A positive plate for large-capacity battery, preparation method and large-capacity battery

A positive plate, battery technology, applied in battery electrodes, lead-acid battery electrodes, electrode carriers/current collectors, etc. The effect of fast capacity, excellent deep discharge performance and strong starting ability

Active Publication Date: 2021-11-09
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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  • A positive plate for large-capacity battery, preparation method and large-capacity battery
  • A positive plate for large-capacity battery, preparation method and large-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 electrode plate for a large-capacity battery. The positive electrode plate includes a positive electrode grid and a positive electrode paste coated on the positive electrode grid. 0.05‑0.07wt%; aluminum 0.01‑0.02wt%; antimony 0.3‑0.5wt%; iridium 0.03‑0.05wt%; rhenium 0.07‑0.15wt%; For: magnesium lead acid 0.1‑0.3wt%; stannous sulfate 0.1‑0.3wt%; polyolefin 0.1‑0.3wt%; 4BS seed crystal 0.1‑0.3wt%; sodium perborate 0.01‑0.03wt%; Ketjen black 0.03 ‑0.05wt%; dilute sulfuric acid 9‑10wt%; pure water 10‑12wt%; fiber 0.1‑0.12wt%, the balance being lead powder with an oxidation degree of 71‑73%; the invention also discloses a large-capacity battery , including a negative plate and a separator, the separator is a double-composite type, from left to right is a thick glass fiber layer, a fine glass fiber layer, a PE layer, a fine glass fiber layer and a thick glass fiber layer, and the PE layer is wrapped with At least one positive plate adopting the above formula has the characteristics of excellent deep discharge performance, fast recovery ability after deep discharge, and strong starting ability.

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 Patents(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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