CN1257317A - Lead-acid accumulator with curved surface electrode plate structure - Google Patents
Lead-acid accumulator with curved surface electrode plate structure Download PDFInfo
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- CN1257317A CN1257317A CN98122090A CN98122090A CN1257317A CN 1257317 A CN1257317 A CN 1257317A CN 98122090 A CN98122090 A CN 98122090A CN 98122090 A CN98122090 A CN 98122090A CN 1257317 A CN1257317 A CN 1257317A
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- curved surface
- surface electrode
- electrode plate
- acid accumulator
- lead acid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The present invention provides a lead-acid accumulator with curved polar plate structure, in which the polar plate of the cell is the ridge-shaped curved polar plate formed from several plane polar plate strips which are concavo-convex allernatively arranged, and between every two adjacent plane polar plates there is an included angle of 70-145 deg., and two end walls of casing,diaphragm and inner side of cover are made into the forms idential to the structure of curved polar plate. By utilizing structural characteristics of curved polar plate said invention can raise the weight specific energy of lead-aid accumulator, and can effectively improve the heavy current charging and discharging property, and prolong its service life.
Description
The present invention relates to storage battery, relate to lead acid accumulator particularly, a kind of in particular lead acid accumulator with curved surface electrode plate structure.
The development of lead acid accumulator has had the history in more than 130 year so far, as the indispensable a kind of power supply of every profession and trade, has been widely used in fields such as automobile, aviation, railway, communication, electronics, power industry.
In the very long evolution of lead acid accumulator industry, continuing the paste spread type positive/negative plate or the anodal production technology that cooperates the paste spread type negative pole of calandria of traditional flat structure for a long time, though countries in the world are at grid material, lead paste formula, the achievement in research of aspects such as production technology makes the technical performance of plate pole plate lead acid accumulator obtain continuous improvement and significant progress, but, some disadvantages of lead acid accumulator, big such as volume, gravimetric specific energy is low, useful life, short the grade then do not obtain breakthrough change, and this has just hindered the popularization and the use of the higher level range of application of lead acid accumulator.
China utility model patent CN 91215676.7 discloses a kind of shaped form lead acid accumulator, comprise battery case, battery cover, battery case dividing plate, grid and pole plate, wherein to have formed radian be the semi arch curve-like of 1/2 π for grid and pole plate, and this shaped form pole plate is pressed the accumulator plate sequence arrangement, the dome arc place of positive plate is facing to the recess of negative plate, and it forms utmost point group with the ultra-fine fibre glass barrier film at interval.Though it is many that the lead acid accumulator of this curve electrode plate structure under the prerequisite that does not increase overall dimensions, makes the reaction cross-section increase, also promptly improved the gravimetric specific energy of storage battery, and the life-span is improved, practice shows that still there are some shortcomings in it.At first, above-mentioned pole plate is the semi arch curve-like that radian is 1/2 π, when forming utmost point group, because the restriction of radian can not coincide very compactly, certainly will just increase volume so virtually, so actual effect is not good, and if reduced volume, make pole plate coincide compactlyer, then must change the radian of adjacent plate, this is obviously unactual more.Secondly, owing to adopt the single-layer glass fiber barrier film between the pole plate, and the glass fiber material pulling force is poor, tensile fracture is poked easily and is caused short circuit when assembling, therefore and also can't form curved face type pocket type dividing plate, can not solve at all because of the plate active material caused self-discharge phenomenon that comes off.
One object of the present invention provides a kind of lead acid accumulator with curved surface electrode plate structure.
Another object of the present invention provides a kind of lead acid accumulator that improves gravimetric specific energy and volumetric ratio energy characteristics that has.
A further object of the present invention provides a kind of lead acid accumulator that can improve high rate during charging-discharging.
Another purpose of the present invention is that is improved the useful life of the lead acid accumulator that provides.
For achieving the above object, the invention provides a kind of lead acid accumulator, comprise accumulator housing, battery cap, wherein, form some cell jars that are separated by the cell jar dividing plate in the accumulator housing, every group storage battery is built-in with the utmost point group that is made up of accumulator plate, and its architectural feature is, the concavo-convex alternate ridge curved surface electrode plate that this electrode plate grid is made up of some planes pole plate bar has angle between wherein per two adjacent planar pole plate bars.
According to embodiments of the invention, the width of each plane pole plate bar of forming this curved surface electrode plate is identical, and the angle between the per two adjacent plane pole plate bars is identical;
The top that the present invention's two adjacent plane pole plate bars intersect has the radian that radius of the radian is R2-R3.
Angle between the present invention's two adjacent plane mean pole laths is preferably 90 °-125 ° between 70 °-145 °.
The composite diaphragm of lining to form between the positive and negative curved surface electrode plate of the utmost point of the present invention group by glass fibre separator and PE dividing plate.These composite diaphragms form the pocket type structure, and positive and negative curved surface electrode plate and composite diaphragm are the full state that coincide.
The end walls of accumulator housing of the present invention has identical shaped with curved surface electrode plate and curved surface shape structure angle.
