CN202905926U - Energy storage and conversion device - Google Patents
Energy storage and conversion device Download PDFInfo
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- CN202905926U CN202905926U CN201220114683XU CN201220114683U CN202905926U CN 202905926 U CN202905926 U CN 202905926U CN 201220114683X U CN201220114683X U CN 201220114683XU CN 201220114683 U CN201220114683 U CN 201220114683U CN 202905926 U CN202905926 U CN 202905926U
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- air chamber
- negative pole
- secondary battery
- fuel cell
- anode
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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 utility model discloses an energy storage and conversion device. The energy storage and conversion device comprises 1, a housing comprising a receiving space, 2, a diaphragm arranged in the receiving space, 3, a secondary battery anode and a secondary battery cathode arranged in the receiving space, 4, a fuel battery anode and a fuel battery cathode arranged in the receiving space, wherein the fuel battery anode is electrically connected to the secondary battery anode and the fuel battery cathode is electrically connected to the secondary battery cathode, 4, an alkaline electrolyte formed between the secondary battery anode and the secondary battery cathode, 5, an oxygen storage tank communicated with the receiving space and providing oxygen to the fuel battery anode, and 6, a hydrogen storage tank communicated with the receiving space and providing hydrogen to the fuel battery cathode. The energy storage and conversion device has functions of a fuel battery and a secondary battery, has a simple structure and a low cost and solves the problem of overcharge.
Description
Technical field
The utility model relates to field of batteries, particularly a kind of energy storage and conversion equipment.
Background technology
Current, the mankind are being faced with the double challenge of resource estimation and living environment deterioration.For this reason, new material is being made great efforts to research and develop in countries in the world, advances the new concept of low-carbon (LC) life, promotes human society to turn to sustainable development mode energy-saving, capable of circulation by present high energy consumption, the high flow rate life mode of production.Be specially the application of wideling popularize clean energy resource, such as the application at power field of solar energy, wind energy, and use hybrid vehicle or pure electric automobile to replace using at present the orthodox car of gasoline.
The application of clean energy resource and new automobile all be unable to do without medium-and-large-sized energy-storage battery and electrokinetic cell.In numerous energy-storage batteries and electrokinetic cell, secondary cell and fuel cell are with a wide range of applications, and particularly are applied in the hybrid vehicle.
The secondary cell system is more, such as Ni-MH battery, lead-acid battery, flow battery and lithium ion battery.The working method of secondary cell is, converts electric energy to chemical energy during charging, then converts chemical energy to electric energy during discharge.The working method of fuel cell is to convert chemical energy to electric energy.The two respectively has pluses and minuses, compares with fuel cell, and the power of secondary cell is larger, and energy density is lower.And fuel cell antithesis.
In emerging battery applications field, when the two uses as power battery of electric vehicle, usually secondary cell and fuel cell are integrated use, to take full advantage of the advantage of the two.In the prior art, secondary cell and fuel cell all are to adopt outer integrated method to integrate usually, and namely secondary battery module and fuel cell module prepare respectively, then link together by outside line.There is following shortcoming in this integrated approach: complex circuit, cost is high, and secondary cell is in the situation of overcharging, and causes easily on inside battery flatulence, the electrode that active material comes off.
In view of this, be necessary to provide a kind of novel energy storage and conversion equipment.
The utility model content
The technical problem that the utility model solves is to provide a kind of energy storage and conversion equipment, and this energy storage and conversion equipment have the function of fuel cell and secondary cell simultaneously, and simple in structure, cost is low, has solved the problem that overcharges.
For achieving the above object, the utility model provides following technical scheme:
A kind of energy storage and conversion equipment comprise:
One housing comprises a receiving space;
Barrier film is located in the described receiving space;
Anode of secondary battery and secondary battery negative pole are located in the described receiving space;
Fuel cell anode and fuel cell negative pole are located in the described receiving space, and described fuel cell anode is electrically connected at described anode of secondary battery, and described fuel cell negative pole is electrically connected at described secondary battery negative pole;
Alkaline electrolyte is formed between anode of secondary battery and the secondary battery negative pole and between anode of secondary battery and the secondary battery negative pole;
Oxygen storage tank is communicated in described receiving space and described fuel cell anode oxygen is provided;
Hydrogen storage tank is communicated in described receiving space and described fuel cell negative pole hydrogen is provided.
Preferably, in above-mentioned energy storage and conversion equipment, described barrier film is separated into anodal air chamber and negative pole air chamber with described receiving space, and described oxygen storage tank is communicated in described anodal air chamber; Described hydrogen storage tank is communicated in described negative pole air chamber; Described anode of secondary battery and fuel cell anode are located in the described anodal air chamber; Described secondary battery negative pole and fuel cell negative pole are located in the described negative pole air chamber.
