CN202134631U - Nickel-hydrogen power battery - Google Patents
Nickel-hydrogen power battery Download PDFInfo
- Publication number
- CN202134631U CN202134631U CN201120254890U CN201120254890U CN202134631U CN 202134631 U CN202134631 U CN 202134631U CN 201120254890 U CN201120254890 U CN 201120254890U CN 201120254890 U CN201120254890 U CN 201120254890U CN 202134631 U CN202134631 U CN 202134631U
- Authority
- CN
- China
- Prior art keywords
- nickel
- negative pole
- power cell
- positive electrode
- barrier film
- 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 - 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
Abstract
The utility model discloses a nickel-hydrogen power battery, which comprises a steel casing, a current collecting support, a positive electrode cap, a positive electrode, a negative electrode and a diaphragm separating the positive electrode and the negative electrode. The current collecting support comprises a transverse upper end board, a transverse lower end board and a longitudinal elastic sheet clamped between the upper end board and the lower end board. The upper end board is welded with the positive electrode cap, and the lower end board butts against the upper end of the positive electrode. The nickel-hydrogen power battery has strong current collecting effect and can improve an effect of large-current discharging of the nickel-hydrogen power battery.
Description
Technical field
The utility model relates to a kind of Ni-MH power cell, and it has stronger catchment effect can improve Ni-MH power cell heavy-current discharge effect.
Background technology
Ni-MH battery is the new high-tech product that grows up the end of the eighties, is the novel power supply of high-energy-density, and Ni-MH battery has big, the specific energy advantages of higher of specific capacity on performance; But high current charge-discharge, the overcharging resisting ability is strong, and is safe and reliable; Memory-less effect can work long hours, and does not pollute; Be called as " green battery ", represented the developing direction of 21st century battery product, be widely used in fields such as mobile communication, portable computer, electric tool, space flight.Because developing rapidly of mobile phone and electric motor car, the market capacity of Ni-MH battery is very big, and prospect is also fine.
Particularly in the electrokinetic cell field; Ni-MH power cell is unique by actual verification and by the battery system of commercialization, scale in the used battery system of hybrid vehicle at present, and the hybrid vehicle that has produced in batches in the whole world all adopts the Ni-MH power cell system.The market share of existing hybrid-power battery 99% is a Ni-MH power cell.Each big producer is when making Ni-MH power cell at present, and most afflux dishes that adopt carry out afflux to positive pole, to improve battery high power discharge performance; But in its production process, the afflux dish need weld with the foaming nickel that positive pole is reserved, and the welding current wild effect very easily occurs; Excessively then can foaming nickel burn-through be caused battery short circuit, the too small rosin joint phenomenon that then occurs; Make the internal resistance of cell increase, can't meet the requirements of the high power discharge performance.
The utility model content
The utility model provides a kind of Ni-MH power cell, and it can improve Ni-MH power cell heavy-current discharge effect.The production technology of this kind of the utility model battery need not to make anodal and the afflux dish carries out spot welding; Therefore efficiently solve the problems referred to above that prior art exists; It has not only reduced the difficulty of processing of Ni-MH power cell, improves production stability, and reduces the generation of substandard products waste product.
The technical scheme of the utility model is following:
A kind of Ni-MH power cell; Comprise box hat, positive electrode cap, positive pole, negative pole and the barrier film that positive pole and negative pole are separated; Said positive pole, barrier film and negative pole are reeled and also are located in the box hat, and anodal upper end forms the reservation foaming nickel portion of not filling active material, and the nickel portion that should reservation foams upper end from barrier film to the center that polish and give prominence to; The lower end of negative pole protrudes in the lower end of barrier film; And the negative pole lower end is electrically connected on the box hat bottom, and said Ni-MH power cell comprises that also one the afflux frame of deformation takes place, and this afflux frame comprises horizontal upper and lower end plate and is located in the vertical shell fragment between the upper and lower end plate; Said upper head plate and positive electrode cap welding, said bottom plate and reservation foaming nickel portion butt.
As the improvement of the utility model, the upper surface of said upper head plate is provided with spot welding point, and connects through spot welding between upper head plate and the positive electrode cap.
The lower surface of said bottom plate is distributed with convexity, and these protruding can embeddings are reserved in the foaming nickel portion, thereby have increased afflux frame and anodal contact area, and then have improved anodal electric conductivity.
As the improvement of the utility model, the material of said reservation foaming nickel portion is foaming nickel; The material of said upper head plate, bottom plate and shell fragment is respectively one or more in iron, nickel, aluminium or the copper.
As the further improvement of the utility model, the material of said upper and lower end plate is a nickel, and the material of said shell fragment is a copper, and the surface of upper and lower end plate and shell fragment all is coated with electrodeposited coating.
In order to strengthen the negative pole electric conductivity, be provided with nickel foam heelpiece or foam copper heelpiece between said negative pole lower end and the box hat bottom.
