CN103258976B - Without the button cell that mercury is unleaded - Google Patents
Without the button cell that mercury is unleaded Download PDFInfo
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- CN103258976B CN103258976B CN201310149192.8A CN201310149192A CN103258976B CN 103258976 B CN103258976 B CN 103258976B CN 201310149192 A CN201310149192 A CN 201310149192A CN 103258976 B CN103258976 B CN 103258976B
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- Prior art keywords
- negative
- cover
- negative cover
- nickel
- button cell
- Prior art date
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 85
- 230000004888 barrier function Effects 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 66
- 239000001257 hydrogen Substances 0.000 claims description 42
- 229910052739 hydrogen Inorganic materials 0.000 claims description 42
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 40
- 229910052759 nickel Inorganic materials 0.000 claims description 33
- 229910052751 metal Inorganic materials 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 238000007747 plating Methods 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 7
- 229940105847 calamine Drugs 0.000 claims description 6
- 239000006071 cream Substances 0.000 claims description 6
- 229910052864 hemimorphite Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 235000014692 zinc oxide Nutrition 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- CPYIZQLXMGRKSW-UHFFFAOYSA-N zinc;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Zn+2] CPYIZQLXMGRKSW-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 238000009738 saturating Methods 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 4
- -1 ferrous metals Chemical class 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 5
- 229910052738 indium Inorganic materials 0.000 description 23
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 23
- 239000007789 gas Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The present invention discloses a kind of button cell unleaded without mercury, includes negative cover, positive electrode, sealing ring, anode cover, negative material and barrier film; This anode cover and negative cover are fastened and connected; Sealing circle is located between anode cover and negative cover, separates to be isolated from each other with negative cover by anode cover; This positive electrode is arranged at the inner bottom part of anode cover, and this barrier film is arranged at the top of positive electrode, and this negative material is installed between negative cover and barrier film; Be provided with between this negative cover with negative material and separate for negative material and negative cover are isolated from each other and simultaneously by conducting film that negative material is connected with negative cover conducting; By this, by being provided with conducting film between negative cover and negative material, to ensure that negative material and negative cover keep isolation separately, effectively prevent because negative material contacts with negative cover and make the phenomenon that inflatable appears in product, leakage is even exploded, stopped potential safety hazard, the fail safe that product uses is better.
Description
Technical field
The present invention relates to chemical power source and cell manufacturing techniques art, refer in particular to a kind of button cell unleaded without mercury, comprise alkaline zinc margunese button cell and silver oxide button battery.
Background technology
Please refer to shown in Fig. 1, that show the concrete structure of existing button cell, including negative cover 10 ', positive electrode 20 ', sealing ring 30 ', negative material 40 ', anode cover 50 ' and the barrier film 60 ' for isolating positive electrode 20 ' and negative material 40 ', this anode cover 50 ' is fastened and connected with negative cover 10 ', sealing circle 30 ' is located between anode cover 50 ' and negative cover 10 ', separates to be isolated from each other with negative cover 10 ' by anode cover 50 ', this positive electrode 20 ' is arranged at the inner bottom part of anode cover 50 ', and this barrier film 60 ' is arranged at the top of positive electrode 20 ', and this negative material 40 ' is installed between negative cover 10 ' and barrier film 60 ', and negative material 40 ' is without the unleaded calamine cream of mercury, under normal circumstances, this negative cover 10 ' adopts iron plate or other ferrous metals sheet punching to form, easily there is evolving hydrogen reaction in the Metal Contact of the low overpotential of hydrogen evolution such as negative material 40 ' and iron, therefore, contact with the parent metal of negative cover 10 ' in order to avoid negative material 40 ' and evolving hydrogen reaction occurs, the existing button cell unleaded without mercury needs the metal at the plated surface last layer height overpotential of hydrogen evolution of negative cover 10 ', usual anticathode lid 10 ' carries out plating indium or zinc-plated process, separate negative material 40 ' is isolated with the parent metal of negative cover 10 ', negative material 40 ' is avoided to contact with the parent metal of negative cover 10 ' and evolving hydrogen reaction occurs.
