CN201266637Y - Battery current collector and battery containing the same - Google Patents
Battery current collector and battery containing the same Download PDFInfo
- Publication number
- CN201266637Y CN201266637Y CNU2008200961259U CN200820096125U CN201266637Y CN 201266637 Y CN201266637 Y CN 201266637Y CN U2008200961259 U CNU2008200961259 U CN U2008200961259U CN 200820096125 U CN200820096125 U CN 200820096125U CN 201266637 Y CN201266637 Y CN 201266637Y
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- Prior art keywords
- current collector
- battery
- battery current
- protuberance
- hole
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- Expired - Fee Related
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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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- Cell Electrode Carriers And Collectors (AREA)
Abstract
The utility model discloses a battery current collector which is a sheet metal board. The battery current collector is provided with a through hole, the edge of which is provided with a protrusion part; the utility model also discloses a battery, which comprises a shell body, a cap for sealing the battery shell body, a winding electrode core which is sealed in the shell body and consists of an anode sheet, a diaphragm and a cathode sheet which are stacked and electrolyte, the bottom of the shell body also comprises the sheet battery current collector which is provided with the through hole, the edge of the through hole is provided with the protrusion part which contacts with a winding cathode core. The protrusion part increases the electric conductivity of the battery current collector and the battery shell body, reduces the internal resistance of the battery effectively and increases the consistency of a single battery and the discharging performance of large current of a battery group.
Description
Technical field
The utility model relates to battery, more particularly, relates to a kind of battery current collector and contains the battery of this battery current collector.
Background technology
At present, in order to make the secondary tools battery in use have good heavy-current discharge performance, generally header assemblies is set at Battery Pole Core both positive and negative polarity end face, negative pole currect collecting device (generally adopting the material of good conductivity to make cylindrical connector) welds together as battery cathode with housing bottom again, and the anode collection device welds together as anode by a lug and positive terminal.Current collector mainly plays the afflux effect, can effectively reduce the internal resistance of cell, improves the heavy-current discharge performance of cell discharge consistency and battery pack.
The utility model content
Inventor of the present utility model finds there is contact resistance between existing negative pole currect collecting device and the battery container through repeatedly research and experiment, has increased the internal resistance of cell, has influenced cell discharge performance; Once more, when the negative pole currect collecting device is connected instability with battery container, can cause internal resistance of single cell bigger than normal, though current collector can afflux, but since the electric current on the current collector can not stable flow to battery container as the cell cathode output end, the internal resistance of whole cell and discharge consistency will be subjected to very big influence, can cause the whole battery group discharge instability when serious, not even discharge, the heavy-current discharge performance of this class formation battery has certain defective.
The purpose of this utility model is to overcome the defective that conventional batteries can not heavy-current discharge, and a kind of a kind of battery current collector that can heavy-current discharge is provided.
The utility model provides a kind of battery current collector, and described battery current collector is a sheet metal plate, and described battery current collector is provided with through hole, and described through hole edge is provided with protuberance.
As further improvement, described protuberance is arranged on the one side or two sides of battery current collector.
As further improvement, described protuberance is zigzag or ring-type.
As further improvement, also be provided with dashpot on the described battery current collector.
As further improvement, described dashpot is a U-shaped.
As further improvement, also be provided with splitter box on the battery current collector.
As further improvement, described through-hole diameter is 0.5-8mm.
As further improvement, described projecting part height is 0.1-1mm.
The utility model provides a kind of battery, this battery comprises the block of housing, a sealed cell housing, and be sealed in the housing by anode pole piece, barrier film, stacked rolled electrode cores and the electrolyte of forming of cathode pole piece, described housing bottom also comprises a sheet battery current collector, described battery current collector is provided with through hole, described through hole edge is provided with protuberance, and described protuberance contacts with rolled negative pole core.
As further improvement, described protuberance is arranged on the one side or two sides of battery current collector.
As further improvement, protuberance of described battery current collector contacts with the battery container bottom, and the another side protuberance contacts with rolled negative pole core.
As further improvement, described protuberance is zigzag or ring-type, and described projecting part height is 0.1-1mm.
As further improvement, described through-hole diameter is 0.5-8mm.
As further improvement, also be provided with dashpot and/or splitter box on the described battery current collector.
A kind of battery current collector that the utility model provides, described battery current collector are sheet metal plate, and described battery current collector is provided with through hole, and described through hole edge is provided with protuberance; Owing to the protuberance setting, strengthened the conductivity of battery current collector and battery container, reduced the internal resistance of cell effectively, improve cell consistency and battery pack heavy-current discharge performance.
