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Accumulator plate grid alloy with lead, calcium, strontium and rare earth

A lead-acid battery, grid technology, applied in the direction of electrode carrier/current collector, etc., can solve the problems of reducing the deep charge-discharge cycle life of maintenance-free batteries, poor deep cycle capability, low corrosion resistance, etc. The effect of poor cycle ability, hindering grain growth and prolonging service life

Inactive Publication Date: 2009-04-29
上海飞轮有色冶炼厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Some lead-acid battery grid alloys currently used have poor deep cycle capability and low corrosion resistance, which in turn reduces the deep charge and discharge cycle life of maintenance-free batteries.

Method used

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  • Accumulator plate grid alloy with lead, calcium, strontium and rare earth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Embodiment: The following is weight percentage.

[0033]

serial number

Pb

Calcium (Ca)

Tin (Sn)

Strontium (Sr) rare earth

(Re)

Silver (Ag)

Aluminum (Al) 1 margin 0.08 1.20 0.01 0.03 0.02 2 margin 0.06 1.20 0.02 0.02 0.02 3 margin 0.08 0.80 0.02 0.04 0.02 4 margin 0.06 2.0 0.05 0.01 0.10 0.02 5 margin 0.08 1.5 0.03 0.003

[0034] 6 margin 0.06 2.0 0.03 0.03 7 margin 0.08 1.2 0.04 0.05 0.03 8 margin 0.06 2.5 0.03 0.05 0.05 0.03

[0035] Manufacturing method of lead calcium strontium rare earth battery grid alloy:

[0036] The grid alloy material of the present invention is added into the lead liquid in the form of an intermediate alloy. Specifically: in the alloy pot, heat the lead to 500-800°C, and then add aluminum, tin, lead-calcium master alloy, lead-strontium master alloy, lead-rare-earth master alloy, etc. a...

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Abstract

The alloy is composed of 0.06í½0.08úÑ by weight Ca, 0.80í½2.50úÑ by weight Sn, 0.02í½0.05úÑ by weight Sr, and lead in amount of margin. Appropriate amount of Sr is added to improve corrosion-resistance and creep- resistance of the alloy, and to last useful life, and to improve age hardening speed, hardness and mechanic properties, and also to improve the early capacity loss and poor deep cycle ability.

Description

Technical field [0001] The invention relates to a lead-acid storage battery grid alloy. Background technique [0002] The reform of industrial structure, environmental protection, effective utilization of resources and the development of resource recycling have put forward many new requirements for lead-acid batteries. In this regard, countries all over the world are researching and developing high-performance batteries to solve problems such as reliability, maintenance-free, deep cycle, and corrosion resistance of lead-acid batteries. As the main part of the battery, the grid alloy plays an important role in the development of the battery. [0003] Some lead-acid battery grid alloys currently used have poor deep cycle capability and relatively low corrosion resistance, which in turn reduces the deep charge and discharge cycle life of maintenance-free batteries. Contents of the invention [0004] Aiming at the disadvantages of the above-mentioned grid alloys, the present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/68C22C11/00
CPCY02E60/12Y02E60/10
Inventor 沈嘉麟顾秀峰吴建华韩鹰张忠民
Owner 上海飞轮有色冶炼厂
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