CN104518201B - Lead accumulator - Google Patents
Lead accumulator Download PDFInfo
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- CN104518201B CN104518201B CN201310462517.8A CN201310462517A CN104518201B CN 104518201 B CN104518201 B CN 104518201B CN 201310462517 A CN201310462517 A CN 201310462517A CN 104518201 B CN104518201 B CN 104518201B
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- plate
- mentioned
- lead accumulator
- pole plate
- electrolyte
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- 238000005192 partition Methods 0.000 claims abstract description 56
- 239000003792 electrolyte Substances 0.000 claims abstract description 53
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 34
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 239000011149 active material Substances 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 20
- 239000006071 cream Substances 0.000 claims description 13
- 239000007774 positive electrode material Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 239000007773 negative electrode material Substances 0.000 claims description 4
- 239000002000 Electrolyte additive Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 29
- 239000011133 lead Substances 0.000 description 135
- 239000002994 raw material Substances 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 16
- 239000011505 plaster Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 15
- 229910052760 oxygen Inorganic materials 0.000 description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 12
- 210000004027 cell Anatomy 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000003556 assay Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005138 cryopreservation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001999 grid alloy Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000010220 ion permeability Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010010 raising Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/44—Fibrous material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/431—Inorganic material
- H01M50/434—Ceramics
- H01M50/437—Glass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
- H01M4/73—Grids for lead-acid accumulators, e.g. frame plates
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention relates to a kind of lead accumulators, it is with multiple element cells, the element cell has electrode assembly, electrolyte and element cell room, the electrode assembly and the electrolyte are accommodated in the element cell room, the electrode assembly is alternately arranged across partition board by multi-disc positive plate and multi-disc negative plate, the partition board is AGM partition boards, and the density of the partition board in the state that electrode assembly and the electrolyte are accommodated in the element cell room is 117~129g/dm3Range, at least one of the positive plate and the negative plate pole plate have following structures：The collector of the pole plate is to draw in the net grid made of daraf(reciprocal of farad) cutting, and the pole plate is made of two raised convex ends and the flat middle section between the two ends, and the thickness of the end is more than the thickness of the middle section.The lead accumulator of the present invention can be achieved at the same time good cycle life, efficiency for charge-discharge, discharge capacity and high rate discharging capacity.
Description
Technical field
The present invention relates to lead accumulators, specifically, being related to life characteristic, charge efficiency characteristic, high rate discharging characteristic all
Excellent lead accumulator.
Background technology
Lead accumulator is applied not only to start power supply, mains lighting supply and the stand-by power supply of vehicle, is also widely used in main power source use
On the way, that is, it is used as independent charging/discharging apparatus power supply such as electric vehicle, electri forklift, electric pallet truck, electric motor coach, electrical salf-walking
The electrical source of power of vehicle, battery-operated motor cycle, Segway Human Transporter, small-sized electric vehicle using motor, golf cart, electric locomotive etc., the sun
The apparatus for storing electrical energy such as battery can be used.At these on the way, the work characteristics of lead accumulator is：Electric current is big when startup, when driving
Discharge current is smaller, and discharge time is long.At the same time, the maintaining of reduction lead accumulator is also required, and also lead is required to store
Battery has longer cycle life.In terms of the long lifetime of battery, it is common practice to：It is added in electrode assembly by improving
Pressure and push down positive active material with partition board, to inhibit the expansion of positive active material, prevent positive active material
Fall off.But with the enlargement of battery, needs to change its material for the electric slot of enhancing or increase the wall thickness of electric slot, even if
In this way, it is also difficult to apply in electrode assembly and maintain pressure appropriate.Lead accumulator with its usage time extension, because of anode
The oxidation of collector and generate corrosion, thus cause the sectional area of positive electrode collector to reduce, the electric conductivity of entire positive plate declines.
As a result, voltage characteristic when battery carries out high rate discharging declines.When the corrosion of such positive electrode collector further develops,
Final positive electrode collector itself is broken.Thus battery capacity is caused to decline and life termination rapidly.
During lead accumulator use, when charge and discharge are repeated, battery performance can continuously decrease.When cell performance
When can reduce, inner pressure of battery rises sometimes, to apply larger pressure between positive plate and negative plate.At this moment, electrode
Group is easy to happen compression or deformation.That is, inner pressure of battery rise when electrode group have the tendency that being easy to be squeezed it is bad.
On the other hand, as the miniaturization of electronic equipment and lightweight rapidly develop, the lead electric power storage as power supply is also required
Pond has smaller volume and higher charge/discharge capacity, and it is to keep capacity constant to reduce the distance between battery plus-negative plate plate
In the case of reduce the effective way of volume, but positive/negative plate is by obtain the too close danger for just having internal short-circuit.Work as positive plate
When short circuit occurs with negative plate, internal temperature of battery can rise, and at this moment electrode assembly also be required to have the function of ensuring safety.And
And from maintain battery power characteristic and charge/discharge capacity from the viewpoint of, it is also necessary to ensure the ion permeability of electrode assembly with
And absorb and keep the performance of electrolyte.
On how to improve comprehensive performance such as cycle life, capacity and the efficiency for charge-discharge of lead accumulator, the prior art
In in grid alloy, lead paste formula etc. is considered, and is largely effected in view of the structure and performance of pole plate
Volume, power characteristic, charge/discharge capacity and the cycle life of lead accumulator, thus performance and structure to pole plate always into
The various researchs of row.
Chinese utility model patent CN201820837U discloses a kind of iso-deflection paste concealing plate for double side pasting, to be solved
Certainly the technical issues of is：The existing working face for hiding cream plate lower end is plane, and when going out cream, there is lead plaster certain pressure to make pole plate
It is recessed, it hides the distance among cream plate and pole plate and increases, centre applies cream amount and increases relatively, during the green plate after double-face coating plate is often
Between it is thicker, both sides are thin, and plate buckling is serious after solidification, affect the quality of pole plate.Above-mentioned iso-deflection paste concealing plate for double side pasting
Cream plate is hidden including hiding cream plate, running through above and below the paste outlet hidden in cream plate for polar plate plaster coating, above-mentioned paste outlet, feature exists
In：The working face for hiding cream plate lower end is in outer convex arch.It is mutually equipped with compensation in the working face and recessed pole plate of outer convex arch
The deflection of pole plate keeps the painting cream thickness of pole plate essentially identical, improves product quality.
Chinese utility model patent CN201906687U discloses a kind of eccentric adjusting dress of coating machine controlling plate thickness
Set, the eccentric adjuster can random detection electrode thickness in actual use, such as fluctuation occur can be in non-stop-machine state
Lower carry out dynamic regulation ensures consistent by the electrode thickness of coating machine.
Japanese Patent Laid-Open No. Sho 57-21068 discloses a kind of manufacturing method of hermetic type lead accumulator anode, feature
It is, paste density is down to 3.0~3.4g/cm3（Common paste density is 3.7~4.1g/cm3）Active material lead plaster quilt
It is filled in grid.This method the technical problem to be solved is that：Positive plate is improved by reducing the paste density of positive plate
Vesicularity, so as to improve the sudden discharge characteristic of hermetic type lead accumulator, but in order to inhibit due to reducing paste density
Caused by service life reduction, the aqueous liquid dispersion of polytetrafluoroethylene (PTFE) is added in lead plaster.
