CN103400947A - Maintenance-free lead-acid battery closure cap and maintenance-free lead-acid battery - Google Patents
Maintenance-free lead-acid battery closure cap and maintenance-free lead-acid battery Download PDFInfo
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- CN103400947A CN103400947A CN2013103349522A CN201310334952A CN103400947A CN 103400947 A CN103400947 A CN 103400947A CN 2013103349522 A CN2013103349522 A CN 2013103349522A CN 201310334952 A CN201310334952 A CN 201310334952A CN 103400947 A CN103400947 A CN 103400947A
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- lead accumulator
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- 239000002253 acid Substances 0.000 title abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 77
- 239000003792 electrolyte Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 210000005056 cell body Anatomy 0.000 claims description 23
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 40
- 239000007789 gas Substances 0.000 abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 13
- 239000001301 oxygen Substances 0.000 abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 11
- 239000001257 hydrogen Substances 0.000 abstract description 11
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 11
- 239000002131 composite material Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000003860 storage Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000978 Pb alloy Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001245 Sb alloy Inorganic materials 0.000 description 1
- 239000002140 antimony alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002142 lead-calcium alloy Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
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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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- Filling, Topping-Up Batteries (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention provides a maintenance-free lead-acid battery closure cap; the maintenance-free lead-acid battery closure cap includes a first cover plate, a second cover plate and a pressure limiting device; the first cover plate is provided with a liquid hole and a first groove path communicated with the liquid hole; the second cover plate is provided with a liquid hole plug and a second groove path, wherein the liquid hole plug matches with the liquid hole, the second groove path cooperates with the first groove path to form a through path, and the liquid hole plug is provided with a gap communicated with the second groove path; and the pressure limiting device is arranged at the terminal end of the through path formed by the first groove path and the second groove path. The invention provides a maintenance-free lead-acid battery including the maintenance-free lead-acid battery closure cap. The maintenance-free lead-acid battery closure cap is provided with a gas-liquid conversion chamber in which oxygen and hydrogen generated by a positive plate and a negative plate of the battery can be mixed to composite into water and flow back, overflowing of gases and sulfuric acid droplets in the battery can be effectively avoided, and water loss amount is less during charging, so that adequate electrolyte of the battery can be ensured, and cycle service life of the battery can be prolonged.
Description
Technical field
The present invention relates to the Lead-acid Battery Technology field, particularly a kind of maintenance-free lead accumulator closing cap and maintenance-free lead accumulator.
Background technology
For traditional lead acid accumulator (claiming again conventional accumulators), its electrode is to consist of plumbous and plumbous oxide, and the grid frame of pole plate is usually by the lead-antimony alloy manufacturing, and electrolyte is the aqueous solution of sulfuric acid, and major advantage is voltage stabilization and low price.In general, traditional lead acid accumulator comprises the battery cell body for electrodes, dividing plate and electrolyte, and be positioned on described battery cell body, be provided with the devices such as closing cap of liquid hole and vent plug, be provided with the battery closing cap of traditional through type vent plug as shown in Figure 1, Fig. 1 is the structural representation that is provided with the battery closing cap of traditional through type vent plug, wherein, 11 is closing cap; 12 is the liquid hole, does not mark vent plug in Fig. 1, described liquid hole and vent plug be mainly used in annotating electrolyte and emission gases.Traditional lead acid accumulator can cause moisture to reduce in a large number when electrolysis, produce simultaneously hydrogen and oxygen, sulfuric acid overflows in company with gas together with the form of droplet, so need regularly to detect and battery maintenance, make electrolyte remain on suitable level, thereby guarantee the normal operation of battery.Yet because needs are made regular check on the height of electrolyte and add distilled water, there is short and regular maintenance in the useful life shortcoming such as frequent in traditional lead acid accumulator.In view of this, various types of lead acid accumulators are all towards future developments such as non-maintaining and closures.
