CN106025378A - Electrolyte of lead-acid storage battery of electric vehicle - Google Patents
Electrolyte of lead-acid storage battery of electric vehicle Download PDFInfo
- Publication number
- CN106025378A CN106025378A CN201610354283.9A CN201610354283A CN106025378A CN 106025378 A CN106025378 A CN 106025378A CN 201610354283 A CN201610354283 A CN 201610354283A CN 106025378 A CN106025378 A CN 106025378A
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- CN
- China
- Prior art keywords
- parts
- storage battery
- lead
- acid storage
- electrolyte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses electrolyte of a lead-acid storage battery of an electric vehicle. The electrolyte is prepared from the following raw materials in parts by weight: 4-5 parts of sodium carboxymethyl cellulose, 0.5-2 parts of succinate, 1-3 parts of a sulfoxide additive, 0.2-1.0 part of bismuth trioxide, 0.4-1.0 part stannous sulfate, 30-34 parts of sulfuric acid and 60-67 parts of water. After the electrolyte is adopted, the early-stage capacity of the lead-acid storage battery of the electric vehicle can be prevented from attenuation, water loss in a circulating process is reduced, the generation of large-particle lead sulfate is prevented, the capacity of the battery is improved and the service life of the battery is prolonged.
Description
Technical field
The invention belongs to electrolyte field, be specifically related to a kind of electromobile lead acid storage battery electrolyte.
Background technology
Storage battery is also called accumulator, is the equipment that chemical energy changes into electric energy.Lead-acid accumulator was from quilt in 1958
Since invention, the most history of more than 100 year.Lead-acid accumulator has simple in construction, dependable performance, easy to use, former
Material is easy to get and the advantage such as low price, is widely used in the numerous necks in the national economy such as transportation, communication and national defence
Territory, it has also become indispensable energy products in social production and human lives.
Lead-acid accumulator is widely applied to every field, especially field of telecommunications, stand-by power supply, accumulation power supply always
With power applications etc., but traditional lead-acid accumulator there is also premature capacity loss, service life short wait series of problems, its disease
Shape is positive plate grid corrosion, lead plaster softening and shedding, negative pole sulfation etc..When circuit discharging connected by lead-acid accumulator, electronics
By anode (negative plate) discharge, the Pb2+ ion of formation immediately with SO42-ionic reaction, be deposited into indissoluble at the electrode surface
The lead sulfate solved.At negative electrode (positive plate), from the electronics of external circuit, PbO2 is reduced to water and Pb2+ ion, Pb2
+ ion reacts with sulfate ion the most immediately, is deposited on electrode by PbSO4.When accumulator is discharged completely, negative electrode (positive pole
Plate) and anode (negative plate) be transformed substantially into PbSO4 (Gu).The additional backward voltage of accumulator, occurs reversible
Electrochemical reaction, i.e. accumulator charging.During overcharge, positive plate generates thick titanium dioxide lead layer and releasing oxygen, negative plate shape
Become biscuit lead layer and release hydrogen.
The short following a few class phenomenons of service lifetime of accumulator can be improved in terms of electrolyte prescription: battery dehydration
Too fast, oxygen blast cyanidation after electrolyte dry-out；After battery deep discharge, the granule of lead sulfate is big especially, cannot make lead sulfate after charging
It is converted into active substance；Battery drastically declines at low temperature season capacity；Grid is big with lead plaster interface resistance, lead plaster and lead plaster
Between be combined with each other that power difference is last loose to come 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 is poor；Battery capacity compares somewhat on the low side with design capacity.
Summary of the invention
Goal of the invention: present invention aims to the deficiencies in the prior art, it is provided that a kind of lead-acid battery of electric vehicle
Electrolyte.
Technical scheme: in order to reach foregoing invention purpose, the present invention is specifically achieved like this: a kind of electric motor car plumbic acid
Battery liquid, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 4-5 part, succinate 0.5-2
Part, sulfoxide additive 1-3 part, bismuth oxide 0.2-1.0 part, stannous sulfate 0.4-1.0 part, sulphuric acid 30-34 part, water
60-67 part.
Preferably, a kind of electromobile lead acid storage battery electrolyte, it is made up of the raw material including following weight portion: carboxymethyl
Sodium cellulosate 4.5 parts, succinate 1.25 parts, sulfoxide additive 2 parts, bismuth oxide 0.6 part, stannous sulfate 0.7 part,
32 parts of sulphuric acid, 63.5 parts of water.
Preferably, described sulphuric acid is concentrated sulphuric acid, and mass fraction is 97～99%.
Preferably, the Fe content of described sulphuric acid≤0.0009wt%, Cl content≤0.0009wt %.
Preferably, described water is deionized water, its electrical conductivity≤4 μ S/cm.
Preferably, described sulfoxide additive is dimethyl sulfoxide, diphenyl sulfoxide, thionyl chloride, sulfolane or dipropyl
The mixture of one or more in sulfone.
