CN200947445Y - Grid for lead-acid battery - Google Patents

Grid for lead-acid battery Download PDF

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Publication number
CN200947445Y
CN200947445Y CNU2006201276679U CN200620127667U CN200947445Y CN 200947445 Y CN200947445 Y CN 200947445Y CN U2006201276679 U CNU2006201276679 U CN U2006201276679U CN 200620127667 U CN200620127667 U CN 200620127667U CN 200947445 Y CN200947445 Y CN 200947445Y
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Prior art keywords
rib
grid
vertical rib
lead
storage battery
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Expired - Fee Related
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CNU2006201276679U
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Chinese (zh)
Inventor
王世国
穆锦峰
韩巧丽
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SHANXI TONGYONG GROUP CO Ltd
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SHANXI TONGYONG GROUP CO Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model relates to a lead-acid storage battery field, in particular to a lead-acid storage battery bar. The utility model solves the problems of the existing traditional lead-acid storage battery bar (electrode plate) which impacts the storage battery performances of large current discharge and charge acceptance ability, so as to limit the integrate performance improvement of the lead-acid storage battery. The utility model comprises a frame, a transverse rib arranged in the frame, and a vertical rib intersected with the transverse rib (comprises a vertical rib, a radicalized rib, an inclined rib, etc.), the space between the transverse ribs is 5 to 20mm, the number ratio of the vertical rib to the transverse rib in the frame is 2.5 to 1.0:1. The utility model breaches the original bar internal structure design without change of the appearance and the dimension of the lead-acid storage battery, the number of the vertical rib is more than that of the transverse rib in the bar, the total cross-section of the vertical rib is larger than that of the transverse rib, the appearance quality of pole board and the integrated use performance of the battery are improved.