At present, the grid frame that maintenance-free lead accumulator adopts lead-calcium alloy to make usually, the water decomposition amount that produces during charging is less, and water evaporation quantity is low; Battery case adopts hermetically-sealed construction, is provided with safety valve on the battery closing cap, and the sulfuric acid gas that discharges also seldom.Traditional sealed maintenance-free lead acid battery is barren liquor type, be without the electrolyte that flows in battery, the glass fibre separator (AGM dividing plate) that uses not exclusively adsorbs sulfuric acid electrolyte, purpose is to make oxygen that accumulator anode board produces in the course of the work the aperture by the AGM dividing plate is diffused into negative plate from positive plate, and water generation reaction there, to avoid storage battery because of scrapping that dehydration causes.
But, for above-mentioned traditional barren liquor type maintenance-free lead-acid, when oxygen and hydrogen incomplete reaction, gas will be discharged from storage battery, sulfuric acid also will overflow in company with gas together with the form of droplet, make storage battery that early stage electrolyte solution loss occur, shortened the service life cycle of storage battery.
Summary of the invention
In order to solve above technical problem, the invention provides a kind of maintenance-free lead accumulator closing cap and maintenance-free lead accumulator, the maintenance-free lead accumulator when charging fluid loss that comprises closing cap provided by the invention is less, can extend the service life cycle of storage battery.
The invention provides a kind of maintenance-free lead accumulator closing cap, comprising:
The first cover plate, first tank circuit that is provided with the liquid hole on described the first cover plate and with described liquid hole, communicates;
The second cover plate, be provided with the vent plug that matches with described liquid hole and with described first tank circuit, coordinate second tank circuit that forms path on described the second cover plate, be provided with the gap that communicates with described second tank circuit on described vent plug;
Pressure limiting device, described pressure limiting device are arranged on described first tank circuit and coordinate the end of the path that forms with second tank circuit.
Preferably, described first tank circuit comprises the groove that communicates more than two, and the total length of described first tank circuit is greater than 400mm.
Preferably, described first tank circuit is symmetrical with respect to the liquid hole, take position, described liquid hole as in, the degree of depth of described first each groove of the tank circuit from inside to outside shoals gradually.
Preferably, described vent plug comprises the outer core that sets gradually, inner core, and described outer core and inner core form inner sandwich layer, and described inner in-core communicates with the liquid hole;
Be provided with the outer core gap that communicates with described second tank circuit on described outer core, be provided with inner core gap on described inner core, described inner sandwich layer communicates with described liquid hole by inner core gap.
Preferably, the width in the outer core gap of described vent plug and inner core gap is 2mm ± 0.2mm, and length is 20mm ± 2mm.
Preferably, described pressure limiting device comprises the cover plate with steam vent and the diaphragm seal that is arranged on described cover plate.
Preferably, in described pressure limiting device, the compressive resistance of described diaphragm seal is the 15mm water column.
The present invention also provides a kind of maintenance-free lead accumulator, comprising:
The battery cell body, be placed with pole plate, electrolyte and dividing plate in described battery cell body;
Be positioned at the maintenance-free lead accumulator closing cap mentioned above on described battery cell body.
Preferably, in described battery cell body, the high 30mm ± 10mm in position of the described pole plate of aspect ratio of described electrolyte.
Preferably, described dividing plate is the PE dividing plate.
Compared with prior art, maintenance-free lead accumulator provided by the invention comprises: the battery cell body is placed with pole plate, electrolyte and dividing plate in described battery cell body; With the maintenance-free lead accumulator closing cap that is positioned on described battery cell body.Wherein, described maintenance-free lead accumulator closing cap comprises: be provided with the first cover plate of liquid hole and first tank circuit, described first tank circuit communicates with the liquid hole; Be provided with the second cover plate of vent plug and second tank circuit, described vent plug matches with the liquid hole, is provided with the gap that communicates with second tank circuit on described vent plug, and described second tank circuit coordinates the formation path with first tank circuit; And be arranged on described first tank circuit and coordinate the pressure limiting device of the end of the path that forms with second tank circuit.In charging process, the oxygen that described maintenance-free lead accumulator produces and hydrogen and the gap of sulfuric acid droplets from the liquid hole along vent plug wherein spill into path, pass through again the path of certain-length, sulfuric acid droplets is condensed and the liquid of gas chemical combination can flow to from the end of path the liquid hole, flows in storage battery and is recycled finally.Wherein, the anti-certain pressure of pressure limiting device that the end of path arranges, can make gas fully compound.Storage battery produces in charging process gas, through described pressure limiting device, is prescribed a time limit greater than upper to pressure when air accumulation, and gas can be discharged; When pressure is not more than in limited time, under the effect of pressure limiting device, oxygen, hydrogen composition generation water that storage battery produces, be back in battery to recycle, and also for the sedimentation of sulfuric acid droplets, created condition simultaneously.