Preferably, in above-mentioned energy storage and conversion equipment, described barrier film comprises the first barrier film and the second barrier film, and this first barrier film and the second barrier film are separated into the first air chamber, the second air chamber and the 3rd air chamber with described receiving space, and described the second air chamber is between described the first air chamber and the 3rd air chamber.
Preferably, in above-mentioned energy storage and conversion equipment, described oxygen storage tank is communicated in described the second air chamber; Described hydrogen storage tank is communicated in respectively described the first air chamber and the 3rd air chamber; Described anode of secondary battery and fuel cell anode are located in described the second air chamber; Described secondary battery negative pole is located in described the first air chamber; Described fuel cell negative pole is located in described the 3rd air chamber.
Preferably, in above-mentioned energy storage and conversion equipment, described hydrogen storage tank is communicated in described the second air chamber; Described oxygen storage tank is communicated in respectively described the first air chamber and the 3rd air chamber; Described secondary battery negative pole and fuel cell negative pole are located in described the second air chamber; Described anode of secondary battery is located in described the first air chamber; Described fuel cell anode is located in described the 3rd air chamber.
Preferably, in above-mentioned energy storage and conversion equipment, described alkaline electrolyte is selected from potassium hydroxide or NaOH.
Preferably, in above-mentioned energy storage and conversion equipment, the material of described anode of secondary battery is selected from nickel hydroxide, manganese dioxide or both mixtures; The material of described fuel cell anode is selected from nickel hydroxide, manganese dioxide or both mixtures.
Preferably, in above-mentioned energy storage and conversion equipment, also comprise additive in the material of described anode of secondary battery, described additive is selected from one or both in platinum, the silver; Also comprise additive in the material of described fuel cell anode, described additive is selected from one or both in platinum, the silver.
Preferably, in above-mentioned energy storage and conversion equipment, the material of described secondary battery negative pole is storage alloy material for hydrogen; The material of described fuel cell negative pole is storage alloy material for hydrogen.
The utility model provides a kind of energy storage and conversion equipment, and this device integrates secondary cell and fuel cell by interior integrated method, have the advantage of secondary cell and fuel cell concurrently, can reach the effect of mutual supplement with each other's advantages; Interior integrated system is removed much wayside control system required when fuel cell and secondary cell is integrated from outward, and is simple in structure, and can reduce cost.Simultaneously, interior integrated system can realize overcharging, and can not produce inside battery flatulence, the problem such as come off of the active material on the electrode.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The energy storage that provides among the utility model the first embodiment and the structural representation of conversion equipment are provided;
The energy storage that provides among the utility model the second embodiment and the structural representation of conversion equipment are provided;
The energy storage that provides among the utility model the 3rd embodiment and the structural representation of conversion equipment are provided.
Embodiment
In order further to understand the utility model, below in conjunction with embodiment the utility model preferred embodiment is described, but should be appreciated that these describe just as further specifying feature and advantage of the present utility model, rather than to the restriction of the utility model claim.
The utility model embodiment discloses a kind of energy storage and conversion equipment, comprising:
One housing comprises a receiving space;
Barrier film is located in the described receiving space;
Anode of secondary battery and secondary battery negative pole are located in the described receiving space;
Fuel cell anode and fuel cell negative pole are located in the described receiving space, and described fuel cell anode is electrically connected at described anode of secondary battery, and described fuel cell negative pole is electrically connected at described secondary battery negative pole;
Alkaline electrolyte is formed between anode of secondary battery and the secondary battery negative pole and between anode of secondary battery and the secondary battery negative pole;
Oxygen storage tank is communicated in described receiving space and described fuel cell anode oxygen is provided;
Hydrogen storage tank is communicated in described receiving space and described fuel cell negative pole hydrogen is provided.
Alkaline electrolyte is preferably from potassium hydroxide or NaOH.The material of anode of secondary battery is preferably from nickel hydroxide, manganese dioxide or both mixtures.The material of fuel cell anode is preferably from nickel hydroxide, manganese dioxide or both mixtures.Also comprise additive in the material of anode of secondary battery, additive is one or both in platinum, silver preferably; Also comprise additive in the material of fuel cell anode, this additive is one or both in platinum, silver preferably.The material of secondary battery negative pole is preferably storage alloy material for hydrogen.The material of fuel cell negative pole is preferably storage alloy material for hydrogen.
Below in conjunction with embodiment energy storage of the present utility model and conversion equipment are elaborated.
