CN210200774U - Battery case and battery - Google Patents
Battery case and battery Download PDFInfo
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- CN210200774U CN210200774U CN201920737983.5U CN201920737983U CN210200774U CN 210200774 U CN210200774 U CN 210200774U CN 201920737983 U CN201920737983 U CN 201920737983U CN 210200774 U CN210200774 U CN 210200774U
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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
Abstract
The utility model relates to a battery field provides a battery case and battery, battery case include down casing and seal installation in the last casing of casing down, go up the casing with be formed with between the casing down and hold the cavity, hold and be provided with the elastic pressing plate and the layer board of mutual disposition in the cavity. Battery case simple structure, easy dismounting, can fast assembly form simple and easy battery, be particularly suitable for carrying out the battery test in the battery development stage, can simple and convenient swift carry out full battery material system contrast, shorten battery development cycle, improve the market competition of battery.
Description
Technical Field
The utility model relates to a battery field, in particular to battery shell and battery.
Background
Batteries are common energy storage devices at present, particularly lithium ion batteries, and are widely applied to the fields of electronics, automobiles and the like due to the advantages of high energy density, high average output voltage and the like. In the development process of the battery, the development cost of the lithium ion battery is directly influenced by the length of the development period of the battery, and the updating period of the product is also influenced by the long development period, so that the market competitiveness of the battery is influenced.
Currently, the evaluation of lithium ion battery materials is mainly performed by button cells and pouch cells, and the materials are evaluated according to test data. Button cells are often used for comparative material evaluation, usually in the form of half cells, involving fewer variables, and the measured data differ somewhat from full cells. In addition, the assembly of the button cell needs to be carried out in a glove box, the operation is inconvenient, and the assembly steps are complicated. The soft package battery is more used for system evaluation, various parameters of the soft package battery are closer to the final design of a product, the performance of the battery material can reflect the matching degree of the system, but the soft package battery is complex in manufacturing process, long in manufacturing period, and various devices and tools are involved in the manufacturing process, so that the manufacturing cost is high.
It would therefore be desirable to have a battery that overcomes or at least alleviates the above-mentioned disadvantages of the prior art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a battery casing for facilitating the rapid assembly of a battery.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a battery shell comprises a lower shell and an upper shell which is hermetically arranged on the lower shell, wherein an accommodating cavity is formed between the upper shell and the lower shell, and an elastic pressing plate and a supporting plate which are oppositely arranged are arranged in the accommodating cavity.
Furthermore, the elastic pressure plate is mounted on the upper shell, and the supporting plate is mounted on the lower shell.
Furthermore, the elastic pressing plate comprises a plate body and a spring arranged between the plate body and the inner wall of the upper shell.
Further, a sealing ring arranged along the circumferential direction of the upper shell is arranged between the upper shell and the lower shell; and/or the upper shell, the lower shell, the plate body of the elastic pressure plate and/or the supporting plate are made of plastic.
Furthermore, positioning holes are formed in the elastic pressing plate and/or the supporting plate; and/or the upper shell is provided with an air guide liquid filling through hole.
Compared with the prior art, battery case have following advantage:
battery case simple structure, easy dismounting, can fast assembly form simple and easy battery, be particularly suitable for carrying out the battery test in the battery development stage, can simple and convenient swift carry out full battery material system contrast, shorten battery development cycle, improve the market competition of battery.
Another object of the present invention is to provide a battery, which can be assembled quickly.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a battery is provided with the battery shell according to the above, a positive plate and a negative plate which are arranged in a stacked mode and a diaphragm arranged between the positive plate and the negative plate are arranged in an accommodating cavity of the battery shell, and the positive plate, the negative plate and the diaphragm are tightly pressed on a supporting plate through an elastic pressing plate.
Further, the battery includes: one end of the positive pole adapter sheet is electrically connected with the electric connection terminal of the positive pole sheet, and the other end of the positive pole adapter sheet extends to the outside of the battery shell; and one end of the negative pole adapter sheet is connected with the electric connection terminal of the negative pole sheet, and the other end of the negative pole adapter sheet extends to the outside of the battery shell.
