Lead acid battery containing nano carbon tube electrolyte

A technology of carbon nanotubes and lead-acid batteries, applied in the direction of lead-acid batteries, etc., can solve the problems of affecting the conductive performance of lead-acid batteries, reducing the speed of ion movement, and uneven distribution of sulfuric acid, so as to improve the performance of ion conduction and increase large-scale Current charging and discharging, best commercial value-added effects

Inactive Publication Date: 2008-03-05
明鑫科技股份有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No. CN1505196 (authorized publication No. CN1237646C, patent No. ZL 02144682.2) discloses a lead-acid battery containing nano-carbon materials in the electrolyte, but the charge capacity of the lead-acid battery only increases by 7.7% ( From 3.9Ah to 4.2Ah), the improvement is not high enough, and the industry still needs an electrolyte with a higher improvement effect
[0012] However, because the electrolyte in the traditional lead-acid battery is easy to form a concentration gradient of sulfuric acid, the generation of sulfuric acid concentration gradient will make the distribution of sulfuric acid in the electrolyte uneven, and will reduce the speed of ion movement in the electrolyte, so it will directly affect the concentration of the electrolyte. Various characteristics of itself, such as electrical conductivity, thermal conductivity, etc., will also affect the conductive performance of lead-acid batteries

Method used

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  • Lead acid battery containing nano carbon tube electrolyte
  • Lead acid battery containing nano carbon tube electrolyte
  • Lead acid battery containing nano carbon tube electrolyte

Examples

Experimental program
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Effect test

Embodiment 1-26

[0068] Take the above-mentioned sulfuric acid solution with a density of 1.33g / ml, add carbon nanotubes and silica powder according to the formula listed in Table 1, and stir them thoroughly for 24 hours with a mixer, and mix them evenly, to prepare examples 1 to 26 Of electrolyte. Each electrolyte is added to the test battery, and the battery type used in automobiles and motorcycles is 12V 4Ah. The test results are shown in Table 1.

[0069] Table 1. Performance of electrolytes with various carbon nanotubes and silica concentrations in non-colloidal batteries

[0070]

serial number

Carbon nanotubes

weight ratio

Carbon nanotubes

Kind

Silica weight

Quantity ratio

0.4A discharge

, Hours

40A discharge

,second

Impact test

(Number of cycles)

Simulated life

Life

Comparative example 1

No sodium in electrolyte

M carbon tube

No

No

10

150

30

Qualified...

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Abstract

This invention relates to a lead-acid battery with nm carbon tube electrolyte including a tank containing a space with a positive structure, a negative structure and electrolyte, in which, the electrolyte contains nm carbon tube material of preset weight percentage between 0.001-0.1 and the structures include positive and negative matrixes separately, and the positive matrix includes a positive reaction face coated with positive reaction material and the negative matrix includes a negative reaction face coated with negative reaction material for carrying out chemical reaction.

Description

Technical field [0001] The invention relates to a lead-acid battery, in particular to a lead-acid battery containing carbon nanotube electrolyte. Background technique [0002] Batteries include chemical batteries and physical batteries. Chemical batteries are commonly known as batteries related to daily life. Chemical batteries are generally divided into primary batteries and secondary batteries (rechargeable batteries). The more common secondary batteries include There are lead acid batteries, nickelcadmium batteries, nickel hydrogen batteries, secondary lithium batteries, as well as lithium ion batteries and polymer lithium Battery (polymer lithium battery)...etc. [0003] At present, there is still a high degree of dependence on the use of lead-acid batteries in the market. For example, automobiles, motorcycles, and uninterruptible power systems all use lead-acid batteries as their main source of electricity. The characteristics of its widespread use by the general public are ...

Claims

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Application Information

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IPC IPC(8): H01M10/08
CPCY02E60/126Y02E60/10
Inventor 沈贤杨志申陈思彻
Owner 明鑫科技股份有限公司
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