CN2225723Y

CN2225723Y - Sealed lead acid secondary accumulator without maintenance

Info

Publication number: CN2225723Y
Application number: CN95233119U
Authority: CN
Inventors: 江中道
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-15
Filing date: 1995-01-15
Publication date: 1996-04-24
Anticipated expiration: 2005-01-15

Abstract

The utility model belongs to a tube type sealed lead-acid accumulator without maintenance charging and discharging, comprising a cylindrical plastic casing, a cover plate, a positive and a negative electrodes and the electrolyte. The structure of the accumulator comprises the core of the positive electrode, the active substance of the positive electrode, a separating tube, a separator, the electrolyte, the slab lattice of the negative electrode, the active substance of the negative electrode, the casing of the accumulator from the inner layer to the outer layer. The accumulator forms the sealed structure, the upper part of the accumulator is provided with a sealed cover, and the sealed cover is provided with a gas outlet valve. The utility model relieves the trouble of servicing frequently for having good self protective performance, the service life is long, the number of times of the charge and discharge cycle reaches 300, and the utility model can be used by interchanging with the dry battery commonly called number 1, number 2 and number 5.

Description

The sealing maintenance-free lead acid secondary accumulator battery

The utility model belongs to a kind of chargeable dry cell.

Having many uses of dry cell, but the useful life of general dry battery is short, for disposable, in case electricity uses up, just become refuse, need improve, thereupon, produced various chargeable dry cells, primary clustering comprises both positive and negative polarity, electrolyte and shell, wherein, positive and negative very column type than advanced rechargeable cell, as application number is 90207212, and name is called cylindrical lead acid accumulator, just belongs to this class formation.This dry cell is longer useful life, can repeatedly discharge and recharge, and receives praises from customers, and still, dry cell is inside and outside unimpeded, need careful maintenance during use, and electrolyte is a liquid electrolyte, easily flows, and has shortcomings such as unstable properties.

The purpose of this utility model is to provide a kind of maintenance-free lead acid secondary accumulator battery, stable performance, long service life.

The purpose of this utility model can be realized by following scheme:

The sealing maintenance-free lead acid secondary accumulator battery, comprise cylindrical plastic shell, cover plate, positive and negative electrode, the several essential parts of electrolyte, battery structure is followed successively by positive pole piece, positive electrode active material, isolated tube, spacer and electrolyte, negative electrode grid and negative electrode active material, battery case from the internal layer to the skin, this battery is a hermetically-sealed construction, one seal cover is arranged at the top of battery, and an air outlet valve is arranged on the seal cover.

Aforesaid secondary accumulator battery, its air outlet valve are that escape pipe covers a soft rubber cap, and a top cover is arranged on the rubber cap.Storage battery in use can open air outlet valve automatically when cell internal pressure is high and give vent to anger, and extraneous air can not enter inside battery, and is oxidized to prevent battery pole plates, thereby uses battery self to have barrier propterty.

Aforesaid secondary accumulator battery, a reservoir is arranged at its top.It can store the absorption of unnecessary electrolyte, and can discharge the electrolyte of storage automatically, thereby has stored more electrolyte, has guaranteed the stable of electrical property and increases the service life.

Aforesaid secondary accumulator battery, the airtight isolation of positive active material, isolation is by anodal capping, anodal back cover, and the terylene fiber tube is finished, thus, active material is loosening, does not come off, and the useful life that makes battery is than one times of the length of common pole plate, the charge and discharge cycles number of times reaches 300 times, and can not produce short circuit phenomenon.

The purpose of this utility model can also realize by following scheme:

Used electrolyte is a colloidal electrolyte, is the Ludox electrolyte, and the energy stationary positioned is not trickled, and has improved electrolytical stability.Wherein be added with an amount of phosphoric acid, increase conductivity, can prevent dry and cracked again, and improved the condition of inside battery gas recombination, the gas that inside battery is produced is combined into water automatically, thereby battery in use need not be tame sour, need not add water, have the self maintained performance.

In the utility model, anodal lead for retractable pencil is still cast with the low-stibium multicomponent element alloy, and negative plate is still cast with plumbous calcium or lead strontium alloy, and such alloy material makes the interior gas amount of separating out of battery few, and water consumption is few, and self-discharge rate is low.

The utility model is described in further detail to reach embodiment in conjunction with the accompanying drawings down.

Fig. 1, structural representation of the present utility model also are a most preferred embodiment.

Among the figure, 1 positive terminal, 2 battery cover boards, 3 give vent to anger Capsule, 4 seal covers, 5 hydraulic accumulators, 6 anodal cappings, 7 anodal lead for retractable pencils, 8 positive electrode active materials, 9 terylene fiber tubes, 10 spacers and electrolyte, 11 negative electrode grids, 12 negative electrode active materials, 13 battery cases, 14 anodal back covers, 15 negative pole metal base plates.

As shown in FIG., battery structure from the internal layer to the skin successively as spacer and electrolyte 10, lead-calcium alloy negative electrode grid 11, negative electrode active material 12 and the battery case 13 of positive pole piece 7, positive electrode active material 8, terylene isolated tube 9, polypropylene superfine fiber plate and polypropylene superfine paulin pine cellucotton and usefulness; Positive electrode active material is by anodal capping 6, anodal back cover 14 and the 9 airtight isolation of terylene fiber tube; The upper reservoir 5 of battery is made by the polypropylene cotton material of paulin pine, is fixed with air outlet valve on the seal cover 4, and air outlet valve is escape pipe loam cake one a soft rubber cap 3; Battery cover board 2 and battery case 13 usefulness ABS engineering plastics form, and the top of battery is the positive terminal 1 that the copper cap is housed, and the bottom of battery is by negative pole metal base plate back cover.

The utlity model has following advantage:

(1), this battery adopts hermetically-sealed construction, the self-protection performance is good, has removed often dimension from The trouble of protecting.

(2), spacer and colloidal electrolyte in this battery, stable performance, and making The gas that inside battery produces can be combined into automatically in inside water, thereby battery is at practical process In without acid adding, need not add water. Removed simultaneously the trouble of often safeguarding from.

(3), the airtight isolation of positive electrode material in this battery, active material is loosening, do not come off, Make battery than one times of the length of common pole plate, the charge and discharge cycles number of times reaches 300 times, And can not cause short circuit phenomenon between positive and negative electrode in the use procedure.

(4), this battery cost is low, applied range, can with No. 1 that is commonly called as, No. 2, No. 5 The dry cell Alternate.

Claims

1, a kind of sealing maintenance-free lead acid secondary accumulator battery, comprise cylindrical plastic shell, cover plate, positive and negative electrode, the several essential parts of electrolyte, battery structure is followed successively by positive pole piece, positive electrode active material, isolated tube, spacer and electrolyte, negative electrode grid and negative electrode active material, battery case from the internal layer to the skin, it is characterized in that this battery is a hermetically-sealed construction, one seal cover is arranged at the top of battery, and an air outlet valve is arranged on the seal cover.

2, sealing maintenance-free lead acid secondary accumulator battery according to claim 1 is characterized in that air outlet valve is that escape pipe covers a soft rubber cap, has a top cover on the rubber cap.

3, sealing maintenance-free lead acid secondary accumulator battery according to claim 1 is characterized in that a reservoir is arranged at the top of battery.

4, sealing maintenance-free lead acid secondary accumulator battery according to claim 1 is characterized in that the positive active material seal isolation.

5, sealing maintenance-free lead acid secondary accumulator battery according to claim 4 is characterized in that positive active material is by anodal capping, anodal back cover, the airtight isolation of terylene fiber tube.

6, sealing maintenance-free lead acid secondary accumulator battery according to claim 1 is characterized in that electrolyte is a colloidal electrolyte.