CN2400910Y

CN2400910Y - Valve control sealed lead-acid accumulator

Info

Publication number: CN2400910Y
Application number: CN99249522U
Authority: CN
Inventors: 裴正录; 张永光
Original assignee: TAIWEI POWER SUPPLY CO Ltd JILIN CITY
Current assignee: TAIWEI POWER SUPPLY CO Ltd JILIN CITY
Priority date: 1999-10-20
Filing date: 1999-10-20
Publication date: 2000-10-11
Anticipated expiration: 2009-10-20

Abstract

The utility model relates to a valve-control sealed lead-acid battery. A pole group formed by successively connecting a plurality of negative plates, partition plates and positive plates is arranged in a battery slot. After the positive and the negative plates are connected with respective busbars, the positive and the negative plates are separately connected with positive and negative terminals and terminals. A safety valve is arranged in an explosion-proof device on a battery cover which is sealed and fixed with the battery slot. The utility model is characterized in that the existing constituents for composing lead pastes of the positive and the negative plates are changed, spacers of equal thicknesses are sheathed and arranged on the positive and the negative plates, and a bottom plate is arranged at the bottom in the battery slot. The utility model has the advantages of even distribution of electrolyte amount, even internal resistance, high air sealing and reacting efficiency, favorable cold-starting performance, long service life, etc.

Description

Valve controlled sealed lead-acid accumulator

A kind of valve controlled sealed lead-acid accumulator belongs to field of power supplies.

The utmost point group that existing valve controlled sealed lead-acid accumulator mainly is made up of the dividing plate of several positive plates, negative plate and two interpolars is positioned in the plastic battery groove, is equipped with safety valve and constitutes on battery cover.Because the content of the graphite of formation negative plate lead plaster, sulfuric acid, sodium lignosulfonate is on the low side, and water is higher, the content of the sulfuric acid of formation positive plate lead plaster is on the low side, and water is higher, and do not have graphite, the porosity of pole plate is low, and the active material of negative plate shrinks in charge and discharge process gradually, electrical property is relatively poor, particularly the discharging at low temperature and high multiplying power poor performance; In manufacture process, need apply certain pressure to utmost point group, because the dividing plate of positive and negative two interpolars is to soak the varicosity material that contains electrolyte, when exerted pressure in utmost point group two ends, big, the swollen rate that rises of the dividing plate decrement at utmost point group two ends is little, and little, the swollen rate that rises of dividing plate decrement at utmost point group middle part is big, like this, when electrolyte immersion utmost point group time, the electrolyte content skewness, the internal resistance of cell distributes also inhomogeneous, charging current density height in latter stage, the oxygen generation is many, and oxygen is difficult to guarantee that the air seal reaction efficiency is low by the passage of positive pole to negative pole; Also because utmost point group directly contacts with the battery case inner bottom surface, and the cavity volume of electrolyte is not stored in the bottom in battery case, the useful life of battery is lower.

The purpose of this utility model is prior art is improved, provide a kind of by changing the component content of the lead plaster that constitutes positive and negative pole plate, make the porosity height of pole plate, utmost point group electrolyte inside amount is evenly distributed, and the internal resistance of cell is evenly distributed, air seal reaction efficiency height, good electrical property, particularly the discharging at low temperature and high multiplying power performance is good, and cold-starting is fast, the valve controlled sealed lead-acid accumulator of long service life.

The purpose of this utility model is realized by following technical scheme: a kind of valve controlled sealed lead-acid accumulator, it comprises: battery case (1), in battery case (1), be provided with by several negative plates (9), dividing plate (10), positive plate (11), dividing plate (10), the utmost point group that negative plate (9) contacts successively and forms, negative plate (9) is by 100 parts lead powder, graphite, sulfuric acid, sodium lignosulfonate, 0.97-1.03 the barium sulfate of part, 0.15-0.25 the fiber of part, water mixes the lead plaster of forming, connecing the common process manufacturing constitutes, positive plate (11) is by 100 parts lead powder, sulfuric acid, 0.15-0.25 the fiber of part, water mixes the lead plaster of forming, connecing the common process manufacturing constitutes, several negative plates (9) are connected with bus-bar (17), bus-bar (17) is connected with negative terminal (15), negative terminal (15) is connected with negative binding post (16), several positive plates (11) are connected with bus-bar (14), bus-bar (14) is connected with positive terminal (7), positive terminal (7) is connected with positive binding post (6), just, negative terminal (7,15), just, negative binding post (6,16) all be fixed on the battery cover (2), in the explosion-protection equipment (4) on battery cover (2) safety valve (5) is set, it is characterized in that: the lead powder that constitutes negative plate (9) lead plaster, graphite, sulfuric acid, sodium lignosulfonate, barium sulfate, fiber, water, by 100: 0.2-0.3: 3.8-4.2: 0.13-0.23: 0.97-1.03: 0.15-0.25: 12.5-13.5 proportioning (weight part ratio), constitute the lead powder of positive plate (11) lead plaster, sulfuric acid, fiber, water, also add graphite, by 100: 4.3-4.7: 0.15-0.25: 15.5-16.5: 0.2-0.3 proportioning (weight part ratio) is nested with the pad (8 of equal thickness in positive plate (11) or negative plate (9) upper and lower, 12).

Bottom in battery case (1) is provided with backing plate (13), on backing plate (13) utmost point group is set.

