CN105047947B - Cellular cavity-stage integrated fuel cell electrode and preparation method thereof - Google Patents
Cellular cavity-stage integrated fuel cell electrode and preparation method thereof Download PDFInfo
- Publication number
- CN105047947B CN105047947B CN201510438992.0A CN201510438992A CN105047947B CN 105047947 B CN105047947 B CN 105047947B CN 201510438992 A CN201510438992 A CN 201510438992A CN 105047947 B CN105047947 B CN 105047947B
- Authority
- CN
- China
- Prior art keywords
- catalyst
- cellular
- cavity
- fuel
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
-
- 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 invention discloses a cellular cavity-stage integrated fuel cell electrode and a preparation method of the fuel cell electrode and belongs to the field of a fuel cell. Integrated design and manufacture of a cellular porous structure diffusion layer and a catalyst layer is contained. The cellular porous structure is formed by using a conductive 3D printing material to fast print. A cavity, a collector plate, the diffusion layer and the catalyst layer of the cellular porous structure in the cellular cavity-stage integrated fuel cell electrode are integrated to break through a design manner of separating the cavity, the collector plate, the diffusion layer and the catalyst layer in a traditional fuel cell. In the cellular porous structure, second-stage channels are distributed on the basis of first-stage channels, and therefore, such design greatly increases the catalytic activity superficial area, reduces mass transfer resistance and greatly improves discharging current of the electrode, and enables the structure of the electrode to be simple and compact, and the assembly and sealing to be convenient and easy.
Description
【Technical field】
The invention belongs to fuel cell field, and in particular to a kind of cellular chamber pole integrated fuel battery electrode and its system
Preparation Method.
【Background technology】
Its structure of traditional fuel cell is fuel cavity, collector plate, diffusion layer and Catalytic Layer successively close-packed arrays, this
The detached arrangement of fuel cavity, collector plate, diffusion layer and Catalytic Layer so that the size of battery is bigger than normal, assembling sealing are numerous and diverse,
The transport resistance increase of fuel, so as to reduce the performance of battery.
【The content of the invention】
It is an object of the invention to solve the above problems, there is provided a kind of cellular chamber pole integrated fuel battery electrode and its
Preparation method, the fuel cell electrode small volume, but its internal dense distribution cellular aperture, mutually interconnects between Kong Yukong
It is logical, one-level passage is constituted, while secondary passage is also dispersed with each hole, compact conformation, fuel resistance to mass tranfer are little, catalysis activity
Surface area is big, and power density is high, can produce bigger discharge current.
To reach above-mentioned purpose, the present invention is employed the following technical solutions and is achieved：
A kind of cellular chamber pole integrated fuel battery electrode, including columned fuel cavity, the side of fuel cavity
Some honeycomb structures are offered with bottom surface；One-level passage of the honeycomb structure of side as fuel transfer passage, honeycomb structure
Inside it is provided with for increasing the secondary passage of reaction surface area；The surface-coated of one-level passage and secondary passage has film catalyst
Layer.
The present invention is further improved by：
The fuel cavity is made by 3D printing using conductive 3D printing material.
The outside of the honeycomb structure is cellular structures supporting layer.
The film catalyst layer includes that the catalyst granules and ion that are coated with one-level passage and secondary passage surface gather
Compound.
The invention also discloses a kind of preparation method of cellular chamber pole integrated fuel battery electrode, including following step
Suddenly：
1) set up using 3 d modeling software and 3D printing is carried out using conductive 3D printing material after model, made columned
Fuel cavity, the side and bottom surface of fuel cavity offer some honeycomb structures；The honeycomb structure of side is used as fuel transmission
The one-level passage of passage, is provided with honeycomb structure for increasing the secondary passage of reaction surface area；
2) the fuel cavity made is immersed in catalyst mixed solution, makes attached catalyst on the wall of honeycomb structure
Mixed solution, then dries, and forms film catalyst layer；Wherein, catalyst mixed solution is 1.0～4.0mgcm-2 by carrying capacity
Catalyst granules dispersed in dispersant with the ionomer that mass percent is 5～50% make.