Furthermore, an upper mounting flange is formed on the periphery of the upper shell, a lower mounting flange is formed on the periphery of the lower shell, the upper mounting flange is mounted on the lower mounting flange through a threaded fastener, an upper sealing ring and a lower sealing ring which are arranged in a stacked mode are arranged between the upper mounting flange and the lower mounting flange, and the positive pole adapter sheet and the negative pole adapter sheet extend through the space between the upper sealing ring and the lower sealing ring.
Furthermore, the positive pole adapter plate is fixed on the positive pole plate through a positive pole conductive bolt, the negative pole adapter plate is fixed on the negative pole plate through a negative pole conductive bolt, and a positioning hole corresponding to the positive pole conductive bolt and/or the negative pole conductive bolt is formed on the elastic pressing plate and/or the supporting plate; and/or the positive pole switching piece is fixed on the positive pole piece through a positive pole conductive clamp, the negative pole switching piece is fixed on the negative pole piece through a negative pole conductive clamp, and the elastic pressing plate and/or the supporting plate are/is provided with positioning holes corresponding to the positive pole conductive clamp and/or the negative pole conductive clamp.
Further, the size of negative pole piece is less than the elastic pressure plate with the size of tray, the size of positive pole piece is less than the size of negative pole piece, the size of diaphragm is greater than the size of negative pole piece.
The advantages of the battery are the same as those of the battery shell in the prior art, and the description is omitted.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of a battery according to an embodiment of the present invention;
fig. 2 is an exploded view of the battery shown in fig. 1;
fig. 3 is a partially enlarged schematic view of a portion a of the battery shown in fig. 1.
Description of reference numerals:
1-upper shell, 11-elastic pressing plate, 12-spring, 13-plate body, 131-upper positioning hole, 14-upper mounting flange, 15-air guide liquid filling through hole, 2-lower shell, 21-supporting plate, 211-lower positioning hole, 22-lower mounting flange, 3-positive plate, 4-negative plate, 5-diaphragm, 6-upper sealing ring, 7-lower sealing ring, 8-positive adapter plate, 81-positive conducting bolt, 9-negative adapter plate, 91-negative conducting bolt and 10-threaded fastener.
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
According to an aspect of the present invention, a battery casing is provided, referring to fig. 1 and fig. 2, the battery casing includes a lower casing 2 and an upper casing 1 hermetically mounted on the lower casing 2, a containing chamber is formed between the upper casing 1 and the lower casing 2, and an elastic pressing plate 11 and a supporting plate 21 are disposed in the containing chamber and are oppositely disposed.
The battery shell is simple in structure and convenient to disassemble and assemble, can be quickly assembled to form a simple battery, is particularly suitable for battery tests in a battery development stage, can simply, conveniently and quickly perform full battery material system comparison, shortens the battery development period and improves the market competitiveness of the battery.
The mounting positions of the elastic pressing plate 11 and the supporting plate 21 can be properly selected according to actual needs, and the elastic pressing plate and the supporting plate can ensure that the elastic pressing plate and the supporting plate can tightly press the electrode plate placed between the elastic pressing plate and the supporting plate after the battery shell is assembled. Preferably, the elastic pressing plate 11 is installed on the upper shell 1, the supporting plate 21 is installed on the lower shell 2, and the supporting plate 21 is stable and reliable and facilitates the arrangement of the electrode plates during assembly.
The specific structure of the elastic pressing plate 11 can be selected according to actual needs, for example, the elastic pressing plate 11 is made of rubber material so that it has a certain elastic deformation. Further, the elastic pressing plate 11 includes a plate body 13 and a spring 12 disposed between the plate body 13 and the inner wall of the upper casing 1, so that the area and the shape of the elastic pressing plate 11 are always consistent, and the magnitude of the elastic force applied to the electrode plate located between the elastic pressing plate 11 and the supporting plate 21 is conveniently controlled.