The clear 58-223259 of Japan Patent discloses a kind of manufacturing method of chloride plate, which is characterized in that by lead
It is certain to separating in its longitudinal direction or after band-like the cutting of metal formation fills active material lead plaster in daraf(reciprocal of farad) flase floor
Interval pressurizeed, compressed with the cutting portions of several width, the central cutout of the cutting portion is made to single pole plate, so
After be dried.As shown in Fig. 4 in the document, the thickness of two ends of the pole plate made from the manufacturing method compares middle part
Divide thinner.The technical problem to be solved is that previous in cutting portion active materials retentivity in order to overcome for the manufacturing method
It is weak, the shortcomings that active material is easy to fall off.
Japanese Patent Laid-Open 2007-258088 discloses a kind of side at one end, and there is current collection to be filled in the grille body of ear
Lead accumulator pole plate made of active material, wherein above-mentioned grille body is gradual to another side from above-mentioned one end side with its thickness
The mode to thicken is formed, and above-mentioned active material layer is gradually thinning to another side from one end side of above-mentioned grille body with its thickness
Mode formed so that by above-mentioned grille body thickness and cover the grille body the sum of the thickness of active material layer obtain
The thickness of pole plate be essentially equal from the one end of above-mentioned grille body to another side.Above-mentioned lead accumulator pole plate can be to prevent
Only the thickness of the active material layer near the ear of grating body is excessively thin and a part for grille body is caused to be exposed, to
It can prevent the reduction of battery performance.
Japanese Patent Laid-Open 2003-86175 disclose it is a kind of without uneven thickness, it is flat without concave-convex and surface on the surface
Sliding lead accumulator filling pole plate is to make to fill active material lead plaster on substrate and what is obtained after carrying out drying process fills out
It fills pole plate between the roll gap of roll squeezer to pass through, uniform thickness is obtained to be squeezed the thickness for filling pole plate, and
Attachment and protrusion on filling pole plate two sides etc. is set to become flat.Above-mentioned lead accumulator filling pole plate can be better protected from
The defects of causing short circuit.
It can be seen that in the prior art, it is generally recognized that the surface of lead accumulator pole plate is flat, thickness uniformly stores lead
The performance of battery is advantageous, and is conducive to the chemical conversion of assembly and the charging of battery in this way.Moreover, in the prior art, to pole
The design of plate has also carried out considering and has been found that certain methods, such as described above, by reduce the paste density of positive plate come
The vesicularity for improving positive plate, so as to improve the sudden discharge characteristic of hermetic type lead accumulator, but reduction paste density can cause
The service life reduction of battery；Or it is thinner than middle section by the thickness of two ends of pole plate, it lives in end to overcome
The shortcomings that property substance retentivity is weak, and active material is easy to fall off.
But when polar board surface is flat, and electrode thickness is consistent, make chemical reaction more since more sulfuric acid cannot be stored
Mostly carry out, thus capacity is difficult to continue to improve, and it is possible to it is unable to reach designed initial capacity.Moreover, working as pole plate
Surface is flat, and when electrode thickness is consistent, the spacing between positive plate and negative plate is too small, there is the hidden danger of short circuit, to influence
Cycle life.In addition, since pole plate is excessively flat, partition board contacts the oxygen overstocked, positive plate is made to be generated in latter stage of charging with pole plate
Gas cannot be diffused into cathode in time, influence the compound of oxygen, charge efficiency is made to reduce.
Chinese patent application CN102593430A provides a kind of lead accumulator pole plate and its manufacturing method, above-mentioned pole plate
It is made of two raised convex ends and the flat middle section between the two ends, the thickness of above-mentioned end
Degree more than above-mentioned middle section thickness, when set the thickness of above-mentioned middle section as H2, the thickness of above-mentioned end and among the above
Between the difference of thickness of part when being H1, the ratio H1/H2 of H1 and H2 is 3%~9%.The invention by by plate designs in end
It is formed with protrusion and becomes raised convex end, the thickness of the end of pole plate is thus made to be more than the other parts of pole plate
Thickness which thereby enhance the cycle life of battery, hold so that the spacing between positive plate and negative plate moderately becomes larger
Amount and charge efficiency.
But life characteristic, charge efficiency characteristic and the high rate that the present invention wants further to improve lead accumulator simultaneously are put
Electrical characteristics, to provide the lead accumulator that comprehensive performance further significantly improves.
Invention content
The technical problems to be solved by the invention
The purpose of the present invention is to provide cycle life, charge efficiency, discharge capacity and high rate discharging characteristic are all excellent
Lead accumulator.
Solve the means of the technical problem
The present invention at protrusion is formed in end by making the thickness of the end of pole plate be more than pole plate plate designs
Thus the thickness of other parts solves above-mentioned technical problem and at the same time using high density partition board.
That is, the present invention provides the following technical solution.
（1）A kind of lead accumulator, with multiple element cells, said units battery have electrode assembly, electrolyte and
Element cell room, above-mentioned electrode assembly and above-mentioned electrolyte are accommodated in said units battery chamber, above-mentioned electrode assembly be by multi-disc just
Pole plate and multi-disc negative plate are alternately arranged across partition board, above-mentioned positive plate include with positive pole ear positive electrode collector and
The positive electrode active material layer kept by the positive electrode collector, above-mentioned negative plate include with negative lug negative electrode collector and by
The negative electrode active material layer that above-mentioned negative electrode collector is kept, which is characterized in that aforementioned barriers are AGM partition boards, in above-mentioned electrode assembly
The density of aforementioned barriers in the state of being accommodated in said units battery chamber with above-mentioned electrolyte is 117~129g/dm3Model
It encloses, at least one of above-mentioned positive plate and above-mentioned negative plate pole plate have following structures：The collector of above-mentioned pole plate is by cutting
Seine grid made of daraf(reciprocal of farad), above-mentioned pole plate are flat by two raised convex ends and between the two ends
Smooth middle section composition, the thickness of above-mentioned end are more than the thickness of above-mentioned middle section, when the thickness for setting above-mentioned middle section
For H2, when the difference of the thickness of the thickness of above-mentioned end and above-mentioned middle section is H1, the ratio H1/H2 of H1 and H2 are 3%~9%.
（2）It is above-mentioned（1）The lead accumulator, which is characterized in that above-mentioned ratio H1/H2 is 4%~8%.
（3）It is above-mentioned（1）The lead accumulator, which is characterized in that the width of above-mentioned end is the overall width of above-mentioned pole plate
5%~25%.
（4）It is above-mentioned（3）The lead accumulator, which is characterized in that the width of above-mentioned end is the overall width of above-mentioned pole plate
10%~20%.
（5）It is above-mentioned（1）The lead accumulator, which is characterized in that above-mentioned two convex end is respectively possessed convex
It rises and is formed in the same side of above-mentioned pole plate.
（6）It is above-mentioned（1）The lead accumulator, which is characterized in that above-mentioned two convex end is respectively possessed convex
The not homonymy risen in above-mentioned pole plate is formed.
（7）It is above-mentioned（1）~（6）Any one of them lead accumulator, which is characterized in that the active material layer of above-mentioned pole plate
Density, that is, paste density is 4.15g/cm3~5.0g/cm3。
（8）It is above-mentioned（1）~（6）Any one of them lead accumulator, which is characterized in that above-mentioned pole plate is positive plate.