Can know that by above-mentioned description compare with prior art, the advantage of the utility model is to the utility model:
1, the Ni-MH power cell of the utility model has stronger catchment effect; It can improve Ni-MH power cell heavy-current discharge effect, in addition, because the afflux frame is in deformation state always; Be that shell fragment is compressed; Utmost point group can receive the downward pressure that shell fragment produces, thereby makes negative pole and electrically contacting of box hat bottom make moderate progress, and then improves the electric conductivity of negative pole.
2, the Ni-MH power cell of the utility model has stronger performance, and it can satisfy the requirement of 10C discharge, and maximum discharge current can reach 100A, and threshold voltage exchanges internal resistance below 3mW in the 30A discharge more than 1.18V.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the left side structural representation of afflux frame.
Fig. 3 is the vertical view of afflux frame.
Fig. 4 is the upward view of afflux frame.
Embodiment
The embodiment of the utility model is described with reference to the accompanying drawings.
With reference to Fig. 1, a kind of Ni-MH power cell comprises box hat 1, afflux frame 2, positive electrode cap 3, anodal 4, negative pole 5 and with anodal 4 and the barrier film 6 that separates of negative pole 5.The special nylon diaphragm that barrier film 6 adopts Britain SciMaT to produce.
Continuation is with reference to Fig. 1; Positive pole 4, barrier film 6 and negative pole 5 are reeled and are located in the box hat 1; Anodal 4 upper end forms the reservation foaming nickel portion 41 of not filling active material, and the nickel portion 41 that should reservation foams upper end from barrier film 6 to the center that polish and give prominence to, and the lower end of negative pole 5 protrudes in the lower end of barrier film 6.Anodal 4 are made up of anodal base material (not drawing among the figure) and the active material that is filled on the anodal base material usually, and this positive pole base material is generally foaming nickel, and the active material of positive pole 4 is generally ball-shape nickel hydroxide; Negative pole 5 is made up of base material of cathode (not drawing among the figure) and the active material that is filled on the base material of cathode usually, and this base material of cathode is generally net metal, and the active material of negative pole 5 is an alloyed powder.
Simultaneously with reference to Fig. 2 to Fig. 4; Afflux frame 2 comprises horizontal upper and lower end plate 21,22 and is located in upper and lower end plate 21, a plurality of vertical shell fragment 23 between 22; Among the figure for having six shell fragments 23; These shell fragments 23 are welded in upper and lower end plate 21,22, also can be connected with upper and lower end plate 21,22 through alternate manner.The material of the upper and lower end plate 21,22 in the present embodiment is that the material of stainless steel, shell fragment 23 is a copper; It has than the stronger catchment effect of common afflux dish; The material of certain upper and lower end plate 21,22 and shell fragment 23 also can be one or more in iron, nickel, aluminium or the copper; In addition, the surface of upper and lower end plate 21,22 and shell fragment 23 needs to cover electrodeposited coating (not drawing among the figure) usually.From figure, can find out that the upper surface of upper head plate 21 is provided with spot welding point 211, and connect through spot welding between upper head plate 21 and the positive electrode cap 3.The lower surface of bottom plate 22 is evenly distributed with convexity 221, and these convexities 221 can embed to be reserved in the foaming nickel portion 41, thereby has increased the contact area of afflux frame 2 with positive pole 4, and then has improved the electric conductivity of positive pole 4.
Continuation, need be filled up between negative pole 5 lower ends and box hat 1 bottom usually and establish nickel foam heelpiece 7 in order to strengthen the electric conductivity of negative pole 5 with reference to Fig. 1, and nickel foam heelpiece 7 also can be substituted by the foam copper heelpiece.
Referring to figs. 1 through Fig. 4, a kind of production technology of Ni-MH power cell, it may further comprise the steps:
A, making utmost point group; This step is made by positive pole making, negative pole and the coiling step is formed: 1) the anodal making; On foaming nickel, fill ball-shape nickel hydroxide; And add an amount of yittrium oxide, and anodal 4 upper end forms the reservation foaming nickel portion 41 of not filling active material, and this width of reserving foaming nickel portion 41 probably is 4.5mm; 2) negative pole is made, and the filler alloys powder is processed negative pole 5 on net metal; 3) reel; The barrier film of processing with special nylon 6 separates positive and negative electrode 4,5, simultaneously positive and negative electrode 4,5 and barrier film 6 is reeled, and makes reservation foaming nickel portion 41 outstanding barrier film 6 upper ends; Negative pole 5 lower ends protrude in barrier film 6 lower ends, with alkaline-resisting adhesive tape utmost point group are glued then.
B, making afflux frame; A plurality of shell fragments longitudinally 23 are linked together with horizontal upper and lower end plate 21,22; Respectively upper and lower end plate 21,22 and shell fragment 23 are electroplated then; The shell fragment 23 of present embodiment is made of copper, and upper and lower end plate 21,22 is processed by stainless steel, and they also can be substituted by other metal material certainly.