Although the above-mentioned button cell unleaded without mercury to a certain extent can by separated from one another for the parent metal of negative material and negative cover by the mode of carrying out plating indium or zinc-plated process in negative cover, but but find when practical application himself structure and serviceability still have many deficiencies, cause the existing button cell unleaded without mercury in practical application, fail to reach best result of use and task performance, now its shortcoming be summarized as follows:
First, above-mentioned negative cover due in self structure, in plating indium or zinc-plated process, easily occur that plating is uneven, coating is not fine and close, have hole, easily scratch, easily come off, the poor plating problem such as long whisker after oxidizable, plating; Due to negative cover poor plating, make negative material parent metal that is easy and negative cover, as the Metal Contact of the low overpotential of hydrogen evolution such as iron, evolving hydrogen reaction occur, the hydrogen that evolving hydrogen reaction produces makes button cell inflatable, leakage is even exploded.
Secondly, above-mentioned negative cover is in plating indium or zinc-plated process, negative cover entirety is needed to plate one deck indium or one deck tin, then again due to outward appearance or needs functionally, use chemical medicinal liquid etch to fall the indium layer in cathode cover exterior face or tin layers again, only retain the indium layer on negative cover inner surface or tin layers, need to discharge trade effluent that is a large amount of or that contain the heavy metal ion such as indium Huo Han Chrome or cupric in this production process, to environment, not environmentally; Meanwhile, because indium is rare metal, expensive, make enterprise's production cost high, and the indium that etch is fallen can cause the wasting of resources, increases business burden.
3rd; the above-mentioned button cell unleaded without mercury also also exists a serious shortcoming in serviceability; that be exactly battery in use especially after heavy load continuous discharge, the phenomenon that serious inflatable is even exploded often can occur, and potential safety hazard is very important.
In a word, prior art also exists the above-mentioned critical defect self being difficult to overcome, and needs to find a kind of new technical scheme to solve these problems, to make the mercuryless process of alkaline button cell safe and environmentally friendly.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide a kind of button cell unleaded without mercury, and it effectively can solve the existing button cell unleaded without mercury due to negative cover poor plating or the problem that there is larger potential safety hazard due to heavy load continuous discharge.
Another object of the present invention is to provide a kind of button cell unleaded without mercury, and it effectively can solve the existing button cell unleaded without mercury needs anticathode lid to carry out plating indium or zinc-plated process and cause not environmentally and increase the problem of enterprise's production cost.
For achieving the above object, the present invention adopts following technical scheme:
Without the button cell that mercury is unleaded, include a negative cover, a positive electrode, a sealing ring, an anode cover, one and the negative material and of negative cover conducting for isolating the barrier film of positive electrode and negative material; This anode cover and negative cover are fastened and connected; Sealing circle is located between anode cover and negative cover, separates to be isolated from each other with negative cover by anode cover; This positive electrode is arranged at the inner bottom part of anode cover, and this barrier film is arranged at the top of positive electrode, and this negative material is installed between negative cover and barrier film; Be provided with between this negative cover with negative material and separate for negative material and negative cover are isolated from each other and simultaneously by isolated location that negative material is connected with negative cover conducting, this isolated location is conducting film, this conducting film is arranged at the inner surface of negative cover and is covered to the bottom of the outer ring body of negative cover or top or between bottom and top, negative material is isolated from each other with negative cover and separates by this conducting film, and this conducting film conducting is connected between negative material and negative cover.
As a kind of preferred version, described conducting film is the material of hydrogen and the saturating conduction of the resistance to highly basic of electrolyte, and this material is graphite-base composite material or carbon black based composites or hydrogen permeation alloy material or hydrogen permeation alloy composite material.
As a kind of preferred version, described negative cover is provided with the capillary channel being provided with exhaust between the outer ring body of steam vent or this negative cover and isolated location.
As a kind of preferred version, described negative cover adopts iron plate or other ferrous metals sheet punching to form, and the surface of this negative cover is at least coated with one deck nickel, or this negative cover directly adopts preplating sheet metal or laminated metal sheet punching to form.
As a kind of preferred version, described preplating sheet metal is add copper-plated steel band after nickel plated steel strip or the nickel plating of one side nickel plating another side.
