CN104659388A - Method for recycling electrode material blanks of molten carbonate fuel cells - Google Patents
Method for recycling electrode material blanks of molten carbonate fuel cells Download PDFInfo
- Publication number
- CN104659388A CN104659388A CN201510056978.4A CN201510056978A CN104659388A CN 104659388 A CN104659388 A CN 104659388A CN 201510056978 A CN201510056978 A CN 201510056978A CN 104659388 A CN104659388 A CN 104659388A
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- CN
- China
- Prior art keywords
- electrode
- biscuit
- molten carbonate
- carbonate fuel
- fuel cell
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/008—Disposal or recycling of fuel 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Abstract
The invention discloses a method for recycling electrode material blanks of molten carbonate fuel cells. The method comprises the following steps: (1) primarily crushing MCFC electrode blanks by a forceful crusher to obtain blank fragments; (2) putting the blank fragments after treatment into a container filled with distilled water of 90-100 DEG C, and stirring until a binding agent in the blanks are dissolved completely so as to form a turbid liquid; (3) filtering the turbid liquid, and filtering solid particles in the turbid liquid; and (4) putting the filtered solid particles into a drying box, and drying completely. The recycling method is simple, convenient and feasible, and is effectively used for solving the waste problem of electrode blanks in the MCFC production process, reducing the MCFC production cost, additionally increasing the utilization ratio of the electrode production raw materials, and further improving the MCFC commercial progress.
Description
Technical field
The invention belongs to molten carbonate fuel cell technical field, be specifically related to a kind of recovery method of electrode of molten carbonate fuel cell material biscuit.
Background technology
Fuel cell technology is a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT) that directly chemical energy be stored in fuel directly can be changed into electric energy, because its whole power generation process is without burning, so its energy conversion efficiency is not by the restriction of " Carnot cycle ", efficiency is up to more than 60%.Therefore, fuel cell has the outstanding advantages such as efficiency is high, pollution-free, noiselessness, is described as 21 century the cleanest generation technology.Fuel cell generally can be divided into high-temperature fuel cell and low-temperature fuel cell according to its working temperature, molten carbonate fuel cell (MCFC) belongs to high-temperature fuel cell, relative to low-temperature fuel cell, it has and does not use noble metal catalyst, fuel source is extensive and in technical advantages such as gas turbine/steam turbine combined cycle generations, can enter business-like lead-in stage at present.
At present, relative to traditional thermal power generation mode, molten carbonate fuel cell (MCFC) production cost is slightly high, and in order to reduce the production cost of MCFC further, researchers propose the method reclaiming critical material waste material in the production process of MCFC.Chinese patent (201110257157.9) proposes a kind of method reclaiming electrolyte membrance waste material, although the method can reclaim barrier film waste material, consuming time longer, is unfavorable for large-scale application.In addition, in the production process of MCFC, a large amount of MCFC electrode biscuit fragments can be produced, if do not recycled, not only can improve the production cost of MCFC, also can cause the waste of resource.
Summary of the invention
In order to solve above-mentioned prior art Problems existing, the object of the present invention is to provide a kind of recovery method of electrode of molten carbonate fuel cell material biscuit, the method is simple and easy to do, efficiently solve the waste problem of electrode biscuit in MCFC production process, reduce the production cost of MCFC, additionally improves the utilance of electrode production raw material, advance the commercialization process of MCFC further.
In order to achieve the above object, the present invention adopts following technical scheme:
A recovery method for electrode of molten carbonate fuel cell material biscuit, comprises the steps:
Step 1: electrode of molten carbonate fuel cell material biscuit is put into strong crusher and carries out preliminary pulverization process;
Step 2: biscuit powder after process is put into the container that 90 ~ 100 DEG C of distilled water are housed and stirs, until binding agent dissolves completely in biscuit, forms suspension-turbid liquid;
Step 3: above-mentioned suspension-turbid liquid is carried out filtration treatment, filtering solid particle wherein;
Step 4: be positioned in drying box by the solid particle of filtering and carry out drying, controls drying condition, can use after its bone dry.
Electrode of molten carbonate fuel cell material biscuit described in step 1 refers to the electrode diaphragm without high temperature sintering adopting band casting or the tape casting to prepare, and electrode material is Ni, Al, Cr, NiO, LiCoO
2or LiFeO
2in one or more.
Described band casting or the tape casting, after the solid particle of electrode material and solvent and organic additive are mixed to form uniform sizing material by ball milling, are laid on flat board, form biscuit thin slice after treating solvent evaporates by its uniform sizing material.
In biscuit described in step 2, binding agent is water-soluble binder.
Drying condition described in step 4 is: baking temperature controls, at 50 ~ 90 DEG C, to pass into one or more in air, nitrogen or inert gas.
Compared to the prior art comparatively, the present invention possesses following advantage:
The inventive method is simple and easy to do, efficiently solves the waste problem of electrode biscuit in MCFC production process, reduces the production cost of MCFC, additionally improves the utilance of electrode production raw material, advances the commercialization process of MCFC further.
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation:
Embodiment one: take 200g electrode of molten carbonate fuel cell material biscuit and be positioned in strong crusher, powerful smashing 2min, forms electrode biscuit powder; Then be positioned in 1000ml beaker by this biscuit powder, add distilled water 600ml wherein, be placed in heating water bath blender, controlling rotating speed is 120 revs/min, and controlling bath temperature is 100 DEG C, and continuous heating stirs 4h, forms suspension-turbid liquid; Take out beaker afterwards, cover one layer of heat preservation film at beaker mouth place, be cooled to room temperature, then filter, leach solid sediment, be then positioned in baking oven, control temperature is 60 DEG C, passes into nitrogen, flow control, at 30ml/min, is taken out after its drying, can use.
