CN220324498U - Secondary battery - Google Patents
Secondary battery Download PDFInfo
- Publication number
- CN220324498U CN220324498U CN202321457586.5U CN202321457586U CN220324498U CN 220324498 U CN220324498 U CN 220324498U CN 202321457586 U CN202321457586 U CN 202321457586U CN 220324498 U CN220324498 U CN 220324498U
- Authority
- CN
- China
- Prior art keywords
- secondary battery
- cover plate
- battery
- battery according
- soft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 claims abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a secondary battery, which comprises a soft package battery, a shell and a cover plate; adopt detachable construction fixed connection between casing and the apron, and be formed with between casing and the apron and hold the chamber, soft packet of battery is located and holds the intracavity, and it has the utmost point ear hole to open on apron or the casing, and the utmost point ear of soft packet of battery is worn out by holding the intracavity through the utmost point ear hole. The secondary battery has the advantages of good cycle performance, stable state, convenient assembly and disassembly and the like.
Description
Technical Field
The utility model belongs to the technical field of batteries, and particularly relates to a secondary battery.
Background
The soft package battery has been widely used in the consumer electronics field due to its advantages of high energy density, flexible design, high safety, etc.; and under the condition of potential safety hazard, the soft package battery only can blow the gas at most and split, and dangerous situations such as explosion can not take place. However, the pole piece in the soft-packed battery can generate volume expansion in the charge and discharge process, and the soft aluminum plastic film can not restrict the shape of the pole piece, so that the whole battery cell can deform after the pole piece expands, thereby causing the problem of circulating water jump of the battery cell during the circulating charge and discharge and influencing the circulating performance of the soft-packed battery.
Disclosure of Invention
In view of the above, the present utility model discloses a secondary battery to overcome or at least partially solve the above problems.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a secondary battery, which comprises a soft package battery, a shell and a cover plate;
the utility model discloses a battery pack, including casing, cover plate, soft packet battery, shell, cover plate, flexible package battery, shell, cover plate, adopt detachable construction fixed connection between the cover plate, just the casing with be formed with between the cover plate and hold the chamber, the soft packet battery is located hold the intracavity, the cover plate or it has the utmost point ear hole to open on the casing, the utmost point ear of soft packet battery passes through the utmost point ear hole by hold the intracavity and wear out.
Further, a fixing protrusion or a fixing groove is formed in the outer peripheral surface of the cover plate, and a fixing groove or a fixing protrusion matched with the fixing protrusion or the fixing groove is formed in the inner side wall of the accommodating cavity.
Further, a gap between the soft package battery and the shell is 0.15 mm-0.25 mm.
Further, a plurality of through holes are formed in the side wall of the shell.
Further, a protection buffer sheet or a protection buffer strip is filled between the soft package battery and the cover plate.
Further, the material of the protective buffer sheet or the protective buffer strip is polyurethane, polystyrene, modified polypropylene or polyethylene.
Further, the shell is made of aluminum, steel, titanium, nickel, alloy, polyether ether ketone or polyphenylene sulfide.
Further, the cover plate is made of aluminum, steel, titanium, nickel, alloy, polyether ether ketone, polyphenylene sulfide, polypropylene or polyethylene.
Further, the thickness of the shell is 1 mm-20 mm.
Further, rounded corners are arranged on the shell and the cover plate.
The utility model has the advantages and beneficial effects that:
in the secondary battery, the shell is arranged outside the soft-package battery, so that the hard constraint on the shape of the soft-package battery in the charge and discharge process can be realized, the battery core in the soft-package battery is prevented from deforming, the cycle performance of the soft-package battery is further improved, and the state of the soft-package battery is more stable; and moreover, the shell and the cover plate of the secondary battery are fixedly connected by adopting a detachable structure, so that the secondary battery is more convenient to assemble and disassemble.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a perspective view of a secondary battery according to an embodiment of the present utility model;
fig. 2 is a perspective view of a pouch electric cell according to an embodiment of the present utility model;
FIG. 3 is a perspective view of a housing according to an embodiment of the present utility model;
fig. 4 is a perspective view of a cover plate according to an embodiment of the present utility model.
