CN1070771A

CN1070771A - A kind of lead accumulator and manufacture method thereof

Info

Publication number: CN1070771A
Application number: CN91108845A
Authority: CN
Inventors: 刘云招
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-17
Filing date: 1991-09-17
Publication date: 1993-04-07

Abstract

A kind of lead accumulator, it can improve its life-span effectively, the scheme that solves is: active material is not come off from pole plate grid frame, and has porousness for a long time, concrete grammar is: do not allow to separate between the active material particle being useful on the pole plate, with the circular hole that breaks away from pole plate grid frame, it is 10 that every pole plate is used as the diameter that is covered with that does not allow active material particle to be shed to go in the electric liquid ^-4-10 ^-5The paper bag that micropore is made every paper closes, every group of single lattice battery is used as and compresses plate active material, do not allow to separate and break away between the active material particle pressing plate of pole plate grid frame, the pole plate of sealing is placed dividing plate, glass fibre, pressing plate, tighten then pressing plate Luo silk long novel storage battery of life-span.

Description

A kind of lead accumulator and manufacture method thereof

The present invention relates to the life problems of lead accumulator, and it can make the life-span of lead accumulator increase significantly.

Lead accumulator has many good qualities, and has a wide range of applications in social life, but a great shortcoming is also arranged, and that is exactly the cost height, but the life-span is short, and be about one and half homemade lead accumulator general useful life of China at present.The present invention is a head it off, and it has, and cost is low, and effect is remarkable, advantages such as easy production.

Fig. 1 is conventional chloride plate, and Fig. 2 is plumbous antimony (pb-sb) the alloy pole plate grid frame that contains a small amount of antimony, put on the grid frame active material positive/negative plate; The active material of positive plate is brown lead oxide (pbo ₂) active material on the negative plate is pure lead (pb), chemical reaction on the positive plate is stronger than negative plate, during normal use, active material on the positive plate comes off easily often, so conventional storage battery all made stillpot (about 2cm height) now people think that all pole plate is most of or all become Fig. 2 from Fig. 1, then think life of storage battery termination.The inventor finds in practice, after storage battery used a period of time, capacity can descend, the storage battery that some capacity becomes very little, after taking apart, find on the positive and negative pole plate surface also more intactly, but slightly apply a little pressure with object, active material just comes off one after another, particularly the active material on the positive plate comes off faster, and many red powder are arranged in the stillpot of storage battery, the inventor has chemically examined this powder, finds that wherein major part is pbo ₂In view of the above, the inventor thinks: this is owing to participate in the cause that the active material on the strong positive plate of chemical reaction comes off, because though active material is stained with knot together with the grid frame, but exist certain clearance between them unavoidably, also there is certain clearance between the particle of active material, that is to say, have certain resistance between them.When battery charging and discharging, these resistance liberated heats are Q=0.24I ²A reason of plate buckling modification when RT, Here it is battery high current charge-discharge, the negative consequence meeting that this resistance produces impels coming off gradually of active material; Use so after a period of time, the pole plate that the surface is more intact, in fact with the coherent active material of pole plate grid frame major part come off, be to have had the gap between active material and the grid frame, " so one touch promptly collapse ", if make active material be unlikely to come off, and make itself and grid frame that excellent contact be arranged, also keep excellent contact between the active material particle from the grid frame.Will there be an important breakthrough in the life-span of lead accumulator so.

Active material is not come off from the grid frame? the inventor finds from the stillpot of storage battery that by means of microscope the particle of the active material that comes off is to be random spherical or spherical aggregate, and little irregular spherical particle diameter is 10 ^-3The mm order of magnitude, big diameter are 10 ^-2The mm order of magnitude, and storage battery is discharging and recharging, the chemical reaction formula in the process is:

Storage battery in charge and discharge process, motion be sulfate ion, and the diameter of ion is 10 ^-6The mm order of magnitude, this shows, the dimension of the particle of active material is much larger than ion, as long as so produce the size of micropore less than active material particle, and acidproof much larger than the ion dimension every paper, pole plate is closed every paper with this, and pole plate applied certain pressure, active material can not be come off from pole plate grid frame, but sulfate ion can pass through every paper and active material chemically reactive again unblockedly, the life-span of this lead accumulator will greatly improve so, in order to confirm above theory, the inventor uses the active material that comes off from useless pole plate to duplicate pole plate (duplicate certainly back pole plate outward appearance etc. not as new pole plate) and with reaching it being closed every paper of above-mentioned theory requirement, in order to make active material and grid frame that excellent contact be arranged, with pressing plate with itself and negative plate, every paper, after glass fibres etc. compress, putting them into electrolyte carries out routine and discharges and recharges, found that it has possessed the ability that discharges and recharges, and near brand-new pole plate, use the method, the lead accumulator that the inventor makes with brand-new pole plate has reached 800 times with high current charge-discharge (45 ampere-hour storage batterys with 60 amperes current charges), accumulator jar is also intact near new as a result, but the storage battery made from conventional method, then scrap less than 90 times with big like this current charges, specify this lead accumulator and manufacture method thereof below in conjunction with Fig. 3～13,1 among Fig. 3 is the pole plate front view of this novel storage battery; Among Fig. 43 is pole plate grid framves of this novel storage battery, and 8 of Fig. 5 is top boards of single lattice storage battery, and 22 among Fig. 6 is lower platens, and 40 among Fig. 8 is that the micro-pore diameter that is covered with is 10 ^-4～10 ^-5The expanded view of the pole plate bag of making every paper of mm, in the accompanying

