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Maintenance-free lead-acid battery with excellent deep cycle life and production method

A lead-acid battery, production method technology, applied in lead-acid battery, lead-acid battery construction, battery electrodes and other directions, can solve the problems of reducing the utilization rate of active materials, increasing the thickness of the negative grid, increasing the number of plates, etc. The effect of improving low temperature discharge performance, improving electrical conductivity, and increasing deep cycle life

Active Publication Date: 2022-04-26
骆驼集团蓄电池研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing deficiencies are as follows: 1. By increasing the amount of lead paste, increasing the thickness of the negative electrode grid, and increasing the number of plates, the battery weight and lead consumption have been increased; 2. The formulation is adjusted to prolong the life and reduce the porosity to reduce the utilization of active materials. Rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Positive lead paste

[0048] The positive lead paste is composed of the following: short fiber 0.08%, antimony trioxide additive 0.1%, 4BS seed 0.6%, pure water 10%, 1.38g / cm 3 The sulfuric acid solution is 9%, and the rest is lead powder.

[0049] The preparation of described positive lead paste comprises the following steps:

[0050] (1) Mechanically premix antimony trioxide and 4BS seeds for 3 minutes and mix well;

[0051] (2) Put the auxiliary materials mixed in step (1) together with the short fibers into the lead powder, and dry stir for 6 minutes;

[0052] (3) Quickly add pure water and wet stir for 5 minutes;

[0053] (4) Slowly add the sulfuric acid solution to the mixture in step (3), the acid addition time is controlled at 12 minutes, the temperature during the process does not exceed 65°C, and after the acid addition is completed, stir for 10 minutes.

[0054] (5) After the paste is combined, fill it on the lead-calcium alloy grid, and then enter it to...

Embodiment 2

[0074] 1. Positive lead paste

[0075] The positive lead paste is composed of the following: short fiber 0.1%, antimony trioxide additive 0.15%, 4BS seed 1%, pure water 13%, 1.38g / cm 3 10% sulfuric acid solution, the rest is lead powder.

[0076] The preparation of described positive lead paste comprises the following steps:

[0077] (1) Mechanically premix antimony trioxide and 4BS seeds for 5 minutes and mix well;

[0078] (2) Put the auxiliary materials mixed in step (1) together with the short fibers into the lead powder, and dry stir for 6 minutes;

[0079] (3) Quickly add pure water and wet stir for 6 minutes;

[0080] (4) Slowly add the sulfuric acid solution to the mixture in step (3). The acid addition time is controlled at 12 minutes, and the temperature during the process does not exceed 65°C. After the acid addition is completed, stir for 13 minutes.

[0081] (5) After the paste is combined, fill it on the lead-calcium alloy grid, and then enter it to cure and ...

Embodiment 3

[0101] 1. Positive lead paste

[0102] The positive lead paste is composed of the following: short fiber 0.12%, antimony trioxide additive 0.08%, 4BS seed 1.2%, pure water 11%, 1.38g / cm 3 10% sulfuric acid solution, the rest is lead powder.

[0103] The preparation of described positive lead paste comprises the following steps:

[0104] (1) Mechanically premix antimony trioxide and 4BS seeds for 3 minutes and mix well;

[0105] (2) Put the auxiliary materials mixed in step (1) together with the short fibers into the lead powder, and dry stir for 5 minutes;

[0106] (3) Quickly add pure water and wet stir for 5 minutes;

[0107] (4) Slowly add the sulfuric acid solution to the mixture in step (3). The acid addition time is controlled at 14 minutes, and the temperature during the process does not exceed 65°C. After the acid addition is completed, stir for 15 minutes.

[0108] (5) After the paste is combined, fill it on the lead-calcium alloy grid, and then enter the curing a...

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Abstract

A maintenance-free lead-acid battery with excellent deep cycle life and its production method, the composition of the positive electrode paste: short fiber 0.05~0.12%, antimony trioxide additive 0.05~0.3%, 4BS seeds 0.4~1.5%, pure water 8~14%, sulfuric acid solution 8~12%, the rest is lead powder. The composition of negative electrode paste: carbon black 0.2~0.4%, short fiber 0.05~0.1%, lignin 0.1~0.3%, barium sulfate 0.5~1.0%, pure water 8~12%, sulfuric acid solution 7~12%, the rest is lead powder. The present invention does not sacrifice the utilization rate of battery active materials. Through the comprehensive application of technologies, the battery charge acceptance capacity, 90% SOC dynamic charge acceptance capacity, and micro-hybrid MHT service life of the present invention are greatly improved, and the deep cycle life is increased by 30~ 50%.

Description

technical field [0001] The invention belongs to the field of lead-acid storage batteries, and in particular relates to a maintenance-free lead-acid storage battery with excellent cycle life of deep discharge under partially charged state and a production method thereof. Background technique [0002] Lead-acid battery is mainly composed of positive plate, negative plate, separator, bus bar, electrolyte, tank cover and so on. The plate is the core component of the lead-acid battery. The performance of the plate directly affects the performance and service life of the battery, and the plate is usually composed of grids and lead paste. The function of the grid is to support, conduct electricity, and distribute current. It is generally made of alloy lead through lead strips, and then stretched or punched. The main function of lead paste is to provide energy storage and output in the charging and discharging process. It is the most important active substance directly participatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M4/62H01M10/08H01M50/411
CPCH01M10/12H01M4/628H01M4/625H01M10/08H01M50/411Y02E60/10Y02P70/50
Inventor 史俊雷徐建刚张祖波余萍夏诗忠高国兴
Owner 骆驼集团蓄电池研究院有限公司
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