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Storage battery grid

A battery and grid technology, applied to battery electrodes, circuits, electrical components, etc., to achieve good conductivity, improve ineffective interface structure, and improve deep discharge performance

Active Publication Date: 2014-04-23
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Can effectively improve the "invalid interface structure" problem

Method used

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Examples

Experimental program
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Embodiment 1

[0024] Such as figure 1 As shown, a storage battery grid in this embodiment includes a grid 3 and a frame 1 arranged along the periphery of the grid. The grid is made of a metal alloy, and the metal alloy is composed of aluminum: 88% , magnesium: 5%, tin: 7%. The frame 1 is made of a lead-tin alloy, and the composition of the lead-tin alloy is, by weight percentage, lead: 99%, tin: 1%. Magnesium is chemically active and has a certain degree of ductility and heat dissipation, while tin and aluminum elements can increase the fluidity, electrical conductivity, corrosion resistance and strength of the alloy. The grid is made by gravity casting, cut after 72 hours of natural aging, and the cut grid table is silver-plated. Gravity casting refers to the process of pouring molten metal into the mold under the action of the gravity of the earth, also known as casting. The gravity casting method has a simple process and low cost; the surface of the grid is plated with silver, which ca...

Embodiment 2

[0032] In this embodiment, a battery grid has the same structure as in Embodiment 1, but the composition of the metal alloy used to prepare the grid is different from that in Embodiment 1. In terms of weight percentage, the composition of the metal alloy in this embodiment is: aluminum: 90 %, Magnesium: 5%, Tin: 5%.

[0033] The composition of the lead-tin alloy for preparing the frame is different from that of Example 1. In terms of weight percentage, the composition of the lead-tin alloy in this embodiment is: lead: 98.5%, tin: 1.5%.

[0034] The grid of the conventional grid, by weight percentage, calcium: 0.085%, tin: 0.025%, aluminum: 1.2%, and the rest is lead. The frame of the conventional grid is the same as that of this embodiment. The weight of the small piece of the positive plate using the conventional grid is 9.5g, while the small piece of the positive plate using the grid of this embodiment only needs 6.9g.

[0035] The cycle life test was performed on the batt...

Embodiment 3

[0039] In this embodiment, a battery grid has the same structure as in Embodiment 1, but the composition of the metal alloy used to prepare the grid is different from that in Embodiment 1. In terms of weight percentage, the composition of the metal alloy in this embodiment is: aluminum: 86 %, Magnesium: 7%, Tin: 7%.

[0040] The composition of the lead-tin alloy for preparing the frame is different from that of Example 1. In terms of weight percentage, the composition of the lead-tin alloy in this embodiment is: lead: 99.5%, tin: 0.5%.

[0041] The grid of the conventional grid, by weight percentage, calcium: 0.085%, tin: 0.025%, aluminum: 1.2%, and the rest is lead. The frame of the conventional grid is the same as that of this embodiment. The weight of the positive small piece using the conventional grid is 9.5g, while the positive small piece using the grid of this embodiment only needs 7.0g.

[0042] The cycle life test was performed on the battery using the battery grid...

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Abstract

The invention discloses a storage battery grid which comprises a grid and a frame arranged along the circumference of the grid, wherein the grid is composed of a metal alloy which comprises the following components in percentage by weight: 86-90 percent of aluminum, 3-7 percent of magnesium, and 5-9 percent of tin, and the grid surface is coated with silver, the grid of the storage battery grid is made from an aluminum-magnesium-tin alloy, and has good electrical conductivity, corrosion resistance, strength, good electrical contact with the anode active material, the problem of 'invalid interface structure' is improved effectively; and because that the aluminum-magnesium-tin alloy material is lighter, the active substances are more in a pole plate of same weight, thus the deep discharge performance is improved; and by adopting the plating silver process for the grid, the deep discharge performance of a battery is improved, the problem of 'invalid interface structure' is further improved. By virtue of improving the problem of 'invalid interface structure', the service life of the storage battery is prolonged effectively.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a battery grid. Background technique [0002] The development of science and technology, the improvement of human life quality, the crisis of oil resources, and the deteriorating ecological environment of the earth have formed a dual social background for the rapid development of science and technology and industry in the field of new secondary batteries and related materials. The urgent demand of the market has led to the emergence of new secondary batteries. Among them, the battery has the advantages of stable voltage, safety and reliability, low price, wide application range, abundant raw materials, and high recycling rate. It is the battery with the largest output and widest application among all kinds of batteries in the world. [0003] A battery is a device that directly converts chemical energy into electrical energy. It is a rechargeable battery designed to be recharged through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/73
CPCH01M4/662Y02E60/10
Inventor 黄玉清高根芳陈清元朱健李丹沈旭培代飞刘清平
Owner TIANNENG BATTERY GROUP