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Positive plate for high-capacity battery, preparation method and high-capacity battery

A positive plate and large-capacity technology, which is applied in the direction of battery electrodes, lead-acid battery electrodes, electrode carriers/collectors, etc., can solve the problems that are difficult to achieve deep discharge capacity, rapid recovery ability, high-strength starting ability, and general performance. Improve charge acceptance and discharge capacity, excellent performance, and uniform internal conductivity

Active Publication Date: 2020-09-18
TIANNENG BATTERY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The lead pastes and grids disclosed in the above-mentioned patents all use conventional materials and proportions, and their performance is average, and it is difficult to achieve deep discharge capability, rapid recovery capability after deep discharge, and high-strength start-up capability.

Method used

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  • Positive plate for high-capacity battery, preparation method and high-capacity battery
  • Positive plate for high-capacity battery, preparation method and high-capacity battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Positive grid production:

[0047] The content of each component of the positive grid is: 1.2wt% tin; 0.05wt% calcium; 0.01wt% aluminum; 0.3wt% antimony; 0.03wt% iridium; The grid adopts punched plate or cast plate.

[0048] Negative grid production:

[0049] The content of each component of the negative grid is 1.2wt% tin Sn; 0.03wt% calcium Ca, and the balance is lead. The negative grid adopts stamped or cast pole plates.

[0050] 2. Production of positive lead paste:

[0051] The content of each component of the positive lead paste: magnesium lead acid 0.1kg; stannous sulfate 0.1kg; poly-1-butene 0.1kg; 4BS seed crystal 0.1kg; dilute sulfuric acid) 9kg (density 1.4g / cm 3 ); 10kg of pure water; the balance is lead powder with an oxidation degree of 71-73%.

[0052] And paste process:

[0053] (1) Mix the formula polyolefin and sodium perborate and stir, keep the temperature, and stir at a high speed of 2500r / min for 60min, then cool to normal temperature for us...

Embodiment 2

[0078] Only the differences from the above-mentioned embodiment 1 will be described below.

[0079] In this embodiment, the components of the positive grid are: 1.5wt% tin; 0.07wt% calcium; 0.02wt% aluminum; 0.5wt% antimony; 0.05wt% iridium;

[0080] The content of each component of the positive lead paste: magnesium lead acid 0.1kg; stannous sulfate 0.1kg; polybutene 0.1kg; 4BS seed crystal 0.1kg; sodium perborate 0.01kg; Density 1.4g / cm 3 ); 10kg of pure water; the balance is lead powder with an oxidation degree of 71-73%.

[0081] In this embodiment, the thickness of the tabs and the grid of the positive plate is 0.7 mm, the thickness of the positive plate is 1.2 mm; the thickness of the thick glass fiber layer is 0.3 mm, the thickness of the fine glass fiber layer is 0.3 mm, and the thickness of the PE layer is 0.2 mm. The thickness is 0.8mm, and the compression ratio is 20%.

Embodiment 3

[0083] Only the differences from the above-mentioned embodiment 1 will be described below.

[0084] In this embodiment, the contents of each component of the positive grid are: 1.2wt% tin; 0.05wt% calcium; 0.01wt% aluminum; 0.3wt% antimony; 0.03wt% iridium;

[0085] The content of each component of the positive lead paste: magnesium lead acid 0.3kg; stannous sulfate 0.3kg; polybutene 0.3kg; 4BS seed crystal 0.3kg; sodium perborate 0.03kg; Density 1.4g / cm 3 ); 12kg of pure water; the balance is lead powder with an oxidation degree of 71-73%.

[0086] In this embodiment, the thickness of the tabs and the grid of the positive plate is 0.75 mm, the thickness of the positive plate is 1.2 mm; the thickness of the thick glass fiber layer is 0.3 mm, the thickness of the fine glass fiber layer is 0.2 mm, and the thickness of the PE layer is 0.2 mm. The thickness is 0.7mm, and the compression ratio is 20%.

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Abstract

The invention discloses a positive plate for a high-capacity battery. The positive plate comprises a positive plate grid and positive lead paste coated on the positive plate grid. The positive plate grid comprises the following components in percentage by weight: 1.2-1.5 wt% of tin; 0.05 to 0.07 wt% of calcium; 0.01 to 0.02 wt% of aluminum; 0.3 to 0.5 wt% of antimony; 0.03%-0.05% wt% of iridium; 0.07 to 0.15 wt% of rhenium; and the balance of lead. The formula of the positive electrode lead paste comprises the following components in percentage by weight: 0.1-0.3 wt% of magnesium plumbate; 0.1to 0.3 wt% of stannous sulfate; 0.1 to 0.3 wt% of polyolefin; 0.1-0.3 wt% of a 4BS seed crystal; 0.01-0.03 wt% of sodium perborate; 0.03-0.05 wt% of Ketjen black; 9-10 wt% of dilute sulfuric acid; 10-12 wt% of pure water; 0.1-0.12 wt% of fiber, and the balance of lead powder with the oxidation degree of 71 to 73 percent. The invention also discloses a high-capacity battery, comprising a negativeplate and a partition plate. The partition plate is of a double-composite type and sequentially comprises a thick glass fiber layer, a fine glass fiber layer, a PE layer, a fine glass fiber layer anda thick glass fiber layer from left to right, at least one positive plate adopting the formula is wrapped in the PE layer. The positive plate has the advantages of being excellent in deep discharge performance, high in recovery capacity after deep discharge and high in starting capacity.

Description

technical field [0001] The invention relates to the technical field of storage batteries, in particular to a positive plate for a large-capacity battery, a preparation method and a large-capacity battery. Background technique [0002] Generally, lead-acid batteries for vehicles require instant start-discharge capability and low-temperature start performance, and such batteries cannot be used in deep charge and discharge situations; lead-acid batteries for vehicles with start-stop systems, The characteristic is that the engine is frequently started in the shallow discharge state, so this type of battery cannot be applied to the occasion of deep discharge to start the vehicle. [0003] Truck battery for parking air conditioner, the battery is used in winter and summer, when the truck is stopped and stopped, use the battery on the vehicle to start the vehicle air conditioner to meet the rest conditions of the car crew. In this state, the battery must not only meet the Deep dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/20H01M4/68H01M12/06
CPCH01M4/20H01M4/685H01M12/06H01M2004/028Y02E60/10
Inventor 刘海凤程艳青李海彪李越南袁关锐欧阳万忠周文渭庄建房兆锟
Owner TIANNENG BATTERY GROUP
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