CN101026229A - Seal of alkaline zinc-manganese battery and manufacturing method thereof - Google Patents
Seal of alkaline zinc-manganese battery and manufacturing method thereof Download PDFInfo
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- CN101026229A CN101026229A CN200610020341.0A CN200610020341A CN101026229A CN 101026229 A CN101026229 A CN 101026229A CN 200610020341 A CN200610020341 A CN 200610020341A CN 101026229 A CN101026229 A CN 101026229A
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- seal
- battery
- sealing
- alkaline zinc
- sealing ring
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention belongs to the technical field of methods or devices for directly converting chemical energy into electric energy, and particularly relates to a seal of an alkaline zinc-manganese battery and a manufacturing method thereof. The seal comprises a spot welding needle, a current collector and an indium-plated small bowl, wherein the spot welding needle is inserted into a middle hole of a seal ring, the indium-plated small bowl tightly hoops the insertion part of the spot welding needle in the middle hole of the seal ring to form the current collector, and the current collector is inserted into zinc paste of a battery and is tightly matched with a flaring part of a nickel-plated steel shell. The manufacturing method of the seal comprises the steps of pressing a longitudinal sealing leakage-proof line and a transverse sealing leakage-proof line on the stress surface of the seal ring at the flaring part of the nickel-plated steel shell in the sealing process, and carrying out transverse shaping and longitudinal blank head on the seal ring under the support of the negative cover. The alkaline zinc-manganese battery seal has the advantages of longitudinal and transverse sealing leakage-proof lines, good sealing effect, improved leakage-proof performance of the alkaline battery, simple and easy manufacture method of the seal, and high quality and low cost.
Description
The technical field is as follows:
the invention belongs to the technical field of methods or devices for directly converting chemical energy into electric energy, and particularly relates to a seal of an alkaline zinc-manganese battery and a manufacturing method thereof.
Background art:
alkaline zinc-manganese batteries use aqueous solutions of KOH as the electrolyte solution for such batteries, and KOH has the property of wetting well when in phase with the metal mass (steel can). In addition, the internal pressure of the battery is higher, so that the alkaline battery is easy to climb alkali and leak liquid. In the case of alkaline zinc-manganese batteries, there is often gas generation such as CO within the battery 2 、H 2 And the like, when the battery is heated, the internal gas expands, resulting in an increase in the internal pressure of the battery, with the possibility of explosion. The sealing ring of the battery is provided with two anti-explosion grooves, when the internal pressure of the battery is greater than the bearing pressure of the sealing ring grooves, the grooves are broken, the gas in the battery is discharged, and the effect of safe explosion removal of the battery is achieved. However, the KOH solution leaks out due to explosion discharge and breakage of the sealing ring, so that the battery cannot be used.
At present, the zinc-manganese alkaline batteries of companies and manufacturers of alkaline battery equipment generally adopt the following sealing modes:
1. the nylon sealing ring and the inner gasket form a current collector, the current collector is placed into the battery steel shell after the current collector is rolled up, or the battery steel shell is subjected to blank head rolling, and the nylon sealing ring is longitudinally compressed and sealed.
2. After the polypropylene sealing ring is assembled into a current collector, the current collector is inserted into a battery steel shell for back groove rolling, and then the polypropylene sealing ring is subjected to edge rolling and transverse shaping sealing.
For the sealing mode, only a single sealing is carried out in the longitudinal direction or the transverse direction, the sealing effect is poor, the leakage-proof performance is poor, and for the nylon sealing ring, the price is higher than that of the polypropylene sealing ring.
The invention content is as follows:
the invention aims to overcome the problems and provide a sealing of an alkaline zinc-manganese battery with excellent quality and low cost, which simultaneously seals two leakage-proof lines in the longitudinal direction and the transverse direction of a battery sealing part and a manufacturing method thereof.
The purpose of the invention is realized as follows:
the invention discloses a seal of an alkaline zinc-manganese battery, which comprises a spot welding needle, a current collector, an indium-plated small bowl, a spot welding needle inserted into a central hole of a sealing ring, and an insertion part of the spot welding needle tightly hooped by the indium-plated small bowl in the central hole of the sealing ring, wherein the current collector is inserted into zinc paste of the battery and tightly matched with a flaring part of a nickel-plated steel shell.