（9）It is above-mentioned（8）The lead accumulator, which is characterized in that density, that is, lead of the active material layer of above-mentioned positive plate
Cream density is 4.15g/cm3~4.45g/cm3。
（10）It is above-mentioned（1）~（6）Any one of them lead accumulator, which is characterized in that after the chemical conversion of above-mentioned lead accumulator
Above-mentioned electrolyte proportion be 1.33~1.35g/cm3。
（11）It is above-mentioned（1）The lead accumulator, which is characterized in that above-mentioned electrolyte is the sulfuric acid water comprising sulfuric acid and water
Solution.
（12）It is above-mentioned（1）Or（11）The lead accumulator, which is characterized in that complete comprising a small amount of energy in above-mentioned electrolyte
Additive of the fully dissolved in the electrolyte.
The effect of invention
According to the present invention, by making the thickness of the end of pole plate be more than pole at protrusion is formed in end plate designs
The thickness of the other parts of plate is greatly reduced so that the spacing between positive plate and negative plate moderately becomes larger
The possibility that short circuit occurs can store more electricity to improve cycle life, in the gap between positive plate and negative plate
Solution liquid and so that chemical reaction is more carried out, to improve capacity, and the oxygen that enables positive plate to be generated in latter stage of charging and
When be diffused into cathode, be conducive to the compound of oxygen, to improve charge efficiency.Meanwhile between positive plate and negative plate between
Away from being not excessive, therefore internal resistance is low.On this basis, by using highdensity partition board, the emptying aperture in partition board is therefore ensured that
Volume（Keep the volume of electrolyte）, while also using capillarity.Therefore obtained lead accumulator has simultaneously
Good cycle life, efficiency for charge-discharge, discharge capacity and high rate discharging characteristic（That is high rate discharging capacity）.
Description of the drawings
Fig. 1 is using high density AGM partition boards and tool there are two convex end and being somebody's turn to do in the lead accumulator of the present invention
The thickness of two ends is more than the schematic diagram of the electrode assembly of the pole plate of the thickness of middle section.
Fig. 2 is the schematic diagram of the 1st embodiment of the lead accumulator pole plate of the present invention.
Fig. 3 is the schematic diagram of the 2nd embodiment of the lead accumulator pole plate of the present invention.
Fig. 4 (a) is the stereoscopic schematic diagram of the plate of battery of the 1st embodiment of the present invention.Fig. 4 (b) is Fig. 4 (a) institutes
Show the front view of plate of battery.Fig. 4 (c) is the transverse sectional view of plate of battery shown in Fig. 4 (a).
Fig. 5（a）It is to indicate to manufacture the process chart of seine grid and pole plate using daraf(reciprocal of farad) processing is cut；Fig. 5（b）It is above-mentioned work
The close-up schematic view of sequence.
Specific implementation mode
Hereinafter, with reference to attached drawing, the present invention will be described.In the accompanying drawings, to simplify the explanation, to substantially the same
The constitutive requirements of function indicated with same reference mark.In addition, the present invention is not limited to the following embodiments and the accompanying drawings.
The present invention provides a kind of lead accumulator, and with multiple element cells, said units battery has electrode assembly, electrolysis
Liquid and element cell room, above-mentioned electrode assembly and above-mentioned electrolyte are accommodated in said units battery chamber, above-mentioned electrode assembly be by
Multi-disc positive plate and multi-disc negative plate are alternately arranged across partition board, and above-mentioned positive plate includes the anode collection with positive pole ear
Electric body and the positive electrode active material layer kept by the positive electrode collector, above-mentioned negative plate include the cathode current collection with negative lug
Body and the negative electrode active material layer kept by above-mentioned negative electrode collector, which is characterized in that aforementioned barriers are AGM partition boards（Glass fibers
Tie up partition board）, aforementioned barriers in the state that above-mentioned electrode assembly and above-mentioned electrolyte are accommodated in said units battery chamber it is close
Degree is 117~129g/dm3Range, at least one of above-mentioned positive plate and above-mentioned negative plate pole plate have following structures：On
The collector for stating pole plate is to draw in the net grid made of daraf(reciprocal of farad) cutting, and above-mentioned pole plate is by two raised convex ends and Jie
Flat middle section composition between the two ends, the thickness of above-mentioned end are more than the thickness of above-mentioned middle section, when setting
The thickness of fixed above-mentioned middle section is H2, the difference of the thickness of above-mentioned end and the thickness of above-mentioned middle section for H1 when, H1 and H2
Ratio H1/H2 be 3%~9%.The thickness of above-mentioned end refers to the maximum gauge of convex end.
The present invention by plate designs at end formed protrusion to make pole plate end thickness be more than pole plate its
The thickness of its part, so that the spacing between positive plate and negative plate moderately becomes larger, so as to provide while having
The plate of battery of good capacity, cycle life, charge efficiency.Specifically, it is possible, firstly, to increase reaction compartment, it can
More sulfuric acid are stored, reaction is made to carry out more permanent, so as to make capacity improve；Secondly as two ends of pole plate compared with
Thickness, the rib of the grid cut-off part of two ends farther out, are not easy to puncture partition board short circuit away from polar board surface, while two ends is strong
Spend it is larger, can to pole plate grow have inhibiting effect, so as to make cycle life improve；Furthermore it, can since two ends are thicker
There is a fixed gap in the middle section and partition board for making pole plate, are conducive to the conveying of oxygen in charging, reducing oxygen cannot be timely
Diffusion and oxygen loss and caused by charge efficiency reduce, so as to improve charge efficiency.When battery charges normal, one
The reaction for dividing electricity to be used for lead sulfate, decomposition of the part for water easily cause heap if oxygen cannot be transported to cathode in time
Product, consequence have at 2 points：First point is accumulation due to oxygen, can hinder the reaction of lead sulfate, influence formation efficiency；Second point
It is the accumulation due to oxygen, oxygen can be prevented from being diffused into cathode in time, the loss of oxygen is easily caused, cause dehydration.Above-mentioned two
Point can be such that charge efficiency reduces.The charge efficiency herein referred to refers to the complexity of lead sulfate reaction and the effect of circulating oxygen
Rate.
On the other hand, generally, it is considered that if lead accumulator will have good high rate discharging special in lead accumulator field
If property, it is desirable to the spacing in above-mentioned electrode assembly between adjacent positive plate and negative plate is smaller, but if if too small,
The precipitates such as dendrite are accessible to the rough sledding of short circuit occur to electrode, and can be to configuring in above-mentioned positive plate and cathode
Partition board between plate generates compression, also some influences can be generated on distribution of the electrolyte in partition board, specifically, upper
State spacing between positive plate and negative plate it is too small when, carrier ring can be overly compressed, and electrolyte can only keep small amount, to
Discharge capacity reduces.When spacing between above-mentioned positive plate and negative plate is larger, configuration above-mentioned positive plate and negative plate it
Between partition board can be recessed so that haptoreaction area reduce, discharge capacity reduce, high rate discharging characteristic reduce.
But as described above, the above-mentioned positive plate in the lead accumulator of the present invention and at least one of above-mentioned negative plate
Pole plate tool is there are two the thickness that the thickness of convex end and two ends is more than middle section, thus above-mentioned positive plate and negative
Spacing between pole plate becomes larger, as a result the raisings such as cycle life, it is likely that the high rate discharging capacity of lead accumulator is made to drop
It is low.In this regard, present inventor by the study found that by make partition board with higher Density and distribution positive plate and negative plate it
Between, enable to lead accumulator that there is good high rate discharging characteristic.For this purpose, using AGM partition boards and should be every in the present invention
The density of plate is set as 117~129g/dm3Range.This density range is brighter than the density of the partition board of existing lead accumulator
Powerful and influential height.Moreover, the upper limit of the density of partition board is set as 129g/dm in the present invention3Be because：The density of partition board further carries
If height, it is possible to cycle of the electrolyte in partition board is influenced, to influence the cycle life of battery.