Cell jar dividing plate of the present invention has identical shaped with curved surface electrode plate and curved surface shape structure angle.And the battery cap inboard has identical shaped with the cell jar dividing plate and curved-surface structure angle.
Provide embodiments of the invention below in conjunction with accompanying drawing, and be described in further detail.
Fig. 1 is the structural representation of the lead acid accumulator of curved surface electrode plate structure of the present invention.
Fig. 2 is a battery case schematic top plan view of the present invention.
Fig. 3 is a curved surface electrode plate front view of the present invention.
Fig. 4 is the upward view of Fig. 3.
Consult Fig. 1-2, the lead acid accumulator of curved surface electrode plate structure of the present invention comprises accumulator housing 10, battery cap 11, wherein, cell jar 13 in the accumulator housing 10 is divided into some groups by battery case dividing plate 16, is provided with the utmost point group 15 that is made up of accumulator plate in every Battery pack groove 13.
Accumulator plate of the present invention be on curved surface grid 18 through being coated with steps such as cream and make, wherein curved surface grid 18 can form by die casting, also can make by pressure casting method.By Fig. 3 and Fig. 4 as can be known, above-mentioned curved surface grid 18 is the ridge of being made up of some surface plate grizzly bars, whole grid face is concavo-convex alternate waveform, wherein form certain effective angle between the two adjacent surface plate grizzly bars, and certain radian is formed on the top that two adjacent surface plate grizzly bars intersect, and its radius of the radian is R2-R3.
The present invention is owing to adopted above-mentioned curved surface electrode plate, and for these curved surface electrode plates of in the cell jar 13 of standard specification size, packing into, as can be seen from Figure 2, battery case dividing plate 16 of the present invention has adopted the curved-surface structure that identical effective angle is arranged with above-mentioned curved surface electrode plate, moreover, the two side ends wall 17 of battery case 13 of the present invention is also made the curved surface shape that identical effective angle is arranged with curved surface electrode plate, so just make curve pole plate of the present invention can be as the ordinary flat pole plate the light groove that is fit into, and guarantee to make space in the storage battery to obtain really effectively utilizing.
The inboard formation and the battery case dividing plate 16 corresponding curve-likes of battery cap 11 of the present invention, with the sealing of increase lid with housing 10, the difficult leakage that takes place to produce because of gas leakage is conducted electricity, and makes that formation is whole easily after lid and the housing heat seal.
The formation of the utmost point group 15 in every Battery pack groove 13, similar with dull and stereotyped utmost point group, system is formed by the some positive and negative pole plate of curved surface is closely arranged, at each curved surface is lined with dividing plate between the positive and negative pole plate, and positive plate and negative plates all in each utmost point group weld together separately, and link to each other with battery case pole 12 again.It is worthy of note, dividing plate used among the present invention adopts the composite diaphragm of being made up of glass layer and PE layer, it reaches the anti-strong characteristics of piercing through property of PE by force with the glass fibre water absorption, and, on concrete formation, adopted the pocket type structure, the curved surface positive plate is inserted in the bag, even pole plate causes coming off of active material down because of distortion and oscillating action in the charge and discharge process like this, also just stayed in the composite diaphragm bag, and can not be deposited in the battery case, this has just been avoided the self-discharge phenomenon that causes because of the active material that comes off, thereby helps the prolongation in the useful life of storage battery.In addition, because curved surface electrode plate of the present invention makes it and composite diaphragm can form a kind of full state that coincide.
In addition, accumulator housing of the present invention bottom is flat, it is different from the chimb bottom that prior art has, this is to be pocket type composite diaphragm structure because the present invention uses, it has been stopped because of the pole plate short circuit that active material causes that comes off, thereby just needn't utilize chime to reach the purpose of insulation, this makes that not only the manufacturing of accumulator housing is easy, but also material-saving and increased capacity.
As mentioned above, curved surface grid 18 of the present invention, present and a kind ofly intersect and the ridge that forms by some surface plate grizzly bars, and have certain angle between two adjacent planes, from the angle that is easy to make, obviously, these angles are identical, and the width of each surface plate grizzly bar can be identical, and just the width at its two ends may be slightly littler, and this depends on the width of cell jar and the bar number of plane grid.In addition, this curved surface grid 18 can regard with grid both sides, plane to serve as to hold the limit and laterally inwardly be squeezed into corrugated structure along it as.
Corner dimension between curved surface grid 18 adjacent planes of the present invention is determining the gravimetric specific energy value of storage battery, when angle is 70 °, and 90 °, when 105 ° and 125 °, its corresponding gravimetric specific energy is respectively 55 (wh/kg), 51-52 (wh/kg), 48-50 (wh/kg) and 45 (wh/kg).But choosing of these curved surface utmost point grid 18 angles also should take all factors into consideration the convenience of its processing and the factors such as standardization of moulding, and the best angle value of taking all factors into consideration is 90 °-125 °.