The present invention is further improved by：
The step 2) in, catalyst granules is using Pd base catalyst, Pt base catalyst, Fe base catalyst, the catalysis of Co bases
Agent or Ni base catalyst；Ionomer adopts sulfonic acid group base ionomer or Ji An groups base ionomer；Dispersion
Agent adopts ethanol, acetone or tetrahydrofuran.
Compared with prior art, the invention has the advantages that：
(1) side and bottom surface of fuel cavity of the present invention is cellular structures, its cavity, collector plate, diffusion layer,
Catalytic Layer is integrated, and breaches the detached design of conventional fuel cell cavity, collector plate, Catalytic Layer and diffusion layer.The honeybee
In nest shape loose structure, secondary passage is dispersed with the basis of one-level passage, this design is significantly greatly increased catalytically active surface product,
Reduce resistance to mass tranfer, the discharge current of electrode is greatly improved, and also causes the simple and compact for structure of electrode, assembling sealing is convenient
It is easy.
(2) honeycomb structure of the present invention, i.e. one-level passage, serve not only as the passage of fuel transmission, while playing splendid attire fuel
As the effect of fuel cavity.
(3) three-dimensional appearance of the invention, arbitrarily can change according to actual needs.
(4) fuel cavity of the present invention adopts 3D printing rapid shaping technique, solves to add because loose structure is complicated, small volume is difficult
The problem of work, can easily realize mass and integrated molding, be conducive to the marketing of mature technology.
【Description of the drawings】
Fig. 1 is the enlarged axonometric map of cellular chamber pole integrated fuel battery electrode.
Fig. 2 is the sectional view enlarged drawing of cellular chamber pole integrated fuel battery electrode
Fig. 3 is cellular structures Catalytic Layer enlarged axonometric map.
Fig. 4 is secondary passage and film catalyst layer microstructure schematic diagram in cellular structures.
Wherein：1 is fuel cavity；2 is honeycomb structure；3 is one-level passage；4 is cellular structures supporting layer；5 are
Catalyst granules；6 is ionomer；7 is secondary passage.
【Specific embodiment】
Below in conjunction with the accompanying drawings the present invention is described in further detail：
Referring to Fig. 1 to 4, cellular chamber pole integrated fuel battery electrode of the invention, including using conductive 3D printing material
By columned fuel cavity 1 made by 3D printing, the side and bottom surface of fuel cavity 1 offer some honeycomb structures 2,
The outside of honeycomb structure 2 is cellular structures supporting layer 4；One-level of the honeycomb structure 2 of side as fuel transfer passage
It is provided with passage 3, honeycomb structure 2 for increasing the secondary passage 7 of reaction surface area；The table of one-level passage 3 and secondary passage 7
Face is coated with film catalyst layer, and film catalyst layer includes being coated with the catalyst granules on 7 surface of one-level passage 3 and secondary passage
5 and ionomer 6.
The preparation method of the cellular chamber pole integrated fuel battery electrode of the present invention, comprises the following steps：
1) set up using 3 d modeling software and 3D printing is carried out using conductive 3D printing material after model, made columned
Fuel cavity 1, the side and bottom surface of fuel cavity 1 offer some honeycomb structures 2；The honeycomb structure 2 of side is used as fuel
It is provided with the one-level passage 3 of transmission channel, honeycomb structure 2 for increasing the secondary passage 7 of reaction surface area；
2) the fuel cavity 1 made is immersed in catalyst mixed solution, makes attachment catalysis on the wall of honeycomb structure 2
Agent mixed solution, then dries, and forms film catalyst layer.Wherein, catalyst mixed solution is 1.0～4.0mgcm by carrying capacity-2
Catalyst granules dispersed in dispersant with the ionomer that mass percent is 5～50% make.Catalyst particles
Grain adopts Pd base catalyst, Pt base catalyst, Fe base catalyst, Co bases catalyst or Ni base catalyst；Ionomer is adopted
Sulfonic acid group base ionomer or Ji An groups base ionomer；Dispersant adopts ethanol, acetone or tetrahydrofuran.