The beneficial effects of the present invention is: it can be avoided that lead-acid battery of electric vehicle early stage is held after electrolyte of the present invention uses
Amount decay, reduces cyclic process fluid loss, hinders the generation of bulky grain lead sulfate, and improves battery capacity and life-span.This
Bright electrolyte can improve the charge acceptance 15% of battery, hence it is evident that improves the cycle life about 20% of battery；Make battery-
It is the 70% the most qualified of room temperature capacity that the low temperature capacity of 15 DEG C improve 10%(standard to be-15 DEG C, and this battery can be accomplished
85%)；It is the 0.75% of normal capacity that battery over-discharge performance improves 6%(standard, and this battery can accomplish 0.80%).Sulfone
The use of class additive, can improve cycle performance and the high temperature performance of electrolyte.
Detailed description of the invention
Embodiment 1:
A kind of electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 4
Part, succinate 0.5 part, dimethyl sulfoxide 1 part, bismuth oxide 0.2 part, stannous sulfate 0.4 part, 30 parts of sulphuric acid, water
60 parts.
Embodiment 2:
A kind of electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 4.5
Part, succinate 1.25 parts, diphenyl sulfoxide 2 parts, bismuth oxide 0.6 part, stannous sulfate 0.7 part, 32 parts of sulphuric acid, water
63.5 parts.
Embodiment 3:
A kind of electromobile lead acid storage battery electrolyte, is made up of the raw material including following weight portion: sodium carboxymethyl cellulose 5
Part, succinate 2 parts, thionyl chloride 3 parts, bismuth oxide 1.0 parts, stannous sulfate 1.0 parts, 34 parts of sulphuric acid, water 67
Part.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvement, these improvement also should be regarded as the present invention's
Protection domain.
Claims (6)
1. an electromobile lead acid storage battery electrolyte, it is characterised in that be made up of the raw material including following weight portion: carboxylic first
Base sodium cellulosate 4-5 part, succinate 0.5-2 part, sulfoxide additive 1-3 part, bismuth oxide 0.2-1.0 part, sulfur
Acid stannous 0.4-1.0 part, sulphuric acid 30-34 part, water 60-67 part.
2. according to the electromobile lead acid storage battery electrolyte described in claim 1, it is characterised in that by including following weight portion
Raw material make: sodium carboxymethyl cellulose 4.5 parts, succinate 1.25 parts, sulfoxide additive 2 parts, bismuth oxide 0.6
Part, stannous sulfate 0.7 part, 32 parts of sulphuric acid, 63.5 parts of water.
3. according to claim 1 or described electromobile lead acid storage battery electrolyte, it is characterised in that described sulphuric acid is dense sulfur
Acid, mass fraction is 97～99%.
Electromobile lead acid storage battery electrolyte the most according to claim 1, it is characterised in that the Fe of described sulphuric acid contains
Amount≤0.0009wt%, Cl content≤0.0009wt %.
Electromobile lead acid storage battery electrolyte the most according to claim 1 and 2, it is characterised in that described water is deionization
Water, its electrical conductivity≤4 μ S/cm.
Electromobile lead acid storage battery electrolyte the most according to claim 1 and 2, it is characterised in that described sulfoxide additive
For the mixture of one or more in dimethyl sulfoxide, diphenyl sulfoxide, thionyl chloride, sulfolane or dipropyl sulfone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354283.9A CN106025378A (en) | 2016-05-25 | 2016-05-25 | Electrolyte of lead-acid storage battery of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354283.9A CN106025378A (en) | 2016-05-25 | 2016-05-25 | Electrolyte of lead-acid storage battery of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106025378A true CN106025378A (en) | 2016-10-12 |
Family
ID=57094929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354283.9A Pending CN106025378A (en) | 2016-05-25 | 2016-05-25 | Electrolyte of lead-acid storage battery of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106025378A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682468A (en) * | 2013-12-04 | 2014-03-26 | 河南超威电源有限公司 | Electromobile lead acid storage battery electrolyte |
| CN104779414A (en) * | 2015-04-18 | 2015-07-15 | 宁波维科电池股份有限公司 | Storage battery electrolyte and storage battery |
| CN105449292A (en) * | 2015-12-18 | 2016-03-30 | 浙江宝仕电源有限公司 | Storage battery electrolyte and storage battery |
-
2016
- 2016-05-25 CN CN201610354283.9A patent/CN106025378A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682468A (en) * | 2013-12-04 | 2014-03-26 | 河南超威电源有限公司 | Electromobile lead acid storage battery electrolyte |
| CN104779414A (en) * | 2015-04-18 | 2015-07-15 | 宁波维科电池股份有限公司 | Storage battery electrolyte and storage battery |
| CN105449292A (en) * | 2015-12-18 | 2016-03-30 | 浙江宝仕电源有限公司 | Storage battery electrolyte and storage battery |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |
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| WD01 | Invention patent application deemed withdrawn after publication |