In sum, storage battery of the present invention is owing to adopted curved surface electrode plate structure, and the characteristics of utilizing its surface area to increase are reduced the pole piece amount of every group on storage battery, not only saved cost, but also its gravimetric specific energy and volumetric ratio energy are greatly improved.In addition, because the effective angle between all planes of curved surface electrode plate makes the rigidity of pole plate improve a lot, also improved the high rate during charging-discharging of lead acid accumulator.Have again, angle structure between the curved surface electrode plate plane makes that the lead plaster in the pole plate is coated with the both sides that are embedded in angle, not only guarantees the reinforcement of pole plate non-deformability, also improved the caducous situation of active material, thereby is improved the useful life of lead-acid accumulator with curved surface electrode plate.In addition, curved surface electrode plate intersects top margin and has the structure of radian, makes pole plate avoid point discharge again, and makes the composite diaphragm that is sandwiched in therebetween be difficult for being poked.
Claims (10)
1, a kind of lead acid accumulator of curved surface electrode plate structure, comprise accumulator housing, battery cap, wherein, form some cell jars that are separated by the cell jar dividing plate in the accumulator housing, every group storage battery groove is built-in with the utmost point group that is made up of accumulator plate, it is characterized in that the concavo-convex alternate ridge curved surface electrode plate that this pole plate is made up of some planes pole plate bar has angle between wherein per two adjacent planar pole plate bars.
2, the lead acid accumulator of curved surface electrode plate structure according to claim 1, the width of each plane pole plate bar that it is characterized in that forming this curved surface electrode plate is identical, and the angle between the per two adjacent plane pole plate bars is identical.
3, the lead acid accumulator of curved surface electrode plate structure according to claim 1 is characterized in that the top margin that this two adjacent planes pole plate bar intersects has the radian that radius of the radian is R2-R3.
4, the lead acid accumulator of curved surface electrode plate structure according to claim 1 is characterized in that angle between this adjacent plane grid bar between 70 °-145 °, is preferably 90 °-125 °.
5, the lead acid accumulator of curved surface electrode plate structure according to claim 1 is characterized in that forming the composite diaphragm of lining to be made up of glass layer and PE layer between the positive and negative curved surface electrode plate of this utmost point group.
6, the lead acid accumulator of curved surface electrode plate structure according to claim 5 is characterized in that this composite diaphragm forms the pocket type structure, and is the full state that coincide with positive and negative curved surface electrode plate.
7, the lead acid accumulator of curved surface electrode plate structure according to claim 1 is characterized in that the end walls of this accumulator housing has the curved surface shape structure identical shaped with curved surface electrode plate.
8, the lead acid accumulator of curved surface electrode plate structure according to claim 1 is characterized in that this cell jar dividing plate has the curved surface shape structure identical shaped with curved surface electrode plate.
9, the lead acid accumulator of curved surface electrode plate structure according to claim 8 is characterized in that this battery cap inboard has the curved-surface structure identical shaped with the cell jar dividing plate.
10, the lead acid accumulator of curved surface electrode plate structure according to claim 1, the bottom that it is characterized in that this accumulator housing is flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98122090A CN1257317A (en) | 1998-12-11 | 1998-12-11 | Lead-acid accumulator with curved surface electrode plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98122090A CN1257317A (en) | 1998-12-11 | 1998-12-11 | Lead-acid accumulator with curved surface electrode plate structure |
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| Publication Number | Publication Date |
|---|---|
| CN1257317A true CN1257317A (en) | 2000-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98122090A Pending CN1257317A (en) | 1998-12-11 | 1998-12-11 | Lead-acid accumulator with curved surface electrode plate structure |
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| CN (1) | CN1257317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943800A (en) * | 2014-04-11 | 2014-07-23 | 昆山达功电子有限公司 | Storage battery |
| CN106848154A (en) * | 2017-02-09 | 2017-06-13 | 重庆伟业电源材料有限公司 | A kind of glass fibre separator for battery and preparation method thereof |
-
1998
- 1998-12-11 CN CN98122090A patent/CN1257317A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943800A (en) * | 2014-04-11 | 2014-07-23 | 昆山达功电子有限公司 | Storage battery |
| CN103943800B (en) * | 2014-04-11 | 2016-03-09 | 昆山达功电子有限公司 | A kind of storage battery |
| CN106848154A (en) * | 2017-02-09 | 2017-06-13 | 重庆伟业电源材料有限公司 | A kind of glass fibre separator for battery and preparation method thereof |
| CN106848154B (en) * | 2017-02-09 | 2019-03-26 | 重庆伟业电源材料有限公司 | A kind of glass fibre separator and preparation method thereof for battery |
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| C53 | Correction of patent for invention or patent application | ||
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Free format text: CORRECT: APPLICANT; FROM: SHAO MANBO TO: TIBET HEBANG NEW POWER TECHNOLOGY RESEARCH AND DEVELOPMENTCO., LTD. |
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Address after: 20 floor, Kam trade building, 29 Jin Xin Street, Chengdu, Sichuan Applicant after: Hebang New Power Technology Research and Development Co., Ltd., Xizang Address before: Shanghai City, Pudong Yi Road 41 Lane 5, Room 203 Applicant before: Shao Manbai |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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