The spot welding needle is formed by welding a negative electrode cover and an indium-plated copper needle.
The stress surface of the sealing ring is provided with a longitudinal sealing leakage-proof line and a transverse sealing leakage-proof line, and the pressure born by the sealing ring is 3-6 MPa.
The sealing ring is made of polypropylene.
The indium-plated copper needle is in interference fit with the sealing ring, and the interference magnitude is 0.1-0.35 mm.
The interference fit amount of the indium-plated copper needle and the sealing ring is 0.1-0.15 mm.
The invention relates to a manufacturing method of an alkaline zinc-manganese battery seal, which is characterized in that a longitudinal and a transverse sealed explosion-proof grooves are pressed out of the stress surface of a seal ring at the flaring part of a nickel-plated steel shell of the battery in the sealing process of the seal, and the flaring part of the nickel-plated steel shell after groove pressing carries out transverse shaping and longitudinal blank head on the seal ring under the support of a negative cover.
The longitudinal and transverse compression ratios are respectively: 25-55% and 30-60%.
The invention discloses a seal of an alkaline zinc-manganese battery, which adopts a polypropylene seal ring, after a current collector is assembled, the polypropylene seal ring is inserted into a negative electrode zinc paste of a nickel-plated steel shell of the battery after a rolling groove to be used as a negative electrode lead fluid to simultaneously carry out transverse shaping and longitudinal blank head on the seal ring under the support of a negative electrode cover, and a passage of electrolyte KOH is locked by longitudinal and transverse sealing compression, thereby achieving the aim of sealing and no leakage of the mechanical seal of the battery.
The alkaline zinc-manganese dioxide battery seal has longitudinal and transverse two-way seal leakage-proof lines, has good sealing effect, and is greatly superior to the single-way seal battery only in the longitudinal or transverse direction, thereby improving the leakage-proof performance of the alkaline battery. And in terms of material price, the polypropylene sealing ring is 2 to 3 minutes cheaper than the nylon sealing ring. The manufacturing method of the alkaline zinc-manganese battery seal is simple and easy to implement, the seal can completely achieve the purpose of battery sealing, and the alkaline zinc-manganese battery seal is high in quality and low in cost and the manufacturing method thereof.
Description of the drawings:
fig. 1 is a schematic cross-sectional view of the structure of a seal for an alkaline zinc-manganese battery of the present invention.
Fig. 2 is a structural schematic diagram of a spot welding pin for sealing an alkaline zinc-manganese dioxide battery.
Fig. 3 is a schematic structural diagram of the current collector of the alkaline zinc-manganese dioxide battery seal of the invention.
The specific implementation mode is as follows:
as shown in fig. 1, 2 and 3, the seal of the alkaline zinc-manganese battery of the invention comprises a spot welding needle 1 and a current collector 2, wherein an indium-plated small bowl 3 is arranged, the spot welding needle 1 is inserted into a central hole of a sealing ring 4, the small indium-plated bowl 3 tightly clamps the inserted part of the spot welding needle 1 of the central hole of the sealing ring 4 to form the current collector 2, and the current collector 2 is inserted into zinc paste 5 of the battery and is tightly matched with a flaring part 7 of a nickel-plated steel shell 6.
The spot welding pin 1 is formed by welding a negative electrode cover 8 and an indium-plated copper pin 9.
The stress surface of the sealing ring 4 is provided with a longitudinal sealing leakage-proof line 10 and a transverse sealing leakage-proof line 11, and the pressure born by the sealing ring 4 is 4.5MPa.
The material of the seal ring 4 is polypropylene.
The interference fit amount of the indium-plated copper needle 9 and the sealing ring 4 is 0.12mm.
The invention relates to a manufacturing method of an alkaline zinc-manganese battery seal, which comprises the steps of pressing a longitudinal sealing leakage-proof line 10 and a transverse sealing leakage-proof line 11 on the stress surface of a seal ring 4 at the flaring part 7 of a nickel-plated steel shell 6 of the battery in the sealing process of the seal, and carrying out transverse shaping and longitudinal blank head on the seal ring 4 at the flaring part 7 of the nickel-plated steel shell 6 after groove pressing under the support of a negative cover 8.
The longitudinal and transverse compression ratios are respectively: 30% and 35%.