The energy storage that provides among the utility model the first embodiment and the structural representation of conversion equipment are provided.
Energy storage and conversion equipment 10 comprise housing 11, barrier film 12, positive pole 13, negative pole 14, electrolyte 15, oxygen storage tank 16 and hydrogen storage tank 17.
Anodal 13 is positive pole (anode of secondary battery) positive pole (fuel cell anode) electric connections used with fuel cell that secondary cell is used, it perhaps is an electrically-conductive backing plate, this electrically-conductive backing plate not only can be used as the positive pole of secondary cell, can also the act as a fuel positive pole of battery has the function of secondary cell and fuel cell anode concurrently.The material of electrically-conductive backing plate can be selected from nickel hydroxide, manganese dioxide or both mixtures, can also be added with additive in this material, and this additive is selected from one or both in platinum, the silver.
The operation logic of energy storage and conversion equipment 10 is as follows:
When to this energy storage and conversion equipment 10 charging, at the charging initial stage, active material charging on anodal 13, this moment is the same with the charging principle of anode of secondary battery, and the reduction-state material is oxidized to oxidation state; The reaction that occurs at negative pole 14 is then the same with negative reaction on the secondary cell, and the material on the negative pole is transformed into reduction-state from oxidation state.
Along with the continuation of charging, the material on anodal 13 all is transformed into oxidation state, and the material on the negative pole 14 is transformed into reduction-state, when further charging again, and the back reaction of the reaction that the reaction that occurs on the both positive and negative polarity of this device occurs on the fuel cell just.Namely at positive pole oxygen evolution is arranged, and free the hydrogen evolution reaction at negative pole.The oxygen of separating out enters anodal air chamber 1111, and the hydrogen that produces enters negative pole air chamber 1112, and enters oxygen storage tank 16 and hydrogen storage tank 17 by tracheae 18 and 19 respectively.
Discharge process is as follows: in the discharge starting stage, the reaction that the both positive and negative polarity of device occurs above is the same with the reaction of fuel cell, and namely anodal 13 oxygen reduction reaction, the reaction of negative pole 14 generating hydrogen oxidations occur.After the reacting gas in oxygen storage tank 16 and the hydrogen storage tank 17 is exhausted, this device can continue discharge, the same in the reaction that occur this moment and the secondary cell, namely active material becomes reduction-state from oxidation state on the positive pole 13, and the active material on the negative pole 14 becomes oxidation state from reduction-state.
The energy storage that provides among the utility model the second embodiment and the structural representation of conversion equipment are provided.
Energy storage and conversion equipment 20 comprise housing 21, barrier film 22, positive pole 23, secondary battery negative pole 241, fuel cell negative pole 242, electrolyte 25, oxygen storage tank 26 and hydrogen storage tank 27.
Anodal 23 is positive pole (anode of secondary battery) positive pole (fuel cell anode) electric connections used with fuel cell that secondary cell is used, it perhaps is an electrically-conductive backing plate, this electrically-conductive backing plate not only can be used as the positive pole of secondary cell, can also the act as a fuel positive pole of battery has the function of secondary cell and fuel cell anode concurrently.The material of electrically-conductive backing plate can be selected from nickel hydroxide, manganese dioxide or both mixtures, can also be added with additive in this material, and this additive is selected from one or both in platinum, the silver.
Adopt the wire (not shown) to be electrically connected between secondary battery negative pole 241 and the fuel cell negative pole 242, the material of secondary battery negative pole 241 and fuel cell negative pole 242 is preferably storage alloy material for hydrogen.
Anodal 23, secondary battery negative pole 241 and fuel cell negative pole 242 is located at respectively in the second air chamber 2112, in the first air chamber 2111 and in the 3rd air chamber 2113.Oxygen storage tank 26 is communicated in the second air chamber 2112 by tracheae 28; Hydrogen storage tank 27 is communicated in respectively the first air chamber 2111 and the 3rd air chamber 2113 by tracheae 29.
The operation logic of energy storage and conversion equipment 20 is as follows:
When to energy storage and conversion equipment 20 charging, at the charging initial stage, active material charging on anodal 23, this moment is the same with the charging principle of anode of secondary battery, and the reduction-state material is oxidized to oxidation state; The reaction that occurs at secondary battery negative pole 241 is then the same with negative reaction on the secondary cell, and the material on the negative pole is transformed into reduction-state from oxidation state.
Along with the continuation of charging, the material on anodal 23 all is transformed into oxidation state, and the material on the secondary battery negative pole 241 is transformed into reduction-state, when further charging again, and the back reaction of the reaction that the reaction that occurs on the both positive and negative polarity of this device occurs on the fuel cell just.Namely anodal 23 oxygen evolution is arranged, and free the hydrogen evolution reaction at secondary battery negative pole 241.The oxygen of separating out enters the second air chamber 2112, and the hydrogen that secondary battery negative pole 241 produces enters the first air chamber 2111, and fuel cell negative pole 242 also can produce hydrogen at this moment.The gas that produces enters oxygen storage tank 26 and hydrogen storage tank 27 by tracheae 28 and 29 respectively.
Discharge process is as follows: in the discharge starting stage, the reaction that the both positive and negative polarity of device occurs above is the same with the reaction of fuel cell, and namely anodal 23 oxygen reduction reaction, the reaction of fuel cell negative pole 242 generating hydrogen oxidations occur.Oxygen enters the second air chamber 2112 from oxygen storage tank 26 through tracheae 28, reduction reaction occurs there, and hydrogen enters the 3rd air chamber 2113 from hydrogen storage tank 27 through tracheae 29, and is oxidized there, and the electrode that participates in work this moment is positive pole 23 and fuel cell negative pole 242.After the reacting gas in oxygen storage tank 26 and the hydrogen storage tank 27 is exhausted, this device can continue discharge, the same in the reaction that occur this moment and the secondary cell, namely active material becomes reduction-state from oxidation state on the positive pole 23, and the active material on the secondary battery negative pole 241 becomes oxidation state from reduction-state, this moment, the behavior of battery was secondary cell discharge behavior, and the electrode that participates in work is positive pole 23 and secondary battery negative pole 241.
The energy storage that provides among the utility model the 3rd embodiment and the structural representation of conversion equipment are provided.
Energy storage and conversion equipment 30 comprise housing 31, barrier film 32, negative pole 33, anode of secondary battery 341, fuel cell anode 342, electrolyte 35, oxygen storage tank 36 and hydrogen storage tank 37.
Adopt the wire (not shown) to be electrically connected between anode of secondary battery 341 and the fuel cell anode 342.The material of anode of secondary battery 341 and fuel cell anode 342 can be selected from nickel hydroxide, manganese dioxide or both mixtures, can also be added with additive in this material, and this additive is selected from one or both in platinum, the silver.
Anode of secondary battery 341, fuel cell anode 342 and negative pole 33 are located at respectively in the first air chamber 3111, in the 3rd air chamber 3113 and in the second air chamber 3112.Hydrogen storage tank 37 is communicated in the second air chamber 3112 by tracheae 39; Oxygen storage tank 36 is communicated in respectively the first air chamber 3111 and the 3rd air chamber 3113 by tracheae 38.
The operation logic of energy storage and conversion equipment 30 is as follows:
When to energy storage and conversion equipment 30 charging, at the charging initial stage, active material charging on anode of secondary battery 341, this moment is the same with the charging principle of anode of secondary battery, and the reduction-state material is oxidized to oxidation state; The reaction that occurs at negative pole 33 is then the same with negative reaction on the secondary cell, and the material on the negative pole 33 is transformed into reduction-state from oxidation state.
Along with the continuation of charging, the material on the anode of secondary battery 341 all is transformed into oxidation state, and the material on the negative pole 33 is transformed into reduction-state, when further charging again, and the back reaction of the reaction that the reaction that occurs on the both positive and negative polarity of this device occurs on the fuel cell just.Namely at anode of secondary battery 341 oxygen evolution is arranged, and free the hydrogen evolution reaction at negative pole 33.The oxygen that anode of secondary battery 341 is separated out enters the first air chamber 3111, and also can produce oxygen in fuel cell anode 342 this moment.And the hydrogen that negative pole 33 produces enters the second air chamber 3112, and enters oxygen storage tank 36 and hydrogen storage tank 37 by tracheae 38 and 39 respectively.
Discharge process is as follows: in the discharge starting stage, the reaction that the both positive and negative polarity of device occurs above is the same with the reaction of fuel cell, and namely oxygen reduction reaction, the reaction of negative pole 33 generating hydrogen oxidations occur fuel cell anode 342.Oxygen enters the 3rd air chamber 3113 from oxygen storage tank 36 through tracheae 38, reduction reaction occurs there, and hydrogen enters the second air chamber 3112 from hydrogen storage tank 37 through tracheae 39, and is oxidized there, and the electrode that participate in work this moment is fuel cell anode 342 and negative pole 33.After the reacting gas in oxygen storage tank 36 and the hydrogen storage tank 37 is exhausted, this device can continue discharge, the same in the reaction that occur this moment and the secondary cell, be that active material becomes reduction-state from oxidation state on the anode of secondary battery 341, and the active material on the negative pole 33 becomes oxidation state from reduction-state, this moment, the behavior of battery was secondary cell discharge behavior, and the electrode that participates in work is anode of secondary battery 341 and negative pole 33.