The density of partition board in the present invention is by being compressed when the partition board forces together to form electrode assembly with pole plate
At 117~129g/dm3Such high density, the i.e. density of partition board are the pressure born in electrode assembly by it to determine
, but the density of partition board will not change substantially before and after Battery formation.Partition board density refers in the present invention
Density after chemical conversion.
The specific material of glass fibre separator used by above-mentioned AGM partition boards is not particularly limited, and can use public
Know or lead accumulator AGM partition boards available on the market, as long as the density of the AGM partition boards meets the requirement of the present invention.
Based on the setting of the above-mentioned structure and composition to pole plate and partition board, more low-gravity electrolysis may be used in the present invention
The proportion of liquid, electrolyte when fluid injection is preferably 1.24-1.26g/cm3, the above-mentioned electrolyte after the chemical conversion of above-mentioned lead accumulator
Proportion be preferably 1.33~1.35g/cm3.Lead accumulator in use for some time, by after the lead accumulator full charge its electricity
The proportion of solution liquid remains able to the rate of specific gravity for being restored to the above-mentioned electrolyte after above-mentioned lead accumulator chemical conversion, so in the present invention
The proportion of the electrolyte each means the above-mentioned electrolysis after being melted into above-mentioned lead accumulator in case of no particular description
The proportion of liquid.The electrolyte is preferably the aqueous sulfuric acid for including sulfuric acid and water, can also include a small amount of in above-mentioned electrolyte
The additive that can be dissolved completely in the electrolyte such as silica, sodium tetraborate, sodium sulphate, in above-mentioned electrolyte
The content of above-mentioned additive is, for example, 0.2~1.0 weight %.
It, can be in lead accumulator field generally, it is considered that when the proportion of aqueous sulfuric acid of electrolyte will be used as to improve
So that the chemical reaction between sulfuric acid and lead is more active, so that lead is not easy to be precipitated, the capacity of battery is improved.But
On the other hand, when the proportion of aqueous sulfuric acid of electrolyte will be used as to improve, the viscosity of sulfuric acid is excessive, affects electrolyte and exists
Cycle in partition board, the sulfuric acid being adsorbed in partition board are also easy to flow downward or precipitate downwards, and thus sulfuric acid is easy to happen point
Layer, to influence the cycle life of battery.
In the present invention, by using the electrolyte of aforementioned barriers and above-mentioned proportion, as a result, it has been found that, it can take into account well
Cycle life, efficiency for charge-discharge, discharge capacity and the high rate discharging capacity of battery.
The lead accumulator of the present invention is preferably valve-regulated lead-acid battery.
Fig. 1 is using high density AGM partition boards and tool there are two convex end and being somebody's turn to do in the lead accumulator of the present invention
The thickness of two ends is more than the schematic diagram of the electrode assembly of the pole plate of the thickness of middle section.Shown in FIG. 1 is at both ends
It is formed with the negative plate of protrusion in portion, but as described later, is actually preferably formed on the both ends of positive plate in the present invention
Have protrusion, only because in electrode assembly shown in Fig. 1 positive plate by partition board packet inside, it is not easy to see, thus with
Expose negative plate outside to schematically show, forms the state of protrusion on the both ends of negative plate and in positive plate
The state that protrusion is formed on both ends is identical.
Fig. 2 is the schematic diagram of the 1st embodiment of the lead accumulator pole plate of the present invention.As shown in Figure 2, it sets above-mentioned
The thickness of the middle section of pole plate is H2, and the difference of the thickness of the end of above-mentioned pole plate and the thickness of middle section is H1, above-mentioned pole
The width of the end of plate is H3, and the overall width of above-mentioned pole plate is H4.
In Fig. 2, respectively possessed protrusion is formed in the same side of above-mentioned pole plate for above-mentioned two convex end,
It is preferred that being formed by being cut off using rolling cut mode in aftermentioned cut off operation.
Fig. 3 is the schematic diagram of the 2nd embodiment of the lead accumulator pole plate of the present invention.As shown in Figure 3, two protrusions
Shape end respectively possessed by protrusion shape and Fig. 1 shown in raised shape it is different, and two convex ends
Portion respectively possessed by protrusion be to be formed in the not homonymy of above-mentioned pole plate, preferably by aftermentioned cut off operation using punching
Pressure mode is cut off to be formed.
Fig. 4 (a) is the stereogram of the lead accumulator pole plate of the 1st embodiment of the present invention.Fig. 4 (b) is Fig. 4 (a) institutes
Show the front view of plate of battery.Fig. 4 (c) is the transverse sectional view of plate of battery shown in Fig. 4 (a).
As shown in Fig. 4 (a), (b), (c), above-mentioned pole plate is by two raised convex ends and between the two ends
Flat middle section composition between portion, the thickness of above-mentioned end are more than the thickness of above-mentioned middle section, two of which convex
Protrusion possessed by end can be formed by collector and/or the active material layer kept by the collector, but from technique
From the aspect of simplified, of low cost, preferably above-mentioned protrusion is formed only by active material layer.
The thickness of above-mentioned protrusion is exactly the difference H1 of above-mentioned thickness, the H1 to reach in certain range could partition board with
Gap appropriate is generated between pole plate, to advantageously improve charge efficiency, is prevented short circuit, is improved cycle life and capacity.But
It is when H1 is excessive, to lead to the excessive protrusion of the active material of two ends, increase short-circuit risks instead, while pole can be caused
Gap between plate is excessive, and battery is caused to accelerate dehydration, generates the opposite effect.And when H1 is too small, two ends and middle part
Point thickness difference unobvious, charge efficiency cannot be effectively improved, and inhibit the effect of pole plate growth also unobvious.Therefore,
From the aspect of above-mentioned two, the ratio H1/H2 of preferably H1 and H2 are 3%~9%.Moreover, ratio H1/H2 be 3%~9% when with
Ratio H1/H2 is compared when being 0, and battery capacity can promote about 10%~20%.From the aspect of playing more preferably effect, more
Preferred ratio H1/H2 is 4%~8%.
In addition, the shape of above-mentioned protrusion is not particularly limited, as long as convex end can be formed, such as can
To be dome-shaped, mountain peak shape etc..The thickness of above-mentioned protrusion refers to the maximum gauge at convex apexes.
The width of above-mentioned protrusion is exactly the width H3 of the end of above-mentioned pole plate, when the H3 is excessive, easily causes production difficulty,
And it is likely to result in that the gap between partition board and pole plate is excessive, it thus cannot effectively inhibit the active material in electrode assembly
Expansion, prevent falling off for active material, so as to cause battery cycle life be deteriorated.When the H3 is too small, pole plate can be caused
Two end stresses it is too low, effectively pole plate cannot be inhibited to grow, it is unstable so as to cause the capacity of battery, and cycle life
It is deteriorated.Therefore, from the aspect of above-mentioned two, preferred ratio H3/H4 is 5%~25%, more preferably 10%~20%.
Above-mentioned pole plate can be positive plate, can also be negative plate, but preferably positive plate.This is because in lead electric power storage
Chi Zhong, anode generate gas；The grid of positive plate is easy growth, is easy to happen short circuit；Moreover, battery capacity is controlled by anode,
So compared with negative plate, when forming above-mentioned protrusion on positive plate, its effect can be more played.