C, pre-assembled will be reserved foaming nickel portion 41 and polish to the center; Pad is established nickel foam heelpiece 7 in the bottom of box hat 1, and this nickel foam heelpiece 7 can be substituted by the foam copper heelpiece, and the thickness of above-mentioned nickel foam heelpiece 7 probably is about 1.3mm; The upper head plate 21 of afflux frame 2 is welded together with positive electrode cap 3.
D, assembling; Earlier utmost point group is positioned in the box hat 1, makes negative pole 5 lower ends and nickel foam heelpiece 7 butts, then carry out slot rolling and inject electrolyte; To reserve in the foaming nickel portion 41 with being positioned over of afflux frame 2 of positive electrode cap 3 welding in advance then; Encapsulate at last, the afflux frame 2 after the encapsulation can be in compressive state always, i.e. shell fragment 23 compressions.
In addition, in order to increase afflux frame 2 and anodal 4 contact area, and improved anodal 4 electric conductivity, it is a large amount of protruding 221 to need usually on the lower surface of above-mentioned bottom plate 22 to distribute, and these protruding 221 can embed and reserve in the nickel portion 41 that foams (being generally the nickel that foams).
Compare with existing manufacturing technique; The production technology of the utility model no longer need be to carrying out spot welding between positive pole and the collector; No burn-through foaming nickel risk also do not have the rosin joint phenomenon, so it has not only reduced the difficulty of processing of Ni-MH power cell; Improve production stability, and reduced the generation of substandard products waste product.
The above-mentioned embodiment that is merely the utility model, but the design concept of the utility model is not limited thereto allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection range.
Claims (5)
1. Ni-MH power cell; Comprise box hat, positive electrode cap, positive pole, negative pole and the barrier film that positive pole and negative pole are separated; Said positive pole, barrier film and negative pole are reeled and also are located in the box hat, and anodal upper end forms the reservation foaming nickel portion of not filling active material, and the nickel portion that should reservation foams upper end from barrier film to the center that polish and give prominence to; The lower end of negative pole protrudes in the lower end of barrier film; And the negative pole lower end is electrically connected on the box hat bottom, it is characterized in that: said Ni-MH power cell comprises that also one the afflux frame of deformation takes place, and this afflux frame comprises horizontal upper and lower end plate and is located in the vertical shell fragment between the upper and lower end plate; Said upper head plate and positive electrode cap welding, said bottom plate and reservation foaming nickel portion butt.
2. Ni-MH power cell as claimed in claim 1 is characterized in that: the upper surface of said upper head plate is provided with spot welding point, and connects through spot welding between upper head plate and the positive electrode cap.
3. Ni-MH power cell as claimed in claim 1 is characterized in that: the lower surface of said bottom plate is distributed with convexity.
4. Ni-MH power cell as claimed in claim 3 is characterized in that: the material of said upper and lower end plate is a nickel, and the material of said shell fragment is a copper, and the surface of upper and lower end plate and shell fragment all is coated with electrodeposited coating.
5. Ni-MH power cell as claimed in claim 1 is characterized in that: be provided with nickel foam heelpiece or foam copper heelpiece between said negative pole lower end and the box hat bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120254890U CN202134631U (en) | 2011-07-19 | 2011-07-19 | Nickel-hydrogen power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120254890U CN202134631U (en) | 2011-07-19 | 2011-07-19 | Nickel-hydrogen power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134631U true CN202134631U (en) | 2012-02-01 |
Family
ID=45523393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120254890U Expired - Fee Related CN202134631U (en) | 2011-07-19 | 2011-07-19 | Nickel-hydrogen power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134631U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299388A (en) * | 2011-07-19 | 2011-12-28 | 泉州劲鑫电子有限公司 | Ni-MH power battery and production technology thereof |
| WO2023065187A1 (en) * | 2021-10-20 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and device therefor, battery, and electric device |
-
2011
- 2011-07-19 CN CN201120254890U patent/CN202134631U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299388A (en) * | 2011-07-19 | 2011-12-28 | 泉州劲鑫电子有限公司 | Ni-MH power battery and production technology thereof |
| CN102299388B (en) * | 2011-07-19 | 2013-07-24 | 泉州劲鑫电子有限公司 | Production technology of Ni-MH power battery |
| WO2023065187A1 (en) * | 2021-10-20 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery cell and manufacturing method and device therefor, battery, and electric device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Samarium-containing praseodymium and neodymium-free hydrogen storage alloy for nickel-hydrogen power battery Effective date of registration: 20160125 Granted publication date: 20120201 Pledgee: Bank of China Limited by Share Ltd Quanzhou branch Pledgor: Quanzhou Jintion Electronics Co., Ltd. Registration number: 2016350000007 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20180719 |