That is to say, the gap of the vent plug of maintenance-free lead accumulator closing cap of the present invention and vent plug to the path between pressure limiting device has formed a gas-liquid conversion chamber, the oxygen that accumulator positive, negative plate can be generated, hydrogen are at the useful space composition generation water of certain pressure, and reflux cycle is used.Therefore, the present invention can effectively avoid the gas of storage battery and sulfuric acid droplets to overflow battery, and during charging, fluid loss is less, thereby guarantees that battery liquid is sufficient, extends the service life cycle of storage battery.
Further, maintenance-free lead accumulator of the present invention is selected the PE dividing plate, adopts the pregnant solution type structure, keeps the rich solution state, also is beneficial to and guarantees that battery liquid is sufficient.
Description of drawings
Fig. 1 is the structural representation that is provided with the battery closing cap of traditional through type vent plug;
The structural representation front view of the maintenance-free lead accumulator closing cap that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the vent plug AA that Fig. 3 provides for the embodiment of the present invention;
The structural representation end view of the maintenance-free lead accumulator closing cap that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the pressure limiting device B that Fig. 5 provides for the embodiment of the present invention;
The schematic diagram of the maintenance-free lead accumulator that Fig. 6 provides for the embodiment of the present invention.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these are described is for further illustrating the features and advantages of the present invention, rather than limiting to the claimed invention.
The invention provides a kind of maintenance-free lead accumulator closing cap, comprising:
The first cover plate, first tank circuit that is provided with the liquid hole on described the first cover plate and with described liquid hole, communicates;
The second cover plate, be provided with the vent plug that matches with described liquid hole and with described first tank circuit, coordinate second tank circuit that forms path on described the second cover plate, be provided with the gap that communicates with described second tank circuit on described vent plug;
Pressure limiting device, described pressure limiting device are arranged on described first tank circuit and coordinate the end of the path that forms with second tank circuit.
Maintenance-free lead accumulator closing cap provided by the invention has the gas-liquid conversion chamber that consists of the first cover plate, the second cover plate and pressure limiting device, space and the length of appropriate design gas-liquid conversion chamber of the present invention, the restriction certain pressure, the gas that produces while making charge in batteries is compound in described gas-liquid conversion chamber, and emission gases during superpressure, the gas that has changed so existing barren liquor type battery moves compound gas recombination mode by partition pores, fluid loss in the time of reducing the maintenance-free lead accumulator charging, thereby the service life cycle of prolongation storage battery.
The structure of the maintenance-free lead accumulator closing cap that the embodiment of the present invention provides is referring to Fig. 2, the structural representation front view of the maintenance-free lead accumulator closing cap that Fig. 2 provides for the embodiment of the present invention.In Fig. 2, A is the liquid hole, and B is pressure limiting device, and D is that first tank circuit and second tank circuit coordinate the path that forms.
In the present invention, described maintenance-free lead accumulator closing cap comprises the first cover plate, first tank circuit that is provided with liquid hole A on it and with liquid hole A, communicates.
Described maintenance-free lead accumulator closing cap comprises the second cover plate, be provided with vent plug and second tank circuit on it, be provided with the gap that communicates with described second tank circuit on described vent plug, described vent plug matches with liquid hole A, and described second tank circuit coordinates formation path D with first tank circuit.
In charging process, the oxygen that described maintenance-free lead accumulator produces and hydrogen and the gap of sulfuric acid droplets from liquid hole A along vent plug wherein spill into path D, pass through again the path D of certain-length, sulfuric acid droplets is condensed and the liquid of gas chemical combination can flow to from the end of path D liquid hole A, flows in storage battery and is recycled finally.
In the present invention, apertured vent plug being set matches with liquid hole A.The structure of described vent plug is referring to Fig. 3, the structural representation of the vent plug AA that Fig. 3 provides for the embodiment of the present invention.In vent plug AA shown in Figure 3,31 is outer core, and 32 is inner core, and 33 is outer core gap, and 34 is inner core gap.
