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Alloy material of battery positive plate grid and its preparation method

An alloy material and battery technology, applied in the direction of electrode carrier/current collector, can solve the problems of high cost and increase battery manufacturing cost, and achieve the effects of reducing oxidation loss, avoiding cold and hot cracking, and grain refinement

Inactive Publication Date: 2006-06-28
赵恒祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of selenium (Se) is high, and the price per ton is about 1 million, which increases the manufacturing cost of batteries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] raw material:

[0033] (1) The antimony content of reduced lead is greater than 1.8%, and the zinc content is less than 0.001%.

[0034] (2) High antimony alloy (antimony content above 30%) (prepared according to actual antimony content).

[0035] (3) Arsenic for industrial use with an arsenic content above 99% (prepared according to actual arsenic content).

[0036] (4) Industrial tin with a tin content above 97% (prepared on demand according to the actual tin content).

[0037] making process:

[0038] [1] Spectral analysis of the content of various elements in reduced lead and high antimony lead to determine the amount of various raw materials. If the copper content in the spectral analysis results exceeds the standard, preparations for copper removal should be made.

[0039] [2] When the copper in the reduced lead exceeds the parameter requirements, the copper removal operation is required. The copper removal method is as follows: put the reduced lead into the po...

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PUM

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Abstract

This invention discloses an alloy material of a battery positive grating and its preparation method, in which, said material is composed of Sb: 3.2-3.3wt%, As: 0.16-0.18%, Sn: 0.10-0.12%, Cu:0.04-0.06%, S: 0.004-0.005% and Pb, the preparation method includes: melting recovered Pb to solution, starting up a mixer when the temperature is controlled at 450 minus or plus 5deg.C to add lead of high Sb, adding As at 620 plus or minus 5deg.C and adding S at 580-600deg.C.

Description

technical field [0001] The invention relates to an alloy material for accumulator, its composition and preparation method. technical background [0002] At present, the five-element alloys used by other manufacturers are composed of lead (Pb), antimony (Sb), arsenic (Sn), tin (Sn), and selenium (Se) is used as a nucleating agent, which can refine the grain . Cold cracking and hot cracking during casting are also reduced to varying degrees, but it is difficult to avoid. [0003] Only one nucleating agent selenium (Se) is used, which is first precipitated and nucleated in a period of time when the lead is solidified, so that there is no nucleating agent when the lead is solidified in other periods, and the resulting castings are rough and prone to hot and cold cracks Phenomenon. The cost of selenium (Se) is high, and the price per ton is about 1 million, which increases the manufacturing cost of the battery. Contents of the invention [0004] The object of the present in...

Claims

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Application Information

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IPC IPC(8): H01M4/66C22C11/00C22C1/02
CPCY02E60/12Y02E60/10
Inventor 赵恒祥
Owner 赵恒祥
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