Description

The lead acid accumulator grid
Technical field
The utility model relates to the lead acid accumulator field, specifically is the lead acid accumulator grid.
Background technology
The capacity of lead acid accumulator and life-span are determined by design, manufacturing process and battery operated condition, the environment of grid (grid through coated plate, solidify, change into, be called pole plate after the drying) to a great extent.In grid design, good grid design can make on the pole plate CURRENT DISTRIBUTION more even, reduces the voltage drop when discharging and recharging, and battery performance is increased.
The structural design of lead acid accumulator plate grid is according to carrying out under overall cell performance requirement and the residing working environment.As under the known housing situation,, also can design according to the rated capacity of the internal volume size of cell housing, battery with to the multiple factors such as useful life of battery operated environmental suitability and requirement thereof.At present, lead acid accumulator all can satisfy the following factors requirement with the design of grid:
1, the overall dimension of grid should be fit to battery container internal volume dimensional requirement, should be able to satisfy the plate of battery capacity, and the requirement in useful life.
2, the maximum that should be able to carry of grid is coated with the lowest high-current value that cream amount and pole plate can be exported.
3, the grid internal structure should help the discharge needs of the maximum current of pole plate (or battery), helps lead plaster combines adhesive force with grid needs.
4, grid should be easy to moulding, can satisfy the grid rate requirement that manufactures a finished product.
The needs that 5, should adapt to the process operation level of present production.
The structure of the lead acid accumulator plate grid of present large and small different purposes is formed (seeing shown in Figure 1) and is included horizontal type rib and the vertical rib that grid frame (if draw in the net grid two frames are up and down only arranged), plate ear, plate pin and frame inside are provided with; Be called horizontal type rib (abbreviation horizontal bar) with plate ear orientation rib in vertical direction, the rib consistent with the orientation of plate ear is called vertical rib.The form of vertical rib has a lot: the vertical tendon vertical with horizontal bar arranged, also have diagonal bar, the multi-form ribs such as radiation muscle, dendroid muscle of similar vertical tendon.
Each part effect of grid is as follows:
1, frame mainly act on be prevent grid in being coated with the cream process distortion and tear, thereby keep the grid shape;
2, the main effect of plate ear is to be used for the welding arranged side by side of pole plate group and to the derivation or the importing of electric current;
3, the main effect of horizontal bar is mechanical strength and the support active material that is connected with vertical rib to increase vertical rib;
4, the main effect of vertical rib is in order to delivered current;
5, mainly to act on be frame on housing precipitation saddle to the plate pin, with fixed polar plate not in the horizontal slip of saddle upper edge.
Size according to battery overall dimension, storage battery reduces large, medium and small type three classes (a small amount of size grid is not summarized in interior) substantially with grid, large-scale grid is that high (240~325) * wide (160~200) * thick (3.0~5.5), medium-sized grid are that (100~160) * (100~160) * thick (1.1~3.0), small-sized grid are (30~80) * (25~60) * thick (2.0~4.0), and unit is mm.
No matter the inner size that adopts which kind of form rib, overall dimension of grid is comprehensive, existing traditional grid interior tendon bar is when design, always horizontal type rib quantity is more than vertical rib (comprising vertical tendon, diagonal bar, radiation muscle) quantity.The total sectional area of the horizontal, vertical rib of multi-form grid (not comprising grid housing sectional area):
Positive grid horizontal type rib total cross section is general all at 80.5~5.0mm 2
The positive vertical rib total cross section of grid is general all at 40.5~3.1mm 2
Negative grid horizontal type rib total cross section is general all at 46.3~2.8mm 2
The negative vertical rib total cross section of grid is general all at 23.9~1.5mm 2
The ratio range of the inner horizontal, vertical rib total sectional area of its grid:
The ratio of the horizontal, vertical rib of positive grid, horizontal bar 76.1~5.0: perpendicular muscle 37.5~3.1=2.03~1.61: 1
The ratio of the horizontal, vertical rib of negative grid, horizontal bar 46.3~2.8: perpendicular muscle 23.9~1.5=1.94~1.87: 1
In a word, in the lead acid accumulator industry, its horizontal type rib quantity is always more than vertical rib quantity in the positive and negative grid, and the total cross section of horizontal type rib is greater than between about 2.03~1.61 times of the total cross-sectional area of vertical rib.Therefore, exist following problems or defective always:
1, storage battery is in the charge and discharge process, and electric current mobility status on pole plate is based on vertical rib conduction always, is auxilliary with horizontal type rib, electrode surface conduction.On same pole plate, vertical rib resistance is always less than horizontal type rib resistance.Electric current always flows to the little direction of conductive section resistance on the grid muscle, and therefore, the vertical rib quantity on the grid and the size of sectional area have just determined the size of the handling capacity of electric current on the grid and produced the height of voltage drop at this.The vertical rib quantity of the existing traditional grid of cause and sectional area are less than the horizontal type rib, under same current density, vertical rib quantity and cross-sectional area thereof only are about 1/2 of horizontal type rib quantity and cross-sectional areas thereof, on the existing vertical rib of traditional grid, bigger current density is arranged, can produce bigger voltage drop, be unfavorable for high-rate battery discharge.
2, the consistency not high (particularly high template grid) of the charging (changing into) of (promptly giving birth to plate) after existing traditional grid coating paste drying, as (being plate ear below) presents the phenomenon of overcharging sometimes on pole plate (promptly give birth to plate change into back) top, and still have the undercharge phenomenon (or to spend PbSO in vain in the pole plate bottom 4Exist) cause on same pole plate different parts, change into (or charging) degree uneven phenomenon, the battery quality after influencing the pole plate presentation quality and assembling.
3, existing grid structure is because vertical rib is few, the horizontal type rib is many, and when grid was carried out coated plate, the coated plate trend just in time presented plumbness with vertical rib, and at this moment, vertical rib and lead plaster adhesion do not have horizontal type rib and lead plaster adhesion good; Because the spacing between the two vertical ribs is bigger, it is more to be coated with the cream amount, gives birth to plate or pole plate lead plaster change in volume when drying and easily cracks (particularly positive plate cracks the presentation quality that influenced pole plate and the useful life of battery) than die between two perpendicular muscle.
4, after the pole plate made of traditional high template grid also exists assembled battery, when heavy-current discharge not only discharge resistance big (vertical rib is less on, the pole plate higher because of pole plate, conductive resistance is bigger by electric current generation voltage drop than die), but also when pole plate is charged at the appointed time, because of causing battery differing heights place, the pole plate height problem produces bigger electric liquid concentration gradient, make charging and discharging currents density unevenness on the pole plate, cause pole plate bottom undercharge or be difficult for charged phenomenon, when battery uses for a long time, easily make the pole plate bottom produce sulfation.
Thus, can see the design that has the inner rib of conventional panels grid, raising to CURRENT DISTRIBUTION on the storage battery internal polar plate and active material utilization is subjected to certain influence, has influenced the overall performance of lead acid accumulator large current discharging capability and storage battery to some extent.Also influenced simultaneously the raising of pole plate outward appearance and pole plate rate of finished products, and the raising of assembling back storage battery whole synthesis performance.Therefore, though grid is participated in into stream reaction in storage battery, the pole plate of being made by grid all has a significant impact the main performance of storage battery, capacity, life-span, heavy-current discharge, charge acceptance etc., so should constantly improve the storage battery grid.