As a kind of preferred version, described laminated metal sheet is nickel/stainless steel/nickel, or nickel/iron/nickel, or nickel/stainless steel/copper, or three layers of composite steel band of nickel/iron/copper, or nickel/stainless two layers of composite steel band.
As a kind of preferred version, described negative material is without the unleaded calamine cream of mercury.
The present invention compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution:
One, by being provided with isolated location between negative cover and negative material, utilize this conducting film negative cover and negative material to be isolated separate to prevent negative material from contacting with negative cover and evolving hydrogen reaction occurs, replace with this existing by plating indium or zinc-plated by the parent metal isolation form separately of negative material and negative cover.By this, on the one hand, be conducive to ensureing that negative material and negative cover keep isolation separately, effectively avoid negative material contact with negative cover and make the phenomenon that inflatable appears in product, leakage is even exploded, stopped potential safety hazard, the fail safe that product uses is better; On the other hand, the present invention is made in the middle of production in negative cover do not need to use plating indium or zinc-plated, effectively prevent owing to using chemical medicinal liquid etch indium layer or tin layers to need discharge or the pollution on the environment containing the trade effluent of the heavy metal ion such as indium Huo Han Chrome or cupric, be beneficial to environmental protection, also reduce the production cost of enterprise simultaneously, alleviate business burden.
Two, the capillary channel being provided with steam vent or being provided with exhaust in negative cover between the outer ring body and isolated location of negative cover is passed through, the hydrogen produced when utilizing this steam vent or those capillary channels that evolving hydrogen reaction is occurred in button cell inside is discharged, avoid that accumulated gases makes button cell inflatable in button cell inside, leakage is even exploded, improve the fail safe that product uses further.
For more clearly setting forth architectural feature of the present invention and effect, below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the sectional view of existing button cell;
Fig. 2 is the sectional view of first preferred embodiment of the present invention;
Fig. 3 is the sectional view of second preferred embodiment of the present invention;
Fig. 4 is the sectional view of the 3rd preferred embodiment of the present invention;
Fig. 5 is the sectional view of the 4th preferred embodiment of the present invention;
Fig. 6 is the sectional view of the 5th preferred embodiment of the present invention;
Fig. 7 is the sectional view of the 6th preferred embodiment of the present invention;
Fig. 8 is the sectional view of the 7th preferred embodiment of the present invention;
Fig. 9 is the sectional view of the 8th preferred embodiment of the present invention.
Accompanying drawing identifier declaration:
10 ', negative cover 20 ', positive electrode
30 ', sealing ring 40 ', negative material
50 ', anode cover 60 ', barrier film
10, negative cover 11, steam vent
12, capillary channel 20, positive electrode
30, sealing ring 40, negative material
50, anode cover 60, barrier film
70, isolated location 71, barrier film
72, collector body.
Embodiment
Please refer to shown in Fig. 2, that show the concrete structure of first preferred embodiment of the present invention, include negative cover 10, positive electrode 20, sealing ring 30, one and negative material 40, anode cover 50 and of negative cover 10 conducting for isolating the barrier film 60 of positive electrode 20 and negative material 40.
This anode cover 50 is fastened and connected with negative cover 10; Sealing circle 30 is located between anode cover 50 and negative cover 10, separates to be isolated from each other with negative cover 10 by anode cover 50; This positive electrode 20 is arranged at the inner bottom part of anode cover 50, and this barrier film 60 is arranged at the top of positive electrode 20, and this negative material 40 is installed between negative cover 10 and barrier film 60, and negative material 40 is without the unleaded calamine cream of mercury.
Wherein, this negative cover 10 adopts iron plate or other ferrous metals sheet punching to form, the surface of this negative cover is at least coated with one deck nickel, certainly also other metal level can be plated, as gold-plated, to make the profile of negative cover 10 more attractive in appearance, or this negative cover 10 directly adopts preplating sheet metal or laminated metal sheet punching to form; This preplating sheet metal is add copper-plated steel band after nickel plated steel strip or the nickel plating of one side nickel plating another side, and this laminated metal sheet is nickel/stainless steel/nickel, or nickel/iron/nickel, or nickel/stainless steel/copper, or three layers of composite steel band of nickel/iron/copper, or nickel/stainless two layers of composite steel band, not to be limited; This negative cover 10 is provided with steam vent 11, this steam vent 11 is positioned at the lateral margin of negative cover 10, the hydrogen produced when this steam vent 11 is for discharging inside battery generation evolving hydrogen reaction, avoids that accumulated gases makes button cell inflatable in button cell inside, leakage is even exploded.