In one embodiment of the invention, vent plug AA comprises outer core 31, the inner core 32 that sets gradually, and sandwich layer in outer core 31 forms with inner core 32, communicate with liquid hole A in inner core 32;
Be provided with the outer core gap 33 that communicates with described second tank circuit on outer core 31, be provided with inner core gap 34 on inner core 32, described inner sandwich layer communicates with liquid hole A by inner core gap 34.
In charging process, the oxygen that storage battery produces and hydrogen and sulfuric acid droplets wherein spill into path D to outer core gap 33 along core gap 34 in vent plug AA from liquid hole A.
The present invention does not have particular restriction to the gap size of described vent plug, and in one embodiment of the invention, the width in the outer core gap of described vent plug and inner core gap is 2mm ± 0.2mm, and length is 20mm ± 2mm.The outer core gap of described vent plug can be different from the width in inner core gap, and length also can be different, can be shorter than the length in inner core gap as the length in outer core gap.The present invention does not have particular restriction to the diameter of described liquid hole and vent plug, and the diameter that has the liquid hole according to this area now gets final product.
In the present invention, path D be described vent plug to the gas circuit between pressure limiting device, coordinate and form with second tank circuit by first tank circuit; Described first tank circuit is arranged on the first cover plate, and A communicates with the liquid hole; Described second tank circuit is arranged on the second cover plate, with the gap on vent plug, communicates.That is to say, arranging of the groove of the groove of described first tank circuit and second tank circuit is identical, the corresponding path that becomes, gas and the liquid gap from the liquid hole along vent plug is spilt into wherein, and described gas is combined into water therein, with described liquid, together flow to the liquid hole, flows in storage battery finally.
In the present invention, described first tank circuit preferably includes the groove that communicates more than two, more preferably comprises the groove that communicates more than ten; The total length of described first tank circuit is preferably greater than 400mm.In one embodiment of the invention, described first tank circuit comprises 27 grooves that communicate, and total length, greater than 400mm, forms the path of the complications of certain-length like this, is beneficial to and carries out the gas-liquid conversion.
In the present invention, described first tank circuit is preferably symmetrical with respect to the liquid hole; The width of described first each groove of the tank circuit is preferably identical, is convenient to processing, and it all is preferably 3mm ± 0.5mm; The degree of depth of described first each groove of the tank circuit can be identical, all is preferably 15mm ± 5mm, also can be different.In one embodiment of the invention, described first tank circuit is symmetrical with respect to the liquid hole, take position, described liquid hole as in, the degree of depth of described first each groove of the tank circuit from inside to outside shoals gradually; The degree of depth of each groove from inside to outside can reduce gradually in the scope of 15mm ± 5mm.Referring to Fig. 4, the structural representation end view of the maintenance-free lead accumulator closing cap that Fig. 4 provides for the embodiment of the present invention.In Fig. 4, C is the groove of outermost end.Namely, the embodiment of the present invention is take the liquid hole as lowest surfaces, and for the highest, slope is formed on the bottom in path with the outermost end of first tank circuit, be conducive to like this sulfuric acid droplets and solidify liquid with gas chemical combination from the outer end, path along slope current to the liquid hole, flow into finally storage battery and be recycled.
In the present invention, fully compound for making gas, described maintenance-free lead accumulator closing cap comprises pressure limiting device B, and it is arranged on described first tank circuit and coordinates the end of the path D that forms with second tank circuit.The structure of described pressure limiting device is referring to Fig. 5, the structural representation of the pressure limiting device B that Fig. 5 provides for the embodiment of the present invention.In pressure limiting device B shown in Figure 5,51 is cover plate, and 52 is steam vent, and 53 is diaphragm seal.
In one embodiment of the invention, pressure limiting device B comprises the cover plate 51 with steam vent 52 and the diaphragm seal 53 that is arranged on cover plate 51.
In pressure limiting device B, the size of steam vent 52 gets final product according to the size of the existing steam vent in this area.The diameter of diaphragm seal 53 is preferably 10mm ± 2mm, and thickness is preferably 5mm ± 2mm; Material can be PP or PE; Compressive resistance is preferably the 15mm water column, and gas flow is preferably 500mL/min ± 50mL/min.