drawing

2,19,43 is centre bore, 41,42 is the semicircle of centre bore, 8 ', the 21st, last, sheet iron in the middle of the lower platen, Fig. 5, the dotted line circular hole is the circular hole of sheet iron among Fig. 6, among Fig. 6 23～38 is lower platen Luo screw mandrel, top board 8, the plastics that lower platen 22 usefulness are acidproof, or synthetic resin, composite asphalt, compounded rubber, or other acid-resistants are cast, (material of the Luo screw mandrel on the lower platen is by the decision of lower platen material) Fig. 7 is the front view of lower platen 22, wherein broken section is the profile of screw mandrel, and 39 for reinforcing screw mandrel Luo silk nail.Pole plate also can be made as Fig. 9, shape shown in Figure 10, in the time of as shown in Figure 9, the top board of adapted is shown in 44 among Figure 11 ', lower platen 44 ' ' as long as circular hole 43-49 among Figure 11 is become Luo screw mandrel as band among Fig. 7 is reinforced Luo silk nail 39, during as shown in figure 10 shape of pole plate, the top board of adapted shown in 56 among Figure 12 ', lower platen 56 ' '; Also be the circular hole 50-55 among Figure 12 to be become in Fig. 7 the Luo silk post that band adds Luo silk nail 39 get final product, Fig. 9, the pole plate bag that pole plate shown in Figure 10 is used also are to be 10 with being covered with diameter ^-4-10 ^-5The micropore of mm is made every paper.The small sircle hole that the pole plate bag has also will align with the pole plate hole among Fig. 9, Figure 10.

Be illustrated the manufacture method of this novel storage battery below in conjunction with embodiment, embodiment 1 at first makes pole plate grid frame shown in 3 among Fig. 4, the room is left in the centre, leave circular hole 2 in the pole plate of die cast, as shown in Figure 3, when making pressing plate, at first sheet iron is become shape shown in dotted lines in Figure 5 with punch ram, then the porose sheet iron of polylith after punch press processing fixed the back heating quenching with Luo silk nail, increase its hardness, again will the sheet iron after Overheating Treatment putting into corresponding circular hole has in the mould of thin round end Luo silk nail, the placement of Luo silk nail (also can not put 39) shown in 39 among Fig. 7, inject acidproof plastics then, or compounded rubber, synthetic resin, or other acid-resistant, promptly get the lower platen 22 among Fig. 6 after the cooling, the mould of making pressing plate must satisfy: iron plate can not be exposed, and round end Luo silk nail 39 can not expose in screw mandrel, and the Luo screw mandrel of being cast is preferably formed as the Luo line.Certainly it is also passable to open tooth again after can not former's demoulding.In like manner the manufacture method of the top board of pole plate is identical substantially with lower platen, and difference is: top board only has circular hole, does not have the Luo screw mandrel and reinforces the Luo silk, and will be covered with diameter is 10 ^-4-10 ^-5Being cut into every paper of mm micropore is shown in Figure 8 40, glues into the pole plate bag with acid-proof resin again, and then, it is packaged that pole plate is put into this bag, gets glass fibre, pole plate, dividing plate simultaneously ready.After above material is got ready, by the general assembly of carrying out shown in Figure 13, at first on lower platen 22, put glass fibre 57, put negative plate 58 again, centre bore sidewall at negative plate is coated acidproof synthetic resin, puts glass fibre 59 again, dividing plate 60, put layer of glass 61 again, put positive plate 62, put glass fibre 63 again, every paper 64, glass fibre 65, negative plate 66, glass fibre 67 is every paper 68, coat acidproof synthetic resin in round-meshed place ... so circulation must be to put glass fibre 76 at last, puts top board 8 after putting layer of glass 74 behind the negative plate 75 again, tighten 69 again, 70,71,72,73 ... wait the Luo silk cap on all screw mandrels, the pressure power 0.40 * 10 that pole plate is produced ⁵Handkerchief-1.20 * 10 ⁵Between the handkerchief, certainly some still can greatly, at last positive/negative plate is connected respectively single lattice battery, (the polar plate number of every single lattice battery pack is decided by needs) shop drawings 9, the required top board 44 of shown pole plate ', lower platen 44 ' ' make the top board 56 ' lower platen 56 of the pole plate institute adapted shown in Figure 10 " time; method; step; used material and foregoing basic identical; difference is 44 ' only to have 43; 44,45,46,47,48,49 totally 7 circular holes, 44 " on also only have 7 lead screw (among the figure 44 ", 56 " do not draw); in like manner 56 ' on 50-55 totally 6 circular holes are also only arranged, lower platen 56 " also only has 6 Luo screw mandrels.