Embodiment two: take 400g electrode of molten carbonate fuel cell material biscuit and be positioned in strong crusher, powerful smashing 6min, forms electrode biscuit powder; Then be positioned in 1500ml beaker by this biscuit powder, add distilled water 1200ml wherein, be placed in heating water bath blender, controlling rotating speed is 180 revs/min, and controlling bath temperature is 95 DEG C, and continuous heating stirs 8h, forms suspension-turbid liquid; Take out beaker afterwards, cover one layer of heat preservation film at beaker mouth place, be cooled to room temperature, then filter, leach solid sediment, be then positioned in baking oven, control temperature is 80 DEG C, passes into air, flow control, at 60ml/min, is taken out after its drying, can use.
Claims (5)
1. a recovery method for electrode of molten carbonate fuel cell material biscuit, is characterized in that: comprise the steps:
Step 1: electrode of molten carbonate fuel cell material biscuit is put into strong crusher and carries out preliminary pulverization process;
Step 2: biscuit powder after process is put into the container that 90 ~ 100 DEG C of distilled water are housed and stirs, until binding agent dissolves completely in biscuit, forms suspension-turbid liquid;
Step 3: above-mentioned suspension-turbid liquid is carried out filtration treatment, filtering solid particle wherein;
Step 4: be positioned in drying box by the solid particle of filtering and carry out drying, controls drying condition, can use after its bone dry.
2. the recovery method of a kind of electrode of molten carbonate fuel cell material biscuit according to claim 1, it is characterized in that: the electrode of molten carbonate fuel cell material biscuit described in step 1 refers to the electrode diaphragm without high temperature sintering adopting band casting or the tape casting to prepare, and electrode material is Ni, Al, Cr, NiO, LiCoO
2or LiFeO
2in one or more.
3. the recovery method of a kind of electrode of molten carbonate fuel cell material biscuit according to claim 2, it is characterized in that: described band casting or the tape casting, after the solid particle of electrode material and solvent and organic additive are mixed to form uniform sizing material by ball milling, its uniform sizing material is laid on flat board, after treating solvent evaporates, forms biscuit thin slice.
4. the recovery method of a kind of electrode of molten carbonate fuel cell material biscuit according to claim 1, is characterized in that: in the biscuit described in step 2, binding agent is water-soluble binder.
5. the recovery method of a kind of electrode of molten carbonate fuel cell material biscuit according to claim 1, it is characterized in that: the drying condition described in step 4 is: baking temperature controls, at 50 ~ 90 DEG C, to pass into one or more in air, nitrogen or inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056978.4A CN104659388A (en) | 2015-02-04 | 2015-02-04 | Method for recycling electrode material blanks of molten carbonate fuel cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056978.4A CN104659388A (en) | 2015-02-04 | 2015-02-04 | Method for recycling electrode material blanks of molten carbonate fuel cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104659388A true CN104659388A (en) | 2015-05-27 |
Family
ID=53250264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510056978.4A Pending CN104659388A (en) | 2015-02-04 | 2015-02-04 | Method for recycling electrode material blanks of molten carbonate fuel cells |
Country Status (1)
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|---|---|
| CN (1) | CN104659388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909276A (en) * | 2021-03-12 | 2021-06-04 | 华能国际电力股份有限公司 | Method for recovering water-based molten carbonate fuel cell diaphragm waste material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453897A (en) * | 2003-05-29 | 2003-11-05 | 南开大学 | Recovery method for leftover and residue of positive electrode of lithium ion battery |
| CN101242016A (en) * | 2008-02-29 | 2008-08-13 | 东南大学 | Resource separation and recycling production method for waste nickel hydrogen battery content |
| CN101599563A (en) * | 2009-07-08 | 2009-12-09 | 中南大学 | The method of positive electrode active materials in a kind of high efficiente callback waste lithium cell |
| CN101814606A (en) * | 2010-04-01 | 2010-08-25 | 江苏工业学院 | Method for preparing NiO cathode materials of molten carbonate fuel cell by aqueous tape casting |
| CN102244274A (en) * | 2011-06-09 | 2011-11-16 | 中国华能集团清洁能源技术研究院有限公司 | Process method for preparing electrodes of molten carbonate fuel cell by use of wet method |
-
2015
- 2015-02-04 CN CN201510056978.4A patent/CN104659388A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453897A (en) * | 2003-05-29 | 2003-11-05 | 南开大学 | Recovery method for leftover and residue of positive electrode of lithium ion battery |
| CN101242016A (en) * | 2008-02-29 | 2008-08-13 | 东南大学 | Resource separation and recycling production method for waste nickel hydrogen battery content |
| CN101599563A (en) * | 2009-07-08 | 2009-12-09 | 中南大学 | The method of positive electrode active materials in a kind of high efficiente callback waste lithium cell |
| CN101814606A (en) * | 2010-04-01 | 2010-08-25 | 江苏工业学院 | Method for preparing NiO cathode materials of molten carbonate fuel cell by aqueous tape casting |
| CN102244274A (en) * | 2011-06-09 | 2011-11-16 | 中国华能集团清洁能源技术研究院有限公司 | Process method for preparing electrodes of molten carbonate fuel cell by use of wet method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909276A (en) * | 2021-03-12 | 2021-06-04 | 华能国际电力股份有限公司 | Method for recovering water-based molten carbonate fuel cell diaphragm waste material |
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Application publication date: 20150527 |