A new type of valve-air lead-acid battery for electric vehicles

A technology of lead-acid batteries and electric vehicles, applied in the field of electrochemistry, to achieve the effects of improving the service life of deep cycles, uniform grid distribution, and reducing tissue defects

Active Publication Date: 2019-04-09
山东久力新能源集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides a new type of valve-regulated lead-acid battery for electric vehicles, which fundamentally solves the problems of the consistency of batteries used in groups and the service life of deep cycles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 A novel valve-regulated lead-acid battery for electric vehicles

[0022] The negative grid in the battery uses a quaternary alloy, which is supplemented by Ca 0.075%, Sn 1.1%, Al 0.027%, and Pb; the positive grid uses a quaternary alloy, which is supplemented by Ca 0.07%, Sn 0.6%, Al 0.029%, and Pb; Ca, Sn, Al and Pb quaternary alloys are melted-continuously cast strips-continuously rolled-continuously rolled and trimmed-continuously punched and expanded into nets to produce expanded mesh grids for negative plates; Ca, Sn, Al and Pb quaternary alloys are melted—continuously cast strips—continuous rolling—continuous rolling and trimming—continuous punching to produce punched grids for positive plates;

[0023] The battery positive plate lead paste is made by mixing the following ingredients: the apparent specific gravity is 1.4g / cm 3 995kg of 1# electrolytic lead powder, 71500ml of sulfuric acid with a density of 1.4±0.005g / mL, 130000ml of pure water, 0.73kg o...

Embodiment 2

[0027] Example 2 A new valve-regulated lead-acid battery for electric vehicles

[0028] The negative grid in the battery uses a quaternary alloy, supplemented by Ca 0.08%, Sn 1.0%, Al 0.031%, and Pb; the positive grid uses a quaternary alloy, supplemented by Ca 0.06%, Sn 0.7%, Al 0.02%, and Pb; Ca, Sn, Al and Pb quaternary alloys are melted—continuously cast strips——continuously rolled——continuously rolled and trimmed——continuously punched and expanded into a net to produce the expanded mesh grid for the negative plate; Ca, Sn, Al and Pb quaternary alloys are melted - continuous casting of strips - continuous rolling - continuous rolling shearing - continuous punching to produce a punching grid for positive plates;

[0029] The battery positive plate lead paste is made by mixing the following ingredients: the apparent specific gravity is 1.35g / cm 3 990kg of 1# electrolytic lead powder, 72000ml of sulfuric acid with a density of 1.4±0.005g / mL, 128000ml of pure water, 0.71kg of...

Embodiment 3

[0033] Example 3 A new valve-regulated lead-acid battery for electric vehicles

[0034]The negative grid in the battery uses a quaternary alloy, supplemented by Ca 0.09%, Sn 1.2%, Al 0.025%, and Pb; the positive grid uses a quaternary alloy, supplemented by Ca 0.08%, Sn 0.5%, Al 0.019%, and Pb; Ca, Sn, Al and Pb quaternary alloys are melted-continuously cast strips-continuously rolled-continuously rolled and trimmed-continuously punched and expanded into nets to produce expanded mesh grids for negative plates; Ca, Sn, Al and Pb quaternary alloys are melted—continuously cast strips—continuous rolling—continuous rolling and trimming—continuous punching to produce punched grids for positive plates;

[0035] The battery positive plate lead paste is made by mixing the following ingredients: the apparent specific gravity is 1.43g / cm 3 1000kg of 1# electrolytic lead powder, 72000ml of sulfuric acid with a density of 1.4±0.005g / mL, 130000ml of pure water, 0.74kg of short fibers with ...

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PUM

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Abstract

The invention relates to a novel valve-regulated lead-acid battery for electric vehicles, a novel valve-regulated lead-acid battery for electric vehicles in the battery, which is characterized in that the negative grid in the lead-acid battery uses a quaternary alloy, Ca 0.06‑ 0.09%, Sn 1.0‑1.2%, Al 0.015‑0.035%, Pb complement; the positive grid uses a quaternary alloy, Ca 0.06‑0.09%, Sn 0.5‑0.7%, Al 0.015‑0.035%, Pb complement. The invention also includes the limitation on the composition and content of the lead paste of the positive and negative plates, and the preparation of the lead-acid storage battery. The invention fundamentally solves the problems of the consistency of batteries used in groups and the service life of deep cycles.

Description

technical field [0001] The invention relates to a novel valve-regulated lead-acid storage battery for electric vehicles, which belongs to the technical field of electrochemistry. Background technique [0002] With the implementation of the national new energy industry policy, the technological innovation of batteries for electric vehicles has been continuously improved, and the battery market has also continued to expand with the rapid growth of electric vehicles. Lead-acid batteries have obvious advantages as the source of power for electric vehicles. It is cheap, has high safety performance, can be recycled and reused, and has a mature production and recycling manufacturing base. [0003] Batteries for electric vehicles are key components of new energy vehicles. This series of batteries are used as power sources for vehicles. The consistency of group use and the service life of deep cycles are one of the important factors that currently limit the development of new energy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/12H01M4/73
CPCH01M4/73H01M10/12Y02E60/10Y02P70/50
Inventor 刘明伟韦学忠时培春韦学平王嘉泉王世玉王佳
Owner 山东久力新能源集团有限公司
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