The operation principle of the present invention：
The fuel cavity of conventional fuel cell, collector plate, diffusion layer and Catalytic Layer be it is detached, it is of the invention then by fuel cavity
Body, collector plate, diffusion layer and Catalytic Layer are integrated, and in order to larger surface area is obtained in less volume, and keep one
Fixed porosity, using cellular structures, the loose structure both as collector plate, diffusion layer, but also as containing fuel
With the place of fuel reaction, between Kong Yukong, mutual UNICOM, increases electrochemical reaction active area, is conducive to the drop of resistance to mass tranfer
It is low.One cylinder model with honeycomb fashion loose structure is built by 3 d modeling software, is then beaten using conductive 3D
Print material application 3D printing technique completes the printing of model, and cellular structures attachment upper catalyst is completed cellular finally
The making of chamber pole integrated fuel battery electrode.
As shown in figure 1, for the present invention enlarged axonometric map, surface is intensive honeycomb structure 2, its internal cellular shape hole phase
One-level passage 3 is mutually formed through, multiple secondary passages 7 in each honeycomb structure, is also distributed with, can effectively increase reaction surface area,
Reduce resistance to mass tranfer.
As shown in Fig. 2 for the axial partial sectional view of fuel cavity 1, it is be mutually communicated intensive cellular inside which
, there be multiple secondary passages 7 in hole 2 in each honeycomb structure.Honeycomb structure is less, more intensive, the spacing between Kong Yukong it is less and
It is mutually communicated that degree is bigger, while keeping certain porosity, then the catalysis of cellular chamber pole integrated fuel battery electrode is lived
Property surface area is bigger, and performance is better, and resistance to mass tranfer is less.It is due to the complexity of honeycomb fashion loose structure, soft using three-dimensional modeling
Part carries out 3D printing, the conductive material also effect with afflux using conductive 3D printing material after setting up model.When fuel cavity
When in the immersion fuel of body 1, fuel will be penetrated in the electrode from outside, diffuse whole cellular structures.
It is as shown in figure 3, for the cellular structures enlarged drawing of fuel cavity 1 including one-level passage 3, cellular porous
Structural support layers 4, catalyst granules 5, ionomer 6 and secondary passage 7.The thin film for being attached to cellular structures is urged
Change layer, its manufacturing process is that the catalyst mixed solution for preparing cellular structures immersion makes loose structure wall
Adhere to the mixture on face, then dry, form film catalyst layer, complete the system of cellular chamber pole integrated fuel battery electrode
Make.
As shown in figure 4, for the microcosmic partial enlargement structure of fuel cavity 1, including one-level passage 3, catalyst granules 5, from
Sub- polymer 6 and secondary passage 7, wherein catalyst granules 5 and 6 mixed distribution of ionomer are in secondary passage 7.Catalysis
Agent granule 5 and ionomer 6 are attached on cellular structures and constitute cavity, diffusion layer, film catalyst layer integrative-structure.
Honeycomb structure of the present invention 2, i.e. one-level passage 3, serve not only as the passage of fuel transmission, while play splendid attire fuel making
For the effect of fuel cavity.The three-dimensional appearance of the present invention, and in particular to one-level passage and secondary passage, can appoint according to actual needs
Meaning changes.The present invention makes fuel cavity 1 using 3D printing rapid shaping technique, solves because loose structure is complicated, small volume is difficult
The problem of processing, can easily realize mass and integrated molding, be conducive to the marketing of mature technology.
Above content technological thought only to illustrate the invention, it is impossible to which protection scope of the present invention is limited with this, it is every to press
According to technological thought proposed by the present invention, any change done on the basis of technical scheme, claims of the present invention is each fallen within
Protection domain within.
Claims (5)
1. a kind of cellular chamber pole integrated fuel battery electrode, it is characterised in that including columned fuel cavity (1), combustion
The side and bottom surface of material cavity (1) offers some honeycomb structures (2)；The honeycomb structure (2) of side is logical as fuel transmission
The one-level passage (3) in road, is provided with honeycomb structure (2) for increasing the secondary passage (7) of reaction surface area；One-level passage
And the surface-coated of secondary passage (7) has film catalyst layer (3)；Fuel cavity (1) is beaten by 3D using conductive 3D printing material
It is printed to.
2. cellular chamber pole integrated fuel battery electrode according to claim 1, it is characterised in that the honeycomb structure
(2) outside is cellular structures supporting layer (4).
3. cellular chamber pole integrated fuel battery electrode according to claim 1 and 2, it is characterised in that the thin film
Catalytic Layer includes being coated with the catalyst granules (5) and ionomer (6) on one-level passage (3) and secondary passage (7) surface.
