Method for producing copper sheet grating of lead acid battery, and dedicated die

A technology for lead-acid batteries and production methods, which is applied in the direction of lead-acid battery electrodes, electrode carriers/collectors, etc., which can solve the problems of thin lead-coated layers, high production costs, and poor compactness, and achieve uniform thickness and good compactness , the effect of high pass rate

Inactive Publication Date: 2006-07-05
苗维新
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of thin coating lead layer, poor compactness and high production cost in the above-mentioned copper grid production method, and p

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  • Method for producing copper sheet grating of lead acid battery, and dedicated die
  • Method for producing copper sheet grating of lead acid battery, and dedicated die
  • Method for producing copper sheet grating of lead acid battery, and dedicated die

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Embodiment Construction

[0023] The invention adopts a casting method to produce the copper grid of a lead-acid battery, and the specific production method is as follows:

[0024] 1. Install a number of positioning lead rings 13 on the copper mesh 12 as the substrate. The number of positioning lead rings 13 is not limited and is determined according to the area of ​​the copper mesh 12. If the area of ​​the copper mesh 12 is small, it can be placed on the copper mesh 12. It is sufficient to install four positioning lead rings 13 around the circumference, such as Figure 5 with Figure 6 As shown, if the area of ​​the copper mesh 12 is large, it is necessary to install a plurality of positioning lead rings 13 around and in the middle of the copper mesh 12. The thickness of the positioning lead rings 13 is the same as the thickness of the lead layer of the copper grid. The function of 13 is to position the copper mesh 12 when the copper mesh 12 is placed in the mold, and restrict the movement of the copper me...

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Abstract

Copper sheet grating of lead acid battery is produced from casting method. The method includes steps: installing lead rings for positioning copper web as basal body; the thickness of the ring is same as the thickness of lead layer of cladding copper sheet grating; placing the copper web with rings installed to a die; heating the die to 328-600 deg.C, casting lead liquation into the die; after lead liquation and the die are cooled, the blank of copper sheet grating is taken out; cleaning out burrs of air flue on the blank; planishing redundant lead at positioning pinholes on the blank, and closing pinholes so as to produce product of copper sheet grating. The dedicated die includes two pieces of relevant dies. Being in shape same to copper web, the groove in size larger than section of copper web is located on junction plane. There are pins for positioning copper web on two pieces of die to fix copper web at cavity center of die.

Description

Technical field [0001] The invention belongs to the field of battery production, and particularly relates to a method for producing a copper grid of a lead-acid battery and a special mold. Background technique [0002] With the development of economy and the progress of science and technology, the use of storage batteries has become more and more extensive, and the amount of use has become larger and larger. In particular, lead-acid batteries, although invented more than a hundred years ago, still occupy an absolute advantage in the market share of secondary batteries, and play an irreplaceable important role in various sectors of the national economy. [0003] As we all know, the theoretical specific energy of lead-acid batteries is 170W·h / kg, but in the actual process, most batteries can only release energy of 30-50W·h / kg. On the one hand, this difference is caused by the higher utilization rate of active materials. Low is caused by low, on the other hand, it is caused by the q...

Claims

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Application Information

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IPC IPC(8): H01M4/16H01M4/68H01M4/73
CPCY02E60/126Y02E60/10
Inventor 苗维新张全家
Owner 苗维新
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