And, be provided with between this negative cover 10 with negative material 40 and separate for negative material 40 and negative cover 10 are isolated from each other and simultaneously by isolated location 70 that negative material 40 is connected with negative cover 10 conducting.In the present embodiment, this isolated location 70 is for including barrier film 71 and collector body 72, negative material 40 is isolated from each other with negative cover 10 and separates by the inner surface that this barrier film 71 is arranged at negative cover 10, this barrier film 71 is arranged at the inner surface of negative cover 10 and is covered to outer ring body (the i.e. annular solid beyond the pearl footpath of negative cover 10 of negative cover 10, this pearl footpath is the maximum gauge of the pearl body of negative cover 10, the cross section of this annular solid is J type) bottom, periphery and the sealing ring 30 of this barrier film 71 are tightly connected, evolving hydrogen reaction is there is to prevent negative material 40 from contacting with negative cover 10, the material that this barrier film 71 is saturating hydrogen and the saturating resistance to highly basic of electrolyte, this material is PP material or PVC material or PA material or PE material or PTFE material or theirs is material modified, due to the metal impurities of negative material 40 all containing a small amount of low overpotential of hydrogen evolution, as iron etc., these impurity after the continuous discharge of battery heavy load easily and calamine cream generation evolving hydrogen reaction and produce hydrogen, this gas transmissive barrier film 71 is also discharged by aforementioned steam vent 11, prevents battery inflatable, leakage even explodes, this collector body 72 is with negative material 40, the metal material of evolving hydrogen reaction can not occur, and this metal material is pure copper material or copper-based alloy material, this collector body 72 plates indium or zinc-plated or plating indium stannum alloy, in the present embodiment, this collector body 72 is pure copper material, when the purity of pure copper material reaches more than 99.999% (containing 99.999%), also can not plate indium or not zinc-plated or do not plate indium stannum alloy, not to be limited, and, in the present embodiment, this collector body 72 is wire, this wire conducting is connected between negative material 40 and negative cover 10, the two ends of this wire are connected with the outer ring body conducting of negative cover 10 respectively, and the mid portion of this wire is connected with negative material 40 conducting, the mid portion of this wire is stretching shape and vertical with the axis of battery.
Please refer to shown in Fig. 3, that show the concrete structure of second preferred embodiment of the present invention, the concrete structure of the present embodiment is substantially identical with the concrete structure of aforementioned first preferred embodiment, difference is: in the present embodiment, this barrier film 71 is arranged at the inner surface of negative cover 10 and is covered to the top of the outer ring body of negative cover 10, the two ends of this wire are connected with the pearl body of negative cover 10 (namely from the end face of the outer ring body of negative cover 10 to the entity between the end face of negative cover 10) conducting respectively, the contact area between wire and barrier film 71 and sealing ring 30 is increased with this, make the sealing property between negative cover 10 and anode cover 50 better, more effectively prevent the appearance of the phenomenon of leakage.
Please refer to shown in Fig. 4, that show the concrete structure of the 3rd preferred embodiment of the present invention, the concrete structure of the present embodiment is substantially identical with the concrete structure of aforementioned second preferred embodiment, difference is: in the present embodiment, this collector body 72 is an annular solid, the cross section of this annular solid is L-type, the bottom of this annular solid is connected with negative material 40 conducting, the top of annular solid is connected with the pearl body conducting of negative cover 10, by this, by utilizing annular solid as collector body, the assembling of product can be made convenient, and conducting connect more reliable.
