CN102195097A - Nano colloidal silica lead-acid battery - Google Patents
Nano colloidal silica lead-acid battery Download PDFInfo
- Publication number
- CN102195097A CN102195097A CN2010101174801A CN201010117480A CN102195097A CN 102195097 A CN102195097 A CN 102195097A CN 2010101174801 A CN2010101174801 A CN 2010101174801A CN 201010117480 A CN201010117480 A CN 201010117480A CN 102195097 A CN102195097 A CN 102195097A
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- CN
- China
- Prior art keywords
- lead
- sio2
- acid battery
- colloidal silica
- battery
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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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Abstract
The invention relates to a nano colloidal silica lead-acid battery, which prolongs the service life and increases the capacitance by overcoming the defect of early-stage capacitance loss of the lead-acid battery and belongs to the technical field of surface chemical and electrochemical kinetics. The accumulator is characterized in that the nano gas phase silicon dioxide (SiO2) (Fureed SiO2) (familiarly known as white carbon black) is applied to the regular valve-regulated lead-acid (VRLA) battery structure. The nano colloidal silica lead-acid battery is characterized by prolonging the service life and increasing the capacitance by overcoming three kinds of early-stage capacitance losses of the battery.
Description
Technical field
The present invention relates to a kind of nano silica gel lead acid accumulator, the solution lead acid accumulator overcomes early stage capacitance loss and reaches the long-life and increase jumbo problem.Belong to surface chemistry and electrochemistry power technology field.
Background technology
Inorganic nano colloidal silica (Gelled) is a kind of dispersion, is the special state that material exists, rather than a kind of special material.The know-why location of current gelled lead acid battery is inaccurate, be electrochemical thermodynamics problem or electrochemical kinetics problem, if press the technology path of colloid electrolyte lead-acid accumulator location, basic principle is just explained obstructed, because of it does not participate in into the fluidisation reaction.Correct is goes explanation with the method for the basic principle electrochemical kinetics of surface chemistry.The inorganic nano colloidal silica lead acid accumulator high nano fumed silica (Furned SiO2) of purity, colloidal sio2 is to analyze as the theory of nano material semiconductor doping, surface modification for catalysis agent, if according to the electrochemical catalysis theory, then SiO2 is as catalyst carrier, the common catalysis of adsoption catalysis metallic.Various particles are anchored on the surface of carrier by various forms of bondings, and the surface affects activity of such catalysts strongly through the huge surface area of the nano particle carrier of modification and the overlapping activated carrier of microparticle surface doping electron orbit.And SiO2, Si (OH), H2SiO3 etc. participate in into the stream reaction not according to electrochemical thermodynamics rule Faraday's laws of electrolysis in lead acid accumulator: do not have the participation of compounds such as SiO2, H2SiO3 in the double fluid reaction, so it is not a reactant, see reaction equation:
Pb+2H2SO4+PbO2＝＝2PbSO4+2H2O。
The pH value has the greatest impact to the gelling time of Ludox, when Ludox pH value is near 7 gelling the fastest, specific area and pore volume maximum when the pH value is 2～4, through the test also be confirmed.And in significant acidity, alkaline range, gelling time greatly prolongs, and is isoelectric point during the pH=2 left and right sides, and collosol and gel is the slowest.If contain electrolyte, gel can conduct electricity in the gel, participates in the transfer function of the electric charge of semiconductor electronic and electrolyte.When the gel degree was very big, the ion migration velocity reduced, and electric conductivity value will descend.
Summary of the invention
Overcome early stage capacitance loss and reach the long-life and increase jumbo problem in order to solve lead acid accumulator, the present invention proposes a kind of nano silica gel lead acid accumulator.
Technical characterictic of the present invention is that nanometer gas phase sio2 (Fureed SiO2) (being commonly called as white carbon) is applied among the structure of conventional VRLA storage battery.
The present invention has three kinds of early stage capacitance loss of the storage battery of overcoming and reaches excellent characteristic such as long-life, big capacity.
Embodiment
The application of nano silica gel in lead accumulator is made.Adopting nanometer gas phase sio2 (Fureed SiO2) to be commonly called as white carbon, with the gelled lead acid battery function admirable of its making, mainly is that the aerosil degree of purity is good, and granularity also is easy to adjust, so active good.Through concrete test, with the structure of conventional VRLA storage battery, with common AGM glass fibre separator, the AGM dividing plate also is that SiO2 is that main component and polar molecule H2O aquation and sulfuric acid reaction are also done catalytic carrier.The pregnant solution type structure, a small amount of aerosil addition and other trace active additives.Just can obtain high performance electric current output, the premium properties under the dark cycling condition, high power density, high charge efficiency (99.5%), overcharging resisting, charging good reproducibility, charge stability good (heat resistanceheat resistant is out of control) as the storage battery in the power-supply system, requires its life period non-maintaining, long-life, wide working temperature, the watt-hour price is low, excellent volumetric specific energy, gravimetric specific energy, self-discharge rate is low.Increase by three times as if pressing charged output of half charged standard work (Partial-stage of charge) at the life period energy with 40%～60%.In life test along with slow than common VRLA liquid formula storage battery decay of its capacity of increase of cycle-index.The most suitable renewable energy resources wind energy, the solar power generation energy-storage system of being applied in of this lead acid accumulator, electric power combined floodgate DC power system, the communication spare power supplies system, government departments and institutions such as military affairs, public security, commodity inspection, customs, institution of higher learning, scientific research institutions, hospital, bank, hotel, restaurant, market etc. need the department of stand-by power supply.
Claims (1)
1. nano silica gel lead acid accumulator is characterized in that nanometer gas phase sio2 (Fureed SiO2) (being commonly called as white carbon) is applied among the structure of conventional VRLA storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101174801A CN102195097A (en) | 2010-03-04 | 2010-03-04 | Nano colloidal silica lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101174801A CN102195097A (en) | 2010-03-04 | 2010-03-04 | Nano colloidal silica lead-acid battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102195097A true CN102195097A (en) | 2011-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101174801A Pending CN102195097A (en) | 2010-03-04 | 2010-03-04 | Nano colloidal silica lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102195097A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10044037B2 (en) | 2015-03-02 | 2018-08-07 | Dun Chi | Manufacturing a lead-acid battery that includes a composite that includes lead oxide and a nanomaterial |
| CN110261787A (en) * | 2019-07-09 | 2019-09-20 | 哈尔滨工业大学 | A kind of optimum heating power method selected when cylinder ternary lithium ion battery thermal runaway test |
-
2010
- 2010-03-04 CN CN2010101174801A patent/CN102195097A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10044037B2 (en) | 2015-03-02 | 2018-08-07 | Dun Chi | Manufacturing a lead-acid battery that includes a composite that includes lead oxide and a nanomaterial |
| US10050269B2 (en) | 2015-03-02 | 2018-08-14 | Dun Chi | Manufacturing a lead-acid battery that includes a composite that includes lead oxide and a nanomaterial |
| CN110261787A (en) * | 2019-07-09 | 2019-09-20 | 哈尔滨工业大学 | A kind of optimum heating power method selected when cylinder ternary lithium ion battery thermal runaway test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |