CN204333047U - A kind of cylinder lithium cell box hat - Google Patents
A kind of cylinder lithium cell box hat Download PDFInfo
- Publication number
- CN204333047U CN204333047U CN201420574656.XU CN201420574656U CN204333047U CN 204333047 U CN204333047 U CN 204333047U CN 201420574656 U CN201420574656 U CN 201420574656U CN 204333047 U CN204333047 U CN 204333047U
- Authority
- CN
- China
- Prior art keywords
- box hat
- cylinder lithium
- wall
- lithium cell
- cell box
- 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.)
- Expired - Lifetime
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002815 nickel Chemical class 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a kind of cylinder lithium cell box hat, belong to the application of 18650 cylinder lithium electricity, the overall diameter of its outer wall is between 18.08mm to 18.12mm, and thickness is between 0.218mm to 0.222mm, is highly between 68.28mm to 68.32mm.Because the little box hat of the conventional straight barrel type of its similar, processing characteristics is good, slot rolling and sealing fraction defective be less than ten thousand/, and the similar routine of its overall dimension becomes the large box hat of wall-shaped, improve the internal capacity of 18650 type cylinder lithium cells, capacity and performance that its spatiality promotes 18650 type cylinder lithium cells can be given full play to.
Description
Technical field
The utility model relates to a kind of battery case, particularly a kind of cylinder lithium cell box hat.
Background technology
The box hat that current 18650 cylinder lithium electricity manufacturing industry use mostly is: the little box hat of straight barrel type of overall diameter 18.0mm, height 68.3mm, thickness 0.22mm specification, and the large box hat of change wall-shaped of overall diameter 18.15mm, highly 68.5mm, thickness 0.22mm specification.
The little box hat good processability of the straight barrel type used in the market, but little capacity and the performance that can not give full play to 18650 type lithium cells of volume, it is mainly used in the battery core product that below below 18650-2200mAh capacity and 1C multiplying power are discharged.
And the large box hat poor processability of the change wall-shaped used in the market, but large capacity and the performance that can give full play to 18650 type lithium cells of volume, it is mainly used in the battery core product that more than more than 18650-2200mAh capacity or 1C multiplying power are discharged.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of cylinder lithium cell box hat, and this box hat can solve the problem that existing 18650 type lithium cell box hats cannot take into account capacity and processing characteristics.
For solving the problem, the technical scheme that the utility model adopts is as follows:
A kind of cylinder lithium cell box hat, the overall diameter of the outer wall of described cylinder lithium cell box hat is between 18.08mm to 18.12mm, and thickness is between 0.218mm to 0.222mm, be highly 68.28mm to 68.32mm it
Preferably, the overall diameter of described outer wall is 18.1mm.
Preferably, the thickness of described outer wall is 0.22mm.
Preferably, the height of described outer wall is 68.3mm.
Preferably, the surfaces externally and internally of described outer wall is coated with nickel dam.
Preferably, the thickness of described nickel dam is 2um to 8um.
Compared to existing technology, the beneficial effects of the utility model are:
1, because the little box hat of the conventional straight barrel type of its similar, processing characteristics is good, and slot rolling and sealing fraction defective be less than ten thousand/;
2, because the similar routine of its overall dimension becomes the large box hat of wall-shaped, improve the internal capacity of 18650 type cylinder lithium cells, capacity and performance that its spatiality promotes 18650 type cylinder lithium cells can be given full play to.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Reference numeral is as follows:
1, outer wall.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The little box hat good processability of conventional straight barrel type, slot rolling and sealing fraction defective be less than ten thousand/, but the capacity of battery core and performance cannot promote further because of the limitation of internal capacity.
And the large box hat of conventional change wall-shaped is because the change of box hat slot rolling place thickness, cause it unstable in slot rolling operation processing characteristics, easily cause battery core slot rolling directly to roll to split box hat and scrap, or after slot rolling, faucal turns up sealing process difficulty is increased, ratio of scrapping rises and reaches more than one thousandth.
For above-mentioned situation, the utility model discloses a kind of cylinder lithium cell box hat, as shown in Figure 1, the overall diameter of the outer wall 1 of described cylinder lithium cell box hat is between 18.08mm to 18.12mm, thickness is between 0.218mm to 0.222mm, is highly between 68.28mm to 68.32mm.
Preferably, the overall diameter of above-mentioned outer wall 1 is preferably 18.1mm, and thickness is preferably 0.22mm, is highly preferably 68.3mm.
In addition, be all coated with nickel dam at the surfaces externally and internally of described outer wall 1, the thickness of this nickel dam is preferably 2um to 8um.
After tested, following data can be drawn:
1, the overall diameter of outer wall 1 is 18.0mm, is highly 68.3mm, thickness 0.22mm, its processing pass rate >99.99%, and battery capacity is below 2200mAh;
2, the overall diameter of outer wall 1 is 18.0mm, is highly 68.7mm, thickness 0.22mm, its processing pass rate >99.99%, and battery capacity is more than 2200mAh;
3, the overall diameter of outer wall 1 is 18.15mm, is highly 68.5mm, thickness 0.22mm, and its processing pass rate <99.9%, battery capacity is more than 2200mAh.
Obviously, adopt overall diameter 18.1mm, the straight barrel type box hat of height 68.3mm, thickness 0.22mm specification is processed 18650 type cylinder lithium cells and is had the following advantages:
1, because the little box hat of the conventional straight barrel type of its similar, processing characteristics is good, and slot rolling and sealing fraction defective be less than ten thousand/;
2, because the similar routine of its overall dimension becomes the large box hat of wall-shaped, improve the internal capacity of 18650 type cylinder lithium cells, capacity and performance that its spatiality promotes 18650 type cylinder lithium cells can be given full play to.
Above-mentioned execution mode is only preferred implementation of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.
Claims (6)
1. a cylinder lithium cell box hat, is characterized in that: the overall diameter of the outer wall of described cylinder lithium cell box hat is between 18.08mm to 18.12mm, and thickness is between 0.218mm to 0.222mm, is highly between 68.28mm to 68.32mm.
2. cylinder lithium cell box hat according to claim 1, is characterized in that: the overall diameter of described outer wall is 18.1mm.
3. cylinder lithium cell box hat according to claim 2, is characterized in that: the thickness of described outer wall is 0.22mm.
4. cylinder lithium cell box hat according to claim 3, is characterized in that: the height of described outer wall is 68.3mm.
5. the cylinder lithium cell box hat according to any one of Claims 1-4, is characterized in that: the surfaces externally and internally of described outer wall is coated with nickel dam.
6. cylinder lithium cell box hat according to claim 5, is characterized in that: the thickness of described nickel dam is 2um to 8um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574656.XU CN204333047U (en) | 2014-09-30 | 2014-09-30 | A kind of cylinder lithium cell box hat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420574656.XU CN204333047U (en) | 2014-09-30 | 2014-09-30 | A kind of cylinder lithium cell box hat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204333047U true CN204333047U (en) | 2015-05-13 |
Family
ID=53169369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420574656.XU Expired - Lifetime CN204333047U (en) | 2014-09-30 | 2014-09-30 | A kind of cylinder lithium cell box hat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204333047U (en) |
-
2014
- 2014-09-30 CN CN201420574656.XU patent/CN204333047U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150513 |