Summary of the invention
The utility model influences performances such as the heavy-current discharge of storage battery, charge acceptance in order to solve existing traditional lead acid accumulator usefulness grid (pole plate), thus the problem that restriction lead acid accumulator combination property improves.The spy improves with grid existing lead acid accumulator, and a kind of lead acid accumulator grid is provided.
The utility model is to adopt following technical scheme to realize: a kind of lead acid accumulator grid, the vertical rib (comprising: vertical tendon, radiation muscle, diagonal bar etc.) that comprises frame, is arranged at the horizontal type rib in the frame and intersects with the horizontal type rib, spacing is 5~20mm between the horizontal type rib; The vertical rib in the frame and the quantity ratio of horizontal type rib are 2.5~1.0: 1.
Described vertical rib is a diagonal bar, and it is 5~60 °/120~175 ° that angle is intersected in diagonal bar and upper and lower side frame junction.
Described vertical rib is the radiation muscle, and it is 2~60 °/120~178 ° that angle is intersected in radiation muscle and upper and lower side frame junction.
Compared with prior art, the utility model is having now under the constant situation of lead acid accumulator plate grid (pole plate) overall dimension, break through original grid internal structure design form, the horizontal type rib that is provided with in the grid, vertical rib (comprising vertical tendon, diagonal bar, radiation muscle) quantity and total cross-sectional area suitable adjustment and change (be vertical rib quantity more than horizontal type rib quantity, the total cross-sectional area of vertical rib is greater than the total cross section of horizontal type rib) have been done.Like this, under the prerequisite of the same quantity active material of carrying, improved the discharge-rate of active material, can reduce electrode polarization again, improve the adhesion between positive active material and the grid rib, reduced the voltage drop that pole plate produces when discharging and recharging, alleviated the sulfation phenomenon of pole plate, make it more to adapt to the requirement of heavy-current discharge, reduced living plate and solidified dry or changing into the fine crack that produces in the dry run, the comprehensive serviceability after improving the pole plate presentation quality and dressing up battery.
The experimental data that grid beneficial effect described in the utility model can be described is provided below:
Table one: under same frame size, the ratio of existing traditional grid and the rib cross-sectional area of grid described in the utility model:
Figure Y20062012766700071
The tradition grid 10.96 4.44 17.93 16.77 76.06 37.50
Novel grid 5.48 8.44 8.96 33.54 38.03 78.75
From above data as can be known, grid described in the utility model is compared with existing traditional grid of its same overall dimension because its vertical rib quantity and the conduction total sectional area obviously increase, greater than horizontal type rib quantity and total sectional area.Therefore, under the same grid size of same electric current, the current density of carrying on the perpendicular muscle of the utility model grid reduces, be about perpendicular muscle loaded current density on the existing grid 1/2 (be voltage drop on the grid described in the utility model be on the perpendicular muscle of traditional grid voltage drop about 1/2).The high-rate battery discharge performance is enhanced (seeing the following form), makes grid described in the utility model be more suitable for the heavy-current discharge performance requirement.
Table two: adopt the grid usefulness of same overall dimension different internal structure, the 2VB-85AH battery is produced pole plate under the same conditions and is assembled into lead-acid battery, to its heavy-current discharge, and the comparison of its battery terminal voltage value:
Figure Y20062012766700081
From above data as can be known, grid described in the utility model is compared with existing traditional grid of its same overall dimension, adopt the lead plaster of same composition, same quantity, existing traditional grid and the grid described in the utility model to same overall dimension carries out coated plate, curing, drying, changes into and dress up cell and carry out big electric current 5C under the same conditions 20A, 10C 20A discharges respectively, and the terminal voltage value of battery relatively when its discharge 5S, 10S, 30S: adopt grid discharge voltage value described in the utility model apparently higher than traditional grid, help the output of the energy content of battery in moment.
Table three: under the same conditions to existing traditional grid of same overall dimension and grid described in the utility model carry out coated plate, solidify dry, change into the pole plate drying after the comparison of pole plate presentation quality:
Figure Y20062012766700091
From above data as can be known, grid described in the utility model is compared with existing traditional grid of its same overall dimension, the obviously good and existing traditional grid presentation quality of the presentation quality of grid described in the utility model, and the miniature crackle in grid surface obviously reduces.
In addition, grid described in the utility model (particularly vertical rib is the grid of radiation muscle) and existing traditional grid (vertical rib is the grid of radiation muscle) are under the same conditions, make living plate and give birth to the plate formation charging under the same conditions, consequently: the position produces PbSO under the pole plate that grid described in the utility model is made 4Spend in vain less even not appearance, and the upper and lower position of polar board surface change into more even; And the pole plate bottom that existing traditional grid is made produces PbSO 4Spend in vain morely, pole plate up and down position changes into inhomogeneously, and the phenomenon of overcharging is arranged at pole plate top and the pole plate bottom owes charging phenomenon and takes place.Because the vertical rib quantity of grid described in the utility model and cross-sectional area are greater than the vertical rib quantity and the cross-sectional area of existing traditional grid, so the battery that the pole plate that grid described in the utility model is made is assembled into is charge acceptance when long-term the use, the battery that the pole plate of making than existing traditional grid is assembled into increases, and negative plate produces the also correspondingly minimizing of salinization phenomenon of sulfate.
Description of drawings
Fig. 1 is the structural representation of grid;
Among the figure: the 1-frame; 2-horizontal type rib; The vertical rib of 3-.
Embodiment
A kind of lead acid accumulator grid comprises frame 1, is arranged at the horizontal type rib 2 in the frame 1 and intersects fixing vertical ribs 3 (comprising: vertical tendon, radiation muscle, diagonal bar etc.) with horizontal type rib 2 that spacing is 5~20mm between the horizontal type rib 2; The vertical rib 3 in the frame 1 and the quantity ratio of horizontal type rib 2 are 2.5~1.0: 1.
Described vertical rib 3 is a diagonal bar, and it is 5~60 °/120~175 ° that angle is intersected in diagonal bar and upper and lower side frame junction.
Described vertical rib 3 is the radiation muscle, and it is 2~60 °/120~178 ° that angle is intersected in radiation muscle and upper and lower side frame junction.
During concrete enforcement, to automobile type or middle or small close valve control battery with the inner horizontal, vertical rib quantity of grid, when cross-sectional area is adjusted and changed, can directly take to exchange the form of (not comprising that vertical rib is diagonal bar and radiation rib): promptly in existing traditional grid, horizontal type rib quantity is constant, with its direction, rotated position an angle of 90 degrees, remain unchanged down in its rib spacing, as vertical rib (be about to former horizontal type rib as vertical rib, former vertical rib is as the horizontal type rib); In addition, horizontal, vertical formula rib to dwarf forms grid, fixed or towed high template grid inside can carry out: suitably increase vertical rib quantity, suitably reduce the change of horizontal type rib quantity, reduce the poor of horizontal, vertical formula rib total sectional area ratio as possible and (promptly improve the inner vertical rib quantity of grid and its total sectional area, reduce horizontal type rib quantity and its total sectional area simultaneously), grid described in the utility model is the most practical to the dwarf forms grid, best embodies technical characterictic of the present utility model and actual effect.