The invention discloses a seal of an alkaline zinc-manganese dioxide battery, which adopts a polypropylene seal ring 4, after a collector 2 is assembled, the polypropylene seal ring is inserted into a negative electrode zinc paste 5 of a battery nickel-plated steel shell 6 after a rolling groove to be used as a negative electrode drainage body, the seal ring 4 is transversely shaped and longitudinally shaped at the same time under the support of a negative electrode cover 8, and a channel of an electrolyte KOH is locked through longitudinal and transverse two sealing and compression, thereby achieving the purpose of no leakage of the mechanical seal of the battery.
Claims (8)
1. A seal of an alkaline zinc-manganese battery comprises a spot welding needle (1) and a current collector (2), and is characterized in that an indium-plated small bowl (3) is arranged, the spot welding needle (1) is inserted into a middle hole of a sealing ring (4), the indium-plated small bowl (3) tightly clamps an insertion part of the spot welding needle (1) in the middle hole of the sealing ring (4) to form the current collector (2), and the current collector (2) is inserted into zinc paste (5) of the battery and is tightly matched with an expansion part (7) of a nickel-plated steel shell (6).
2. The seal of alkaline zinc-manganese dioxide cell as claimed in claim 1, characterized in that the spot-welding needle (1) is welded from a negative cover (8) and an indium-plated copper needle (9).
3. The seal of an alkaline zinc-manganese dioxide battery according to claim 1, characterized in that the stressed surface of the sealing ring (4) has two sealing leakage-proof lines (10, 11) in the longitudinal and transverse directions, and the sealing ring (4) bears a pressure of 3-6 MPa.
4. The seal of an alkaline zinc-manganese dioxide cell as claimed in claim 1 or 3, characterized in that the sealing ring (4) is made of polypropylene.
5. The closure of an alkaline zinc-manganese dioxide cell as claimed in claim 1 or 2, characterized in that the indium-plated copper pin (9) is in interference fit with the sealing ring (4) with an interference of 0.1 to 0.35mm.
6. The seal of alkaline zinc-manganese dioxide cell as claimed in claim 5, characterized in that the interference fit of the indium-plated copper pin (9) with the sealing ring (4) is 0.1 to 0.15mm.
7. A manufacturing method of an alkaline zinc-manganese battery seal is characterized in that a longitudinal sealing leakage-proof line and a transverse sealing leakage-proof line (10 and 11) are pressed on a stress surface of a seal ring (4) at a flaring part (7) of a nickel-plated steel shell (6) of the battery in a sealing process of the seal, and the flaring part (7) of the nickel-plated steel shell (6) after groove pressing carries out transverse shaping and longitudinal blank head on the seal ring (4) under the support of a negative cover (8).
8. The method of claim 7, wherein the longitudinal and transverse compression ratios are: 25-55% and 30-60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610020341.0A CN101026229A (en) | 2006-02-23 | 2006-02-23 | Seal of alkaline zinc-manganese battery and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610020341.0A CN101026229A (en) | 2006-02-23 | 2006-02-23 | Seal of alkaline zinc-manganese battery and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101026229A true CN101026229A (en) | 2007-08-29 |
Family
ID=38744286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610020341.0A Pending CN101026229A (en) | 2006-02-23 | 2006-02-23 | Seal of alkaline zinc-manganese battery and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101026229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505474A (en) * | 2014-12-19 | 2015-04-08 | 深圳市电科电源股份有限公司 | Method for improving air impermeability of cylindrical battery and cylindrical battery |
| CN108539088A (en) * | 2018-05-28 | 2018-09-14 | 浙江野马电池股份有限公司 | A kind of sealing structure of alkaline manganese cell |
-
2006
- 2006-02-23 CN CN200610020341.0A patent/CN101026229A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505474A (en) * | 2014-12-19 | 2015-04-08 | 深圳市电科电源股份有限公司 | Method for improving air impermeability of cylindrical battery and cylindrical battery |
| CN108539088A (en) * | 2018-05-28 | 2018-09-14 | 浙江野马电池股份有限公司 | A kind of sealing structure of alkaline manganese cell |
| CN108539088B (en) * | 2018-05-28 | 2024-05-28 | 浙江野马电池股份有限公司 | Sealing structure of alkaline manganese cell |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |