Power valve-regulated lead-acid battery electrolyte and preparation method thereof

A lead-acid battery, power-type technology, applied in the direction of lead-acid battery, lead-acid battery construction, acid electrolyte, etc., can solve the problems that affect the full use of vehicles, long charging time, etc., to improve fast charging capacity, long effective time, Effect of quick charge ability improvement

Active Publication Date: 2020-12-29
ZIBO TORCH ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long charging time often affects the full use of the vehicle, so fast charging has become a research topic that people pay attention to

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 10kg sulfuric acid aqueous solution (1.270g / cm 3 , 30°C) and heated to 45°C, then gradually added 20g of sodium sulfate, 4g of cerium sulfate and 0.5g of NMP, stirred well and cooled to room temperature. The prepared solution is poured into a dynamic valve-regulated lead-acid battery of model 3-EVF-180J for formation. After the completion of formation and three 3hr full charge and full discharge cycles, the fast charging capacity is 17.5% higher than that of ordinary batteries; after 200 cycles, the fast charging capacity is 15.2% higher than ordinary batteries.

Embodiment 2

[0021] Take 10kg sulfuric acid aqueous solution (1.270g / cm 3 , 30°C) and heated to 45°C, then gradually added 50g of sodium sulfate, 6.5g of cerium sulfate and 4g of NMP, stirred well and cooled to room temperature. The prepared solution is poured into a dynamic valve-regulated lead-acid battery of model 3-EVF-180J for formation. After the completion of formation and three 3hr full charge and full discharge cycles, the fast charging capacity is 19.5% higher than that of ordinary batteries; after 200 cycles, the fast charging capacity is 16.3% higher than ordinary batteries.

Embodiment 3

[0023] Take 10kg sulfuric acid aqueous solution (1.270g / cm 3 , 30°C) and heated to 45°C, then gradually added 80g of sodium sulfate, 9g of cerium sulfate and 8g of NMP, stirred well and cooled to room temperature. The prepared solution is poured into a dynamic valve-regulated lead-acid battery of model 3-EVF-180J for formation. After the completion of formation and three 3hr full charge and full discharge cycles, the fast charging capacity is 21% higher than that of ordinary batteries; after 200 cycles, the fast charging capacity is 16% higher than ordinary batteries.

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PUM

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Abstract

The invention belongs to the technical field of lead-acid batteries, and in particular relates to a power type valve-regulated lead-acid battery electrolyte and a preparation method thereof. An additive is added to the sulfuric acid aqueous solution, and the additive is composed of sodium sulfate, catalyst and nitrogen methyl pyrrolidone; the catalyst is one or both of cerium sulfate or lanthanum sulfate. Adopting the electrolyte formula of dynamic valve-regulated lead-acid battery, the rapid charging ability is obviously improved, and the effective time is longer; when using, the additive is added in proportion to the sulfuric acid aqueous solution of the required density to dissolve, and then poured into the battery to form, which can improve the battery life. The fast charging capacity is more than 15%, and the effect can last for more than 200 cycles.

Description

technical field [0001] The invention belongs to the technical field of lead-acid batteries, and in particular relates to a power type valve-regulated lead-acid battery electrolyte and a preparation method thereof. Background technique [0002] When the power type lead-acid battery is charged normally, it generally takes more than 10 hours to reach a fully charged state. The long charging time often affects the full use of the vehicle, so fast charging has become a research topic that people pay attention to. [0003] The main factors affecting fast charging are: ohmic polarization, concentration polarization and electrochemical polarization during charging. The current fast charging is mainly reflected in the charging method, and the way of depolarization is used in the charging process to achieve the purpose of fast charging. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a power type...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/08H01M10/12
CPCH01M10/08H01M10/121H01M2300/0008Y02E60/10Y02P70/50
Inventor 单颖会吴涛战祥连陈龙霞唐胜群林双赵艳红
Owner ZIBO TORCH ENERGY
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