CN101504982A

CN101504982A - Ultra-thin type lead acid accumulator grating and production method thereof

Info

Publication number: CN101504982A
Application number: CNA2009100380813A
Authority: CN
Inventors: 李伟良
Original assignee: HUIZHOU DAYAWAN NUCLEAR FORCE BATTERY CO Ltd
Current assignee: HUIZHOU DAYAWAN NUCLEAR FORCE BATTERY CO Ltd
Priority date: 2009-03-20
Filing date: 2009-03-20
Publication date: 2009-08-12

Abstract

The invention discloses an ultra-thin type lead acid battery plate grid and a method for preparing the same. The plate grid comprises a grid-shaped plate grid which consists of horizontal and vertical ribs and is provided with a plate lug, and is characterized in that the thickness of the horizontal and vertical ribs is at least not less than 0.3 millimeter, and a piece of thin foil with a through hole in the middle is kept in grids of the plate grid. The method for preparing the plate grid comprises the following steps: rolling a prefabricated pure lead or lead alloy plate grid sheet material into a quasi plate grid with the plate lug and excess edges in a normal temperature or heating state by a pair of cylindrical rollers which are designed according to the size and structure requirements of the plate grid, and then cutting the excess edge materials and punching the through hole of the thin foil to form the plate grid with the plate lug; or rolling the prefabricated pure lead or lead alloy plate grid sheet material into the quasi plate grid without the plate lug, then cutting the excess rim materials and welding the plate lug to form the plate grid with the plate lug, and finally punching the through hole of the thin foil to obtain the ultra-thin type lead acid battery plate grid. Compared with the prior art, the ultra-thin type lead acid battery plate grid has the advantages of good structural strength, material saving, energy saving, high electrical property, high production rate, no environment pollution and the like.

Description

Ultra-thin type lead acid accumulator grating and manufacture method thereof

Technical field

The present invention relates to the storage battery part, particularly a kind of ultra-thin type lead acid accumulator grating and manufacture method thereof.

Background technology

Lead acid accumulator is the most traditional a kind of, wide application and the big storage battery of use amount.In lead acid accumulator in order to support the part of active material and transmission current, it is a kind of latticed lead alloy structural member that constitutes by rib anyhow, casting commonly used forms, conduct electricity very well in the hope of obtaining, big with the active material contact area, contact resistance is little, intensity is better and on-deformable result of use.Yet, prove through long-term the use: the lead alloy grid that this employing casting method is made, its rib thickness is not less than 0.8 millimeter at least, and raw materials consumption is more and intensity is relatively poor, and less with the active material contact area, contact resistance is big, is difficult to improve electrical property.In addition, productivity ratio is low during fabrication, energy consumption height, contaminated environment also.This is the weak point that existing lead acid accumulator plate grid exists always.

Summary of the invention

The objective of the invention is to overcome existing lead-acid battery grid and have above-mentioned defective, a kind of raw material and electric energy, intensity is good, electrical property is high and free from environmental pollution ultra-thin type lead acid accumulator grating and manufacture method thereof of saving is provided.

Task of the present invention realizes by this way:

A kind of ultra-thin type lead acid accumulator grating: the latticed grid that includes a band plate ear that constitutes by horizontal, vertical rib, it is characterized in that described grid is the roll-in part, the thickness of its horizontal, vertical rib is not less than 0.3 millimeter at least, in each grid of grid, also leave a slice thin foil, in the middle of thin foil, have a through hole; The manufacture method of described grid is: with prefabricated pure lead or a pair of cylindrical roller of pressing grid size and structural requirement design of lead alloy plate screen material process under normal temperature or warm-up mode, be rolled into the accurate grid on the surplus limit of band plate ear, with after the through hole of shearing unnecessary rim charge and stamping out thin foil forms the grid of band plate ear, or be rolled into the not accurate grid of band plate ear, subsequently by shearing unnecessary rim charge, the andante ear of going forward side by side welding stamps out the through hole of thin foil at last and makes.

In technique scheme, also can take following measure further perfect:

The thickness of described thin foil is 0.05～0.10 millimeter.

It is circular that described through hole is preferably, its size with apposition in two ribs be cut to mutually suitable.

The cross sectional shape of described horizontal, vertical rib is preferably rhombus.

The temperature of described warm-up mode is 100～150 ℃.

