CN103268962A - Electrolyte of lead-acid accumulator - Google Patents
Electrolyte of lead-acid accumulator Download PDFInfo
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- CN103268962A CN103268962A CN2013101947822A CN201310194782A CN103268962A CN 103268962 A CN103268962 A CN 103268962A CN 2013101947822 A CN2013101947822 A CN 2013101947822A CN 201310194782 A CN201310194782 A CN 201310194782A CN 103268962 A CN103268962 A CN 103268962A
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- Prior art keywords
- electrolyte
- lead
- acid accumulator
- sulfate
- accumulator
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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
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses an electrolyte of a lead-acid accumulator. According to the electrolyte, sulfuric acid is used as a main component, and 20 to 60 g/L sulfates and 1 to 10 g/L organic complexing agent are added. According to the lead-acid accumulator produced by using the electrolyte formula disclosed by the invention, dissolved metals on an anode can be effectively prevented from transferring mass to a cathode, and the sulfates are added, so that the charge-discharge cycle performance is improved and the service life of the accumulator can be prolonged.
Description
Technical field
The invention belongs to the lead accumulator technical field, relate in particular to the electrolyte of lead acid accumulator.
Background technology
For the environmental protection purpose, replace traditional oil, the contour pollution power sources of coal at present, electric energy is more and more paid attention to and is used.And lead acid accumulator is the major impetus source of present electric automobile, bicycle etc.But its reliability.Non-maintaining property, dark cycle battery capacity attenuation and corrosion resistance all have much room for improvement.The electrolyte overwhelming majority of at present traditional lead acid accumulator adopts sulfuric acid, in charge and discharge process, have dissolving metal in positive pole and the negative pole and enter in the electrolyte, and the generation mass transfer adsorbs at both positive and negative polarity in electrolytic process, influence the activity of both positive and negative polarity, reduce the charging and discharging of accumulator ability.
Summary of the invention
Goal of the invention: at the problem and shortage of above-mentioned existing existence, the purpose of this invention is to provide a kind of lead-acid accumulator electrolyte, the present invention is by adding additive in electrolyte, thereby improved the charging and discharging of accumulator circulation ability, dissolving mass transfer between prior effective inhibition negative or positive electrode metal ingredient, the useful life of having improved storage battery.
Technical scheme: for achieving the above object, the present invention by the following technical solutions: a kind of lead-acid accumulator electrolyte, this electrolyte are main component with sulfuric acid, and add the sulfate of 20～60g/L, the organic complexing agent of 1～10g/L.
As preferably, described sulfate is one or more mixture of lithium sulfate, sodium sulphate, potassium sulfate, magnesium sulfate or aluminum sulfate.
As preferably, described organic complexing agent is HEDP and salt, diethyl phthalate DEP, ethylenediamine tetra-acetic acid and salt thereof.
Beneficial effect: compared with prior art, the present invention has the following advantages: the lead acid accumulator of using electrolyte prescription production of the present invention can effectively avoid dissolution of metals mass transfer on the positive pole to negative pole, and in conjunction with adding sulfate, cycle charge discharge electrical property and the useful life of having improved storage battery.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Embodiment 1
Lead-acid accumulator electrolyte is main component with sulfuric acid, and adds sodium sulphate, the magnesium sulfate of 15g/L and the HEDP (HEDP) of 6.5g/L of 20g/L.The electrolyte of this prescription is injected the common lead acid accumulator, and carry out the charging performance test, the charge and discharge cycles test is carried out in degree of depth 8h discharge, 8h charging with 85%.This battery still has the battery capacity more than 86% through 400 loop tests.And the battery capacity of conventional accumulators has dropped to below 70%, must scrap.Antimony metal content reaches 2.1g/L in the analysis electrolyte by detecting in addition, and the antimony content of electrolyte is 0.6g/L in the common batteries, the transfer enrichment of antimony metal on negative pole that the effective inhibition of HEDP complexing agent among the present invention is dissolved from anode plate grid is described, and the negative pole of antimony on negative pole can reduce charging voltage, and storage battery can not charge normal.Antimony metal is transferred to the inefficacy that negative pole also can cause organic expander in addition, reduces effective ratio area.Therefore additive of the present invention has improved charging and discharging of accumulator performance and useful life.