In the 4th kind of execution mode of the utility model, the positive pole of secondary cell and fuel cell lays respectively on the different matrixes, and negative pole also lays respectively on the different matrixes, and operation principle and embodiment 1 to 3 are similar.At this moment, in a housing, add up to four electrodes, two be anodal two other be negative pole, wherein a pair of both positive and negative polarity has the function of secondary cell, another is to having the function of fuel cell.Early stage in charging, the pair of electrodes work with secondary cell function, and charging is during late period, hydrogen and oxygen are respectively in negative pole and anodal generation.The discharge commitment has a pair of battery operated of fuel cell function, and in the discharge later stage, the pair of electrodes work with secondary cell function.
In sum, the utility model has the advantage of: secondary cell and fuel cell are integrated by interior integrated method, have the advantage of secondary cell and fuel cell concurrently, can reach the effect of mutual supplement with each other's advantages; Interior integrated system is removed much wayside control system required when fuel cell and secondary cell is integrated from outward, and is simple in structure, and can reduce cost.Simultaneously, interior integrated system can realize overcharging, and can not produce inside battery flatulence, the problem such as come off of the active material on the electrode.
The explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. an energy storage and conversion equipment is characterized in that, comprising:
One housing comprises a receiving space;
Barrier film is located in the described receiving space;
Anode of secondary battery and secondary battery negative pole are located in the described receiving space;
Fuel cell anode and fuel cell negative pole are located in the described receiving space, and described fuel cell anode is electrically connected at described anode of secondary battery, and described fuel cell negative pole is electrically connected at described secondary battery negative pole;
Alkaline electrolyte is formed between anode of secondary battery and the secondary battery negative pole and between anode of secondary battery and the secondary battery negative pole;
Oxygen storage tank is communicated in described receiving space and described fuel cell anode oxygen is provided;
Hydrogen storage tank is communicated in described receiving space and described fuel cell negative pole hydrogen is provided.
2. energy storage according to claim 1 and conversion equipment is characterized in that, described barrier film is separated into anodal air chamber and negative pole air chamber with described receiving space, and described oxygen storage tank is communicated in described anodal air chamber; Described hydrogen storage tank is communicated in described negative pole air chamber; Described anode of secondary battery and fuel cell anode are located in the described anodal air chamber; Described secondary battery negative pole and fuel cell negative pole are located in the described negative pole air chamber.
3. energy storage according to claim 1 and conversion equipment, it is characterized in that, described barrier film comprises the first barrier film and the second barrier film, this first barrier film and the second barrier film are separated into the first air chamber, the second air chamber and the 3rd air chamber with described receiving space, and described the second air chamber is between described the first air chamber and the 3rd air chamber.
4. energy storage according to claim 3 and conversion equipment is characterized in that, described oxygen storage tank is communicated in described the second air chamber; Described hydrogen storage tank is communicated in respectively described the first air chamber and the 3rd air chamber; Described anode of secondary battery and fuel cell anode are located in described the second air chamber; Described secondary battery negative pole is located in described the first air chamber; Described fuel cell negative pole is located in described the 3rd air chamber.
5. energy storage according to claim 3 and conversion equipment is characterized in that, described hydrogen storage tank is communicated in described the second air chamber; Described oxygen storage tank is communicated in respectively described the first air chamber and the 3rd air chamber; Described secondary battery negative pole and fuel cell negative pole are located in described the second air chamber; Described anode of secondary battery is located in described the first air chamber; Described fuel cell anode is located in described the 3rd air chamber.
6. according to claim 1 to the described energy storage of 5 any one and conversion equipment, it is characterized in that described alkaline electrolyte is selected from potassium hydroxide or NaOH.
7. according to claim 1 to the described energy storage of 5 any one and conversion equipment, it is characterized in that the material of described secondary battery negative pole is storage alloy material for hydrogen; The material of described fuel cell negative pole is storage alloy material for hydrogen.
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CN201220114683XU CN202905926U (en) | 2012-03-23 | 2012-03-23 | Energy storage and conversion device |
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CN201220114683XU CN202905926U (en) | 2012-03-23 | 2012-03-23 | Energy storage and conversion device |
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Cited By (1)
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CN102610874A (en) * | 2012-03-23 | 2012-07-25 | 苏州大学 | Energy storage and conversion device |
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CN102610874A (en) * | 2012-03-23 | 2012-07-25 | 苏州大学 | Energy storage and conversion device |
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