Storage battery produces in charging process gas is through pressure limiting device B, and to pressure during greater than above higher limit, gas can be discharged when air accumulation; When pressure was not more than described higher limit, under the effect of pressure limiting device, oxygen, hydrogen composition generation water that storage battery produces, be back in battery to recycle, and also for the sedimentation of sulfuric acid droplets, created condition simultaneously.
In the present invention, described the first cover plate, the second cover plate, vent plug and pressure limiting device all adopt this area material commonly used to make and get final product, and size can arrange according to actual requirement.The embodiment of the present invention can the first cover plate be large lid, and take the second cover plate as tegillum, tegillum is placed on large lid.Described vent plug and pressure limiting device can with the one-body molded processing of corresponding cover plate, also can process again and assemble separately.
In sum, in maintenance-free lead accumulator closing cap of the present invention, the gap of vent plug and vent plug to the path between pressure limiting device has formed a gas-liquid conversion chamber, the oxygen that accumulator positive, negative plate can be generated, hydrogen are at the useful space composition generation water of certain pressure, and reflux cycle is used.Therefore, the present invention can effectively avoid the gas of storage battery and sulfuric acid droplets to overflow battery, and during charging, fluid loss is less, thereby guarantees that battery liquid is sufficient, extends the service life cycle of storage battery.
The present invention also provides a kind of maintenance-free lead accumulator, comprising:
The battery cell body, be placed with pole plate, electrolyte and dividing plate in described battery cell body;
Be positioned at the maintenance-free lead accumulator closing cap mentioned above on described battery cell body.
Maintenance-free lead accumulator provided by the invention comprises closing cap mentioned above, the problem of the early stage capacitance loss that the dilute sulfuric acid electrolyte that has solved existing maintenance free cell causes because of dehydration, during charging, fluid loss is less, thereby has long service life cycle.
The maintenance-free lead accumulator that the embodiment of the present invention provides is referring to Fig. 6, the schematic diagram of the maintenance-free lead accumulator that Fig. 6 provides for the embodiment of the present invention.In Fig. 6,61 is the battery cell body, and 62 is the maintenance-free lead accumulator closing cap.
In the present invention, described maintenance-free lead accumulator comprises battery cell body 61, is placed with pole plate, electrolyte and dividing plate in it.The present invention does not have particular restriction to material and the size of described battery cell body, and the pole plate of placing in described battery cell body, electrolyte and dividing plate adopt commonly used the getting final product in this area, and the present invention there is no particular restriction, as adopting this area sulfuric acid electrolyte commonly used.
In battery cell body 61, the high 30mm ± 10mm of location optimization of the described pole plate of aspect ratio of described electrolyte, be pregnant solution type; Described dividing plate is preferably the PE dividing plate, and oxygen channel in dividing plate is stopped up.The present invention preferably adopts the pregnant solution type structure, keeps the rich solution state, is beneficial to and guarantees that battery liquid is sufficient.
In the present invention, described maintenance-free lead accumulator comprises maintenance-free lead accumulator closing cap 62.Described maintenance-free lead accumulator closing cap is closing cap mentioned above, has the gas-liquid conversion chamber, oxygen, hydrogen that positive and negative pole plate generates can be combined into water in the useful space of this certain pressure, reflux cycle is used, thereby extends the service life cycle of storage battery.
, in order further to understand the present invention, below in conjunction with embodiment, maintenance-free lead accumulator closing cap provided by the invention and maintenance-free lead accumulator are specifically described.
As shown in Figure 6, anode plate for lead acid accumulator and negative plate, PE dividing plate are placed in battery cell body 61 and assemble, pour into electrolyte, add maintenance-free lead accumulator closing cap 62, make 12V, the 100Ah maintenance-free lead accumulator with gas-liquid conversion chamber pregnant solution type.
Wherein, the lead plaster of manufacturing positive plate comprises the sulfuric acid of 5wt%, the water of 15wt%, the short fiber of 0.1wt%, the graphite powder of 0.05wt%, the ptfe emulsion of 0.05wt% and the lead powder of surplus; The lead alloy of making positive plate comprises the Ag of Bi, 0.02wt% of Al, 0.04wt% of Sn, 0.05wt% of 0.1wt%Ca, 0.15wt% and the Pb of surplus.