Above-mentioned two convex end respectively possessed by protrusion can be formed in the same side of above-mentioned pole plate, can also be
The not homonymy of above-mentioned pole plate is formed, but preferably the former.This is because the state that two above-mentioned protrusions are formed in the same side of pole plate
Protrusion more above-mentioned than two generated gap in the state of the formation of the not homonymy of pole plate in generated gap will be big when lower, can be with
More sulfuric acid are stored, the capacity of battery is enable to be promoted, and the pole plate of this state can improve the charge efficiency of battery,
Simultaneously also have significant inhibition to battery life premature failure, to gained electrode assembly and it uses the electrode assemblies
The impact of performance of battery is more preferable.
Above-mentioned protrusion can be designed by the process conditions in the manufacturing method to above-mentioned pole plate to be formed, can also
It is designed by the composition of active material layer to be formed.
In the manufacturing method of pole plate shown in main step such as Fig. 5 (a) and Fig. 5 (b) comprising：（1）Cut drawing process：Make
Punching press is carried out to the. g., lead tape 27 made of lead or metal repeatedly with reciprocating punching mold, is formed in the length direction along. g., lead tape
While multiple slits, which is unfolded along the direction vertical with. g., lead tape surface, is interlocked by a plurality of ruling to be formed to have
The net slice of the grid 25 of composition；（2）Trimming：Shaping is carried out to above-mentioned net slice using a pair of rolls of shaping mould, is obtained
To seine grid；（3）Lead plaster filling work procedure：It is filled to grid 25 as work in the length direction of above-mentioned seine grid upper edge grid
The lead plaster 24a of property substance and form stereotype 2；（4）Cut off operation：The seine grid that will be filled with above-mentioned lead plaster 24a is cut to tool
There is the pole plate of lug 9, that is, obtains the pole plate 2a not being melted into.
Then, the pole plate 2a not being melted into is cured, dried and is melted into obtain pole plate.Chemical conversion can not be changed using
At positive plate and negative plate electrode assembly is made and progress after being assembled in the electric slot of lead accumulator, electrode assembly can also be made
Carry out before, but preferably the former.
It should be noted that above-mentioned all " thickness " each mean be made after finished battery and the finished battery be not used when
Thickness possessed by various pieces.
Respectively possessed protrusion is to carry out above-mentioned cut off operation for above-mentioned two convex according to the present invention end
While formed, you can formed with being designed by the process conditions to above-mentioned cut off operation.Specifically, above-mentioned convex
Can be by cut off being formed using rolling cut mode in above-mentioned cut off operation, it can also be by above-mentioned cut off operation
It is middle to be cut off using impact style to be formed.About the tool for forming above-mentioned protrusion by using rolling cut mode or impact style
Body technology and advantage and disadvantage, it is identical with the content described in Chinese patent application CN102593430A, so herein by this article
The related content offered is incorporated by reference.
In the present invention, rolling cut mode is more preferably used among both rolling cut mode and impact style.
In the present invention, in order to be maintained at the protrusion formed on two ends of pole plate when pole plate cut-out, can pass through
The intensity of the active material of two ends is improved to realize, you can be realized by improving the density of active material, in this way,
After pole plate cut-out, the thicker state in two ends can maintain.From the aspect of from this, density, that is, lead of above-mentioned active material layer
Cream density is preferably 4.15g/cm3~5.0g/cm3, more preferably 4.25g/cm3~4.8g/cm3.The paste density of range in this way
It is higher than common paste density.But for positive plate and negative plate the two, their own lead plaster composition is different
, the paste density for being used to form above-mentioned protrusion is also different.That is, due to the lead of both positive plate and negative plate
Cream composition is different, so even if can be obtained not if after the identical cut-out using identical cutting-off method of the paste density of both
With the protrusion of degree.Moreover, negative plate lead plaster is different according to the characteristic required by reality and needs that its constituent ratio is made to send out
Raw large change, if its constituent ratio is different, can also obtain different degrees of so even if its paste density is identical
Protrusion.It is therefore preferable that above-mentioned pole plate is positive plate, the paste density of the positive plate is preferably 4.15g/cm3~4.45g/cm3, more
Preferably 4.25g/cm3~4.35g/cm3。
But under identical paste density, the tune such as knife edge angular to Cutting process and cutting off tool can also be passed through
It is whole come realize the shape to above-mentioned protrusion, size and height control, the content of this respect may refer to Chinese patent application
CN102593430A。
In the lead accumulator of the present invention other than the structure and composition of above-mentioned component, the structure and composition of other components can
With using it is well known in the prior art those, be not particularly limited.
For example, above-mentioned lead accumulator can be assembled by following methods.By the above-mentioned positive plate of multi-disc and multi-disc
Above-mentioned negative plate is alternately overlapped across diaphragm structure body respectively, to obtain electrode assembly.Then, by homopolarity in single electrode assembly
Property positive pole ear using metallic plates such as lead, aluminium or copper materials carry out melting welding or cast welding to weld together acquisition positive bus,
The negative lug of same polarity in single electrode assembly is subjected to melting welding or cast welding to be welded on one using metallic plates such as lead, aluminium or copper materials
Track down and recover to obtain negative bus-bar.Each electrode assembly is accommodated in the multiple element cell rooms separated by spaced walls in electric slot respectively
In.By passing through lead, aluminium by the negative bus-bar of electrode assembly and with the positive bus of the electrode assembly of adjacent-cell battery
Or the metallic plates such as copper material welding, then the negative bus-bar of the electrode assembly of above-mentioned adjacent-cell battery again with next adjacent cells
The positive bus of the electrode assembly of battery is welded by metallic plates such as lead, aluminium or copper materials, is sequentially connected in series down in this way, just will
Each electrode assembly is connected in series with, that is, multiple element cells are together in series, the positive bus at final both ends and
Negative bus-bar respectively becomes positive terminal and negative pole end.Above-mentioned positive terminal is connect with positive terminal, above-mentioned negative pole end and negative pole end
Son connection.
Then, battery cover is installed in the opening of electric slot.Then, liquid inlet set from battery cover is to each
Electrolyte is poured into element cell, is then melted into electric slot, and the proportion of electrolyte when fluid injection is preferably 1.24-
1.26g/cm3, the proportion of the above-mentioned electrolyte after the chemical conversion of above-mentioned lead accumulator is preferably 1.33~1.35g/cm3, above-mentioned electrolysis
The additives such as silica can also be contained in liquid.It, will be with the gas and pressure for generating inside battery after chemical conversion
The valve of discharge is fixed in liquid inlet, to obtain lead accumulator.
Hereinafter, the present invention is specifically explained based on embodiment, but these embodiments are the illustration of the present invention, this
Invention is not limited to these examples.
（Embodiment C）
(1) manufacture of positive plate
With about 100：12：14 weight ratio carries out raw material lead powder (mixture of lead and lead oxide), water and dilute sulfuric acid
It mediates, to obtain anode diachylon as a positive electrode active material.