Claims (3)

1, a kind of lead acid accumulator grid comprises frame (1), is arranged at the interior horizontal type rib (2) of frame (1) and intersects fixing vertical rib (3) with horizontal type rib (2), it is characterized in that spacing is 5~20mm between the horizontal type rib (2); The vertical rib (3) in the frame and the quantity ratio of horizontal type rib (2) are 2.5~1.0: 1.
2, lead acid accumulator grid according to claim 1 is characterized in that described vertical rib (3) is a diagonal bar, and it is 5~60 °/120~175 ° that angle is intersected in diagonal bar and upper and lower side frame junction.
3, lead acid accumulator grid according to claim 1 is characterized in that described vertical rib (3) is the radiation muscle, and it is 2~60 °/120~178 ° that angle is intersected in radiation muscle and upper and lower side frame junction.
CNU2006201276679U 2006-09-13 2006-09-13 Grid for lead-acid battery Expired - Fee Related CN200947445Y (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944616A (en) * 2010-09-26 2011-01-12 天能电池集团有限公司 Grid of storage battery
CN104577056A (en) * 2014-12-03 2015-04-29 超威电源有限公司 Positive plate of lead-acid storage battery and manufacturing method of positive plate
WO2015161628A1 (en) * 2014-04-22 2015-10-29 浙江天能电池(江苏)有限公司 Positive grid of high-strength storage battery
CN110212202A (en) * 2019-04-11 2019-09-06 淄博火炬能源有限责任公司 The positive grid of tubular cells and its cutting method
CN112467148A (en) * 2020-10-20 2021-03-09 天能电池集团股份有限公司 Anti-bulging battery

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944616A (en) * 2010-09-26 2011-01-12 天能电池集团有限公司 Grid of storage battery
CN101944616B (en) * 2010-09-26 2012-11-14 天能电池集团有限公司 Grid of storage battery
WO2015161628A1 (en) * 2014-04-22 2015-10-29 浙江天能电池(江苏)有限公司 Positive grid of high-strength storage battery
CN104577056A (en) * 2014-12-03 2015-04-29 超威电源有限公司 Positive plate of lead-acid storage battery and manufacturing method of positive plate
CN110212202A (en) * 2019-04-11 2019-09-06 淄博火炬能源有限责任公司 The positive grid of tubular cells and its cutting method
CN110212202B (en) * 2019-04-11 2020-12-29 淄博火炬能源有限责任公司 Tubular battery positive grid and cutting method thereof
CN112467148A (en) * 2020-10-20 2021-03-09 天能电池集团股份有限公司 Anti-bulging battery
CN112467148B (en) * 2020-10-20 2021-12-17 天能电池集团股份有限公司 Anti-bulging battery

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Granted publication date: 20070912

Termination date: 20110913