The sealing manner between the upper shell 1 and the lower shell 2 can be selected in any appropriate direction according to actual needs. Further, a sealing ring arranged along the circumferential direction of the upper shell 1 is arranged between the upper shell 1 and the lower shell 2, so that the sealing performance between the upper shell 1 and the lower shell 2 is improved.
The materials of the upper casing 1, the lower casing 2, the plate body 13 of the elastic pressing plate 11 and the supporting plate 21 can be properly selected according to actual needs, for example, aluminum, steel, rubber, plastic, etc., and the five components can be made of the same material, or different materials can be selected according to use requirements. Further, the upper shell 1, the lower shell 2, the plate body 13 of the elastic pressing plate 11 and/or the supporting plate 21 are made of plastic, so that the molding is easy, complex processing equipment is not needed, the manufacturing cost is low, and no additional insulation treatment is needed due to the insulation property of the plastic. In the illustrated preferred embodiment, the upper case 1, the lower case 2, the plate body 13 of the elastic pressing plate 11, and the support plate 21 are all made of plastic.
Further, the elastic pressing plate 11 and/or the supporting plate 21 are/is formed with positioning holes to facilitate positioning and installation of the electrode plates arranged therebetween, wherein the positioning holes are optionally formed on one or both of the elastic pressing plate 11 and the supporting plate 21 as required.
Furthermore, the upper shell 1 is provided with an air guide liquid filling through hole 15, a certain amount of electrolyte can be injected into the accommodating cavity through the air guide liquid filling hole 15 after the battery shell is assembled, then the inside of the accommodating cavity is vacuumized, and then the air guide liquid filling through hole 15 is sealed, so that the battery can be conveniently filled with liquid and vacuumized, and in the process of battery test, the air guide liquid filling through hole 15 can be opened to analyze the gas production component and the gas production amount in the battery.
According to the utility model discloses a further aspect provides a battery, the battery is provided with according to the above battery case, battery case hold and be provided with range upon range of positive plate 3, the negative pole piece 4 who arranges and set up the diaphragm 5 between positive plate 3 and negative pole piece 4 in the cavity, elastic pressure plate 11 compresses tightly positive plate 3, negative pole piece 4 and diaphragm 5 in layer board 21.
The battery is simple in structure, convenient to assemble and disassemble, capable of being assembled quickly to form a simple battery, particularly suitable for battery tests in a battery development stage, capable of simply, conveniently and quickly comparing full battery material systems, shortening the development period of the battery and improving the market competitiveness of the battery. Specifically, the positive electrode plate 3 and the negative electrode plate 4 are respectively electrically connected with a testing device, so that operations such as pre-charging, formation, testing and the like can be performed, and thus relevant performance data of the battery can be acquired.
The electrical connection terminals on the positive and negative electrode tabs 3 and 4 of the battery may be directly connected to the test device, but the direct connection to the test device is inconvenient because the electrical connection terminals on the positive and negative electrode tabs 3 and 4 are generally low in hardness and limited in size. Further, the battery includes: one end of the positive pole adapter sheet 8 is electrically connected with the electric connection terminal of the positive pole sheet 3, and the other end of the positive pole adapter sheet 8 extends to the outside of the battery shell; and a negative adapter plate 9, wherein one end of the negative adapter plate 9 is connected with the electric connection terminal of the negative plate 4, and the other end of the negative adapter plate 9 extends to the outside of the battery shell, so that the battery is conveniently and electrically connected with the testing device.
Further, the periphery of the upper shell 1 is provided with an upper mounting flange 14, the periphery of the lower shell 2 is provided with a lower mounting flange 22, the upper mounting flange 14 is mounted on the lower mounting flange 22 through a threaded fastener 10, an upper sealing ring 6 and a lower sealing ring 7 which are arranged in a stacked mode are arranged between the upper mounting flange 14 and the lower mounting flange 22, and the positive pole adapter sheet 8 and the negative pole adapter sheet 9 extend through between the upper sealing ring 6 and the lower sealing ring 7 to guarantee the sealing performance of the battery.
