CN202633430U

CN202633430U - Tubular positive plate of lead-acid storage battery

Info

Publication number: CN202633430U
Application number: CN2012202813629U
Authority: CN
Inventors: 唐胜群; 邓永超; 陈默; 吴涛; 战祥连
Original assignee: ZIBO TORCH ENERGY CO Ltd
Current assignee: ZIBO TORCH ENERGY CO Ltd
Priority date: 2012-06-14
Filing date: 2012-06-14
Publication date: 2012-12-26
Anticipated expiration: 2022-06-14

Abstract

The utility model belongs to the technical field of lead-acid storage batteries and particularly relates to a tubular positive plate of a lead-acid storage battery. The tubular positive plate comprises a positive plate grid, a carbon fiber calandria and a back cover, wherein a horn mouth is arranged on the positive plate grid, the horn mouth is inserted into the top part of the carbon fiber calandria and is in firm fit with the carbon fiber calandria, the back cover is arranged on the bottom of the carbon fiber calandria, and anode active substances are filled in the carbon fiber calandria. The tubular positive plate is reasonable in structure and is capable of effectively wrapping the anode active substance through the carbon fiber calandria to well prevent the anode active substance from permeating out, and the tubular positive plate is also used for solving the calandria corrosion problem caused by long time immersion of the anode in acid liquid, effectively reducing the internal resistance of the storage battery, improving the charge acceptance of the battery, prolonging the service life of the storage battery and improving the integral property of the storage battery.

Description

The tubular type positive plate of lead acid accumulator

Technical field

The utility model relates to a kind of tubular type positive plate of lead acid accumulator, belongs to the lead acid accumulator technical field.

Background technology

Tubular type active substance for positive electrode of lead-acid accumulator utilance is low excessively; One of reason is that this type accumulator internal resistance is excessive; Its main cause: the one, terylene comb or glass fiber comb resistance that storage battery uses at present are excessive, and in use caloric value is big to cause battery, and the utilance of charging current is low; The 2nd, pole plate and colloidal electrolyte adhesion are poor in the tubulose colloid storage battery, and battery failure has been quickened in the internal resistance that has further increased battery.

Secondly, the intensity difference of terylene comb damages under hot conditions especially easily, has lost the coating effect to active material, makes shorter battery life.Fact proved that especially in the battery life middle and later periods, the corrosion of comb is aging, active material can not effectively utilize etc., and factor increases the excessive probability of accumulator internal resistance greatly, has a strong impact on the performance and the useful life of storage battery.

The utility model content

According to above deficiency of the prior art, the technical problem that the utility model will solve is: provide a kind of and can effectively avoid the tubular type positive plate that accumulator internal resistance is excessive, improve the lead acid accumulator of battery use effective time and reliability.

The utility model solves the technical scheme that its technical problem adopted: the tubular type positive plate of described lead acid accumulator; It is characterized in that: comprise positive grid, carbon fiber comb and back cover; Have horn mouth on the positive grid; Horn mouth inserts carbon fiber comb top and closely cooperates with the carbon fiber comb, and the bottom of carbon fiber comb is provided with back cover, fills positive active material in the carbon fiber comb.

Before filling positive active material in the anode plate for lead acid accumulator, top and the positive electrode gate horn mouth with the carbon fiber comb closely cooperates earlier, positive active material is inserted the carbon fiber comb after, it is subsequent use bottom the carbon fiber comb, to put dummy seal.

The structure of this positive plate positive plate is changed into and charge and discharge process in can effectively combine with sulfuric acid electrolyte; Can also positive active material be wrapped up effectively through the carbon fiber comb; Therefore prevent that well positive active material from infiltrating, and because the carbon fiber comb has good acid-resistance, solved the problem of the comb corrosion that anodal long period of soaking brings through the carbon fiber comb in acid solution; Reduced the resistance of comb itself; Make lead-acid battery that the excessive possibility of the internal resistance of cell in use take place and reduce, improve the intensity of tubular type positive plate, prolong the life-span of storage battery.