Ultra-thin type lead acid accumulator grating of the present invention and manufacture method thereof have been compared following advantage with existing casting lead acid accumulator plate grid:

1. structural strength is good.Because the grid of metal after rolling be than casting grid densification, and avoided the inner defectives such as loose, pore, cold shut layer and slag inclusion that produce of grid, therefore grid of the present invention has higher structural strength, is not easy distortion;

2. province's material.The rib thickness of the grid of casting is not less than 0.8 millimeter at least, adopts grid of the present invention, can save raw material 30～50% because of rib thickness reduces under same specification, greatly reduces cost;

3. raising electrical property.Owing in the grid of grid, leave the thin foil of band through hole, grid and active material contact area are increased, the minimizing contact resistance, storage battery with equal current discharge situation under, output voltage can improve 0.1～0.2V.

4. saving electric energy.Owing to adopt the cold working manufacturing, save energy consumption greatly;

5. the productivity ratio height can improve nearly more than 30%;

6. production process is free from environmental pollution;

Description of drawings

Fig. 1 is the front view of a kind of ultra-thin type lead acid accumulator grating embodiment.

Fig. 2 is along the cutaway view Amplified image of A-A line among Fig. 1.

Embodiment

The invention will be further described below in conjunction with accompanying drawing:

With reference to Fig. 1, a kind of ultra-thin type lead acid accumulator grating includes the latticed grid 3 of a band plate ear 2 that is made of horizontal, vertical rib 1.Rib 1 thickness of grid of the present invention is not less than 0.3 millimeter at least, and concrete size is decided on the grid specification, generally reduces 30～50% than same specification casting grid, and present embodiment is 0.5 millimeter.The cross sectional shape of described rib 1 can be circle, square, rectangle, polygon, rhombus, trapezoidal, triangle, arc limit shape etc., usually with rhombus for well.The sectional area of horizontal, vertical rib can be identical, can also be different, decide on the grid structure.The present invention also leaves a slice thin foil 4 in the grid of grid, the thickness of this thin foil 4 is 0.05～0.10 millimeter, and concrete size is decided on the grid size, generally with 0.08 millimeter for well, present embodiment is 0.06 millimeter.Have a through hole 5 in thin foil 4, this through hole 5 can be Any shape, and present embodiment is circular, its size with grid in two ribs 1 tangent.

This ultra-thin type lead acid accumulator grating is to make like this:

Embodiment 1, prefabricated pure stereotype screen material is passed through a pair of cylindrical roller of pressing grid size and structural requirement design at normal temperatures, be rolled into the accurate grid 3 on band plate ear 2 and surplus limit, with after shear will be unnecessary rim charge remove the grid 3 of a band plate ear 2 of formation, stamp out the through hole 5 in the thin foil 4 at last and make.

Embodiment 2, with a pair of cylindrical roller of pressing grid size and structural requirement design of prefabricated lead alloy plate screen material process under 100～150 ℃ of temperature, be rolled into the not accurate grid 3 of band plate ear 2, shear unnecessary rim charge subsequently, and plate ear 2 is welded in the grid 3 of making band plate ear 2 on the grid 3, stamp out the through hole 5 in the thin foil 4 at last and make.

6 is the plate pin in the accompanying drawing, and for the grid 3 that has plate pin 6, this plate pin 6 can form in roll-in.

Claims

1. ultra-thin type lead acid accumulator grating and manufacture method thereof, this grid includes the latticed grid (3) of a band plate ear (2) that is made of rib (1) anyhow, it is characterized in that described horizontal stroke, the thickness of perpendicular rib (1) is not less than 0.3 millimeter at least, in the grid of grid (3), also leave a slice thin foil (4), in the middle of book paper tinsel (4), have a through hole (5), the manufacture method of described grid (3) is: with prefabricated pure lead or a pair of cylindrical roller of pressing grid size and structural requirement design of lead alloy plate screen material process under normal temperature or warm-up mode, be rolled into the accurate grid on band plate ear (2) and surplus limit, the through hole (5) of shearing unnecessary rim charge subsequently and stamping out in the book paper tinsel (4) is made the grid (3) of band plate ear (2), or be rolled into the not accurate grid of band plate ear (2), shear unnecessary rim charge subsequently, the andante ear (2) of going forward side by side welding stamps out the through hole (5) in the thin foil (4) at last.

2. grid according to claim 1 and manufacture method thereof is characterized in that the thickness of horizontal, vertical rib (1) is not less than 0.3 millimeter at least.

3. grid according to claim 1 and manufacture method thereof, the cross sectional shape that it is characterized in that described horizontal, vertical rib (1) is a rhombus.

4. grid according to claim 1 and manufacture method thereof is characterized in that the thickness of described thin foil (4) is not less than 0.05 millimeter at least.

5. grid according to claim 1 and manufacture method thereof is characterized in that described through hole (5) for circular, and its size is tangent with interior two ribs (1) of grid.

6. grid according to claim 1 and manufacture method thereof, the temperature that it is characterized in that described warm-up mode is 100～150 ℃.