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Coiled lead-acid battery with lead foam negative electrode grid and preparing method thereof

A lead-acid battery, lead foam technology, applied in the direction of lead-acid battery, lead-acid battery construction, electrode carrier/current collector, etc. , the high quality of the wound lead-acid battery, etc., to achieve the effect of high utilization of active materials, improved specific energy, and low battery quality

Inactive Publication Date: 2006-06-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing wound lead-acid battery has high mass, low specific capacity, specific energy and specific power, weak combination of active material and current collector, and low utilization rate of active material. A kind of foam lead negative electrode grid wound lead-acid battery and preparation method

Method used

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  • Coiled lead-acid battery with lead foam negative electrode grid and preparing method thereof
  • Coiled lead-acid battery with lead foam negative electrode grid and preparing method thereof
  • Coiled lead-acid battery with lead foam negative electrode grid and preparing method thereof

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specific Embodiment approach 1

[0006] Specific implementation mode one: combine Figure 4 Describe this embodiment, in this embodiment, the lead-foamed negative electrode grid wound lead-acid battery includes a battery cover 1, a positive terminal 2, a pole ear 3, a mandrel 4, an outer circular fixture 8, a battery case 9, and a grid bottom Holder 10, exhaust valve 11, negative pole terminal 12, it also includes positive pole 7 surrounding mandrel 4, negative pole 5 with foamed lead negative pole grid as current collector and AGM separator 6 between positive pole 7 and negative pole 5.

specific Embodiment approach 2

[0007] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the positive electrode 7 is a positive lead foil grid or a positive lead cloth grid coated with positive lead paste.

specific Embodiment approach 3

[0008] Specific embodiment three: the present embodiment realizes the preparation of the lead-foamed negative electrode grid wound lead-acid battery through the following steps: (1) and paste: prepare the positive lead paste coated with the positive electrode grid and the lead paste coated with the foamed lead negative electrode grid Negative electrode paste; (2) Pretreatment: Thin the foamed lead negative electrode grid to 0.6-1.1mm with a tablet press, then cut the thinned foamed lead negative electrode grid and positive electrode grid to the same size, and press The thin foamed lead negative grid is placed in a vacuum drying oven at 160-180°C for 1.8-2.2 hours; (3) Paste application: the positive electrode paste is evenly applied to the positive electrode grid to make the positive electrode, and the negative electrode paste is evenly applied to the The foamed lead negative pole grid after the vacuum drying is made into the foamed lead negative pole; (4) Winding: the positive...

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Abstract

The preparation method for a rolled lead-acid battery with foam-lead negative plate grid overcomes the problems of heavy mass, low specific capacity / energy / power, loose combination of active material and collector in prior art, which comprises: 1. mixing paste; 2. pre-treating; 3. coating paste; 4. rolling; 5. solidifying; 6. assembly; 7. reduction. Wherein, the said battery comprises positive electrode (7) round a spindle (4), a negative electrode (5) with foam-lead negative plate grid as collector, and AGM baffle plate (6) between two electrodes.

Description

technical field [0001] The invention relates to a lead-acid battery and a preparation method thereof. Background technique [0002] Lead-acid batteries have the advantages of low cost, reliable use, and abundant sources of raw materials, but the defects of low specific capacity and specific power, short cycle life, and poor fast charging ability limit their development in the field of electric vehicles and electric bicycles. For this reason, people began to study winding valve-regulated lead-acid batteries. In the late 1960s, the American GATES company took the lead in developing a winding lead-acid battery, which was introduced to the market by Sweden's OPTIMA company. The winding lead-acid battery technology developed by BOLDER in the United States is called TMF patented technology (Thin Metal Film). It improves the high-rate discharge performance of the battery by increasing the area of ​​the plates and reducing the distance between the plates. The American EXIDE company...

Claims

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Application Information

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IPC IPC(8): H01M10/12H01M4/73
CPCY02E60/10Y02P70/50
Inventor 戴长松王殿龙胡信国姜兆华高丽霞伊廷锋
Owner HARBIN INST OF TECH
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