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Container formation method of lead-acid storage battery for electric power system

A lead-acid battery and power system technology, applied in the field of storage batteries, can solve the problems of long formation charging cycle, poor battery cycle life, and poor formation consistency, so as to reduce the charging capacity and electrolyte density, improve battery life, and moderate acid density Effect

Active Publication Date: 2021-10-22
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the traditional external formation process, the environmental pollution of multiple charge and discharge internal formation is less, but the formation charging cycle is relatively long, the formation consistency is poor, the production efficiency is low, and the cycle life of the final finished battery is poor

Method used

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  • Container formation method of lead-acid storage battery for electric power system
  • Container formation method of lead-acid storage battery for electric power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The specification and model of the lead-acid battery used is GFM-400, and the density of acid injection is 1.180g / cm3. The specific charging and discharging process is as follows:

[0038] S1. After the battery is injected with acid, let it stand for 2 hours;

[0039] S2. Charge with 0.05C10 for 3 hours;

[0040] S3, charging with 0.13C10 for 38 hours;

[0041] S4, charging with 0.06C10 for 6 hours;

[0042] S5, stand still for 1 hour;

[0043] S6. Discharge at 0.12C10 to an average cell voltage of 1.8V;

[0044] S7, charge with 0.13C10 for 10 hours;

[0045] S8, charging with 0.07C10 for 28 hours;

[0046] Among them, C10 represents the rated capacity of the lead-acid battery.

[0047] In this embodiment, by increasing the charging current in the high current stage, the electrochemical reaction rate on the pole plate is accelerated, the formation efficiency of the lead-acid battery is improved, and the formation time of the lead-acid battery is shortened.

[004...

Embodiment 2

[0050] The specification and model of the lead-acid battery used is GFM-400, and the acid injection density is 1.180g / cm 3 , the specific charging and discharging process is as follows:

[0051] S1. After the battery is injected with acid, let it stand for 2 hours;

[0052] S2. Charge with 0.06C10 for 4 hours;

[0053] S3, then charge with 0.12C10 for 32 hours;

[0054] S4, then charge with 0.08C10 for 10 hours;

[0055] S5. Stand still for 1 hour

[0056] S6, then discharge at 0.1C10 to an average cell voltage of 1.8V;

[0057] S7, then charge with 0.15C10 for 10 hours;

[0058] S8, and then charge at 0.1C10 for 28 hours;

[0059] The initial capacity of the lead-acid battery was measured according to the "YDT799-2010 Valve-regulated sealed lead-acid battery for communication" standard, and the cycle life of the formed lead-acid battery was measured according to the 60%DOD cycle life test method, and recorded in Table 1.

Embodiment 3

[0061] The specification and model of the lead-acid battery used is GFM-400, and the acid injection density is 1.180g / cm 3 , the specific charging and discharging process is as follows:

[0062] S1. After the battery is injected with acid, let it stand for 2 hours;

[0063] S2. Charge with 0.05C10 for 4 hours;

[0064] S3, then charge with 0.14C10 for 30 hours;

[0065] S4, then charge with 0.06C10 for 9 hours;

[0066] S5, stand still for 1 hour;

[0067] S6, then discharge at 0.12C10 to an average cell voltage of 1.8V;

[0068] S7, and then charge with 0.13C10 for 10 hours;

[0069] S8, then charge with 0.05C10 for 40 hours;

[0070] The initial capacity of the lead-acid battery was measured according to the "YDT799-2010 Valve-regulated sealed lead-acid battery for communication" standard, and the cycle life of the formed lead-acid battery was measured according to the 60%DOD cycle life test method, and recorded in Table 1.

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Abstract

The invention relates to a container formation method of a lead-acid storage battery for an electric power system, which comprises the following steps: 1, placing the lead-acid storage battery filled with electrolyte in a water bath environment, cooling to below 45 DEG C, and charging and discharging; 2, standing for 1.5-2.5 hours after acid injection of the battery; 3, charging for 2 to 4 hours at the speed of 0.04 C to 0.06 C 10; 4, charging for 35 to 45 hours at the speed of 0.10 C to 0.15 C 10; 5, charging for 5 h to 10 h at the speed of 0.03 C to 0.08 C; 6, carrying out standing for 0.5 to 1.0 hour; 7, discharging at 0.10 C to 0.15 C10 C until the average monomer voltage is 1.8 V; 8, charging for 5 to 10 hours at 0.10 C to 0.15 C 10; and 9, charging for 20 to 30 hours at 0.05 C to 0.1 C 10. According to the container formation method for the lead-acid storage battery for the electric power system, the charging and discharging frequency is reduced, the time for container formation is shortened, the production efficiency is improved, meanwhile, the electrolyte density of the storage battery is reduced, and the cycle service life of the lead-acid storage battery is prolonged.

Description

technical field [0001] The invention relates to the field of accumulators, in particular to an internal formation method of lead-acid accumulators used in power systems. Background technique [0002] Batteries used in power systems have high service life requirements, and the discharge capacity needs to reach 100% to 115% of the rated capacity. Among them, the Southern Power Grid requires the electrolyte density range of the battery to be 1.250g / cm 3 ~1.290g / cm 3 , lower than 1.300g / cm2 of general lead-acid battery 3 The density of the electrolyte, the power grid also has requirements for the weight of the battery. In order to meet the requirements of the power system, the battery used in the power system adopts a thick plate scheme, and the amount of active material is higher than that of ordinary batteries. In order to facilitate production and meet environmental protection requirements, the battery is formed by an internal formation process of multiple charge and disch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/06
CPCH01M10/446H01M10/06Y02E60/10
Inventor 张杨王洪宇李静
Owner SHUANGDENG GRP
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