The high 30mm in position of the aspect ratio pole plate of described electrolyte.
Maintenance-free lead accumulator closing cap 62 comprises: the first cover plate, first tank circuit that is provided with liquid hole A on it and with liquid hole A, communicates; The second cover plate, be provided with vent plug AA and second tank circuit on it, be provided with the gap that communicates with described second tank circuit on described vent plug, and described vent plug matches with liquid hole A, and described second tank circuit coordinates formation path D with first tank circuit; Pressure limiting device B, it is arranged on described first tank circuit and coordinates the end of the path D that forms with second tank circuit.
In maintenance-free lead accumulator closing cap 62, as shown in Figure 3, vent plug AA comprises outer core 31, the inner core 32 that sets gradually, and sandwich layer in outer core 31 forms with inner core 32, communicate with liquid hole A in inner core 32; Be provided with the outer core gap 33 that communicates with described second tank circuit on outer core 31, be provided with inner core gap 34 on inner core 32, described inner sandwich layer communicates with liquid hole A by inner core gap 34.The width in the outer core gap of described vent plug and inner core gap is 2mm, and length is 20mm.
As shown in Figure 2 and Figure 4, first tank circuit comprises 27 grooves that communicate, and total length is greater than 400mm, and the width of each groove is 3mm; First tank circuit is symmetrical with respect to liquid hole A, take position, described liquid hole as in, the degree of depth of described first each groove of the tank circuit from inside to outside shoals gradually; The degree of depth of each groove from inside to outside reduces gradually in the scope of 15mm ± 5mm.
As shown in Figure 5, pressure limiting device B comprises the cover plate 51 with steam vent 52 and the diaphragm seal 53 that is arranged on cover plate 51.The diameter of diaphragm seal 53 is 10mm, and thickness is 5mm; Material is PE; Compressive resistance is the 15mm water column, and gas flow is 500mL/min.
According to CNS " lead-acid starter battery part 1: technical conditions and test method " GB/T5008.1-2013, to the test of charging of described maintenance-free lead accumulator, charging system is complete rechargeable battery, with 14.4V ± 0.05V constant voltage charge 500h.The test result demonstration, charging test fluid loss is 0.2g/Ah.
Comparative example 1
Anode plate for lead acid accumulator and negative plate, PE dividing plate are placed in the battery cell body and assemble, pour into electrolyte, add the battery closing cap that is provided with traditional through type vent plug, make 12V, the 100Ah maintenance-free lead accumulator with through type vent plug pregnant solution type.
Wherein, lead plaster, the lead alloy of manufacturing positive plate are all identical with lead plaster, lead alloy in embodiment 1.
The high 30mm in position of the aspect ratio pole plate of described electrolyte.
Be provided with the battery closing cap of traditional through type vent plug as shown in Figure 1.
According to the method in embodiment 1, to the test of charging of described maintenance-free lead accumulator.The test result demonstration, charging test fluid loss is 1.03g/Ah.
During maintenance-free lead accumulator charging that by above embodiment and comparative example as can be known, the embodiment of the present invention provides, fluid loss is less.Show the gas recombination Cheng Shui that the gas-liquid conversion chamber in the present invention produces charge in batteries, be back to storage battery and recycle, thereby make the fluid loss of storage battery lower, the early time discards loss of having avoided storage battery to cause because of dehydration.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of the claims in the present invention.
Claims (10)
1. maintenance-free lead accumulator closing cap comprises:
The first cover plate, first tank circuit that is provided with the liquid hole on described the first cover plate and with described liquid hole, communicates;
The second cover plate, be provided with the vent plug that matches with described liquid hole and with described first tank circuit, coordinate second tank circuit that forms path on described the second cover plate, be provided with the gap that communicates with described second tank circuit on described vent plug;
Pressure limiting device, described pressure limiting device are arranged on described first tank circuit and coordinate the end of the path that forms with second tank circuit.
2. maintenance-free lead accumulator closing cap according to claim 1, is characterized in that, described first tank circuit comprises the groove that communicates more than two, and the total length of described first tank circuit is greater than 400mm.
