CN2786802Y - Vanadium ion liquid current accumulator - Google Patents
Vanadium ion liquid current accumulator Download PDFInfo
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- CN2786802Y CN2786802Y CNU2005200497650U CN200520049765U CN2786802Y CN 2786802 Y CN2786802 Y CN 2786802Y CN U2005200497650 U CNU2005200497650 U CN U2005200497650U CN 200520049765 U CN200520049765 U CN 200520049765U CN 2786802 Y CN2786802 Y CN 2786802Y
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- battery
- vanadium
- accumulator
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Abstract
The utility model relates to a vanadium-ion liquid-current accumulator. The traditional accumulators, such as a lead-acid accumulator, a nickel cadmium accumulator, etc., have the defects of short service life, long charge and discharge time and high pollution by that power and energy strongly depend on the amount of a plate area, an active substance, etc. The utility model belongs to the new energy field of a liquid-current accumulator technique. The vanadium-ion liquid-current accumulator uses vanadium-ions as the active substance on the electrochemical principle, and the vanadium-ions with different chemical valences generate oxidation-reduction reaction to store or release electric energy. The utility model has the advantages of deep charging and discharging resistant performance and long service life, and is a cleaning energy storage device.
Description
Technical field
The utility model relates to the flow battery of new energy field, particularly a kind of vanadium ion liquid flow accumulator battery.
Background technology
Existing storage battery causes battery failure because of the problems such as softening, come off of active material mostly, because of its active material be solid-state, as the lead acid accumulator sun: brown lead oxide, the moon: lead sponge.Their manufactures are: metallic lead is worn into and is added water behind the powder and add sulfuric acid and be modulated into lead plaster, be coated in then on the stereotype grid, by solidify, dry, operation such as change into after, positive negative electrode generates brown lead oxide (PbO respectively
2), lead sponge (Pb), these active materials must firmly combine with the stereotype grid, could play the purpose of electron transport when power conversion takes place for they.From its reaction equation:
Be accompanied by the state variation of reactive material as can be seen in the reaction, and three kinds of solid matters density have nothing in common with each other PbO
2Be 9.375g/cm
3, Pb is 11.35g/cm
3, PbSO
4Be 6.2g/cm
3So, in charge and discharge process, just have significant change in volume, especially to fill when putting deeply more obviously deeply, this change in volume is as easy as rolling off a log to cause the active material of battery to soften, come off, and general storage battery will lose efficacy after through hundreds of time charge and discharge cycles.Existing storage battery is solid-state because of active material, the competence exertion effect together of active material, electrode and electrolyte, and power of its output and the energy of being stored are subjected to that polar board surface amasss, the volume restrictions of battery case.
The utility model content
The purpose of this utility model provide a kind ofly can the anti-degree of depth discharge and recharge, high-multiplying power discharge and having extended cycle life, and can realize momentary charge, can make the vanadium ion liquid flow accumulator battery of reserve type, accumulation energy type and trailed model power supply.
The purpose of this utility model realizes by following manner:
The utility model is made up of the battery unit of two electrolysis liquid pools and several layers, the electrolysis liquid pool holds positive and negative utmost point vanadium ion electrolyte respectively, described several layers battery unit is superimposed, each battery unit is formed by stacking successively by bipolar electrode, felt film, the framework that flows, barrier film, the framework that flows, felt film, bipolar electrode, and barrier film is separated into two half-cells of positive and negative with monocell; Each electrolysis liquid pool is furnished with a pump, links to each other with each half-cell with closed conduit; Mobile framework is the flow through passage of each half-cell of closed conduit, and positive and negative electrolysis liquid pool is communicated with the cloudy half-cell of sun respectively.
Described anolyte contains the H of 8-10mol/L
2SO
4And (the VO of 1～2mol/L
2)
2SO
4Solution, surplus are water; Catholyte contains the H of 8-10mol/L
2SO
4And the VSO of 1～2mol/L
4Solution, surplus are water.
When flowing in the battery unit of electrolyte at each layer of storing energy, electronics just has the trend that flow to external circuit, connects external circuit and will produce electric current, Here it is discharge process.When external circuit was imposed to battery with electric current, opposite process had taken place, and Here it is charges for the electrolyte of battery unit, and then carries telegram in reply to separate liquid pool by pump.(seeing accompanying drawing 2)
Vanadium ion liquid flow accumulator battery is a kind of device that chemical energy in the electrolyte and electric energy can be changed mutually, and its electrolyte is to be dissolved in the sulfuric acid solution by vanadic oxide to form.Because this electrochemical reaction is reversible, so such battery both can charge and also can discharge.Along with two kinds of valent variations of vanadium ion, electric energy and chemical energy are changed mutually when discharging and recharging.(seeing accompanying drawing 3).
The chemical reaction expression formula:
Negative electrode:
E
0＝-0.26V(1)
Anode:
E
0＝1.00V(2)
The battery rated voltage is the 1.2V/ unit, and battery is under 25 ℃, and during the active material concentration of 1mol/L, normal voltage is: the 1.26V/ unit.It is raw material that the positive cloudy electrolyte of this battery all adopts vanadic oxide, and the theoretical discharge capacity of vanadic oxide is 3.396 gram/ampere-hours.The specific power of battery reaches 18w/kg, and specific energy reaches 25Wh/kg.
A most important character of the present utility model is, peak power depends on the total surface area of battery pile, and what of electrolyte the electric weight of battery then depend on.The active material of battery is liquid, can flow freely, and its electrode and electrolyte not necessarily are put into one, and this just means the restriction that can not be subjected to battery case of depositing of energy.Obtain by the electrolyte that provides in battery unit that the energy of different brackets is can be from battery pile different or the unit group.Not necessarily need voltage to battery pile charging and discharge with same levels.For example, this battery can charge and then can carry out with different voltage at another part of battery pile with the voltage discharge of series-connected cell heap.
Cell active materials of the present utility model is liquid, be liquid phase in the entire reaction, do not have the active material problem of softening, come off, therefore can the anti-degree of depth discharge and recharge, high-multiplying power discharge and having extended cycle life, and can charge with the mode of changing solution, realize momentary charge.So such battery can be made reserve type, accumulation energy type and trailed model power supply, is of wide application.As be used for the place that theater, hospital etc. need Emergency Light; For submarine, ocean-going ship provide electric power etc.; Can be used for the vehicles such as electric automobile, submarine, can be used as backwoodsman energy storage and electricity generation system; Can be used for electricity consumption places such as communication, railway and radio repeater station; Can be used as mansion, airport, programme-controlled exchange station stand-by power supply; The supporting energy storage device of clean electric power generation systems such as solar energy and be used for peak load regulation network.Such battery is a kind of cleanliness without any pollution, regenerative resource, not heavy metals such as the lead that generation endangers to human body, cadmium, mercury.
Description of drawings
Fig. 1 is the utility model battery unit structure schematic diagram.
Fig. 2 is the utility model battery system structure schematic diagram.Fig. 3 is the utility model principle schematic.
The 1-barrier film 2-framework 3-bipolar electrode 4-felt film 5-anolyte import of flowing
The outlet of 6-anolyte outlet 7-catholyte import 8-catholyte
9-anolyte 10-catholyte 11-closed conduit 12-electrolysis liquid pool
13-pump 14-battery case 15-termination electrode 16-extraction electrode
A-represents a battery unit
Concrete execution mode
The battery unit of two electrolysis liquid pools 12 and several layers is formed, and electrolysis liquid pool 12 holds positive and negative utmost point electrolyte 9,10 respectively, and anolyte 9 contains the H of 9mol/L
2SO
4And (the VO of 1～2mol/L
2)
2SO
4Solution (the best is 2mol/L), surplus is a water; Catholyte 10 contains the H of 9mol/L
2SO
4And the VSO of 1～2mol/L
