CN1067766A - explosion-proof alkaline zinc-manganese battery - Google Patents
explosion-proof alkaline zinc-manganese battery Download PDFInfo
- Publication number
- CN1067766A CN1067766A CN91103993A CN91103993A CN1067766A CN 1067766 A CN1067766 A CN 1067766A CN 91103993 A CN91103993 A CN 91103993A CN 91103993 A CN91103993 A CN 91103993A CN 1067766 A CN1067766 A CN 1067766A
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- CN
- China
- Prior art keywords
- explosion
- sealing gasket
- battery
- proof
- alkaline zinc
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- 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.)
- Pending
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention relates to an explosion-proof alkaline zinc-manganese battery, which is characterized in that a metal explosion-proof needle is arranged between a negative plate and a sealing gasket, the tip of the explosion-proof needle is parallel to a current collecting rod and points to the sealing gasket, and in addition, the negative plate is provided with a vent hole. When the gas pressure in the battery exceeds the rated pressure, the sealing gasket presses the tip of the explosion-proof needle and punctures the sealing gasket, and at the moment, the gas in the battery is discharged outwards from the crevasse of the sealing gasket and the vent hole of the negative electrode bottom plate, so that the explosion of the battery is avoided. The invention has simple structure, easy manufacture, convenient use and low cost, and is a safe and reliable battery which can prevent leakage and explosion.
Description
The invention relates to an improved alkaline zinc-manganese battery.
The existing alkaline zinc-manganese battery adopts a sealing gasket in order to solve the problem of leakage and particularly enhance the sealing property. The problem of leakage can be solved due to the enhancement of sealing, but the gas generated in the alkaline zinc-manganese dioxide battery can not be discharged during charging and discharging, so that the battery can be deformed and even the explosion phenomenon can be generated. Therefore, most of alkaline zinc-manganese batteries are provided with certain explosion-proof structures, some of the alkaline zinc-manganese batteries are provided with a sealing gasket which is partially grooved and provided with a weak part, and the negative electrode bottom plate outside the sealing gasket is provided with a vent hole. The most important points of the explosion-proof structure are as follows: the weak portion of the sealing gasket can be surely ruptured when the gas pressure value of the battery reaches a predetermined value. The explosion-proof type alkaline zinc-manganese dioxide battery is considered to be safe and reliable if the pressure at which the sealing gasket is ruptured, that is, the rated pressure of the explosion-proof mechanism, is constant and the error of the same lot of products is small. However, it is difficult to make the rupture pressure of each seal uniform, since minute processing errors and environmental temperature differences greatly affect the seal, and since the seal is made of a flexible and tough plastic, it is often seen that the weak portion of the seal is stretched without being ruptured when the internal gas pressure of the battery reaches a predetermined value, and therefore, it is necessary to make the weak portion of the seal extremely thin in order to rupture the seal at a necessary and relatively low pressure. However, if the thickness of the weak portion is made extremely thin, the size thereof is very difficult to grasp, and the error is increased, so that it is not reliable.
In order to solve the above problems, chinese patent application No. 85108729 proposes forming a linear groove at a predetermined portion of a sealing gasket, providing a weak portion, and making the arrangement direction of polymer molecules at least around the groove substantially parallel to the groove. Most preferably, the seal gasket has polymer molecules arranged in a radial direction about a central convex portion of the seal gasket, so that the grooves extend in a direction orthogonal to a concentric circle about the central convex portion. This patent application can provide an explosion-proof alkaline battery which can ensure rupture of the weak portion of the sealing gasket at a relatively low pressure even in the case where the weak portion of the sealing gasket is thick. However, the sealing gasket has strict requirements on materials, high requirements on production processes and great difficulty, which bring great difficulty to implementation, and thus, the sealing gasket is difficult to popularize in developing countries.
The invention aims to provide an alkaline zinc-manganese dioxide battery which has the advantages of simple production process, convenient use, simple structure, low cost, liquid leakage prevention and explosion prevention.
