell 2 is; meanwhile, the positive electrode conductive area and the negative electrode conductive area are positioned at two ends of the battery cell 2, the positive electrode conductive area is equivalent to the positive electrode lug of the battery cell 2, the negative electrode conductive area is equivalent to the negative electrode lug of the battery cell 2, namely, the positive electrode lug and the negative electrode lug are positioned at two ends of the battery cell 2, so that the temperature distribution gradient of the battery cell 2 is uniform when the quick-charging square battery is quickly charged, the temperature difference between one end and the other end of the battery cell 2 is avoided to be overlarge, the consistency and the quick-charging performance of the battery cell 2 are ensured, and the multiplying power cycle performance of the quick-charging square battery is improved.
The longitudinal direction of the housing in this embodiment is a direction from left to right or from right to left in fig. 2.
Wherein, the positive plate 21 comprises an aluminum foil, namely the positive plate 21 is made of aluminum foil; the negative electrode sheet 23 includes a copper foil, that is, the material of the negative electrode sheet 23 is copper foil.
In some embodiments, as shown in fig. 1 and fig. 2, the positive electrode sheet 21 shown in this embodiment is provided with positive electrode coatings 24 on both end surfaces along the length direction of the casing 1, the positive electrode coatings 24 extend from the first end of the positive electrode sheet 21 toward the second end of the positive electrode sheet 21 along the height direction of the casing 1, the length of the positive electrode coatings 24 along the height direction of the casing 1 is smaller than the length of the positive electrode sheet 21 along the height direction of the casing 1, that is, the second end of the positive electrode sheet 21 is exposed, the positive electrode conductive area is formed at the second end of the positive electrode sheet 21, and the second end of the positive electrode sheet 21 and the positive electrode current collecting plate 3 are connected by welding.
Wherein the active material in the positive electrode coating 24 comprises lithium iron phosphate, nickel cobalt manganese ternary material or lithium cobaltate, etc.; the thickness of the positive electrode coating 24 ranges from 50 micrometers to 200 micrometers, and the thickness can be specifically 50 micrometers, 100 micrometers, 150 micrometers or 200 micrometers, and the exposed length of the positive electrode sheet 21 ranges from 5 millimeters to 20 millimeters, and the length can be specifically 5 millimeters, 10 millimeters, 15 millimeters or 20 millimeters.
The height direction of the housing 1 is from top to bottom or from bottom to top in fig. 2.
In some embodiments, as shown in fig. 1 and fig. 2, the negative electrode sheet 23 shown in this embodiment is provided with a negative electrode coating 25 on both end surfaces along the length direction of the casing 1, the negative electrode coating 25 extends from the first end of the negative electrode sheet 23 toward the second end of the negative electrode sheet 23 along the height direction of the casing 1, the length of the negative electrode coating 25 along the height direction of the casing 1 is smaller than the length of the negative electrode sheet 23 along the height direction of the casing 1, that is, the second end of the negative electrode sheet 23 is exposed, a negative electrode conductive area is formed at the second end of the negative electrode sheet 23, and the second end of the negative electrode sheet 23 and the negative electrode current collecting plate 4 are connected by welding.
Wherein the active material in the negative electrode coating layer 25 includes graphite, lithium titanate, silicon-based material, or the like; the thickness of the negative electrode coating 25 ranges from 30 micrometers to 200 micrometers, and the thickness may specifically be 30 micrometers, 100 micrometers, 150 micrometers or 200 micrometers, and the exposed length of the negative electrode sheet 23 ranges from 5 millimeters to 20 millimeters, and the length may specifically be 5 millimeters, 10 millimeters, 15 millimeters or 20 millimeters.
In some embodiments, as shown in fig. 1 and 2, the positive electrode coating 24 of the positive electrode sheet 21 and the negative electrode coating 25 of the negative electrode sheet 23 are disposed opposite to each other, and the separator 22 covers the positive electrode coating 24 and the negative electrode coating 25, so as to ensure the reliability of insulation.
In some embodiments, as shown in fig. 1, the housing 1 in this embodiment includes a top plate 11, a body 12, and a bottom plate 13; the body 12 is cylindrical, the top plate 11 is in sealing connection with an opening at one end of the body 12, and the bottom plate 13 is in sealing connection with an opening at the other end of the body 12; the negative electrode post 6 is provided on the top plate 11, and the positive electrode post 5 is provided on the bottom plate 13.
Specifically, after the welding of the positive electrode post 5 and the positive electrode current collecting plate 3 and the welding of the negative electrode post 6 and the negative electrode current collecting plate 4 are completed, the top plate 11 and the bottom plate 13 are respectively welded with the body 12 in a sealing manner, so that the battery cell 2 is sealed in the housing 1.
In some embodiments, as shown in fig. 1, an explosion-proof valve 7 is disposed on the top plate 11 in this embodiment, where the explosion-proof valve 7 is used to balance the pressure inside the casing 1, so as to ensure the safety of the fast-charging square battery during use.
The assembly sequence of the fast-charging square battery shown in the embodiment is that the positive plate 21, the diaphragm 22 and the negative plate 23 are laminated in a lamination mode, a positive electrode conductive area of the positive plate 21 is welded with the positive electrode current collecting plate 3, a negative electrode conductive area of the negative plate 23 is welded with the negative electrode current collecting plate 4, the outer side of the battery cell 2 is insulated and then is put into a shell, the top plate 11 and the bottom plate 13 are respectively welded with the body 12 in a sealing way, electrolyte is injected into the shell 1 and the shell is kept still, so that the battery cell 2 is fully immersed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A fast-charging prismatic battery, comprising: the battery comprises a shell, a battery core, an anode current collecting plate and a cathode current collecting plate;
the shell is cuboid, and the battery core, the positive electrode current collecting plate and the negative electrode current collecting plate are all arranged in the shell;
the battery cell comprises a positive plate, a diaphragm and a negative plate which are stacked along the length direction of the shell, wherein the positive plate and the negative plate are alternately arranged in sequence, and the diaphragm is positioned between the positive plate and the negative plate; the positive plate and the negative plate are arranged in a staggered manner, a positive conductive area on the positive plate is collected at one end of the battery cell and is connected with the positive current collecting plate, and a negative conductive area on the negative plate is collected at the other end of the battery cell and is connected with the negative current collecting plate;
the positive electrode current collecting plate is connected with the positive electrode post on the shell, and the negative electrode current collecting plate is connected with the negative electrode post on the shell.
2. The quick-charge square battery as defined in claim 1, wherein,
the positive plate is provided with positive electrode coatings on two end faces of the shell in the length direction, the positive electrode coatings extend from the first end of the positive plate to the second end of the positive plate in the height direction of the shell, the length of the positive electrode coatings in the height direction of the shell is smaller than that of the positive electrode plates in the height direction of the shell, and the positive electrode conductive area is formed at the second end of the positive plate.
3. The quick-charge square battery as defined in claim 2, wherein,
the thickness of the positive electrode coating layer ranges from 50 micrometers to 200 micrometers.
4. The quick-charge square battery as defined in claim 1, wherein,
the negative electrode plate is provided with a negative electrode coating on two end faces of the shell in the length direction, the negative electrode coating extends from the first end of the negative electrode plate to the second end of the negative electrode plate in the height direction of the shell, the length of the negative electrode coating in the height direction of the shell is smaller than that of the negative electrode plate in the height direction of the shell, and the negative electrode conductive area is formed at the second end of the negative electrode plate.
5. The quick-fill prismatic battery according to claim 4, wherein,
the thickness of the negative electrode coating ranges from 30 micrometers to 200 micrometers.
6. The quick-charge square battery as defined in claim 1, wherein,
the positive electrode coating of the positive electrode plate and the negative electrode coating of the negative electrode plate are arranged oppositely, and the diaphragm covers the positive electrode coating and the negative electrode coating.
7. The quick-charge square battery as defined in claim 1, wherein,
the shell comprises a top plate, a body and a bottom plate;
the body is cylindrical, the top plate is in sealing connection with the opening at one end of the body, and the bottom plate is in sealing connection with the opening at the other end of the body; the negative pole post is arranged on the top plate, and the positive pole post is arranged on the bottom plate.
8. The quick-fill prismatic battery according to claim 7, wherein,
and an explosion-proof valve is arranged on the top plate.
9. The quick-charge square battery as defined in claim 1, wherein,
the positive electrode sheet includes an aluminum foil.
10. The quick-charge square battery as defined in claim 1, wherein,
the negative electrode sheet includes a copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503642.2U CN219677378U (en) | 2022-12-27 | 2022-12-27 | Quick-charging square battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223503642.2U CN219677378U (en) | 2022-12-27 | 2022-12-27 | Quick-charging square battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677378U true CN219677378U (en) | 2023-09-12 |
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ID=87896238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223503642.2U Active CN219677378U (en) | 2022-12-27 | 2022-12-27 | Quick-charging square battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677378U (en) |
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2022
- 2022-12-27 CN CN202223503642.2U patent/CN219677378U/en active Active
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