In the figure: 1. a housing; 2. a cover plate; 3. a pole lug hole; 4. a tab; 5. and a fixing groove.
Detailed Description
In order to make 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 specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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.
The following describes in detail the technical solutions provided by the embodiments of the present utility model with reference to the accompanying drawings.
In one embodiment of the present utility model, a secondary battery is disclosed, which includes a pouch battery, a case 1, and a cap plate 2, as shown in fig. 1 to 4. The soft package battery can be a lithium ion battery, a sodium ion battery or a potassium ion battery.
Specifically, the shell 1 and the cover plate 2 are fixedly connected by adopting a detachable structure, so that the shell 1 and the cover plate 2 are convenient to assemble and disassemble, a containing cavity is formed between the shell 1 and the cover plate 2, and the soft-pack battery is positioned in the containing cavity, so that the constraint on the shape of the soft-pack battery is realized, meanwhile, the soft-pack battery can be protected, and the safety of the soft-pack battery is improved; in addition, the shell 1 and the cover plate 2 form a non-sealing accommodating cavity, so that gas generated when the soft package battery is cracked can be conveniently and rapidly leaked, and explosion is prevented; in addition, the cover plate 2 is provided with the lug holes 3, the lugs 4 of the soft-package battery penetrate out of the accommodating cavity through the lug holes 3, and the number of the lug holes 3 is two and the lug holes are respectively used for penetrating out of the positive lug and the negative lug of the soft-package battery. Of course, the number of the lug holes can be one, and the positive lug and the negative lug of the soft package battery penetrate out through the lug holes; the lug holes may also be provided on the housing. Wherein the length of the lug hole is 3 mm-100 mm, and the width of the lug hole is 0.5 mm-10 mm.
In summary, in the secondary battery of the embodiment, by arranging the casing outside the soft-pack battery, hard constraint on the shape of the soft-pack battery in the charge and discharge processes can be realized, and the battery core in the soft-pack battery is prevented from deforming, so that the cycle performance of the soft-pack battery is improved, and the state of the soft-pack battery is more stable; and moreover, the shell and the cover plate of the secondary battery are fixedly connected by adopting a detachable structure, so that the secondary battery is more convenient to assemble and disassemble.
In this embodiment, as shown in fig. 4, a fixing groove 5 is provided on the outer peripheral surface of the cover plate 1, and a fixing protrusion matching with the fixing groove 5 is provided on the inner side wall of the accommodating chamber, i.e., the fixing protrusion is provided on the inner side wall of the housing 2; and the horizontal section shape of the cover plate is smaller than that of the shell, so that the cover plate can be inserted into the shell, and the appearance of the secondary battery is more attractive. When the cover plate is inserted into the shell, the fixing protrusion can be just clamped into the fixing groove, so that the cover plate and the shell are clamped. Wherein, the position and the quantity of fixed recess and fixed protruding can set up as required.
Of course, in other embodiments, the fixing protrusion may be provided on the cover plate and the fixing groove may be provided on the housing.
Further, the gap between the soft package battery and the shell is arranged, so that the soft package battery is conveniently arranged in the shell, and the gap is 0.15-0.25 mm.
In this embodiment, a plurality of through holes are formed on the side wall of the housing; on one hand, the state of the soft package battery can be known through the through hole, and if the soft package battery is subjected to air blowing cracking, the air in the soft package battery can be smoothly released through the through hole, so that the safety of the soft package battery is ensured; on the other hand, the through holes can save the materials used by the shell, so that the production cost of the secondary battery can be saved.
In addition, a protection buffer sheet or a protection buffer strip is filled between the soft package battery and the cover plate and used for buffering and protecting the soft package battery, and meanwhile, the soft package battery can be insulated. In other embodiments, a protective buffer sheet may also be provided between the pouch cell and the case.
