Colloidal power lead-acid battery inner formation process

A lead-acid battery, internalization technology, applied in the direction of lead-acid battery, lead-acid battery construction, secondary battery, etc., can solve the problems of affecting battery performance, difficult to penetrate, high energy consumption, etc., to improve competitiveness and fully convert , Improving the effect of forming quality

Active Publication Date: 2018-09-28
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of difficult penetration, high energy consumption, large internal resistance and affecting battery performance existing in the internal formation process of colloid-powered lead-acid batteries, the present invention provides a battery positive plate with uniform formation and sufficient conversion of active materials. Internalization process of colloidal power lead-acid battery

Method used

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  • Colloidal power lead-acid battery inner formation process
  • Colloidal power lead-acid battery inner formation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Add colloidal electrolyte to the battery: first use concentrated sulfuric acid, pure water (conductivity less than 2μS / cm), sodium sulfate, and stannous sulfate to form an electrolyte with a mass fraction of sulfuric acid of 37.5%, sodium sulfate of 1.5%, and stannous sulfate of 0.5%. , and then add gas-phase silica while cutting to configure a colloidal electrolyte with a colloidal concentration of 2.5% and a sulfuric acid electrolyte density of 1.250-1.260g / ml. The configured colloidal electrolyte is added to the battery by vacuum perfusion, and the 0.5h, the temperature of the battery is controlled at 25°C, and the formation procedure includes the following steps in sequence:

[0040] (1) First charging stage: first charge with 0.1C current for 5 hours, and then charge with 0.15C current for 5 hours; the first charging stage is to charge 1.25 times the rated capacity;

[0041] (2) First discharge stage: discharge with 0.1C current for 1h;

[0042] (3) Second charge ...

Embodiment 2

[0062] Add colloidal electrolyte into the battery, let it stand for 1 hour, control the temperature of the battery at 30°C, and the formation procedure includes the following steps in sequence:

[0063] (1) First charging stage: first charge with 0.15C current for 3 hours, then charge with 0.2C current for 3 hours; the first charging stage is to charge 1.05 times the rated capacity;

[0064] (2) First discharge stage: discharge with 0.2C current for 0.5h;

[0065] (3) Second charge stage: charge with 0.2C current for 3h;

[0066] (4) Second discharge stage: discharge with 0.2C current for 0.5h;

[0067] (5) Three charging stages: charging with 0.25C current for 2h;

[0068] (6) Three discharge stage: discharge with 0.2C current for 0.5h;

[0069] (7) Four charging stage: charging with 0.3C current for 2h;

[0070] (8) Four discharge stage: discharge with 0.2C current for 0.5h;

[0071] (9) Five charging stage: charging with 0.35C current for 2h;

[0072] (10) Five-discharg...

Embodiment 3

[0085] Add colloidal electrolyte into the battery, let it stand for 0.75h, control the temperature of the battery at 45°C, and the formation procedure includes the following steps in sequence:

[0086] (1) First charging stage: first charge with 0.125C current for 4 hours, and then charge with 0.15C current for 3 hours; the first charging stage is to charge 0.95 times the rated capacity;

[0087] (2) First discharge stage: discharge with 0.1C current for 0.75h;

[0088] (3) Second charge stage: charge with 0.175 current for 3 hours;

[0089] (4) Second discharge stage: discharge with 0.15C current for 0.5h;

[0090] (5) Three charging stages: charge with 0.2C current for 4h;

[0091] (6) Three discharge stage: discharge with 0.15C current for 0.5h;

[0092] (7) Four charging stage: charge with 0.25C current for 4h;

[0093] (8) Four discharge stage: discharge with 0.15C current for 0.5h;

[0094] (9) Five charging stage: charge with 0.35C current for 4h;

[0095] (10) Fi...

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Abstract

The invention relates to the technical field of batteries, in particular to a colloidal power lead-acid battery inner formation process, comprising the steps of adding a colloidal electrolyte to a battery and standing for 0.5 to 1 h, wherein the formation procedure comprises a ten-charge phase, an alternating nine-discharge phase, a rest phase, and an acid extraction stage. The process in the invention effectively solves the problem that the power type colloidal battery is difficult to be completely formed, can ensure the uniformity of formation of the anode plate of the colloidal battery, fully converts the active material, and improves the inner formation quality of the colloidal battery. At the same time, the total formation time of the process is 27~51h before the 9th discharge capacity detection and matching discharge, and the total net charge is 3.4-8.75 times of the rated capacity, which reduces the battery charge electric quantity and formation time, enhances the effective charge electric quantity of the battery, improves the production capacity of the power colloidal batteries, reduces the cost of battery production, increases production efficiency and improves the competitiveness of batteries in the market.

Description

technical field [0001] The invention relates to the technical field of storage batteries, in particular to an internalization process for colloidal power lead-acid storage batteries. Background technique [0002] The formation of lead-acid batteries is a very critical process in the manufacture of lead-acid batteries. The quality of the formation process directly affects the performance and service life of lead-acid batteries. Even for lead-acid batteries with the same formula, same process, and same batch, the use of different currents and different formation times in the formation process will lead to changes in the particle size and arrangement of active materials. [0003] The formation process of lead-acid batteries is generally divided into two types: internal formation and external formation. Compared with external formation (tank formation), internal formation has the following advantages: the process simplifies the installation of plate washing, drying, battery repl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/12
CPCH01M10/121H01M10/446Y02E60/10Y02P70/50
Inventor 代少振项晨
Owner CHAOWEI POWER CO LTD
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