CN202839848U

CN202839848U - Coiled type double-end confluence lead-acid storage battery core

Info

Publication number: CN202839848U
Application number: CN201220478312XU
Authority: CN
Inventors: 徐平
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-19
Filing date: 2012-09-19
Publication date: 2013-03-27
Anticipated expiration: 2022-09-19

Abstract

The utility model discloses a coiled type double-end confluence lead-acid storage battery core. A positive electrode affluence end is arranged at the upper end of a band type positive electrode slab lattice; a negative electrode affluence end is arranged at the lower end of a band type negative electrode slab lattice; the band type positive electrode slab lattice, a baffle, a band type negative electrode slab lattice and a second baffle are alternately stacked; the positive electrode affluence end and the negative electrode affluence end are staggered from each other and are coiled to form a cylindrical storage battery core with two helical polarity end faces; the positive electrode affluence end is confluenced to form a positive electrode confluence bar; the negative electrode affluence end is confluenced to form a negative electrode confluence bar; and polarity wiring column terminals are respectively connected to the positive electrode confluence bar and the negative electrode confluence bar. The process is simple and reliable; the performance of the coiled type double-end confluence lead-acid storage battery core is higher than that of a single-end induced electrode, so that the surface area of the battery is increased; the current density on the electrode during charging and discharging is reduced; electrochemical polarization is reduced; the specific energy and the specific power are improved; and the charging and discharging cyclic service life is prolonged.

Description

The takeup type both-end lead acid accumulator core that confluxes

Technical field

The utility model relates to storage battery, relates in particular to a kind of takeup type both-end lead acid accumulator core that confluxes.

Background technology

Spirally wound lead acid battery is the new product of developing in recent years, is the same with the operation principle of traditional lead acid accumulator, and it has just had improvement in manufacturing process, makes it have the more excellent characteristic that is different from traditional lead acid accumulator.

The course of work of lead acid accumulator is exactly the chemical reaction process between lead and the sulfuric acid, in order to improve the specific capacity of lead acid accumulator, need to strengthen as far as possible the response area between the both positive and negative polarity, improves the utilance of active material with this.For this reason, people adopt the mode of calendering lead alloy to produce very thin lead foil as the pole plate substrate, owing to only having the pole plate of 1 millimeter soft, its mechanical strength certainly will will reduce, in order to address this problem, people are stacked alternately positive plate, dividing plate, negative plate, and are wound on together, thereby make columniform spirally wound lead acid battery, claim again the spiral wound lead acid accumulator.

In the prior art, all leave lug on the positive and negative pole plate of winding battery, bus-bar also concentrates on one side, so anode and cathode terminals has substantially still continued the thinking of planar cells also all in a direction.This grid that leaves extreme ear structure is so that the manufacture process complicated; Lug in winding process on the positive and negative pole plate easily misplaces, and has brought difficulty for the coiling operation, makes troubles also for the cast-on strap operation of back.In addition, this anode and cathode terminals is all in the structure of a direction, can cause yet in charge and discharge process that electron distributions is inhomogeneous, the problem of electrolyte stratification.Above these problems are to cause one of major reason that domestic coiled lead-acid battery can not mass production.In order further to have improved the apparent area of battery, reduce the current density that electrode is born when discharging and recharging, reduce electrochemical polarization, all increasing aspect specific energy, specific power, the charge and discharge circulation life, must change existing fabrication technology.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of takeup type both-end lead acid accumulator core that confluxes is provided.

The takeup type both-end lead acid accumulator core that confluxes comprises banded anode plate grid, anode collection end, positive bus, banded negative electrode grid, negative pole currect collecting end, negative bus-bar and dividing plate; Banded anode plate grid upper end is provided with the anode collection end, banded negative electrode grid lower end is provided with the negative pole currect collecting end, banded anode plate grid, dividing plate, banded negative electrode grid, dividing plate are stacked alternately, the placement of staggering of anode collection end and negative pole currect collecting end, coiling is formed with the cylindrical cell core of two spiral polar end face, the anode collection end accumulates positive bus, and the negative pole currect collecting end accumulates negative bus-bar, is connected to respectively polarity wiring terminal post on positive bus and negative bus-bar.