Valve controlled sealed lead-acid accumulator of the present utility model is compared with existing similar storage battery, because the content of the graphite of the utility model by improve constituting the negative plate lead plaster, sulfuric acid, sodium lignosulfonate, reduce the content of water, by improving the sulfuric acid content that constitutes the positive plate lead plaster, reduce the content of water and add graphite, improved the porosity of pole plate, prevented the gradually contraction of active material in charge and discharge process of negative plate, improve electrical property, particularly improved the discharging at low temperature and high multiplying power performance; Owing to be nested with the pad of equal thickness in positive plate or negative plate upper and lower, dividing plate between two-plate soaks the swollen rate that rises that contains electrolyte and equates, utmost point group electrolyte inside amount is evenly distributed, the internal resistance of cell is evenly distributed, charging current density in latter stage is low, the oxygen generation is few, can guarantee that oxygen by the passage of positive pole to negative pole, has improved the air seal reaction efficiency; Also, make battery case form certain cavity volume, in cavity volume, can store electrolyte in right amount,, prolonged the useful life of battery to remedy the deficiency of the electrolyte that dehydration causes apart from utmost point group bottom because bottom in battery case is provided with backing plate.

The utility model is described in further detail to utilize embodiment shown in the drawings below.

Fig. 1 looks schematic diagram for the structure master of valve controlled sealed lead-acid accumulator of the present utility model.

Fig. 2 takes the schematic top plan view of protective cover (3) for Fig. 1.

Fig. 3 is the schematic side view of Fig. 1.

Fig. 4 is the local enlarged diagram of I among Fig. 1.

Fig. 5 is that the A of Fig. 4 is to schematic diagram.

With reference to Fig. 1-5, the backing plate (13) of battery case (1) and battery case (1) inner bottom part adopts plastics one-body molded through mold pressing.Negative plate (9) is by lead powder, graphite, sulfuric acid, sodium lignosulfonate, barium sulfate, fiber, water, by 100: 0.2-0.3: 3.8-4.2: 0.13-0.23: 0.97-1.03: 0.15-0.25: the lead plaster that 12.5-13.5 proportioning (weight part ratio) is formed constitutes through conventional technology manufacturing.Positive plate (11) is by lead powder, sulfuric acid, fiber, water, graphite, and by 100: 4.3-4.7: 0.15-0.25: 15.5-16.5: the lead plaster that 0.2-0.3 proportioning (weight part ratio) is formed constitutes through conventional technology manufacturing.Go up at the backing plate (13) of battery case (1) inner bottom part the utmost point group that the pad (8,12), dividing plate (10), the negative plate (9) that are nested with equal thickness by several negative plates (9), dividing plate (10), positive plate (11), in the upper and lower of positive plate (11) contacts successively and form is set.Several negative poles (9) are connected with negative terminal (15) with after bus-bar (17) is connected again, and negative terminal (15) is connected with negative binding post (16) again.Several positive plates (11) are connected with positive terminal (7) with after bus-bar (14) is connected again, and positive terminal (7) is connected with positive binding post (6) again.Positive and negative pole (7,15), positive and negative binding post (6,16) all is fixed on the battery cover (2), battery cover (2) and battery case (1) sealing and fixing.Explosion-protection equipment (4) is set on battery cover (2), safety valve (5) is set in explosion-protection equipment (4).On battery cover (2), be provided with protective cover (3).

Claims

1, a kind of valve controlled sealed lead-acid accumulator, it comprises: battery case (1), in battery case (1), be provided with by several negative plates (9), dividing plate (10), positive plate (11), dividing plate (10), the utmost point group that negative plate (9) contacts successively and forms, negative plate (9) is by 100 parts lead powder, graphite, sulfuric acid, sodium lignosulfonate, 0.97-1.03 the barium sulfate of part, 0.15-0.25 the fiber of part, water mixes the lead plaster of forming, connecing the common process manufacturing constitutes, positive plate (11) is by 100 parts lead powder, sulfuric acid, 0.15-0.25 the fiber of part, water mixes the lead plaster of forming, connecing the common process manufacturing constitutes, several negative plates (9) are connected with bus-bar (17), bus-bar (17) is connected with negative terminal (15), negative terminal (15) is connected with negative binding post (16), several positive plates (11) are connected with bus-bar (14), bus-bar (14) is connected with positive terminal (7), positive terminal (7) is connected with positive binding post (6), just, negative terminal (7,15), just, negative binding post (6,16) all be fixed on the battery cover (2), in the explosion-protection equipment (4) on battery cover (2) safety valve (5) is set, it is characterized in that: the lead powder that constitutes negative plate (9) lead plaster, graphite, sulfuric acid, sodium lignosulfonate, barium sulfate, fiber, water, by 100: 0.2-0.3: 3.8-4.2: 0.13-0.23: 0.97-1.03: 0.15-0.25: 12.5-13.5 proportioning (weight part ratio), constitute the lead powder of positive plate (11) lead plaster, sulfuric acid, fiber, water, also add graphite, by 100: 4.3-4.7: 0.16-0.25: 15.5-16.5: 0.2-0.3 proportioning (weight part ratio) is nested with the pad (8 of equal thickness in positive plate (11) or negative plate (9) upper and lower, 12).

2, valve controlled sealed lead-acid accumulator according to claim 1 is characterized in that: the bottom in battery case (1) is provided with backing plate (13), on backing plate (13) utmost point group is set.