Embodiment 2 is identical with embodiment 1 basically, and difference is: in order to reduce cost, upper and lower pressing plate is cast with enough high compounded rubber, duroplasts or the synthetic resin of hardness, the inside do not add iron plate 8 ', 21, be 10 with being covered with diameter only with positive plate ^-4-10 ^-5The acidproof pole plate bag of making every paper of mm micropore closes, negative plate can not seal, also can save dividing

plate

60,64 during the single lattice battery of (because of negative plate is not easy to damage) assembling ... all the other are identical with embodiment 1, and effect is near embodiment 1, after service time is long, if storage battery vulcanization, then storage battery is carried out desulfurization at once, and desulfurization belongs to prior art, and very simple, also no longer describe in detail at this.

Claims

1, a kind of lead accumulator, it includes dividing plate, glass fibre, battery case, sulfuric acid solution etc., it is characterized in that: have on the pole plate not allow between active material particle to separate and circular hole that the pole plate grid frame that comes off is used, and pole plate is 10 with the diameter that is covered with that does not allow active hand matter to be shed to go in the electric liquid ^-4-10 ^-5The micropore of mm closes every paper,

Do not allow active material to break away from the upper and lower pressing plate of pole plate grid frame.

2, according to the device shown in the claim 1, it is characterized in that: it is that 4-8.5mm is advisable that the pole plate of lead accumulator has circular hole, Circularhole diameter, and the pole plate of lead accumulator is 10 with being covered with diameter ^-4-10 ^-5The paper bag that the micropore of mm is made every paper closes, and has on sheet iron, the pressing plate in the middle of the pressing plate that does not allow active material disengaging pole plate grid frame that fixed polar plate is used, and Luo screw mandrel, circular hole are arranged.The outer surface of sheet iron closes with hard acidproof plastics or compounded rubber, synthetic resin, composite asphalt.

3, according to the device shown in the claim 1, it is characterized in that: the pressing plate of fixed polar plate can not put sheet iron, reinforce the thin cheese head screw nail 39 of usefulness, can be directly with acidproof duroplasts, synthetic resin, compounded rubber or composite asphalt are once directly cast, and are 10 with being covered with diameter only ^-4-10 ^-5The paper bag of making every paper of mm closes positive plate, and negative plate does not seal.

4, according to the device shown in the claim 1, its manufacture method is characterised in that: earlier sheet iron is become the required shape of pressing plate with punch ram, after with this polylith sheet iron with Luo silk nail fixing after, heating quenching, will be covered with diameter is 10 ^-4-10 ^-5The paper bag every paper is made of mm micropore closes pole plate (this paper bag can with acidproof synthetic resin as adhesive) and will the sheet iron after Overheating Treatment puts into corresponding circular hole and have in the mould of thin round end Luo silk nail 39, inject hard acidproof plastics then, synthetic resin, compounded rubber, or composite asphalt (is preferably in to put into before the sheet iron earlier at mould and injects above-mentioned one of several acid-resistant of skim, to guarantee that iron plate and Luo silk nail 39 does not expose) promptly get lower platen 22, the manufacture method and the lower platen of top board are basic identical, difference is, top board does not have screw mandrel, and circular hole is only arranged; Produced lower platen screw mandrel diameter is 4-8mm, when make being fit to Luo silk cap that screw mandrel uses, also be do mould earlier, one of above-mentioned acid-resistant is injected in the back, promptly forms Luo silk cap.

When 5, device according to claim 1 is characterized in that making pole plate grid frame, leave empty position, when making pole plate, in the mould cylinder will be arranged, on the pole plate that guarantees to produce circular hole to be arranged in the circular hole place corresponding with pole plate.

6, device according to claim 1, be characterised in that during total holding storage battery lower platen is placed on the workbench, on lower platen, put glass fibre, put negative plate again, on the inwall of pole plate circular hole, be coated with the acidproof synthetic resin of last layer or other acid-resistant, put glass fibre again, dividing plate, glass fibre, at dividing plate, round-meshed place also is coated with the acidproof synthetic resin of last layer in the glass fibre, or other acid-resistant, put positive plate again, on the round-meshed local inwall of positive plate, also be coated with the acidproof synthetic resin of last layer or other acid-resistants again, put glass fibre again, dividing plate ... glass fibre, negative plate in the localities round-meshed, is coated acidproof synthetic resin ... go round and begin again with this, at last the Luo silk cap of all screw mandrels is tightened, making the pressure between pole plate is 0.40 * 10 ⁵Handkerchief-1.20 * 10 ⁵Between the handkerchief, strengthen that some are also passable, at last with negative plate, positive plate connect respectively single lattice battery, make single lattice battery after, on demand single lattice battery strings is together in parallel, finished product.