3. maintenance-free lead accumulator closing cap according to claim 2, is characterized in that, described first tank circuit is symmetrical with respect to the liquid hole, take position, described liquid hole as in, the degree of depth of described first each groove of the tank circuit from inside to outside shoals gradually.
4. maintenance-free lead accumulator closing cap according to claim 3, is characterized in that, described vent plug comprises the outer core that sets gradually, inner core, and described outer core and inner core form inner sandwich layer, and described inner in-core communicates with the liquid hole;
Be provided with the outer core gap that communicates with described second tank circuit on described outer core, be provided with inner core gap on described inner core, described inner sandwich layer communicates with described liquid hole by inner core gap.
5. maintenance-free lead accumulator closing cap according to claim 4, is characterized in that, the width in the outer core gap of described vent plug and inner core gap is 2mm ± 0.2mm, and length is 20mm ± 2mm.
6. maintenance-free lead accumulator closing cap according to claim 5, is characterized in that, described pressure limiting device comprises the cover plate with steam vent and the diaphragm seal that is arranged on described cover plate.
7. maintenance-free lead accumulator closing cap according to claim 6, is characterized in that, in described pressure limiting device, the compressive resistance of described diaphragm seal is the 15mm water column.
8. maintenance-free lead accumulator comprises:
The battery cell body, be placed with pole plate, electrolyte and dividing plate in described battery cell body;
Be positioned at the described maintenance-free lead accumulator closing cap of claim 1～7 any one on described battery cell body.
9. maintenance-free lead accumulator according to claim 8, is characterized in that, in described battery cell body, and the high 30mm ± 10mm in position of the described pole plate of aspect ratio of described electrolyte.
10. maintenance-free lead accumulator according to claim 9, is characterized in that, described dividing plate is the PE dividing plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310334952.2A CN103400947B (en) | 2013-08-02 | 2013-08-02 | Maintenance-free lead accumulator closing cap and maintenance-free lead accumulator |
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| CN201310334952.2A CN103400947B (en) | 2013-08-02 | 2013-08-02 | Maintenance-free lead accumulator closing cap and maintenance-free lead accumulator |
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| CN103400947A true CN103400947A (en) | 2013-11-20 |
| CN103400947B CN103400947B (en) | 2016-02-24 |
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| CN109565097A (en) * | 2016-07-22 | 2019-04-02 | 南特能源公司 | The demister system of electrochemical cell |
| US11664547B2 (en) | 2016-07-22 | 2023-05-30 | Form Energy, Inc. | Moisture and carbon dioxide management system in electrochemical cells |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103400947B (en) | 2016-02-24 |
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Application publication date: 20131120 Assignee: Yancheng Nuohao Xinxiang Technology Co.,Ltd. Assignor: Yancheng Silk Road Information Technology Service Co.,Ltd. Contract record no.: X2023980043986 Denomination of invention: Maintenance free lead-acid battery closure cover and maintenance free lead-acid battery Granted publication date: 20160224 License type: Common License Record date: 20231024 |
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Application publication date: 20131120 Assignee: Jiangsu Jiezhimeng New Energy Technology Co.,Ltd.|Yancheng Yuanshun Environmental Protection Technology Co.,Ltd.|Jiangsu Xingneng Environmental Protection Technology Co.,Ltd.|Tianneng carbon (Jiangsu) Co.,Ltd. Assignor: Yancheng Silk Road Information Technology Service Co.,Ltd. Contract record no.: X2023980047304 Denomination of invention: Maintenance free lead-acid battery cover and maintenance free lead-acid battery Granted publication date: 20160224 License type: Common License Record date: 20231118 |
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Assignee: Yancheng Nuohao Xinxiang Technology Co.,Ltd. Assignor: Yancheng Silk Road Information Technology Service Co.,Ltd. Contract record no.: X2023980043986 Date of cancellation: 20240425 Assignee: Jiangsu Jiezhimeng New Energy Technology Co.,Ltd.|Yancheng Yuanshun Environmental Protection Technology Co.,Ltd.|Jiangsu Xingneng Environmental Protection Technology Co.,Ltd.|Tianneng carbon (Jiangsu) Co.,Ltd. Assignor: Yancheng Silk Road Information Technology Service Co.,Ltd. Contract record no.: X2023980047304 Date of cancellation: 20240425 |