The invention is realized by the following steps: a metal explosion-proof needle is arranged between a negative plate with a vent hole of the alkaline zinc-manganese battery and a sealing gasket, the sharp end of the explosion-proof needle is parallel to a current collecting rod, the sharp end of the explosion-proof needle points to the sealing gasket sleeved on the current collecting rod, the sealing gasket is made to have a certain thickness according to the requirement of bearing pressure, and one end of the current collecting rod is connected with the negative plate. When the alkaline zinc-manganese battery is improperly used or charged or the pressure of the gas in the battery is gradually increased due to other reasons, the sealing gasket automatically bulges outwards under the action of the pressure of the gas in the battery, when the pressure of the gas in the battery exceeds the rated pressure, the sealing gasket presses the sharp tip of the explosion-proof needle and punctures the sealing gasket, and at the moment, the gas in the battery is discharged through the breach of the sealing gasket and the vent hole of the negative plate, so that the pressure in the battery is reduced, and the explosion of the battery is prevented.
The alkaline zinc-manganese dioxide battery has the advantages of simple structure, easy manufacture, convenient use and low cost, is safe and reliable, and can prevent liquid leakage and explosion.
The present invention is described in further detail below with reference to the attached drawing figures.
Fig. 1 is a partial cross-sectional view of the present invention.
Fig. 2 is an explosion-proof combination device of the present invention.
Fig. 3 is an embodiment of the explosion proof needle of the present invention.
Referring to fig. 1 and 2, a negative plate 5 of the alkaline zinc-manganese battery is provided with a vent hole 6, a metal explosion-proof needle 4 is arranged between the negative plate 5 and a sealing gasket 3, the tip of the explosion-proof needle 4 is parallel to a current collecting rod 2, the sharp tip of the explosion-proof needle 4 points to the sealing gasket 3 sleeved on the current collecting rod 2, one end of the current collecting rod 2 is connected with the negative plate 5, the sealing gasket 3 is tightly pressed between the opening edge part of a positive tube 1 and the peripheral part of the negative plate 5 through extrusion, and the negative plate 5, the sealing gasket 3 and the positive tube 1 form a sealed whole. When the pressure of the gas in the alkaline zinc-manganese dioxide battery is gradually increased, the sealing gasket 3 automatically bulges outwards, when the pressure in the battery reaches the rated pressure, the sealing gasket 3 presses the sharp point of the explosion-proof needle 4 and punctures the sealing gasket 3, and at the moment, the gas in the battery is discharged outwards through the crevasse of the sealing gasket 3 and the vent hole 6 of the negative electrode plate 5, so that the explosion of the battery is avoided.
Claims (1)
1. An explosion-proof alkaline zinc-manganese dioxide battery is characterized in that: a metal explosion-proof needle 4 is arranged between the negative electrode substrate 5 and the sealing gasket 3, the tip of the explosion-proof needle 4 is parallel to the current collecting rod 2 and points to the sealing gasket 3, and in addition, the negative electrode substrate 5 is provided with a vent hole 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91103993A CN1067766A (en) | 1991-06-10 | 1991-06-10 | explosion-proof alkaline zinc-manganese battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91103993A CN1067766A (en) | 1991-06-10 | 1991-06-10 | explosion-proof alkaline zinc-manganese battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1067766A true CN1067766A (en) | 1993-01-06 |
Family
ID=4906368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91103993A Pending CN1067766A (en) | 1991-06-10 | 1991-06-10 | explosion-proof alkaline zinc-manganese battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067766A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159152A (en) * | 2016-08-30 | 2016-11-23 | 南通鼎鑫电池有限公司 | A kind of safety device preventing lithium battery to expand blast |
| CN107799782A (en) * | 2017-10-19 | 2018-03-13 | 东山电池工业（中国）有限公司 | High-voltage explosion-proof zinc-manganese battery |
| CN109378426A (en) * | 2018-11-22 | 2019-02-22 | 大连范特西西科技有限公司 | A kind of High-performance green cell safety explosion-protection equipment and method |
-
1991
- 1991-06-10 CN CN91103993A patent/CN1067766A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159152A (en) * | 2016-08-30 | 2016-11-23 | 南通鼎鑫电池有限公司 | A kind of safety device preventing lithium battery to expand blast |
| CN107799782A (en) * | 2017-10-19 | 2018-03-13 | 东山电池工业（中国）有限公司 | High-voltage explosion-proof zinc-manganese battery |
| CN107799782B (en) * | 2017-10-19 | 2024-04-09 | 东莞超霸电池有限公司 | High-voltage explosion-proof zinc-manganese battery |
| CN109378426A (en) * | 2018-11-22 | 2019-02-22 | 大连范特西西科技有限公司 | A kind of High-performance green cell safety explosion-protection equipment and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |