CN201812881U

CN201812881U - Lead-acid storage battery

Info

Publication number: CN201812881U
Application number: CN2010205418228U
Authority: CN
Inventors: 徐克成; 陈军; 舒红群
Original assignee: CHANGXING CHANGSHENG ELECTRIC Co Ltd
Current assignee: CHANGSHENG ELECTRIC JIANGSU CO.,LTD.
Priority date: 2010-09-26
Filing date: 2010-09-26
Publication date: 2011-04-27
Anticipated expiration: 2020-09-26

Abstract

The utility model discloses a lead-acid storage battery, which comprises a battery box consisting of a battery jar with a notch and a jar cover, wherein the length, width and height of the battery box are between 150 and 152 millimeters, between 98 and 100 millimeters, and between 98 and 100 millimeters respectively; the notch is over against a side outer wall face with the smallest area on the battery box; five parallel spacers are arranged in the battery jar and partition the cavity of the battery jar into six jar chambers; a polar group consisting of a polar plate and a clapboard is arranged in each jar chamber; and the width of the polar plate is between 65 and 95 millimeters, and the length of the polar plate is between 100 and 130 millimeters. In the storage battery, a large-sized polar plate is adopted under the condition of not changing the overall dimension of the battery, so that the sectional area and the surface area of a slab lattice are increased by 20 percent, the specific surface of an active substance is increased, the current density of the polar plate is lowered and current is distributed more uniformly.

Description

A kind of lead acid accumulator

Technical field

The utility model relates to a kind of storage battery, relates in particular to a kind of lead acid accumulator.

Background technology

The develop rapidly that the each technological innovation of lead acid accumulator brings industry, electric boosted automobile-used lead acid accumulator are develop rapidlys after experience technological innovation for the second time, its use amount maximum be two kinds of size battery of 6-DZM-10,6-DZM-12.Traditional mentality of designing is to have selected the 12V12Ah battery case for use according to compacted accumulator technical standard at that time, designs battery of electric vehicle pole plate, utmost point group etc. then and produces battery of electric vehicle.Just forming industry standard after operation a period of time on the market.Draw through the checking of market for many years: 6-DZM-10,6-DZM-12 battery biggest quality problem are to have in the whole Battery pack that singly only fall behind phenomenon, mileages of continuation is short, useful life is long etc.Different manufacturers the shared ratio of various quality problems occurs and have certain difference.In brief, there is tangible technological deficiency in popular two kinds of size battery of electric motor car 6-DZM-10,6-DZM-12 on the present market.

Existing battery size is long to be 151mm, wide is 99mm, two kinds of size battery height are variant slightly, pole plate is small pieces production, is coated with cream again by die casting and makes, and pole plate all is 9 disposable in flakes productions, the quantity of polar plate that single is produced is more, the efficient height, but the consistency of pole plate is difficult to control, increases the control difficulty of the consistency of performance of battery.Battery case is 2 * 3 structure, and the battery assembling is tighter, does not also have what gap between pole plate and the battery case, causes adding colloidal electrolyte and be difficult to realize on 6-DZM-10 and 6-DZM-12 battery.

Existing 6-DZM-10,6-DZM-12 battery of electric vehicle adopt 12V, the 12Ah battery case of compacted accumulator standard.Because the restriction of battery case, the general height of the size of battery pole plates is 68-74mm, and wide is 38-44mm.This pole plate size has caused the current density of pole plate excessive, and CURRENT DISTRIBUTION is inhomogeneous.Simultaneously, there is certain problem in both positive and negative polarity active material ratio, and the acid amount has not enough possibility under the design of lean solution formula.Thereby the specific energy that causes battery not high (about 35Wh/Kg), cycle life is below 500 times.

Summary of the invention

The utility model provides a kind of lead acid accumulator, under the prerequisite that does not change battery overall dimension, changes the pole plate size, has solved that existing polar plate of lead acid storage battery current density is excessive, the uneven problem of CURRENT DISTRIBUTION.

A kind of lead acid accumulator, comprise the battery case of forming by the battery case and the groove lid of trough of belt mouth, the length of battery case is respectively 150～152mm, 98～100mm, 98～100mm, one side outside wall surface of described notch area minimum on the battery case, be provided with 5 partitions that are parallel to each other in the described battery case, partition is separated into 6 groove chambers with the battery case inner chamber, described each groove is indoor to be equipped with the utmost point group who is made up of pole plate and dividing plate, the width of pole plate is 65～95mm, and length is 100～130mm.

The ratio of described pole plate length and width is 1.2～1.4.

Described groove lid comprises the top board of capping notch and the shirt rim that cooperates with the notch edge, and the outer wall of shirt rim is provided with splicing ear.Described splicing ear is arranged on the outside wall surface of battery case area maximum.

Each utmost point group positive plate of described battery is that 2～4, negative plate are 2～4.And the utmost point of non-traditional battery of electric vehicle is mined massively with 7 positive plates, 8 negative plates.Described utmost point group thickness is 10～15mm.

The utility model storage battery adopts the large scale pole plate under the condition that does not change battery overall dimension, the specific surface of the sectional area of increase grid and surface area 20%, increase active material makes plate current density to reduce, and CURRENT DISTRIBUTION can be more even.

The pole plate of the utility model lead acid accumulator is bigger than the area of traditional pole plate, makes pole plate and becomes 4 in flakes in flakes by 9, and the quantity of once producing pole plate reduces, and has improved the consistency of pole plate, thereby has improved the lead acid accumulator consistency of performance.

The utmost point group of the utility model lead acid accumulator and the gap of groove chamber increase, and colloidal electrolyte can add inside battery smoothly, has avoided insufficient electrolyte.

Description of drawings

Fig. 1 is the structural representation of the utility model accumulator box;

Fig. 2 is the structural representation of accumulator box A direction shown in Figure 1;

Fig. 3 is the structural representation of accumulator box B direction shown in Figure 1;

Fig. 4 opens front view behind the groove lid for the utility model storage battery;

Fig. 5 is the structural representation of the utility model accumulator pole group;

Fig. 6 is a utmost point group's shown in Figure 5 end view;

Fig. 7 is a utmost point group's shown in Figure 5 vertical view.

Embodiment

As shown in the figure, a kind of lead acid accumulator, comprise that the specification of the battery case 3 of this storage battery is 6-DZM-10 or 6-DZM-12 by battery case 1 and groove lid 2 battery cases of forming that are roughly cuboid 3, its length is respectively 149～151mm, 98～100mm, 98～100mm.

Battery case 1 is provided with notch, one side outside wall surface of this notch area minimum on the battery case 3, groove lid 2 covers on notch, it comprises the top board 21 of notch capping and the shirt rim 22 that cooperates with the notch edge, shirt rim 22 outer walls are provided with splicing ear 7, and this splicing ear 7 is positioned on the side outside wall surface of battery case area maximum.

Be provided with five partitions that are parallel to each other 4 in the battery case 2, partition 4 evenly is separated into six groove chambers 5 with the inner chamber of battery case 2, in each groove chamber 5 utmost point group 6 is housed, each utmost point group is made up of positive plate 61, negative plate 62 and dividing plate 63 (dividing plate is the AGM dividing plate), the lug 64 of all positive plates and negative plate is welded together by bus-bar 65 respectively among each utmost point group, and six utmost point groups 6 are cascaded then.

The quantity of positive plate 61 is 2, and the quantity of negative plate 62 is 3, and the length of positive plate is 120mm, and width is 86mm, and the length of negative plate is 120mm, and width is 86mm.Width can be adjusted to 65～95mm with plate width as required, and length can be adjusted to 100～130mm, and the length of negative plate equals the length and the block board thickness sum of positive plate substantially.Length-width ratio preferably is controlled at 1.2～1.4, and final whole utmost point group thickness is roughly at 10～15mm.

The lead acid accumulator (Zhejiang Benetton Electrosource, Inc.) of lead acid accumulator of the present invention and commercially available same specification is carried out the performance comparison, the used positive plate of the foregoing description storage battery, negative plate alloy, active material and electrolyte ratio are all identical with the comparison product, the comparison product adopts traditional accumulator structure, and it is as follows specifically to compare situation:

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Claims

1. lead acid accumulator, comprise the battery case of forming by the battery case and the groove lid of trough of belt mouth, the length of battery case is respectively 150～152mm, 98～100mm, 98～100mm, it is characterized in that: a side outside wall surface of described notch area minimum on the battery case, be provided with 5 partitions that are parallel to each other in the described battery case, partition evenly is separated into 6 groove chambers with the battery case inner chamber, described each groove is indoor to be equipped with the utmost point group who is made up of pole plate and dividing plate, the width of pole plate is 65～95mm, and length is 100～130mm.

2. lead acid accumulator according to claim 1 is characterized in that: the ratio of described pole plate length and width is 1.2～1.4.

3. lead acid accumulator according to claim 1 is characterized in that: described groove lid comprises the top board of capping notch and the shirt rim that cooperates with the notch edge, and the outer wall of shirt rim is provided with splicing ear.

4. lead acid accumulator according to claim 3 is characterized in that: described splicing ear is arranged on the side outside wall surface of battery case area maximum.

5. lead acid accumulator according to claim 1 is characterized in that: described pole plate comprises positive plate and 2～4 negative plates of 2～4.

6. lead acid accumulator according to claim 1 is characterized in that: described positive plate length and block board thickness sum equal negative plate length.

7. lead acid accumulator according to claim 1 is characterized in that: described utmost point group thickness is 10～15mm.