CN106099223A - A kind of original position recovers the method for battery capacity - Google Patents
A kind of original position recovers the method for battery capacity Download PDFInfo
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- CN106099223A CN106099223A CN201610542653.1A CN201610542653A CN106099223A CN 106099223 A CN106099223 A CN 106099223A CN 201610542653 A CN201610542653 A CN 201610542653A CN 106099223 A CN106099223 A CN 106099223A
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- reducing agent
- vanadium
- battery capacity
- battery
- original position
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The present invention relates to battery applications and energy recovers field, a kind of method recovering battery capacity in position.After using with long-term discharge and recharge, the anode electrolyte of vanadium battery of capacity attenuation is as raw material, add organic and inorganic or its complex reducing agent wherein, with the pentavalent vanadium ion generation reduction reaction in anode electrolyte, make pentavalent vanadium ion be reduced to tetravalent vanadium ion, recover battery capacity.The present invention passes through to add the organic-inorganic reducing agent of proper proportion, the problem of the capacity attenuation in solution battery operation in anode electrolyte, it is achieved battery electrolyte recycling and recovery.Present invention process method is simple, processing ease, raw material are easy to get, and effect is obvious.
Description
Technical field
The present invention relates to battery applications and energy recovers field, a kind of method recovering battery capacity in position.
Background technology
Vanadium oxide reduction flow battery, is called for short vanadium cell.It is a kind of novel electrochemical energy storage system, with traditional electric power storage
Pond is compared, have can quickly, the feature such as Large Copacity discharge and recharge, self-discharge rate be low and battery structure is simple, it is full oxidoreduction
Electricity to sulfuric acid solution, it is not only conducting medium, realizes the electroactive material of energy storage especially, is vanadium cell energy storage and energy
The core that amount converts.The operation principle of vanadium cell is that in charging process, positive pole Vanadium valence is oxidized to 5 valencys, negative pole vanadium valency from 4 valencys
State reverts to 2 valencys from 3 valencys.Electric discharge is the reversible process of said process, along with the increase of vanadium cell discharge and recharge number of times, side reaction
Constantly occurring, the vanadium ion in anode electrolyte is mainly 5 valencys, and the vanadium ion in electrolyte liquid is mainly trivalent, just causes
Electrolyte liquid valence state is unbalance, and battery cannot discharge and recharge.At present, also do not have not unbalance about process electrolyte of vanadium redox battery and recover it
The document of capacity.
Summary of the invention
It is an object of the invention to provide a kind of method recovering battery capacity, the capacity attenuation in solution battery operation
Problem, it is achieved battery electrolyte recycling and recovery.
The technical scheme is that
A kind of original position recover battery capacity method, with long-term discharge and recharge use after, the anode electrolyte of vanadium battery of capacity attenuation
For raw material, the pentavalent vanadium ion added wherein in organic and inorganic or its complex reducing agent, with anode electrolyte occurs reduction anti-
Should, make pentavalent vanadium ion be reduced to tetravalent vanadium ion, recover battery capacity；Wherein, pending anode electrolyte of vanadium battery vanadium is dense
Degree 0.1 ~ 3mol/L.
Described original position recovers the method for battery capacity, organic reducing agent include following one or more: carboxylic acids,
Aldehydes, alcohols, unsaturated hydro carbons；Inorganic reducing agent include following one or more: sulphite, pyrosulfate, sulfuration
Thing, metal, metal-oxide, the salt of multivalent state metal.
Described original position recovers the method for battery capacity, organic reducing agent be following one or more: formic acid, second
Acid, ethanedioic acid, formaldehyde, acetaldehyde, methanol, ethanol, glycerol, ethylene, propylene, 1,3-butadiene；Inorganic reducing agent is following one
Or two or more: sodium pyrosulfate, potassium pyrosulfate, sodium sulfite, potassium sulfite, ferrum, Vanadium sesquioxide, vanadium trichloride.
Described original position recovers the method for battery capacity, and reducing agent uses complex reducing agent or single reducing agent, and it is combined
In reducing agent, organic reducing agent is (1: 1) ~ (1: 4) with the mass ratio of inorganic reducing agent.
Described original position recovers the method for battery capacity, and during reaction is carried out, battery carries out discharge and recharge operation, needs
The anode electrolyte liquid stream circulation of battery.
Described original position recovers the method for battery capacity, the pentavalent vanadium amount of pending electrolyte and the molar ratio of reducing agent
For (2: 1) ~ (1: 3).
