CN206758560U - A kind of energy storage and conversion system based on solid oxide cell - Google Patents
A kind of energy storage and conversion system based on solid oxide cell Download PDFInfo
- Publication number
- CN206758560U CN206758560U CN201720322878.6U CN201720322878U CN206758560U CN 206758560 U CN206758560 U CN 206758560U CN 201720322878 U CN201720322878 U CN 201720322878U CN 206758560 U CN206758560 U CN 206758560U
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- Prior art keywords
- water
- sofc
- hydrogen
- energy
- solid oxide
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The utility model discloses a kind of energy storage and conversion system based on solid oxide cell, solid oxide cell (SOC) system of SOFC (SOFC) and electrolytic tank of solid oxide (SOEC) composition, water is generated while SOFC mode of operations generate electricity, water supplies SOFC work again with the nano metal reaction generation hydrogen on carrier, hydrogen；Water electrolysis hydrogen producing gas, hydrogen are supplied into SOEC electrolysis again with the nano-metal-oxide reaction generation water on carrier, water using the electric energy from the solar wind-energy battery in SOEC mode of operations.Fuel is carried out circular regeneration as intermediate conversion material using metal and metal oxide, fuel and lasting sealable purpose needn't be frequently passed through to reach, while avoid causing many impurity because being repeatedly loaded into fuel to damage the phenomenon of battery.
Description
Technical field
The utility model belongs to technical field of energy utilization, be related to a kind of energy storage based on solid oxide cell with
Conversion system, more particularly, to one kind by metal and convert metal oxides, so as to realize that solid oxide cell energy stores up
Deposit the system with conversion.
Background technology
SOFC (SOFC) is that to have invented be converted into the efficient apparatus of electric energy by chemical fuel,
Its soild oxide made of ceramics is formed, and has the advantages such as efficient, modularization, easy addressing and low emission.Soild oxide
Electrolytic cell (SOEC) is the inverse operation of SOFC, is a kind of electric energy and heat energy to be converted into the efficient of chemical energy
The energy conversion device of rate, low stain.Due to energy conversion efficiency is high, all solid state, modularization assembling, no pollution etc. are excellent
Point, SOFC and electrolytic tank of solid oxide are in large-scale centralized power supply, medium-sized point of electricity and small-sized household thermoelectricity
The civil area such as alliance and energy storage, and the mobile accumulation power supply field such as ship power power supply, vehicular traffic electrical source of power is used as,
All have broad application prospects.
Wind energy and solar energy are reproducible clean energy resourcies, are effectively replacing for the fossil energies such as coal, oil, natural gas
Generation, but because wind energy and solar energy have frequency, the electricity of randomness, Wind turbine and solar panel institute electromotive power output
Pressure becomes with wind speed and light radiation, and generated energy is unstable.Prior art proposes to convert wind energy and solar energy using SOEC
Stored for stable chemical energy, recycle SOFC chemical energy is converted into the mode of operation of electric energy output, improved with this due to wind
Can and solar energy unstability and cause the present situation being difficult by.
But SOFC and SOEC systems separate in the prior art, each need to be passed through the gas for maintaining its operation, increase
Gas prepares storage cost, and is difficult to real, complete system coupling, and SOFC is constantly passed through fuel (H2、CH4
Deng) in anode reaction, existing can not be fully sealed and the problems such as fuel impurity, easily cause fuel cell damage.Such as combustion
Common sulfur impurity in material, can not normal operation up to SOFC if 1% if its content.
As can be seen here, prior art is improved up for further.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provide a kind of energy storage based on solid oxide cell with
Conversion system, so as to realize that SOFC and SOEC systems couple, operating cost is reduced, increases service life.
Technical scheme is used by the utility model solves its technical problem：
The solid oxide cell of SOFC (SOFC) and electrolytic tank of solid oxide (SOEC) composition
(SOC) system, water, water and the nano metal reaction generation hydrogen on carrier, hydrogen are generated while SOFC mode of operations generate electricity
Gas supplies SOFC work again；In SOEC mode of operations using the electric energy from the solar wind-energy battery by water electrolysis hydrogen producing
Gas, hydrogen supply SOEC electrolysis again with the nano-metal-oxide reaction generation water on carrier, water.
The beneficial effects of the utility model are to carry out fuel as intermediate conversion material using metal and metal oxide
Circular regeneration, fuel and lasting sealable purpose needn't be frequently passed through to reach, while avoid leading because being repeatedly loaded into fuel
Many impurity is caused to damage the phenomenon of battery.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is existing SOFC and SOEC system operations schematic diagram.
Fig. 2 is illustrated to be described in the utility model by SOFC the and SOEC system operations of metal and convert metal oxides
Figure.
Fig. 3 is SOFC the and SOEC system operations converted described in the utility model embodiment 1 by metallic iron and iron oxide
Schematic diagram.
Embodiment
Further details of explanation the utility model by way of examples below, but the utility model is not limited to reality
Apply example.
The solid oxide cell of SOFC (SOFC) and electrolytic tank of solid oxide (SOEC) composition
(SOC) system.
SOFC mode of operations：
Oxygen in cathode side air is reduced to oxonium ion by electrolyte.
1/2O2+2e-→O2- (1)
The hydrogen for the amount of skipping over is passed through in anode, is sealed, oxonium ion is combined generation water with hydrogen through electrolyte into anode,
And electronics is discharged to external circuit, reach the purpose of generating.
H2+O2-→H2O+2e- (2)
Overall reaction is：
H2+1/2O2→H2O (3)
Because iron powder does not react completely, the water of generation continues reaction generation iron oxide and released under certain condition with iron powder again
Release hydrogen.
Fe+H2O→Fe3O4+H2 (4)
The hydrogen that this reaction is released is combined with oxonium ion again, completes (3) reaction, then completes (4) reaction, and (4) reaction is released
The hydrogen put enters back into (3) reaction, and so constantly circulation is gone down, and is constantly generated electricity while constantly consuming iron powder.That is SOFC generates electricity
While generate water, water supplies SOFC and worked again with the metallic iron reaction generation hydrogen on carrier, hydrogen；
SOEC mode of operations：
Water is electrolysed in the case where wind energy and solar energy provide energy.Water obtains electricity in hydrogen electrode (negative electrode) from external circuit
Son is broken down into H2And O2-, caused H2Escaped from hydrogen electrode：
H2O+2e-→H2+O2- (5)
O2-Then by electrolyte to oxygen electrode side (anode-side), lose and be electronically generated oxygen.
Oxygen electrode (anode)：
2O2-→O2+4e- (6)
Overall reaction is：
H2O→H2+1/2O2 (7)
Iron oxide is reduced to iron by caused hydrogen, and reaction equation is as follows：
H2+Fe3O4→Fe+H2O (8)
The water of reaction generation enters back into (7) reaction, and the hydrogen of generation enters back into (8) reaction, such constantly cyclic oxidation iron
Energy storage is carried out while being reduced into iron.The electric energy of solar energy and wind generator is used by water electrolysis hydrogen producing gas, hydrogen and carrier
On nano-sized iron oxide reaction generation water, water supply again SOEC be electrolysed.
It should be noted that under the guidance of this specification, any equivalent substitute side made by those skilled in the art
Formula, or obvious variant, all should be within the scope of protection of the utility model.
Claims (2)
1. a kind of energy storage and conversion system based on solid oxide cell, the system include：
Solar energy and wind energy battery, for solar wind-energy to be converted into electric energy, and supplied for user and electrolytic tank of solid oxide
Electricity；
The SOC systems of SOFC and electrolytic tank of solid oxide composition, generated electricity in SOFC mode of operations same
Shi Shengcheng water, water supply SOFC work again with the nano metal reaction generation hydrogen on carrier, hydrogen；In SOEC mode of operations
It is using the electric energy from the solar wind-energy battery that water electrolysis hydrogen producing gas, hydrogen and the nano-metal-oxide on carrier is anti-
Water should be generated, water supplies SOEC electrolysis again.
2. a kind of energy storage and conversion system based on solid oxide cell according to claim 1, its feature exist
In：The nano metal is any one of iron, cobalt, nickel, copper, zinc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322878.6U CN206758560U (en) | 2017-03-30 | 2017-03-30 | A kind of energy storage and conversion system based on solid oxide cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322878.6U CN206758560U (en) | 2017-03-30 | 2017-03-30 | A kind of energy storage and conversion system based on solid oxide cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206758560U true CN206758560U (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720322878.6U Expired - Fee Related CN206758560U (en) | 2017-03-30 | 2017-03-30 | A kind of energy storage and conversion system based on solid oxide cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876752A (en) * | 2017-03-30 | 2017-06-20 | 中国矿业大学(北京) | A kind of energy storage and conversion system based on solid oxide cell |
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2017
- 2017-03-30 CN CN201720322878.6U patent/CN206758560U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876752A (en) * | 2017-03-30 | 2017-06-20 | 中国矿业大学(北京) | A kind of energy storage and conversion system based on solid oxide cell |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20200330 |