Description of drawings
The single face protuberance battery current collector structural plan schematic diagram that Fig. 1 provides for the utility model;
Fig. 2 is the stereogram of Fig. 1;
The two-sided protuberance battery current collector structural plan schematic diagram that Fig. 3 provides for the utility model;
The stereogram of this Fig. 3 of Fig. 4;
A kind of battery that Fig. 5 provides for the utility model partly cut open schematic diagram;
Fig. 6 is the local enlarged diagram of two-sided protuberance battery current collector of the present utility model;
Fig. 7 is that the utility model embodiment and Comparative Examples battery fraction defective compare schematic diagram.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model provide a kind of battery current collector 1, and described battery current collector 1 is a sheet metal plate, and described battery current collector 1 is provided with through hole 2, and described through hole 2 edges are provided with protuberance 3.
Provide a kind of battery current collector 1 according to the utility model, described protuberance 3 is arranged on the one side or two sides of battery current collector 1, protuberance 3 is zigzag or ring-type, generally select ring-type for use, on battery current collector 1 of the present utility model, also be provided with the U-shaped dashpot of spot welding power when being used to cushion the spot welding battery current collector, also be provided with the splitter box 12 that is used to shunt on the battery current collector 1, described splitter box 12 is generally 1-5, preferred 2 of the utility model.
In the battery current collector 1 that the utility model provides, the method preparation that the through hole 2 of described battery current collector 1 can adopt mechanical field to know is arbitrarily perhaps made with methods such as punching presses; Described through-hole diameter is 0.5-8mm, and the method preparation that the protuberance 3 of described battery current collector 1 also can adopt mechanical field to know is arbitrarily perhaps made with methods such as punching presses, and described protuberance height is 0.1-1mm.
The internal diameter of described battery current collector 1 (being generally circle) can be decided according to the kind and the preparation needs of battery, and according to specific embodiments of the present utility model, the internal diameter of described battery current collector 1 is the 10-80 millimeter, is preferably 20 millimeters.
The thickness of described battery current collector 1 can be decided according to the kind and the preparation needs of battery, and according to the novel specific embodiments of this reality, the thickness of described battery current collector 1 is the 0.05-5 millimeter, is preferably 0.2 millimeter.
Described battery current collector 1 can adopt various electric conducting material well known in the art to make, as conductive metals such as aluminium, copper, steel, iron; Can determine according to battery size.
The battery current collector 1 that the utility model provides can be used for various batteries, as primary cell, and the battery current collector 1 of secondary cell, particularly alkaline secondary cell.
The method that battery current collector 1 and battery container method of attachment adopt mechanical field to know arbitrarily is as adopting the method connection of welding or riveted joint.
The utility model also provides a kind of battery, as shown in Figure 8, this battery comprise housing 4 and be sealed in the housing by anode pole piece 5, barrier film 6, cathode pole piece 7 stacked rolled electrode cores of forming and electrolyte (not shown), battery container 4 is a negative pole end, material nickel plating box hat; Electrolyte plays the connection effect, is mixed by potassium hydroxide, sodium hydroxide solution, and 6 in its barrier film is isolated positive negative action, and composition is fine fibre, specialty fibers (high temperature resistant, soda acid), viscose fibre composition; Also comprise a battery cap, its battery cap is anodal exit, also comprises an explosion-proof ball 9, and explosion-proof ball 9 is arranged in the middle of bottom 10 and the last cap 8, according to battery provided by the utility model, also comprises other necessary assembly that alkaline secondary cell is required.Described electrolyte, anode pole piece 5, cathode pole piece 7 and the barrier film 6 between anode pole piece 5 and cathode pole piece 7 are sealed in the battery container 4 jointly.The coiling or the laminating method of anode pole piece 5, cathode pole piece 7 and the barrier film 6 between anode pole piece 5 and cathode pole piece 7, and the assembly method of battery is conventionally known to one of skill in the art, do not repeat them here.
Embodiment 1: the single face battery current collector
The making of single face battery current collector, the method preparation of the through hole 2 of described single face battery current collector 1 and protuberance 3 usefulness punching presses thereof, (Fig. 1 is first kind of embodiment of the present utility model), and through-hole diameter is 5mm, and protuberance 3 is an annular, and protuberance 3 highly is 0.5mm.
Battery is made: combine with general nickel positive pole, cadmium cathode and barrier film, in coiling is packed cylinder type nickel plating box hat into, inject alkali lye, adopt above-mentioned single face battery current collector 1, the capacity of making is certain Sc type battery, and this battery is designated as A1.