The fixing mode of the positive electrode adaptor sheet 8 and the positive electrode sheet 3 and the fixing mode of the negative electrode adaptor sheet 9 and the negative electrode sheet 4 can be properly selected according to actual needs. Further, referring to fig. 1 and 2, the positive electrode adapter sheet 8 is fixed to the positive electrode sheet 3 through the positive electrode conductive bolt 81, the negative electrode adapter sheet 9 is fixed to the negative electrode sheet 4 through the negative electrode conductive bolt 91, and the elastic pressing plate 11 and/or the supporting plate 21 are/is provided with positioning holes corresponding to the positive electrode conductive bolt 81 and/or the negative electrode conductive bolt 91.
Optionally, the positive electrode adaptor piece 8 is fixed to the positive electrode piece 3 through a positive electrode conductive clip, the negative electrode adaptor piece 9 is fixed to the negative electrode piece 4 through a negative electrode conductive clip, and a positioning hole corresponding to the positive electrode conductive clip and/or the negative electrode conductive clip is formed on the elastic pressing plate 11 and/or the supporting plate 21. The user can select a proper mode according to actual needs.
Further, referring to fig. 2 and 3, the size of the negative electrode plate 4 is smaller than the size of the elastic pressing plate 11 and the supporting plate 2, so that the negative electrode plate 4 is pressed by the elastic pressing plate 11, the size of the positive electrode plate 3 is smaller than the size of the negative electrode plate 4, so that the coating area of the negative electrode plate 4 can completely cover the positive electrode plate 3 with a certain margin, and the size of the diaphragm 5 is larger than the size of the negative electrode plate 4, so that the diaphragm 9 can completely cover the negative electrode plate 4 with a certain margin.
In the manufacturing process, after the positive plate 3 and the negative plate 4 are rolled according to design parameters, the positive plate and the negative plate 4 are cut into proper shapes with the sizes smaller than the elastic pressing plate 11 and the supporting plate 21 by a cutter, so that the size of the negative plate 4 is ensured to be larger than that of the positive plate 3, and the coating area of the negative plate 4 can completely cover the positive plate 3 and has certain margin. And cutting the diaphragm 9 corresponding to the shapes of the positive and negative pole pieces by using a cutter, and ensuring that the size of the diaphragm 9 is larger than that of the negative pole piece 4, so that the diaphragm 9 can completely cover the negative pole piece 4 and has a certain margin.
The materials of the positive electrode sheet 3, the negative electrode sheet 4, and the separator 9 may be appropriately selected according to actual needs, for example, the positive electrode sheet 3 is aluminum, the negative electrode sheet 4 is copper, and the separator 9 is a woven film, a non-woven film (non-woven fabric), a microporous film, a composite film, a separator paper, a rolled film, or the like. The positive electrode tab 8, the positive electrode conductive bolt 81, and the positive electrode conductive clip are preferably made of the same material as the positive electrode sheet 3, and the negative electrode tab 9, the negative electrode conductive bolt 91, and the negative electrode conductive clip are preferably made of the same material as the negative electrode sheet 4.
The number of electrode sheets included in the battery can be appropriately selected according to actual needs, and referring to fig. 1 and 3, in the illustrated embodiment, two negative electrode sheets 4 and one positive electrode sheet 3 sandwiched between the negative electrode sheets 4 are included, wherein a separator 9 is disposed between the positive electrode sheet 3 and the negative electrode sheet 4.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The battery shell is characterized by comprising a lower shell (2) and an upper shell (1) which is hermetically mounted on the lower shell (2), wherein an accommodating cavity is formed between the upper shell (1) and the lower shell (2), and an elastic pressing plate (11) and a supporting plate (21) which are oppositely arranged are arranged in the accommodating cavity.