Please refer to shown in Fig. 5, that show the concrete structure of the 4th preferred embodiment of the present invention, the concrete structure of the present embodiment is substantially identical with the concrete structure of aforementioned first preferred embodiment, difference is: in the present embodiment, this isolated location 70 is conducting film, this conducting film instead of barrier film 71 in aforementioned first preferred embodiment and collector body 72, and negative material 40 and negative cover 10 are isolated from each other and separate and this conducting film conducting is connected between negative material 40 and negative cover 10 by the inner surface that this conducting film is arranged at negative cover 10; In the present embodiment, this conducting film is arranged at the inner surface of negative cover 10 and is covered to the bottom of the outer ring body of negative cover 10, and periphery and the sealing ring 30 of this conducting film are tightly connected, and to prevent negative material 40 from contacting with negative cover 10, evolving hydrogen reaction occur; This conducting film is the material of hydrogen and the saturating conduction of the resistance to highly basic of electrolyte, and this material is graphite-base composite material or carbon black based composites or hydrogen permeation alloy material or hydrogen permeation alloy composite material; Due to the metal impurities of negative material 40 all containing a small amount of low overpotential of hydrogen evolution, as iron etc., these impurity after the continuous discharge of battery heavy load easily and calamine cream generation evolving hydrogen reaction and produce hydrogen, this gas transmissive conducting film is also discharged by aforementioned steam vent 11, prevents battery inflatable, leakage even explodes.
Please refer to shown in Fig. 6, that show the concrete structure of the 5th preferred embodiment of the present invention, the concrete structure of the present embodiment is substantially identical with the concrete structure of aforementioned 4th preferred embodiment, difference is: in the present embodiment, this conducting film is arranged at the inner surface of negative cover 10 and is covered to the top of the outer ring body of negative cover 10, the contact area between conducting film and sealing ring 30 is increased with this, make the sealing property between negative cover 10 and anode cover 50 better, more effectively prevent the appearance of the phenomenon of leakage.
Please refer to shown in Fig. 7, that show the concrete structure of the 6th preferred embodiment of the present invention, the concrete structure of the present embodiment is substantially identical with the concrete structure of aforementioned second preferred embodiment, difference is: in the present embodiment, this negative cover 10 does not arrange steam vent 11, but between the outer ring body and the barrier film 71 of isolated location 70 of negative cover 10, be provided with the capillary channel 12 of exhaust, those capillary channels 12 instead of the steam vent 11 in aforementioned second preferred embodiment, the hydrogen produced when utilizing those capillary channels 12 that evolving hydrogen reaction is occurred in button cell inside is discharged, accumulated gases is avoided to make button cell inflatable in button cell inside, leakage is even exploded, the fail safe that further raising product uses.
Please refer to shown in Fig. 8, that show the concrete structure of the 7th preferred embodiment of the present invention, the concrete structure of the present embodiment is substantially identical with the concrete structure of aforementioned 3rd preferred embodiment, difference is: in the present embodiment, this negative cover 10 does not arrange steam vent 11, but between the outer ring body and the barrier film 71 of isolated location 70 of negative cover 10, be provided with the capillary channel 12 of exhaust, those capillary channels 12 instead of the steam vent 11 in aforementioned 3rd preferred embodiment, the hydrogen produced when utilizing those capillary channels 12 that evolving hydrogen reaction is occurred in button cell inside is discharged, accumulated gases is avoided to make button cell inflatable in button cell inside, leakage is even exploded, the fail safe that further raising product uses.
Please refer to shown in Fig. 9, that show the concrete structure of the 8th preferred embodiment of the present invention, the concrete structure of the present embodiment is substantially identical with the concrete structure of aforementioned 5th preferred embodiment, difference is: in the present embodiment, this negative cover 10 does not arrange steam vent 11, but between the outer ring body and the conducting film of isolated location 70 of negative cover 10, be provided with the capillary channel 12 of exhaust, those capillary channels 12 instead of the steam vent 11 in aforementioned 5th preferred embodiment, the hydrogen produced when utilizing those capillary channels 12 that evolving hydrogen reaction is occurred in button cell inside is discharged, accumulated gases is avoided to make button cell inflatable in button cell inside, leakage is even exploded, the fail safe that further raising product uses.
Embodiment shown in composition graphs 7 to Fig. 9, when in isolated location 70, barrier film 71 or conducting film are covered to the top of the outer ring body of negative cover 10 when, the capillary channel 12 that the present invention can arrange exhaust between the outer ring body of negative cover 10 and isolated location 70 carrys out the design of alternative steam vent 11.