Embodiment 2: two-sided battery current collector
The making of two-sided battery current collector, the method preparation of the through hole 2 of described two-sided battery current collector 1 and protuberance 3 usefulness punching presses thereof, (Fig. 3 is second kind of embodiment of the present utility model), and through-hole diameter is 5mm, and protuberance 3 is an annular, and protuberance 3 highly is 0.5mm.
Battery is made: combine with general nickel positive pole, cadmium cathode and barrier film, in coiling is packed cylinder type nickel plating box hat into, inject alkali lye, adopt above-mentioned two-sided battery current collector 1, the capacity of making is certain Sc type battery, and this battery is designated as A2.
Comparative example:
According to prior art, comparative example adopts general battery current collector, and described battery current collector 1 is just used a circular batteries current collector of the method preparation of punching press, does not have through hole, does not also have corresponding protuberance.
Battery is made: combine with general nickel positive pole, cadmium cathode and barrier film, in coiling is packed cylinder type nickel plating box hat into, inject alkali lye, adopt above-mentioned battery current collector, and the capacity of making is certain Sc type battery that this battery is remembered A3.
As seen from Figure 7, make 1000 batteries according to same material and method, adopt the battery A1 of battery current collector structure of the present utility model, A2, the finished product fraction defective obviously reduce, because the variation of the structure of battery current collector of the present utility model, described battery current collector is provided with through hole, and described through hole edge is provided with protuberance; Owing to the protuberance setting, strengthened the conductivity of battery current collector and battery container, reduced the internal resistance of cell effectively, improve cell consistency and battery pack heavy-current discharge performance.
The embodiment of the above is a better embodiment of the present utility model, is not to limit concrete practical range of the present utility model with this, and the equivalence that all shapes according to the utility model, structure are done changes all in protection range of the present utility model.
Claims (14)
1, a kind of battery current collector, described battery current collector is a sheet metal plate, it is characterized in that, and described battery current collector is provided with through hole, and described through hole edge is provided with protuberance.
2, battery current collector according to claim 1, wherein, described protuberance is arranged on the one side or two sides of battery current collector.
3, battery current collector according to claim 1, wherein, described protuberance is zigzag or ring-type.
4, battery current collector according to claim 1 wherein, also is provided with dashpot on the described battery current collector.
5, battery current collector according to claim 4, wherein, described dashpot is a U-shaped.
6, battery current collector according to claim 1 wherein, also is provided with splitter box on the battery current collector.
7, battery current collector according to claim 1, wherein, described through-hole diameter is 0.5-8mm.
8, battery current collector according to claim 1, wherein, described protuberance height is 0.1-1mm.
9, a kind of battery, this battery comprises the block of housing, a sealed cell housing, and be sealed in the housing by anode pole piece, barrier film, stacked rolled electrode cores and the electrolyte of forming of cathode pole piece, described housing bottom also comprises a sheet battery current collector, its feature exists; Described battery current collector is provided with through hole, and described through hole edge is provided with protuberance, and described protuberance contacts with rolled negative pole core.
10, a kind of battery according to claim 9, wherein, described protuberance is arranged on the one side or two sides of battery current collector.
11, a kind of battery according to claim 10, wherein, protuberance of described battery current collector contacts with the battery container bottom, and the another side protuberance contacts with rolled negative pole core.
12, a kind of battery according to claim 9, wherein, described protuberance is zigzag or ring-type, described projecting part height is 0.1-1mm.
13, a kind of battery according to claim 9, wherein, described through-hole diameter is 0.5-8mm.
14, a kind of battery according to claim 9 wherein, also is provided with dashpot and/or splitter box on the described battery current collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200961259U CN201266637Y (en) | 2008-08-01 | 2008-08-01 | Battery current collector and battery containing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200961259U CN201266637Y (en) | 2008-08-01 | 2008-08-01 | Battery current collector and battery containing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201266637Y true CN201266637Y (en) | 2009-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200961259U Expired - Fee Related CN201266637Y (en) | 2008-08-01 | 2008-08-01 | Battery current collector and battery containing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201266637Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654075A (en) * | 2017-01-17 | 2017-05-10 | 辽宁九夷能源科技有限公司 | Method for improving anti-vibration performance of power nickel-hydrogen battery |
-
2008
- 2008-08-01 CN CNU2008200961259U patent/CN201266637Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654075A (en) * | 2017-01-17 | 2017-05-10 | 辽宁九夷能源科技有限公司 | Method for improving anti-vibration performance of power nickel-hydrogen battery |
| CN106654075B (en) * | 2017-01-17 | 2020-06-09 | 辽宁九夷能源科技有限公司 | Method for improving shock resistance of power type nickel-metal hydride battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090701 Termination date: 20150801 |
|
| EXPY | Termination of patent right or utility model |