4Solution (the best is 2mol/L), surplus is a water.Described several layers battery unit is superimposed, each battery unit is formed by stacking successively by bipolar electrode 3, felt film 4, the framework 2 that flows, barrier film 1, the framework 2 that flows, felt film 4, bipolar electrode 3, and barrier film 1 is separated into two half-cells of positive and negative with monocell; Each electrolysis liquid pool 12 is furnished with a pump 13, links to each other with each half-cell with closed conduit 11; Flow framework 2 for the flow through passage of each half-cell of closed conduit 11, positive and negative electrolysis liquid pool 12 is communicated with the cloudy half-cell of sun respectively.(seeing accompanying drawing 1)
When flowing in the battery unit of electrolyte at each layer of storing energy, electronics just has the trend that flow to external circuit, connects external circuit and will produce electric current, Here it is discharge process.When external circuit was imposed to battery with electric current, opposite process had taken place, and Here it is charges for the electrolyte of battery unit, and then carries telegram in reply to separate liquid pool by pump.(seeing accompanying drawing 2)
Claims (1)
1, vanadium ion liquid flow accumulator battery, it is characterized in that: the battery unit by two electrolysis liquid pools and several layers is formed, the electrolysis liquid pool holds positive and negative utmost point vanadium ion electrolyte respectively, described several layers battery unit is superimposed, each battery unit is formed by stacking successively by bipolar electrode, felt film, the framework that flows, barrier film, the framework that flows, felt film, bipolar electrode, and barrier film is separated into two half-cells of positive and negative with monocell; Each electrolysis liquid pool is furnished with a pump, links to each other with each half-cell with closed conduit; Mobile framework is the flow through passage of each half-cell of closed conduit, and positive and negative electrolysis liquid pool is communicated with the cloudy half-cell of sun respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200497650U CN2786802Y (en) | 2005-04-15 | 2005-04-15 | Vanadium ion liquid current accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200497650U CN2786802Y (en) | 2005-04-15 | 2005-04-15 | Vanadium ion liquid current accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786802Y true CN2786802Y (en) | 2006-06-07 |
Family
ID=36775363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200497650U Expired - Fee Related CN2786802Y (en) | 2005-04-15 | 2005-04-15 | Vanadium ion liquid current accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786802Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651216B (en) * | 2009-08-03 | 2011-09-28 | 湖南维邦新能源有限公司 | Receiving frame for redox flow cell and redox flow cell stack containing same |
| CN101814618B (en) * | 2009-02-23 | 2012-05-30 | 北京金能燃料电池有限公司 | Flow battery |
| CN102867974A (en) * | 2012-09-26 | 2013-01-09 | 贵州省岑巩县银峰矿业有限公司长沙分公司 | Sealing structure and electric pile of liquid flow battery |
| CN102866094A (en) * | 2012-09-09 | 2013-01-09 | 中国科学院金属研究所 | Test method and test device of permeability of diaphragm quadrivalence vanadium ion |
-
2005
- 2005-04-15 CN CNU2005200497650U patent/CN2786802Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814618B (en) * | 2009-02-23 | 2012-05-30 | 北京金能燃料电池有限公司 | Flow battery |
| CN101651216B (en) * | 2009-08-03 | 2011-09-28 | 湖南维邦新能源有限公司 | Receiving frame for redox flow cell and redox flow cell stack containing same |
| CN102866094A (en) * | 2012-09-09 | 2013-01-09 | 中国科学院金属研究所 | Test method and test device of permeability of diaphragm quadrivalence vanadium ion |
| CN102866094B (en) * | 2012-09-09 | 2015-02-25 | 中国科学院金属研究所 | Test method and test device of permeability of diaphragm quadrivalence vanadium ion |
| CN102867974A (en) * | 2012-09-26 | 2013-01-09 | 贵州省岑巩县银峰矿业有限公司长沙分公司 | Sealing structure and electric pile of liquid flow battery |
| CN102867974B (en) * | 2012-09-26 | 2013-11-06 | 湖南省银峰新能源有限公司 | Sealing structure and electric pile of liquid flow battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN FENGRI POWER ELECTRICAL CO., LTD. Free format text: FORMER OWNER: CHANGSHA RIFENG ELECTRICAL GROUP CO., LTD. Effective date: 20100622 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 410323 LIUYANG BIOMEDICINE INDUSTRY PARK, LIUYANG CITY, HUNAN PROVINCE TO: 410331 FENGRI ELECTRICAL (GROUP) CO., LTD., INDUSTRY PARK, LIUYANG CITY, HUNAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100622 Address after: 410331 Liuyang City Industrial Park, Hunan Province, Japan electric group Limited by Share Ltd Patentee after: Hu'nan Fengri Power and Electric Co., Ltd. Address before: 410323 Liuyang biomedical industry park, Liuyang, Hunan Patentee before: Fengri Electric Group Co., Ltd., Changsha |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060607 Termination date: 20120415 |