The utility model simple and reliable process, the battery of the single-ended extraction electrode of Performance Ratio is better, has improved the apparent area of battery, reduces the current density that electrode is born when discharging and recharging, and reduces electrochemical polarization, has improved specific energy, the bald charge and discharge circulation life of specific power.

Description of drawings

Fig. 1 is the takeup type both-end lead acid accumulator cored structure schematic diagram that confluxes.

Embodiment

As shown in Figure 1, the takeup type both-end lead acid accumulator core that confluxes comprises banded anode plate grid 1, anode collection end 2, positive bus 3, banded negative electrode grid 4, negative pole currect collecting end 5, negative bus-bar 6 and dividing plate 7; Banded anode plate grid 1 upper end is provided with anode collection end 2, banded negative electrode grid 4 lower ends are provided with negative pole currect collecting end 5, banded anode plate grid 1, dividing plate 7, banded negative electrode grid 4, dividing plate 7 are stacked alternately, the placement of staggering of anode collection end 2 and negative pole currect collecting end 5, coiling is formed with the cylindrical cell core of two spiral polar end face, anode collection end 2 accumulates positive bus 3, negative pole currect collecting end 5 accumulates negative bus-bar 6, is connected to respectively polarity wiring terminal post on positive bus 3 and negative bus-bar 6.

The conflux preparation method of lead acid accumulator core of takeup type both-end is: adopt and prolong lead foil that the pressure technology produces as substrate, by the continuous punching of machinery, obtain required banded grid; Banded grid both sides are respectively left the different not punching of big or small width and are strengthened frame, and banded grid is applied respectively the positive and negative electrode active material, after drying, form banded anode plate grid 1 and banded negative electrode grid 4; Banded anode plate grid 1 leave large width not punching strengthen one side of frame as anode collection end 2, banded negative electrode grid 4 leave large width not punching strengthen one side of frame as negative pole currect collecting end 5, banded anode plate grid 1, dividing plate 7, banded negative electrode grid 4, dividing plate 7 are stacked alternately, the placement of staggering of anode collection end 2 and negative pole currect collecting end 5, reeling is formed with the cylindrical cell core of two spiral polar end face; Anode collection end 2 in the cylindrical cell core is placed on is marked with on the fluted mould of molten lead liquid, and exert pressure, the convex surface that utilizes plumbous liquid surface tension to form contact fusion with spiral gathering fluid cross-section on the cylindrical cell core polar end face, and cooling is formation positive bus 3 afterwards; Negative pole currect collecting end 5 in the cylindrical cell core is placed on is marked with on the fluted mould of molten lead liquid, and exert pressure, the convex surface that utilizes plumbous liquid surface tension to form contact fusion with spiral gathering fluid cross-section on the cylindrical cell core polar end face, and cooling is formation negative bus-bar 6 afterwards.

Claims

1. takeup type both-end lead acid accumulator core that confluxes is characterized in that it comprises banded anode plate grid (1), anode collection end (2), positive bus (3), banded negative electrode grid (4), negative pole currect collecting end (5), negative bus-bar (6) and dividing plate (7); Banded anode plate grid (1) upper end is provided with anode collection end (2), banded negative electrode grid (4) lower end is provided with negative pole currect collecting end (5), banded anode plate grid (1), dividing plate (7), banded negative electrode grid (4), dividing plate (7) is stacked alternately, the placement of staggering of anode collection end (2) and negative pole currect collecting end (5), coiling is formed with the cylindrical cell core of two spiral polar end face, anode collection end (2) accumulates positive bus (3), negative pole currect collecting end (5) accumulates negative bus-bar (6), is connected to respectively polarity wiring terminal post on positive bus (3) and negative bus-bar (6).