Advantages of the present invention: 1, the present invention is by adding the organic-inorganic reduction of proper proportion in anode electrolyte
Agent, can solve the recovery regeneration issues after battery capacity declines, it is not necessary to extras, and the method using electronation, often
Pressure is carried out, and technique is simple, processing ease, and raw material is easy to get, and can substantially recover the capacity of battery, once recovers reaction and can recover
Battery capacity is to the 85% of its initial capacity.2, chemical levels of the present invention is few, reduces secondary pollution dangerous, and does not use two
Sulfur oxide, the toxic gas such as hydrogen sulfide, environmental pollution is little.3, the present invention consumes energy low, saves the energy, and electrolyte after treatment
Character is stable.4, of the present invention organic and inorganic or its complex reducing agent, its main component is environmentally friendly thing
Matter, will not produce adverse effect to environment, meet the feature of the environmental protection of vanadium cell, and consumption is low, to cost control not
Can affect greatly.
Detailed description of the invention
Embodiment 1
With lose 95% capacity anode electrolyte of vanadium battery as raw material, wherein in anode electrolyte, pentavalent vanadium ion is
1.34mol/L, tetravalent vanadium ion is 0.06mol/L, and anode electrolyte volume is 110ml.During electrolyte flow, just
Pole fluid reservoir adds ethanedioic acid 9 grams.After reacting 16 hours, capacity resuming to the 85.3% of former capacity.Electrolysis after recovery
Liquid is through charge-discharge test, coulombic efficiency 92.5%, energy efficiency 79%, voltage efficiency 73%.
Embodiment 2
With lose 50% capacity anode electrolyte of vanadium battery as raw material, wherein in anode electrolyte, pentavalent vanadium ion is
0.6mol/L, tetravalent vanadium ion is 0.6mol/L, and anode electrolyte volume is 110ml.During electrolyte flow, at positive pole
Add storage tank and enter ethanedioic acid 5 grams.After reacting 9 hours, capacity resuming to the 87.1% of former capacity.Electrolyte warp after recovery
Charge-discharge test, coulombic efficiency 93%, energy efficiency 77%, voltage efficiency 71.1%.
Claims (7)
1. the method recovering in situ battery capacity, it is characterised in that after using with long-term discharge and recharge, the vanadium electricity of capacity attenuation
Pond anode electrolyte is raw material, add wherein pentavalent vanadium in organic and inorganic or its complex reducing agent, with anode electrolyte from
There is reduction reaction in son, makes pentavalent vanadium ion be reduced to tetravalent vanadium ion, recover battery capacity；Wherein, pending vanadium cell is just
Pole electrolyte vanadium concentration 0.1 ~ 3mol/L.
2. according to described in claim 1 original position recover battery capacity method, it is characterised in that organic reducing agent include with
Descend one or more: carboxylic acids, aldehydes, alcohols, unsaturated hydro carbons；Inorganic reducing agent include following one or both with
Upper: sulphite, pyrosulfate, sulfide, metal, metal-oxide, the salt of multivalent state metal.
3. the method recovering battery capacity according to the original position described in claim 2, it is characterised in that organic reducing agent is following
One or more: formic acid, acetic acid, ethanedioic acid, formaldehyde, acetaldehyde, methanol, ethanol, glycerol, ethylene, propylene, 1,3-fourth two
Alkene；Inorganic reducing agent be following one or more: sodium pyrosulfate, potassium pyrosulfate, sodium sulfite, potassium sulfite, ferrum, three oxygen
Change two vanadium, vanadium trichloride.
4. the method recovering battery capacity according to the original position described in claim 2 or 3, it is characterised in that reducing agent uses multiple
Closing reducing agent or single reducing agent, in its complex reducing agent, organic reducing agent is (1: 1) with the mass ratio of inorganic reducing agent
~ (1: 4).
5. the method recovering battery capacity according to the original position described in claim 1, it is characterised in that carry out process in reaction
In, battery carries out discharge and recharge operation, needs the anode electrolyte liquid stream of battery to circulate.
6. the method recovering battery capacity according to the original position described in claim 1, it is characterised in that the five of pending electrolyte
Valency vanadium amount is (2: 1) ~ (1: 3) with the molar ratio of reducing agent.
7. the method recovering battery capacity according to the original position described in claim 1, it is characterised in that the reduction reaction time is 8-
48 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542653.1A CN106099223A (en) | 2016-07-11 | 2016-07-11 | A kind of original position recovers the method for battery capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610542653.1A CN106099223A (en) | 2016-07-11 | 2016-07-11 | A kind of original position recovers the method for battery capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106099223A true CN106099223A (en) | 2016-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610542653.1A Pending CN106099223A (en) | 2016-07-11 | 2016-07-11 | A kind of original position recovers the method for battery capacity |
Country Status (1)
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| CN (1) | CN106099223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261889A (en) * | 2018-11-30 | 2020-06-09 | 中国科学院大连化学物理研究所 | Online recovery method for positive electrolyte of zinc-iron flow battery |
-
2016
- 2016-07-11 CN CN201610542653.1A patent/CN106099223A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111261889A (en) * | 2018-11-30 | 2020-06-09 | 中国科学院大连化学物理研究所 | Online recovery method for positive electrolyte of zinc-iron flow battery |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |