CN103682468B - Electromobile lead acid storage battery electrolyte - Google Patents
Electromobile lead acid storage battery electrolyte Download PDFInfo
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- CN103682468B CN103682468B CN201310640312.4A CN201310640312A CN103682468B CN 103682468 B CN103682468 B CN 103682468B CN 201310640312 A CN201310640312 A CN 201310640312A CN 103682468 B CN103682468 B CN 103682468B
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- electromobile
- sulphuric acid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/08—Selection of materials as electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0002—Aqueous electrolytes
- H01M2300/0005—Acid electrolytes
- H01M2300/0011—Sulfuric acid-based
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to the technical field of storage batteries, and particularly relates to an electromobile lead acid storage battery electrolyte. The electrolyte is prepared from following raw materials by weight: 2-3 parts of sodium carboxymethylcellulose, 0.5-2 parts of a succinate, 0.1-0.8 part of bismuth oxide, 0.3-0.7 part of stannous sulfate, 32-36 parts of sulfuric acid and 58-65 parts of water. The electrolyte is capable of avoiding capacity fading in the early stage of the electromobile lead acid storage battery, reducing the water loss in the cycle process, inhibiting generation of large-granule lead sulphate, increasing the battery capacity and prolonging the service lifetime of the battery.
Description
Technical field
The present invention is battery technology field, is specifically related to a kind of electromobile lead acid storage battery electrolyte.
Background technology
The short following a few class phenomenons of service lifetime of accumulator can be improved in terms of electrolyte prescription: battery dehydration is too fast, oxygen blast cyanidation after electrolyte dry-out；After battery deep discharge, the granule of lead sulfate is big especially, and lead sulfate cannot be made after charging to be converted into active substance；Battery drastically declines at low temperature season capacity；Grid is big with lead plaster interface resistance, and last the loosening of the power that be combined with each other between lead plaster and lead plaster difference comes off；It is few time by time that battery is filled with electricity, and electric discharge will be fewer and feweri, belongs to charge acceptance poor；Battery capacity compares somewhat on the low side with design capacity.
Summary of the invention
For the problems referred to above, in order to avoid lead-acid battery of electric vehicle early stage capacity attenuation, reduce cyclic process fluid loss, hinder the generation of bulky grain lead sulfate, and improve battery capacity and life-span, the invention provides a kind of electromobile lead acid storage battery electrolyte.
The present invention is achieved through the following technical solutions:
A kind of electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2-3 part, succinate 0.5-2 part, bismuth oxide 0.1-0.8 part, stannous sulfate 0.3-0.7 part, sulphuric acid 32-36 part, water 58-65 part.
According to above-mentioned electromobile lead acid storage battery electrolyte, it is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 3 parts, succinate 0.8 part, bismuth oxide 0.5 part, stannous sulfate 0.3 part, 34 parts of sulphuric acid, 61.4 parts of water.
According to above-mentioned electromobile lead acid storage battery electrolyte, it is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2 parts, succinate 2 parts, bismuth oxide 0.4 part, stannous sulfate 0.3 part, 33 parts of sulphuric acid, 62.3 parts of water.
According to above-mentioned electromobile lead acid storage battery electrolyte, it is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2.5 parts, succinate 1 part, bismuth oxide 0.8 part, stannous sulfate 0.4 part, 35 parts of sulphuric acid, 60.3 parts of water.
According to above-mentioned electromobile lead acid storage battery electrolyte, it is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2 parts, succinate 0.7 part, bismuth oxide 0.6 part, stannous sulfate 0.7 part, 36 parts of sulphuric acid, 60 parts of water.
According to above-mentioned electromobile lead acid storage battery electrolyte, it is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2.5 parts, succinate 1.2 parts, bismuth oxide 0.5 part, stannous sulfate 0.3 part, 34 parts of sulphuric acid, 61.5 parts of water.
According to above-mentioned electromobile lead acid storage battery electrolyte, described sulphuric acid is concentrated sulphuric acid, and mass fraction is 97～99%.
According to above-mentioned electromobile lead acid storage battery electrolyte, the Fe content of described sulphuric acid≤0.0005wt%, Cl content≤0.0005wt %.
According to above-mentioned electromobile lead acid storage battery electrolyte, described water is deionized water, its electrical conductivity≤5 μ S/cm, and the purpose controlling conductivity is to reduce the impurity content inside electrolyte, to reduce self discharge.
According to above-mentioned electromobile lead acid storage battery electrolyte, described electrolyte is prepared from by following steps:
(1) in the container of corrosion-resistant and high-temperature resistant, it is sequentially added into pure water, sulphuric acid, adds the additives such as sodium carboxymethyl cellulose, succinate, bismuth oxide, stannous sulfate, be stirred, make additive fully dissolve, and make the electrolyte the most even heat of upper and lower Density Distribution fully distribute；
(2) treat that temperature is reduced to less than 55 DEG C, carry out density measure；
(3) stand, treat that temperature is reduced to less than 20 DEG C and can use.