Design focal point of the present invention is: first, by being provided with isolated location between negative cover and negative material, utilize this conducting film negative cover and negative material to be isolated to separate and prevent negative material from contacting with negative cover and evolving hydrogen reaction occurs, replace with this existing by plating indium or zinc-plated by the parent metal isolation form separately of negative material and negative cover.By this, on the one hand, be conducive to ensureing that negative material and negative cover keep isolation separately, effectively avoid negative material contact with negative cover and make the phenomenon that inflatable appears in product, leakage is even exploded, stopped potential safety hazard, the fail safe that product uses is better; On the other hand, the present invention is made in the middle of production in negative cover do not need to use plating indium or zinc-plated, effectively prevent owing to using chemical medicinal liquid etch indium layer or tin layers to need discharge or the pollution on the environment containing the trade effluent of the heavy metal ion such as indium Huo Han Chrome or cupric, be beneficial to environmental protection, also reduce the production cost of enterprise simultaneously, alleviate business burden.Secondly, by being provided with steam vent or being provided with the capillary channel of exhaust in negative cover between the outer ring body and isolated location of negative cover, the hydrogen produced when utilizing this steam vent or those capillary channels that evolving hydrogen reaction is occurred in button cell inside is discharged, avoid that accumulated gases makes button cell inflatable in button cell inside, leakage is even exploded, improve the fail safe that product uses further.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, thus every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. without the button cell that mercury is unleaded, include a negative cover, a positive electrode, a sealing ring, an anode cover, one and the negative material and of negative cover conducting for isolating the barrier film of positive electrode and negative material; This anode cover and negative cover are fastened and connected; Sealing circle is located between anode cover and negative cover, separates to be isolated from each other with negative cover by anode cover; This positive electrode is arranged at the inner bottom part of anode cover, and this barrier film is arranged at the top of positive electrode, and this negative material is installed between negative cover and barrier film; It is characterized in that: be provided with between this negative cover with negative material and separate for negative material and negative cover are isolated from each other and simultaneously by isolated location that negative material is connected with negative cover conducting, this isolated location is conducting film, this conducting film is arranged at the inner surface of negative cover and is covered to the bottom of the outer ring body of negative cover or top or between bottom and top, negative material is isolated from each other with negative cover and separates by this conducting film, and this conducting film conducting is connected between negative material and negative cover; Described conducting film is the material of hydrogen and the saturating conduction of the resistance to highly basic of electrolyte, and this material is graphite-base composite material or carbon black based composites or hydrogen permeation alloy material or hydrogen permeation alloy composite material.
2. the button cell unleaded without mercury according to claim 1, is characterized in that: described negative cover is provided with the capillary channel being provided with exhaust between the outer ring body of steam vent or this negative cover and isolated location.
3. the button cell unleaded without mercury according to claim 1, it is characterized in that: described negative cover adopts iron plate or the punching of ferrous metals sheet to form, the surface of this negative cover is at least coated with one deck nickel, or this negative cover directly adopts preplating sheet metal or laminated metal sheet punching to form.
4. the button cell unleaded without mercury according to claim 3, is characterized in that: described preplating sheet metal is add copper-plated steel band after nickel plated steel strip or the nickel plating of one side nickel plating another side.
5. the button cell unleaded without mercury according to claim 3, is characterized in that: described laminated metal sheet is nickel/stainless steel/nickel, or nickel/iron/nickel, or nickel/stainless steel/copper, or three layers of composite steel band of nickel/iron/copper, or nickel/stainless two layers of composite steel band.