Embodiment 2
Lead-acid accumulator electrolyte is main component with sulfuric acid, and adds sodium sulphate, the lithium sulfate of 8g/L and the diethyl phthalate DEP of 2g/L of 40g/L.The electrolyte of this prescription is injected the common lead acid accumulator, and carry out the charging performance test, the charge and discharge cycles test is carried out in degree of depth 8h discharge, 8h charging with 85%.This battery still has the battery capacity more than 84% through 400 loop tests.And the battery capacity of conventional accumulators has dropped to below 70%, must scrap.
Claims (3)
1. lead-acid accumulator electrolyte, it is characterized in that: this electrolyte is main component with sulfuric acid, and adds the sulfate of 20～60g/L, the organic complexing agent of 1～10g/L.
2. according to the described lead-acid accumulator electrolyte of claim 1, it is characterized in that: described sulfate is one or more the mixing in lithium sulfate, sodium sulphate, potassium sulfate, magnesium sulfate or the aluminum sulfate.
3. according to the described lead-acid accumulator electrolyte of claim 2, it is characterized in that: described organic complexing agent is HEDP and salt, diethyl phthalate DEP, ethylenediamine tetra-acetic acid and salt thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101947822A CN103268962A (en) | 2013-05-23 | 2013-05-23 | Electrolyte of lead-acid accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101947822A CN103268962A (en) | 2013-05-23 | 2013-05-23 | Electrolyte of lead-acid accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103268962A true CN103268962A (en) | 2013-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101947822A Pending CN103268962A (en) | 2013-05-23 | 2013-05-23 | Electrolyte of lead-acid accumulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN103268962A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099209A (en) * | 2016-06-17 | 2016-11-09 | 湖北骆驼海峡新型蓄电池有限公司 | A kind of power lead-acid storage battery electrolysis additive and preparation method thereof |
| CN108306056A (en) * | 2017-01-12 | 2018-07-20 | 广州丰江实业有限公司 | A kind of preparation process of lead-acid accumulator electrolyte |
| CN112103562A (en) * | 2020-10-16 | 2020-12-18 | 江苏师范大学 | Electrolyte additive, electrolyte containing additive and lithium metal battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221992A (en) * | 1997-12-31 | 1999-07-07 | 大连泰基能源有限公司 | Fully sealed maintenance-free lead-acid battery electrolyte |
| US5945236A (en) * | 1998-08-10 | 1999-08-31 | Willis; John | Lead-acid battery electrolyte fluid solution additive |
| CN101853960A (en) * | 2009-04-03 | 2010-10-06 | 王海湘 | Lead-acid battery active agent |
| CN103050738A (en) * | 2012-12-25 | 2013-04-17 | 深圳市佰特瑞储能系统有限公司 | Lead acid storage battery electrolyte additive and preparation method thereof |
-
2013
- 2013-05-23 CN CN2013101947822A patent/CN103268962A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221992A (en) * | 1997-12-31 | 1999-07-07 | 大连泰基能源有限公司 | Fully sealed maintenance-free lead-acid battery electrolyte |
| US5945236A (en) * | 1998-08-10 | 1999-08-31 | Willis; John | Lead-acid battery electrolyte fluid solution additive |
| CN101853960A (en) * | 2009-04-03 | 2010-10-06 | 王海湘 | Lead-acid battery active agent |
| CN103050738A (en) * | 2012-12-25 | 2013-04-17 | 深圳市佰特瑞储能系统有限公司 | Lead acid storage battery electrolyte additive and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈代武等: ""铅酸蓄电池添加剂的研究进展"", 《电源技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099209A (en) * | 2016-06-17 | 2016-11-09 | 湖北骆驼海峡新型蓄电池有限公司 | A kind of power lead-acid storage battery electrolysis additive and preparation method thereof |
| CN108306056A (en) * | 2017-01-12 | 2018-07-20 | 广州丰江实业有限公司 | A kind of preparation process of lead-acid accumulator electrolyte |
| CN112103562A (en) * | 2020-10-16 | 2020-12-18 | 江苏师范大学 | Electrolyte additive, electrolyte containing additive and lithium metal battery |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130828 |