It on the other hand, will be by closing comprising the Pb containing about 0.07 mass %Ca and about 1.3 mass %Sn by acquisition of casting
The. g., lead tape of gold is squeezed into 1.3 millimeters thicks.As shown in Fig. 5 (a) and Fig. 5 (b), first, carries out cutting drawing process, use reciprocating punching
Mold carries out punching press to. g., lead tape 27 repeatedly, while the length direction along. g., lead tape forms multiple slits, by slit edge and lead
The vertical direction expansion of belt surface, to form the net slice with the grid 25 constituted that interlocked by a plurality of ruling.Then, it utilizes
A pair of rolls of shaping mould carries out shaping to above-mentioned net slice, obtains seine grid.Then, in the above-mentioned seine grid upper edge lattice
The length direction of grid fills lead plaster 24a as a positive electrode active material to grid 25 and forms stereotype 2.Then, stereotype 2 is used
Rolling cut mode is cut to the positive plate with positive pole ear 9, and protrusion is formd on two ends of the same side of the positive plate.
The positive plate that such cut-out is formed is cured, dried and is melted into, just obtains and positive active material is kept by positive plate grid
Positive plate made of layer.Above-mentioned chemical conversion can carry out before being assembled into electrode assembly, can also be assembled into electrode assembly and assemble
Later progress in the electric slot of lead accumulator.
The parameter of each inscape of gained positive plate is worth referring to shown in aftermentioned table 1.The wherein thickness of gained protrusion
It is 3% to spend ratio H1/H2, and width ratio H3/H4 is 15%, and the density of gained lead plaster is 4.3g/cm3。
(2) manufacture of negative plate
With about 100：10：4 weight ratio mediates raw material lead powder, water, dilute sulfuric acid, lives as cathode to obtain
The cathode lead plaster of property substance.With the Pb alloy raw materials containing about 0.07 mass %Ca and about 0.25 mass %Sn by with above-mentioned anode
The negative plate that similar reciprocating of plate cuts daraf(reciprocal of farad) to be made as negative electrode collector draws in the net grid.It is negative with the filling of above-mentioned cathode lead plaster
Then the seine grid of pole plate will be filled with the seine grid of above-mentioned lead plaster（That is stereotype）It is cut to negative using rolling cut mode
The negative plate of pole lug, to obtain the negative plate not being melted into.By the way that the negative plate not being melted into is cured, dried and is changed
At just acquisition keeps negative plate made of negative electrode active material layer by negative plate grid.Above-mentioned chemical conversion can be assembled into pole plate
It is carried out before group, electrode assembly can also be assembled into and be assembled to the later progress in the electric slot of lead accumulator.
The parameter of each inscape of gained negative plate is worth referring to shown in aftermentioned table 1.Wherein, gained negative plate
Surface is flat, and thickness is uniform, and protrusion is not formed in the end of the negative plate, so the thickness ratio H1/H2 of end is 0, it is wide
It is 0 to spend ratio H3/H4.The paste density of gained negative plate is 4.8g/cm3。
(3) manufacture of lead accumulator
By the above-mentioned positive plate of multi-disc and the above-mentioned negative plate of multi-disc respectively across density be 123g/dm3AGM partition boards alternately
Overlapping, to obtain electrode assembly.
The positive pole ear of same polarity in the single electrode assembly of above-mentioned acquisition is connected to together respectively and obtains positive bus,
The negative lug of same polarity is welded together and obtains negative bus-bar.By 6 electrode assemblies be accommodated in respectively in electric slot by
In 6 element cell rooms that spaced walls separate.By by the anode of the negative bus-bar of an electrode assembly and adjacent electrode assembly
Bus-bar welds, and to be connected in series with two adjacent electrode assemblies, is thus successively connected in series with each electrode assembly,
Exactly each unit battery is together in series.
In above-mentioned multiple electrode assemblies being connected in series with, an electrode assembly in two electrode assemblies at final both ends
Positive bus connect with positive terminal, the negative bus-bar of another electrode assembly is connect with negative terminal.Then, by battery
Lid is installed in the opening of electric slot.Then, from liquid inlet set on battery cover concentration is poured into each element cell
For 1.242g/cm3Sulfuric acid as electrolyte, and be melted into electric slot.The ratio of above-mentioned electrolyte after above-mentioned chemical conversion
Weight is 1.34g/cm3.After chemical conversion, liquid will be fixed on the valve for the gas and pressure venting that generate inside battery
In entrance, to obtain lead accumulator, the capacity of the battery is 100Ah, rated voltage 12V.
（4）The performance of lead accumulator is evaluated
（A）The cycle life characteristics of the lead accumulator of above-mentioned gained are measured, the result of gained is shown in aftermentioned table 1
In.
The assay method of cycle life is as follows：
It is 25 ± 2 in environment temperature after the measurement for carrying out voltage, internal resistance and weight to manufacturing the new product battery within 30 days
After discharging into 10.5V terminations under the conditions of DEG C with 25A amperes, full charge is carried out to the battery, charge condition is：With the perseverance of 14.7V
Constant voltage charges, and maximum charging current is 40A or less.After such a charge step, followed as the 1st time
Ring.It is discharged and is charged by above-mentioned condition again, carried out repeatedly, until the discharge capacity of battery is reduced to the 1st cycle
Discharge capacity 50% when terminate to test, calculate carried out charge and discharge cycles recurring number, using the recurring number as recycle the longevity
Life.
（B）The capacity (electrolyte reaction effect) of the lead accumulator of above-mentioned gained is measured, the result of gained is shown in
In aftermentioned table 1.
Electrolyte reaction effect is embodied in the discharge capacity of battery, can be characterized by measuring the discharge capacity of battery
The quality of electrolyte reaction effect.The assay method of the capacity of battery is as follows：
It is 25 ± 2 in environment temperature after the measurement for carrying out voltage, internal resistance and weight to manufacturing the new product battery within 30 days
After discharging into 10.5V terminations under the conditions of DEG C with 25A amperes, discharge time is recorded（Unit is hour, is abbreviated as h）, thus calculate
Go out the capacity of battery.
（C）The charge efficiency (charging time) of the lead accumulator of above-mentioned gained is measured, after the result of gained is shown in
In the table 1 stated.
The assay method of charge efficiency (charging time) is as follows.
It is charged with the constant voltage of 13.7V at 25 DEG C, when charging current reaches 0.003 times of rated capacity or less
When, i.e., judgement charging fill with, to terminate to charge, using since charging to charging terminate time as the charging time
（Unit is hour, is abbreviated as h）.In general, the charge efficiency of charging time shorter one is more preferable.
（D）The high rate discharging characteristic of the lead accumulator of above-mentioned gained is measured, the result of gained is shown in aftermentioned table 1
In.
The index of high rate discharging characteristic is exactly high rate discharging capacity.The assay method of high rate discharging capacity is as follows：
It is 25 ± 2 in environment temperature after the measurement for carrying out voltage, internal resistance and weight to manufacturing the new product battery within 30 days
With 300 amperes under the conditions of DEG C（3CA）9.6V terminations are discharged into, discharge time is recorded（Unit is hour, is abbreviated as h）, thus count
Calculate the high rate discharging capacity of battery.
（Embodiment D~I）
In embodiment D~I, in addition to making the thickness ratio H1/H2 of above-mentioned protrusion be respectively in the range of 4%~9%
It is other that electrode assembly and lead accumulator is made according to setting condition identical with embodiment C except some numerical value.
（Comparative examples A）
In Comparative examples A, it is 4.2g/cm to make the paste density of positive plate3, positive plate and negative plate do not form above-mentioned
Protrusion, i.e. ratio H1/H2 and H3/H4 are 0, in addition to this, are made according to setting identical with embodiment C and process
Obtain electrode assembly and lead accumulator.