6. the button cell unleaded without mercury according to claim 1, is characterized in that: described negative material is without the unleaded calamine cream of mercury.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149192.8A CN103258976B (en) | 2011-11-30 | 2011-11-30 | Without the button cell that mercury is unleaded |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149192.8A CN103258976B (en) | 2011-11-30 | 2011-11-30 | Without the button cell that mercury is unleaded |
| CN2011103897867A CN102412373B (en) | 2011-11-30 | 2011-11-30 | Mercury-free lead-free button battery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103897867A Division CN102412373B (en) | 2011-11-30 | 2011-11-30 | Mercury-free lead-free button battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103258976A CN103258976A (en) | 2013-08-21 |
| CN103258976B true CN103258976B (en) | 2015-08-19 |
Family
ID=45914331
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103897867A Active CN102412373B (en) | 2011-11-30 | 2011-11-30 | Mercury-free lead-free button battery |
| CN201310149192.8A Expired - Fee Related CN103258976B (en) | 2011-11-30 | 2011-11-30 | Without the button cell that mercury is unleaded |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103897867A Active CN102412373B (en) | 2011-11-30 | 2011-11-30 | Mercury-free lead-free button battery |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN102412373B (en) |
| HK (1) | HK1168207A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078652A1 (en) * | 2011-11-30 | 2013-06-06 | Liu Bin | Mercury-free lead-free button battery |
| CN202495486U (en) * | 2011-12-18 | 2012-10-17 | 肖秀华 | Mercury-free zinc-manganese and zinc-silver button battery |
| TWI473319B (en) | 2012-12-12 | 2015-02-11 | Asustek Comp Inc | Battery module and detecting method thereof |
| CN103560214A (en) * | 2013-11-16 | 2014-02-05 | 佛山市南海新光电池材料有限公司 | Mercury-free and lead-free environment-friendly button cell and manufacturing method thereof |
| CN104795515B (en) * | 2014-01-16 | 2017-04-26 | 东莞市昂力电池科技有限公司 | Button cell cover membrane combination body manufacturing method |
| CN107275683A (en) * | 2017-08-06 | 2017-10-20 | 朱程显 | Lithium coin cells with inside and outside steel loop |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532985A (en) * | 2003-03-21 | 2004-09-29 | �����ι�˾ | Button cell type electrochemical element and method for producing electrochemical element |
| CN1797811A (en) * | 2004-12-15 | 2006-07-05 | 精工电子微型器件有限公司 | Negative electrode can, alkaline cell and production method for same |
| CN2812311Y (en) * | 2005-06-03 | 2006-08-30 | 松栢电池厂有限公司 | An Hg-free button type alkaline cell |
| CN200941406Y (en) * | 2006-08-24 | 2007-08-29 | 广州市天球实业有限公司 | Non-mercury button cell |
| CN201289867Y (en) * | 2008-10-27 | 2009-08-12 | 株洲永盛电池材料有限公司 | Single side nickel-clad stainless steel band for fastening lithium ion cell case and cover |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11104856A (en) * | 1997-07-31 | 1999-04-20 | Sumitomo Special Metals Co Ltd | High-strength clad material having excellent tensile strength |
| CN202434588U (en) * | 2011-11-30 | 2012-09-12 | 刘膑 | Mercury-free and lead-free button cell |
-
2011
- 2011-11-30 CN CN2011103897867A patent/CN102412373B/en active Active
- 2011-11-30 CN CN201310149192.8A patent/CN103258976B/en not_active Expired - Fee Related
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2012
- 2012-09-13 HK HK12109010.3A patent/HK1168207A1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532985A (en) * | 2003-03-21 | 2004-09-29 | �����ι�˾ | Button cell type electrochemical element and method for producing electrochemical element |
| CN1797811A (en) * | 2004-12-15 | 2006-07-05 | 精工电子微型器件有限公司 | Negative electrode can, alkaline cell and production method for same |
| CN2812311Y (en) * | 2005-06-03 | 2006-08-30 | 松栢电池厂有限公司 | An Hg-free button type alkaline cell |
| CN200941406Y (en) * | 2006-08-24 | 2007-08-29 | 广州市天球实业有限公司 | Non-mercury button cell |
| CN201289867Y (en) * | 2008-10-27 | 2009-08-12 | 株洲永盛电池材料有限公司 | Single side nickel-clad stainless steel band for fastening lithium ion cell case and cover |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1168207A1 (en) | 2012-12-21 |
| CN102412373A (en) | 2012-04-11 |
| CN102412373B (en) | 2013-06-19 |
| CN103258976A (en) | 2013-08-21 |
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Effective date of registration: 20151203 Address after: 523383 Guangdong province Dongguan City Chashan town zengbuluwu Industrial Zone Po Village Patentee after: Dongguan ang Battery Technology Co., Ltd. Address before: 523000 Guangdong province Dongguan City Wanjiang City Community of Riverside Garden Cui Xin Yuan 6 6B Patentee before: Liu Bin |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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