The positive beneficial effect of the present invention:
It can be avoided that lead-acid battery of electric vehicle early stage capacity attenuation after electrolyte of the present invention uses, reduce cyclic process fluid loss, hinder the generation of bulky grain lead sulfate, and improve battery capacity and life-span.Electrolyte of the present invention can improve the charge acceptance 10% of battery, hence it is evident that improves the cycle life about 15% of battery；It is the 70% the most qualified of room temperature capacity that the low temperature capacity making-15 DEG C of battery improve 7%(standard to be-15 DEG C, and this battery can accomplish 80%)；It is the 0.75% of normal capacity that battery over-discharge performance improves 6%(standard, and this battery can accomplish 0.80%).
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in more detail, but the invention is not restricted to these embodiments.
Embodiment
1
The present embodiment electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 3 parts, succinate 0.8 part, bismuth oxide 0.5 part, stannous sulfate 0.3 part, 34 parts of sulphuric acid, 61.4 parts of water.
Described sulphuric acid is concentrated sulphuric acid, and mass fraction is 97%；Described water is deionized water.
Owing to battery design space is less, enough in order to ensure lead amount, the most only it is reduced electrolyte space, and the consumption of electrolyte determines battery performance；Battery uses in hot environment, and battery dehydration is fast.The present embodiment electrolyte is suitable for reducing battery dehydration.
Embodiment
2
The present embodiment electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2 parts, succinate 2 parts, bismuth oxide 0.4 part, stannous sulfate 0.3 part, 33 parts of sulphuric acid, 62.3 parts of water.
Described sulphuric acid is concentrated sulphuric acid, mass fraction 98%, Fe content≤0.0005wt%, Cl content≤0.0005wt %；Described water is deionized water, its electrical conductivity≤5 μ S/cm.
Battery life-time service is in the condition of overdischarge, and charging not in time, easily generates oarse-grained lead sulfate；Battery uses bears the plate easy overdischarge substantial amounts of lead sulfate of generation at low ambient temperatures, is not easy to be converted into active substance when charging.Above phenomenon preferably uses the present embodiment electrolyte, because it can disperse the accumulation of lead sulfate, and refines oarse-grained lead sulfate, and subsequent charge easily activates.
Embodiment
3
The present embodiment electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2.5 parts, succinate 1 part, bismuth oxide 0.8 part, stannous sulfate 0.4 part, 35 parts of sulphuric acid, 60.3 parts of water.
Described sulphuric acid is concentrated sulphuric acid, mass fraction 99%, Fe content≤0.0005wt%, Cl content≤0.0005wt %；Described water is deionized water, its electrical conductivity≤5 μ S/cm.
Polar plate solidification is bad, and lead plaster can be easily separated with grid；Battery early stage capacity attenuation is fast, belongs to grid big with the interface resistance of lead plaster；It is that being loosens obscission that battery is dissected；Battery is chronically at big electric current quick charge or electric discharge all can make lead plaster with grid adhesion worse and worse.Above phenomenon preferably uses the present embodiment electrolyte, increases the adhesion of grid and lead plaster, lead plaster and lead plaster.
Embodiment
4
The present embodiment electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2 parts, succinate 0.7 part, bismuth oxide 0.6 part, stannous sulfate 0.7 part, 36 parts of sulphuric acid, 60 parts of water.
Described sulphuric acid is concentrated sulphuric acid, and mass fraction is 97～99%；Described water is deionized water, its electrical conductivity≤5 μ S/cm.
It is internalized into the chemical conversion of battery green plate and the most thoroughly has white macula, cause self-discharge of battery fast；Battery charge acceptance is poor, charging interval length and to be filled with electricity few；The internal resistance of battery is big, heating easy to charge；Battery discharge time is short, and capacity is on the low side.Above phenomenon preferably uses the present embodiment electrolyte, because it increases conductive capability, improves charge acceptance, improves battery capacity.
Embodiment
5
The present embodiment electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2.5 parts, succinate 1.2 parts, bismuth oxide 0.5 part, stannous sulfate 0.3 part, 34 parts of sulphuric acid, 61.5 parts of water.
Described sulphuric acid is concentrated sulphuric acid, and mass fraction is 95；Described water is deionized water, its electrical conductivity≤5 μ S/cm.
If battery properties is all normal, uses environment normal, preferably use the present embodiment electrolyte, properties can be made to properly increase again, extend battery 25%.
Embodiment
6
Embodiment 1 ~ 6 electromobile lead acid storage battery electrolyte is prepared from by following steps:
(1) in the container of corrosion-resistant and high-temperature resistant, it is sequentially added into pure water, sulphuric acid, adds the additives such as sodium carboxymethyl cellulose, succinate, bismuth oxide, stannous sulfate, be stirred, make additive fully dissolve, and make the electrolyte the most even heat of upper and lower Density Distribution fully distribute；
(2) treat that temperature is reduced to less than 55 DEG C, carry out density measure；Adding sulphuric acid adjustment raising if density is on the low side, the higher adjustment that adds water of density reduces；
(3) stand, treat that temperature is reduced to less than 20 DEG C and can use.