In the Comparative examples A, the paste density of positive plate is set to the 4.3g/cm than embodiment C3Low is in order not to be formed
Protrusion.But the change of the technique by way of cut-out, can also realize with the paste density of positive plate for 4.3g/cm3's
In the case of still do not form protrusion, only productivity can be relatively low in this case.
（Comparative example B, J）
In comparative example B, J, other than making the thickness ratio H1/H2 of above-mentioned protrusion be respectively 1% and 10%, Qi Tajun
Electrode assembly and lead accumulator is made according to setting condition identical with embodiment C.
As shown in table 1, the result obtained by embodiment C~I it is found that when above-mentioned protrusion thickness ratio H1/H2 for 3%~
When 9% range, obtained lead accumulator can have simultaneously good cycle life, efficiency for charge-discharge, discharge capacity and
High rate discharging capacity.
But result obtained by Comparative examples A, B and the J it is found that when the thickness ratio H1/H2 of above-mentioned protrusion be less than 3% or
When more than 9%, effectively good cycle life, efficiency for charge-discharge, discharge capacity and high rate discharging capacity cannot be realized simultaneously.
It is believed that itself the reason is as follows that.When the thickness ratio H1/H2 of above-mentioned protrusion is less than 3%, the spacing between positive plate and negative plate
Small, positive plate is in close proximity with negative plate, is as a result possible to generate at least one of following situations：Short circuit occurs；Oxygen is not
Easily absorbed by cathode；Insufficient electrolyte between positive plate and negative plate.On the other hand, as the thickness ratio H1/ of above-mentioned protrusion
When H2 is higher than 10%, the spacing between positive plate and negative plate is excessive, i.e., positive plate is excessive at a distance from negative plate, active material
It is excessively prominent, it is as a result possible to generate at least one of following situations：Short circuit occurs；Water loss amount increases in battery；Electricity
Liquid internal resistance is solved to increase.
（Embodiment L~O）
In embodiment L~O, in addition to making the density of above-mentioned AGM partition boards in 117~129g/dm3Between change with
Outside, other that electrode assembly and lead accumulator is made according to setting condition identical with embodiment F.
（Comparative example K, P）
It is respectively 115g/dm in addition to making the density of above-mentioned AGM partition boards in comparative example K, P3And 131g/dm3Except, it is other
Electrode assembly and lead accumulator is made according to setting condition identical with embodiment F.
As shown in table 1, the result obtained by embodiment L~O is it is found that when the density of above-mentioned AGM partition boards is 117~129g/
dm3Range when, obtained lead accumulator can have simultaneously good cycle life, efficiency for charge-discharge, discharge capacity and
High rate discharging capacity.
But the result obtained by comparative example K, P is it is found that the density when above-mentioned AGM partition boards is less than 117g/dm3Or it is more than
129g/dm3When, it cannot effectively realize that good cycle life, efficiency for charge-discharge, discharge capacity and high rate discharging hold simultaneously
Amount.It is believed that itself the reason is as follows that.When the density of above-mentioned AGM partition boards is less than 117g/dm3When, the pore in partition board is excessively coarse, hair
Tubule phenomenon does not work.On the other hand, when the density of above-mentioned AGM partition boards is more than 129g/dm3When, the pore in partition board is very few,
The insufficient electrolyte for participating in reaction, to hyporeactive.
（Embodiment R~U）
In embodiment R~U, the proportion in addition to making above-mentioned electrolyte（In terms of the value after the chemical conversion of above-mentioned lead accumulator）
1.33~1.35g/cm3Between change other than, it is other that electrode assembly is made according to setting condition identical with embodiment F
And lead accumulator.
（Comparative example Q, V）
In comparative example Q, V, the proportion in addition to making above-mentioned electrolyte（In terms of the value after the chemical conversion of above-mentioned lead accumulator）For
1.32g/cm3And 1.36g/cm3Except, it is other that electrode assembly and lead electric power storage is made according to setting condition identical with embodiment F
Pond.
As shown in table 1, the result obtained by embodiment R~U it is found that when above-mentioned electrolyte proportion（With above-mentioned lead electric power storage
Value meter after the chemical conversion of pond）For 1.33~1.35g/cm3Range when, obtained lead accumulator can have good follow simultaneously
Ring service life, efficiency for charge-discharge, discharge capacity and high rate discharging capacity.
But result obtained by comparative example Q, V it is found that when above-mentioned electrolyte proportion（It is melted into above-mentioned lead accumulator
Value meter afterwards）Less than 1.33g/cm3Or more than 1.35g/cm3When, effectively it cannot realize good cycle life, charge and discharge simultaneously
Electrical efficiency, discharge capacity and high rate discharging capacity.It is believed that itself the reason is as follows that.When the proportion of above-mentioned electrolyte（It is stored with above-mentioned lead
Value meter after Battery formation）Less than 1.33g/cm3When, the sulfate for participating in reaction is insufficient, therefore hyporeactive；Moreover, electric discharge
When electrolyte close to neutrality, be next easy to happen dendritic growth when charging.On the other hand, when the proportion of above-mentioned electrolyte
（In terms of the value after the chemical conversion of above-mentioned lead accumulator）More than 1.35g/cm3When, grid is easy to be corroded, and ion moving resistance
Rise.
（Comparative example W）
In comparative example W, the density of above-mentioned AGM partition boards is 114g/dm3, make the proportion of above-mentioned electrolyte（It is stored with above-mentioned lead
Value meter after Battery formation）For 1.31g/cm3, in addition to this, other to be made according to setting condition identical with embodiment F
Electrode assembly and lead accumulator.
In comparative example W, the density of above-mentioned AGM partition boards and the proportion of above-mentioned electrolyte not within the scope of the present invention,
It is and the comparable example of technology described in the Chinese patent application CN102593430A of the prior art as the present invention
Son.
As shown in table 1, compared with embodiment F etc., the comprehensive performance of the battery of comparative example W, cannot significantly lower than the present invention
Realize good cycle life, efficiency for charge-discharge, discharge capacity and high rate discharging capacity simultaneously.
（Embodiment X）
In embodiment X, protrusion is formed at the both ends of negative plate, the thickness ratio H1/H2 of above-mentioned protrusion is 6%, width
Ratio H3/H4 is 15%, and the surface of positive plate is flat, and thickness is uniform, and protrusion is not formed in the end of the positive plate, i.e., should
The thickness ratio H1/H2 of the end of positive plate be 0, width ratio H3/H4 be 0, in addition to this, it is other according to embodiment F
Electrode assembly and lead accumulator is made in identical setting condition.
As shown in table 1, compared with embodiment F, the cycle life characteristics of the battery of embodiment X have a little reduction, it is believed that
It is because during repeated charge, the deformation of negative plate grid and growth ability are not so good as positive plate grid.
（Embodiment Y）
In embodiment Y, protrusion, the thickness ratio of above-mentioned protrusion are all formed in positive plate and the respective both ends of negative plate
H1/H2 is 6%, and width ratio H3/H4 is 15%, in addition to this, other to be made according to setting condition identical with embodiment F
Electrode assembly and lead accumulator.
As shown in table 1, compared with embodiment F, the charge-discharge characteristic of the battery of embodiment Y（Discharging efficiency, discharge capacity and
High rate discharging capacity）There is a little reduction, it is believed that it is all to be formed with protrusion because of on positive plate and the respective both ends of negative plate,
To which the spacing between positive plate and negative plate is excessive, resistance is caused to increase.
