Preparation method of lead crystal carbon storage battery

A battery and lead crystal technology, applied in lead-acid batteries, lead-acid battery construction, battery electrodes, etc., can solve the problems of poor temperature adaptability, easy dehydration and drying of batteries, easy falling off of active materials, etc., and achieve excellent low temperature resistance , Solve the problem of hydrogen evolution, improve the effect of hydrogen evolution overpotential

Inactive Publication Date: 2016-12-07
宁波中科孚奇能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research and development of lead-carbon batteries also faces some problems. For example, the active material in lead-carbon batteries is easy to fall off, and the temperature adaptability is poor. After adding a certain amount of carbon materials, the hydrogen evolution overpotential of the negative electrode is reduced, and the battery is easy to lose water and dry up. , there is acid leakage phenomenon in the process of use, which has great pollution to the environment
[0004] The Chinese invention patent application "A Lead Crystal Battery" (application number: CN200810121140.9) with the application publication number of CN 101369673 A discloses a preparation method of a le

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1:

[0031] The preparation method of the lead crystal carbon storage battery of this embodiment includes the following steps:

[0032] (1) Battery positive and negative electrode lead pastes: The positive and negative electrode lead pastes are prepared by dry mixing or wet mixing respectively; in terms of weight percentage, the formula of the positive electrode paste in this embodiment includes the following components

[0033] 0.05% polyester staple fiber, 0.05% expansion agent, 10% sulfuric acid with a density of 1.0g / mL, 6% deionized water, and the balance lead powder with an oxidation degree of 70%;

[0034] In terms of weight percentage, the negative lead paste formula includes the following components

[0035] 0.05% of polyester staple fiber, 0.05% of expansion agent, 10% of sulfuric acid with a density of 1.0g / mL, 6% of deionized water, 0.2% of carbon materials, and the balance of lead powder with an oxidation degree of 70%;

[0036] Among them, the expansion agent...

Example Embodiment

[0047] Example 2:

[0048] The preparation method of the lead crystal carbon storage battery of this embodiment includes the following steps:

[0049] (1) Battery positive and negative electrode lead pastes: The positive and negative electrode lead pastes are prepared by dry mixing or wet mixing respectively; in terms of weight percentage, the formula of the positive electrode paste in this embodiment includes the following components

[0050] 0.10% polyester staple fiber, 0.25% expansion agent, 14% sulfuric acid with a density of 1.4g / mL, 8% deionized water, and the balance of lead powder with an oxidation degree of 78%;

[0051] In terms of weight percentage, the negative lead paste formula includes the following components

[0052] 0.10% of polyester staple fiber, 0.25% of expansion agent, 14% of sulfuric acid with a density of 1.4g / mL, 8% of deionized water, 8% of carbon materials, and the balance of lead powder with an oxidation degree of 78%;

[0053] Among them, the expansion agen...

Example Embodiment

[0064] Example 3:

[0065] The preparation method of the lead crystal carbon storage battery of this embodiment includes the following steps:

[0066] (1) Battery positive and negative electrode lead pastes: The positive and negative electrode lead pastes are prepared by dry mixing or wet mixing respectively; in terms of weight percentage, the formula of the positive electrode paste in this embodiment includes the following components

[0067] 0.05% of polyester staple fiber, 0.25% of expansion agent, 10% of sulfuric acid with a density of 1.4g / mL, 8% of deionized water, and the balance of lead powder with a degree of oxidation of 70%;

[0068] In terms of weight percentage, the negative lead paste formula includes the following components

[0069] 0.10% of polyester staple fiber, 0.25% of expansion agent, 14% of sulfuric acid with a density of 1.0g / mL, 6% of deionized water, 0.2% of carbon materials, and the balance of lead powder with an oxidation degree of 78%;

[0070] Among them, th...

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Abstract

The invention relates to a preparation method of a lead crystal carbon storage battery. A composite carbon material with high specific surface area is added to a negative plate of the battery, so that the battery provided by the invention has long cycle life and excellent high current charge-discharge capability. A weak acid electrolyte is introduced into the assembled battery, so that, compared with the battery employing a strong acid electrolyte in the prior art, the battery provided by the invention is low in internal resistance; the hydrogen evolution over-potential is improved; the hydrogen evolution problem is effectively solved. Due to the characteristic that the formed electrolyte is in a crystalline state, active materials can be firmly fixed; an enough space is provided for motion of ions; the disadvantages of sulfation of a negative electrode of the lead-acid storage battery, corrosion of a positive grid, active material dropping and the like are effectively overcome; the service lifetime of the battery is greatly prolonged; meanwhile, the formed electrolyte in the crystalline state does not generate acid vapor in the charging process, does not generate a leakage phenomenon and is environment-friendly and safe; and the battery has excellent low temperature resistance.

Description

technical field [0001] The invention relates to the technical field of lead-carbon batteries, in particular to a method for preparing a lead crystal carbon battery. Background technique [0002] Entering the 21st century of rapid development, the problems of energy and resource shortages and environmental pollution faced by mankind will become more and more prominent, especially the energy crisis, which has become an important factor restricting the economic and social development of various countries. For this reason, countries all over the world are sparing no effort in developing and utilizing renewable resources, and maximizing the utilization rate of resources. my country's clean energy such as wind energy and solar energy has developed rapidly in recent years, but due to the intermittent nature of wind energy and solar energy, it is difficult to connect to the grid. In the absence of cost-effective energy storage equipment, the large-scale development of new energy is ...

Claims

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Application Information

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IPC IPC(8): H01M10/12H01M4/62H01M10/08
CPCH01M4/625H01M10/08H01M10/12Y02E60/10Y02P70/50
Inventor 田中和项裕桥王建新
Owner 宁波中科孚奇能源科技有限公司
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