The invention is not limited in above-mentioned detailed description of the invention, those skilled in the art also can make multiple change accordingly, but any all should contain the scope in the claims in the present invention with present invention equivalent or similar change.
Claims (6)
1. an electromobile lead acid storage battery electrolyte, it is characterized in that, be made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2-3 part, succinate 0.5-2 part, bismuth oxide 0.1-0.8 part, stannous sulfate 0.3-0.7 part, sulphuric acid 32-36 part, water 58-65 part；Described sulphuric acid is concentrated sulphuric acid, and mass fraction is 97 ~ 99%, Fe content≤0.0005wt%, Cl content≤0.0005wt % in sulphuric acid；Described water is deionized water, its electrical conductivity≤5 μ S/cm；
Described electrolyte is prepared from by following steps:
(1) in the container of corrosion-resistant and high-temperature resistant, it is sequentially added into pure water, sulphuric acid, adds sodium carboxymethyl cellulose, succinate, bismuth oxide, stannous sulfate, be stirred, make additive fully dissolve, and make the electrolyte the most even heat of upper and lower Density Distribution fully distribute；
(2) treat that temperature is reduced to less than 55 DEG C, carry out density measure；
(3) stand, treat that temperature is reduced to less than 20 DEG C and can use.
Electromobile lead acid storage battery electrolyte the most according to claim 1, it is characterized in that, be made up of the raw material including following weight portion: sodium carboxymethyl cellulose 3 parts, succinate 0.8 part, bismuth oxide 0.5 part, stannous sulfate 0.3 part, 34 parts of sulphuric acid, 61.4 parts of water.
Electromobile lead acid storage battery electrolyte the most according to claim 1, it is characterized in that, be made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2 parts, succinate 2 parts, bismuth oxide 0.4 part, stannous sulfate 0.3 part, 33 parts of sulphuric acid, 62.3 parts of water.
Electromobile lead acid storage battery electrolyte the most according to claim 1, it is characterized in that, be made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2.5 parts, succinate 1 part, bismuth oxide 0.8 part, stannous sulfate 0.4 part, 35 parts of sulphuric acid, 60.3 parts of water.
Electromobile lead acid storage battery electrolyte the most according to claim 1, it is characterized in that, be made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2 parts, succinate 0.7 part, bismuth oxide 0.6 part, stannous sulfate 0.7 part, 36 parts of sulphuric acid, 60 parts of water.
Electromobile lead acid storage battery electrolyte the most according to claim 1, it is characterized in that, be made up of the raw material including following weight portion: sodium carboxymethyl cellulose 2.5 parts, succinate 1.2 parts, bismuth oxide 0.5 part, stannous sulfate 0.3 part, 34 parts of sulphuric acid, 61.5 parts of water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310640312.4A CN103682468B (en) | 2013-12-04 | 2013-12-04 | Electromobile lead acid storage battery electrolyte |
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| CN201310640312.4A CN103682468B (en) | 2013-12-04 | 2013-12-04 | Electromobile lead acid storage battery electrolyte |
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| CN103682468A CN103682468A (en) | 2014-03-26 |
| CN103682468B true CN103682468B (en) | 2017-01-11 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104064816B (en) * | 2014-05-14 | 2016-10-05 | 超威电源有限公司 | A kind of electrolysis additive of lead-acid accumulator suppression liberation of hydrogen and preparation method thereof |
| CN105186047B (en) * | 2015-06-25 | 2017-06-16 | 天能集团江苏科技有限公司 | A kind of high-performance lead-acid battery colloidal electrolyte and preparation method thereof |
| CN106025378A (en) * | 2016-05-25 | 2016-10-12 | 江苏帕维电动科技有限公司 | Electrolyte of lead-acid storage battery of electric vehicle |
| CN108039426A (en) * | 2017-12-20 | 2018-05-15 | 庄巍 | A kind of cell apparatus of electric car |
| CN108336422B (en) * | 2018-03-15 | 2020-03-31 | 天能电池集团股份有限公司 | Low-temperature-resistant storage battery electrolyte and preparation method thereof |
| CN110265733A (en) * | 2019-06-14 | 2019-09-20 | 江西奥沃森新能源有限公司 | A kind of new energy electric motor vehicle power supply control lead-acid accumulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886860A (en) * | 2003-10-28 | 2006-12-27 | 株式会社杰士汤浅 | Lead acid storage battery and method for producing same |
| CN1960049A (en) * | 2006-11-17 | 2007-05-09 | 蔡植如 | Activity increase agent for lead-acid storage battery |
| CN101478057A (en) * | 2009-01-15 | 2009-07-08 | 公平 | Gel special for gel battery production |
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- 2013-12-04 CN CN201310640312.4A patent/CN103682468B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886860A (en) * | 2003-10-28 | 2006-12-27 | 株式会社杰士汤浅 | Lead acid storage battery and method for producing same |
| CN1960049A (en) * | 2006-11-17 | 2007-05-09 | 蔡植如 | Activity increase agent for lead-acid storage battery |
| CN101478057A (en) * | 2009-01-15 | 2009-07-08 | 公平 | Gel special for gel battery production |
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