Wherein the material of the protective buffer sheet or the protective buffer strip is polyurethane, polystyrene, modified polypropylene or polyethylene. Of course, other materials with cushioning protection may be used for the protective cushioning sheet or strip.
Further, the shell is made of aluminum, steel, titanium, nickel, alloy, polyether ether ketone or polyphenylene sulfide; the cover plate is made of aluminum, steel, titanium, nickel, alloy, polyether-ether-ketone, polyphenylene sulfide, polypropylene or polyethylene. Of course, other hard materials may be used for the housing and cover.
In this embodiment, the thickness of the case is 1mm to 20mm, which not only restrains the shape of the pouch battery but also makes the secondary battery more compact.
In addition, be equipped with the chamfer on casing and the apron, can prevent casing and apron damage soft packet of battery, also make the appearance of secondary cell more pleasing to the eye simultaneously. Wherein the radius of the rounded circle is preferably 1 mm-10 mm.
The foregoing is merely a specific embodiment of the utility model and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the utility model more fully, and that the scope of the utility model is defined by the appended claims.
Claims (10)
1. A secondary battery, characterized by comprising a soft package battery, a shell and a cover plate;
the utility model discloses a battery pack, including casing, cover plate, soft packet battery, shell, cover plate, flexible package battery, shell, cover plate, adopt detachable construction fixed connection between the cover plate, just the casing with be formed with between the cover plate and hold the chamber, the soft packet battery is located hold the intracavity, the cover plate or it has the utmost point ear hole to open on the casing, the utmost point ear of soft packet battery passes through the utmost point ear hole by hold the intracavity and wear out.
2. The secondary battery according to claim 1, wherein a fixing protrusion or a fixing groove is provided on an outer circumferential surface of the cap plate, and a fixing groove or a fixing protrusion is provided on an inner sidewall of the receiving chamber to be engaged with the fixing protrusion or the fixing groove.
3. The secondary battery according to claim 1, wherein a gap between the pouch battery and the case is provided, and the gap is 0.15mm to 0.25mm.
4. The secondary battery according to claim 1, wherein a plurality of through holes are opened on a side wall of the case.
5. The secondary battery according to claim 1, wherein a protective buffer sheet or a protective buffer strip is filled between the pouch battery and the cap plate.
6. The secondary battery according to claim 5, wherein the material of the protective buffer sheet or the protective buffer strip is polyurethane, polystyrene, modified polypropylene or polyethylene.
7. The secondary battery according to claim 1, wherein the material of the case is aluminum, steel, titanium, nickel, alloy, polyetheretherketone, or polyphenylene sulfide.
8. The secondary battery according to claim 1, wherein the cap plate is made of aluminum, steel, titanium, nickel, alloy, polyetheretherketone, polyphenylene sulfide, polypropylene or polyethylene.
9. The secondary battery according to claim 1, wherein the thickness of the case is 1mm to 20mm.
10. The secondary battery according to any one of claims 1 to 9, wherein rounded corners are provided on the case and the cap plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457586.5U CN220324498U (en) | 2023-06-08 | 2023-06-08 | Secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457586.5U CN220324498U (en) | 2023-06-08 | 2023-06-08 | Secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220324498U true CN220324498U (en) | 2024-01-09 |
Family
ID=89414445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321457586.5U Active CN220324498U (en) | 2023-06-08 | 2023-06-08 | Secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220324498U (en) |
-
2023
- 2023-06-08 CN CN202321457586.5U patent/CN220324498U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 601, Building B, Hanyu Innovation Industry Building, No. 7 Guansheng Fourth Road, Gaoxin Park, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province, 518110 Patentee after: Shenzhen Xinjie Energy Technology Co.,Ltd. Address before: Room 601, Building B, Hanyu Innovation Industry Building, No. 7 Guansheng Fourth Road, Gaoxin Park, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province, 518110 Patentee before: Shenzhen Xinshijie Technology Co.,Ltd. |