2. The battery case according to claim 1, wherein the elastic pressing plate (11) is mounted to the upper case (1) and the support plate (21) is mounted to the lower case (2).
3. The battery case according to claim 2, wherein the elastic pressing plate (11) comprises a plate body (13) and a spring (12) disposed between the plate body (13) and an inner wall of the upper case (1).
4. The battery case according to any one of claims 1 to 3,
a sealing ring arranged along the circumferential direction of the upper shell (1) is arranged between the upper shell (1) and the lower shell (2); and/or
The upper shell (1), the lower shell (2), the plate body (13) of the elastic pressure plate (11) and/or the supporting plate (21) are made of plastics.
5. The battery case according to any one of claims 1 to 3,
positioning holes are formed in the elastic pressing plate (11) and/or the supporting plate (21); and/or
An air guide liquid filling through hole (15) is formed in the upper shell (1).
6. A battery, characterized in that, the battery is provided with a battery shell according to any one of claims 1-5, a positive plate (3), a negative plate (4) and a diaphragm (5) arranged between the positive plate (3) and the negative plate (4) are arranged in a lamination way in the containing chamber of the battery shell, and the elastic pressing plate (11) presses the positive plate (3), the negative plate (4) and the diaphragm (5) to the supporting plate (21).
7. The battery of claim 6, wherein the battery comprises:
the battery comprises a positive electrode adapter sheet (8), one end of the positive electrode adapter sheet (8) is electrically connected with an electric connection terminal of the positive electrode sheet (3), and the other end of the positive electrode adapter sheet (8) extends to the outside of the battery shell; and
the battery comprises a negative pole adapter sheet (9), one end of the negative pole adapter sheet (9) is connected with an electric connection terminal of the negative pole sheet (4), and the other end of the negative pole adapter sheet (9) extends to the outside of the battery shell.
8. The battery according to claim 7, wherein an upper mounting flange (14) is formed on the outer periphery of the upper case (1), a lower mounting flange (22) is formed on the outer periphery of the lower case (2), the upper mounting flange (14) is mounted to the lower mounting flange (22) by a threaded fastener (10), an upper seal ring (6) and a lower seal ring (7) are arranged in a stacked manner between the upper mounting flange (14) and the lower mounting flange (22), and the positive adapter plate (8) and the negative adapter plate (9) extend through between the upper seal ring (6) and the lower seal ring (7).
9. The battery according to claim 7,
the positive electrode adapter plate (8) is fixed on the positive electrode plate (3) through a positive electrode conductive bolt (81), the negative electrode adapter plate (9) is fixed on the negative electrode plate (4) through a negative electrode conductive bolt (91), and positioning holes corresponding to the positive electrode conductive bolt (81) and/or the negative electrode conductive bolt (91) are formed in the elastic pressing plate (11) and/or the supporting plate (21); and/or
Anodal switching piece (8) are fixed in through anodal conductive clip anodal piece (3), negative pole switching piece (9) are fixed in through negative pole conductive clip negative pole piece (4), elastic pressing plate (11) and/or be formed with on layer board (21) with anodal conductive clip and/or the locating hole that negative pole conductive clip corresponds.
10. The battery according to any one of claims 6 to 9, wherein the size of the negative electrode tab (4) is smaller than the size of the elastic pressure plate (11) and the support plate (21), the size of the positive electrode tab (3) is smaller than the size of the negative electrode tab (4), and the size of the separator (5) is larger than the size of the negative electrode tab (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920737983.5U CN210200774U (en) | 2019-05-21 | 2019-05-21 | Battery case and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920737983.5U CN210200774U (en) | 2019-05-21 | 2019-05-21 | Battery case and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210200774U true CN210200774U (en) | 2020-03-27 |
Family
ID=69875817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920737983.5U Active CN210200774U (en) | 2019-05-21 | 2019-05-21 | Battery case and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210200774U (en) |
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2019
- 2019-05-21 CN CN201920737983.5U patent/CN210200774U/en active Active
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