The beneficial effect that the utility model had is:

This tubular type said positive-pole plate structure is reasonable; Can positive active material be wrapped up effectively through the carbon fiber comb, prevent that well positive active material from infiltrating, also solved the problem of the comb corrosion that anodal long period of soaking brings in acid solution; Effectively reduce the internal resistance of cell; Improve the charge acceptance of battery, prolong the life of storage battery, improve the storage battery overall performance.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure: 1, positive grid; 2, horn mouth; 3, positive active material; 4, carbon fiber comb; 5, back cover.

Embodiment

Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:

As shown in Figure 1; The tubular type positive plate of lead acid accumulator; Comprise positive grid 1, carbon fiber comb 3 and back cover 4, have horn mouth 2 on the positive grid 1, horn mouth 2 inserts carbon fiber comb 4 tops and closely cooperates with carbon fiber comb 4; The bottom of carbon fiber comb 4 is provided with back cover 5, fills positive active material 3 in the carbon fiber comb 4.

Powder filling in the anode plate for lead acid accumulator (promptly filling positive active material) is preceding; Carbon fiber comb 4 is sleeved on the positive grid 1; The top and the positive electrode gate horn mouth 2 of carbon fiber comb 4 are closely cooperated, positive active material 3 is inserted in the carbon fiber comb 4, put back cover 5 afterwards and seal subsequent use.Adopt the carbon fiber comb that resistance is little, intensity is big; Special advantage with anti-oxidant, acid resistance, resistance to elevated temperatures and ageing resistace; Thereby in effective clad anode active material; Reduced the resistance between positive active material and the electrolyte, the high strength of carbon fiber comb has simultaneously guaranteed the end-of-life that storage battery can not cause because of the comb breakage in length of life.

Embodiment 1

D-400BS is that subjects illustrates with the traction vehicle lead-acid battery

Change the terylene comb of the positive green plate of D-400BS into the carbon fiber comb, be cured after the powder filling, drying, channelization becomes the back to be assembled into a battery by 8 positive 9 negative utmost point group structures with the negative plate that changes into to be connected on the circuit, and it is 1.29g/cm that battery is injected density ³The electrolyte of (30 ℃) soaks and carried out initial charge in 2 hours, after initial charge finishes, above-mentioned battery is carried out battery performance detect, and compares the static internal resistance of battery with same model terylene comb and reduces 0.4m Ω, and other detect data such as following table 1.

Table 1

Embodiment 2

With tubular valve control colloid 3DBJ210 battery is that subjects illustrates

Change the terylene comb of the positive green plate of 3DBJ210 into the carbon fiber comb; Be cured after the powder filling, drying; Be assembled into a battery by 3 positive 4 negative utmost point group structures with the negative plate that changes into after channelization becomes and be connected on the circuit, battery injects the colloidal electrolyte of dioxide-containing silica 4% under vacuum state, soak and carried out initial charge in 2 hours; After initial charge finishes; Above-mentioned battery is carried out battery performance detect, compare the static internal resistance of battery with same model terylene comb and reduce 0.5m Ω, other detect data such as following table 2.

Detect data such as following table 2.

Table 2

This technology is in production application, and is respond well, can effectively reduce the internal resistance of cell, improves the charge acceptance of battery, prolongs the life of storage battery, improves the storage battery overall performance.

Claims

1. the tubular type positive plate of a lead acid accumulator; It is characterized in that: comprise positive grid (1), carbon fiber comb (4) and back cover (5); Have horn mouth (2) on the positive grid (1); Horn mouth (2) inserts carbon fiber comb (4) top and closely cooperates with carbon fiber comb (4), and the bottom of carbon fiber comb (4) is provided with back cover (5), fills positive active material (3) in the carbon fiber comb (4).