Table 1
Industrial applicibility
The present invention provides cycle life, efficiency for charge-discharge, discharge capacity and all excellent lead electric power storages of high rate discharging capacity
Pond, the lead accumulator can not only be used as starting power supply, mains lighting supply and the stand-by power supply of vehicle, can also act as independent charge and discharge
Electric equipment power supply such as electric vehicle, electri forklift, electric pallet truck, electric motor coach, electric bicycle, battery-operated motor cycle, electricity
The electrical source of power of dynamic scooter, small-sized electric vehicle using motor, golf cart, electric locomotive etc., the storage of the electric energy such as solar energy battery
Cryopreservation device.
Claims (10)
1. a kind of lead accumulator, with multiple element cells, the element cell has electrode assembly, electrolyte and unit electricity
Pond room, the electrode assembly and the electrolyte are accommodated in the element cell room, the electrode assembly be by multi-disc positive plate and
Multi-disc negative plate is alternately arranged across partition board, the positive plate include with positive pole ear positive electrode collector and by this just
The positive electrode active material layer that electrode current collector is kept, the negative plate include to have the negative electrode collector of negative lug and by described negative
The negative electrode active material layer that electrode current collector is kept, which is characterized in that the partition board is AGM partition boards, in the electrode assembly and described
Electrolyte be accommodated in the element cell room in the state of the partition board density be 117~129g/dm3Range, institute
Stating at least one of positive plate and the negative plate pole plate has following structures：The collector of the pole plate is by cutting daraf(reciprocal of farad) system
At seine grid, the pole plate is by two raised convex ends and the flat centre between the two ends
Part forms, and the thickness of the end is more than the thickness of the middle section, when setting the thickness of the middle section as H2, institute
When the difference for stating the thickness of end and the thickness of the middle section is H1, the ratio H1/H2 of H1 and H2 are 3%~9%；Described
The proportion of the electrolyte after lead accumulator chemical conversion is 1.33~1.35g/cm3；It is complete comprising a small amount of energy in the electrolyte
Additive of the fully dissolved in the electrolyte.
2. lead accumulator according to claim 1, which is characterized in that the ratio H1/H2 is 4%~8%.
3. lead accumulator according to claim 1, which is characterized in that the width of the end is the overall width of the pole plate
5%~25%.
4. lead accumulator according to claim 3, which is characterized in that the width of the end is the overall width of the pole plate
10%~20%.
5. lead accumulator according to claim 1, which is characterized in that described two convex ends are respectively possessed convex
It rises and is formed in the same side of the pole plate.
6. lead accumulator according to claim 1, which is characterized in that described two convex ends are respectively possessed convex
The not homonymy risen in the pole plate is formed.
7. according to claim 1~6 any one of them lead accumulator, which is characterized in that the active material layer of the pole plate
Density, that is, paste density is 4.15g/cm3~5.0g/cm3。
8. according to claim 1~6 any one of them lead accumulator, which is characterized in that the pole plate is positive plate.
9. lead accumulator according to claim 8, which is characterized in that density, that is, lead of the active material layer of the positive plate
Cream density is 4.15g/cm3~4.45g/cm3。
10. lead accumulator according to claim 1, which is characterized in that the electrolyte is the sulfuric acid comprising sulfuric acid and water
Aqueous solution.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462517.8A CN104518201B (en) | 2013-09-30 | 2013-09-30 | Lead accumulator |
| PCT/JP2014/004687 WO2015045313A1 (en) | 2013-09-30 | 2014-09-11 | Lead acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462517.8A CN104518201B (en) | 2013-09-30 | 2013-09-30 | Lead accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104518201A CN104518201A (en) | 2015-04-15 |
| CN104518201B true CN104518201B (en) | 2018-10-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310462517.8A Expired - Fee Related CN104518201B (en) | 2013-09-30 | 2013-09-30 | Lead accumulator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104518201B (en) |
| WO (1) | WO2015045313A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY196259A (en) * | 2017-10-31 | 2023-03-24 | Gs Yuasa Int Ltd | Lead-Acid Battery for Idling Stop |
| CN108550778A (en) * | 2018-05-29 | 2018-09-18 | 天津锦泰勤业精密电子有限公司 | Power battery plate, cover plate of power battery component, power battery |
| CN109659558A (en) * | 2018-11-16 | 2019-04-19 | 佛山市科特电池有限公司 | A kind of electric road vehicle lead storage battery green plate lead paste formula |
| CN112151885B (en) * | 2020-08-21 | 2023-12-22 | 安徽理士电源技术有限公司 | Method for assembling long-service-life silicon-based bipolar lead storage battery |
| CN114628799B (en) * | 2022-02-24 | 2023-08-04 | 天能电池集团股份有限公司 | Repair method and application of external formation positive plate |
| CN117175025A (en) * | 2023-09-05 | 2023-12-05 | 浙江天能电池江苏新能源有限公司 | Electrode group and manufacturing method thereof |
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| US5206100A (en) * | 1990-08-24 | 1993-04-27 | Nippon Sheet Glass Co., Ltd. | Separator and sealed lead acid battery |
| US5281498A (en) * | 1991-05-23 | 1994-01-25 | Nippon Sheet Glass Co., Ltd. | Sheet-like separator and valve regulated lead acid battery |
| CN102593430A (en) * | 2012-02-29 | 2012-07-18 | 松下蓄电池(沈阳)有限公司 | Polar plate for battery, manufacturing method of polar plate, polar plate group with polar plates and lead storage battery |
| CN203491336U (en) * | 2013-09-30 | 2014-03-19 | 松下蓄电池(沈阳)有限公司 | Lead storage battery |
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| JPS60119073A (en) * | 1983-11-30 | 1985-06-26 | Nippon Sheet Glass Co Ltd | Separator for storage battery |
| JP3060694B2 (en) * | 1991-05-23 | 2000-07-10 | 日本板硝子株式会社 | Sheet separator and sealed lead-acid battery |
| JPH07201310A (en) * | 1993-12-28 | 1995-08-04 | Nippon Muki Co Ltd | Separator for sealed lead-acid battery and its manufacture and sealed lead-acid battery |
| JP2000133301A (en) * | 1998-10-28 | 2000-05-12 | Matsushita Electric Ind Co Ltd | Closed lead acid battery |
| JP2002075430A (en) * | 2000-08-24 | 2002-03-15 | Matsushita Electric Ind Co Ltd | Lead storage battery |
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2013
- 2013-09-30 CN CN201310462517.8A patent/CN104518201B/en not_active Expired - Fee Related
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2014
- 2014-09-11 WO PCT/JP2014/004687 patent/WO2015045313A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5206100A (en) * | 1990-08-24 | 1993-04-27 | Nippon Sheet Glass Co., Ltd. | Separator and sealed lead acid battery |
| US5281498A (en) * | 1991-05-23 | 1994-01-25 | Nippon Sheet Glass Co., Ltd. | Sheet-like separator and valve regulated lead acid battery |
| CN102593430A (en) * | 2012-02-29 | 2012-07-18 | 松下蓄电池(沈阳)有限公司 | Polar plate for battery, manufacturing method of polar plate, polar plate group with polar plates and lead storage battery |
| CN203491336U (en) * | 2013-09-30 | 2014-03-19 | 松下蓄电池(沈阳)有限公司 | Lead storage battery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015045313A1 (en) | 2015-04-02 |
| CN104518201A (en) | 2015-04-15 |
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