4. a kind of preparation method of cellular chamber pole integrated fuel battery electrode, it is characterised in that comprise the following steps：
1) set up using 3 d modeling software and 3D printing is carried out using conductive 3D printing material after model, make columned fuel
Cavity (1), the side and bottom surface of fuel cavity (1) offer some honeycomb structures (2)；Honeycomb structure (2) conduct of side
The one-level passage (3) of fuel transfer passage, is provided with honeycomb structure (2) for increasing the secondary passage (7) of reaction surface area；
2) the fuel cavity (1) made is immersed in catalyst mixed solution, makes attachment catalysis on the wall of honeycomb structure (2)
Agent mixed solution, then dries, and forms film catalyst layer；Wherein, catalyst mixed solution is 1.0～4.0mgcm by carrying capacity-2
Catalyst granules dispersed in dispersant with the ionomer that mass percent is 5～50% make.
5. the preparation method of cellular chamber pole integrated fuel battery electrode according to claim 4, it is characterised in that institute
State step 2) in, catalyst granules is urged using Pd base catalyst, Pt base catalyst, Fe base catalyst, Co bases catalyst or Ni bases
Agent；Ionomer adopts sulfonic acid group base ionomer or quaternary ammonium group base ionomer；Dispersant using ethanol,
Acetone or tetrahydrofuran.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438992.0A CN105047947B (en) | 2015-07-23 | 2015-07-23 | Cellular cavity-stage integrated fuel cell electrode and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438992.0A CN105047947B (en) | 2015-07-23 | 2015-07-23 | Cellular cavity-stage integrated fuel cell electrode and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105047947A CN105047947A (en) | 2015-11-11 |
| CN105047947B true CN105047947B (en) | 2017-04-26 |
Family
ID=54454321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510438992.0A Expired - Fee Related CN105047947B (en) | 2015-07-23 | 2015-07-23 | Cellular cavity-stage integrated fuel cell electrode and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105047947B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355947B (en) * | 2015-11-25 | 2017-08-15 | 山东理工大学 | The method that 3 D-printing has stereo channel honeycomb type solid oxide fuel cell |
| CN107394212B (en) * | 2017-07-07 | 2020-06-05 | 杨军 | Three-dimensional porous electrode, and preparation method and application thereof |
| WO2021013682A1 (en) * | 2019-07-19 | 2021-01-28 | Basf Se | Three-dimensional porous catalyst, catalyst carrier or absorbent structure of stacked strands |
| CN111106356A (en) * | 2019-11-14 | 2020-05-05 | 西安交通大学 | Heat storage type integrated foam metal electrode |
| CN112414234B (en) * | 2020-11-04 | 2022-08-19 | 西安近代化学研究所 | Solid-liquid phase mixed material centroid positioning device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327410A (en) * | 1999-08-30 | 2001-12-19 | 日本碍子株式会社 | Corrugated wall honeycomb structure and production method thereof |
| JP2006327904A (en) * | 2005-05-30 | 2006-12-07 | Babcock Hitachi Kk | Hydrogen manufacturing apparatus and fuel cell system provided with the hydrogen manufacturing apparatus |
| CN101157054A (en) * | 2007-11-12 | 2008-04-09 | 李钢坤 | Metallic carrier for catalyst |
| CN101273488A (en) * | 2005-09-28 | 2008-09-24 | 焊接研究院 | Fuel cell assembly |
-
2015
- 2015-07-23 CN CN201510438992.0A patent/CN105047947B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327410A (en) * | 1999-08-30 | 2001-12-19 | 日本碍子株式会社 | Corrugated wall honeycomb structure and production method thereof |
| JP2006327904A (en) * | 2005-05-30 | 2006-12-07 | Babcock Hitachi Kk | Hydrogen manufacturing apparatus and fuel cell system provided with the hydrogen manufacturing apparatus |
| CN101273488A (en) * | 2005-09-28 | 2008-09-24 | 焊接研究院 | Fuel cell assembly |
| CN101157054A (en) * | 2007-11-12 | 2008-04-09 | 李钢坤 | Metallic carrier for catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105047947A (en) | 2015-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105047947B (en) | Cellular cavity-stage integrated fuel cell electrode and preparation method thereof | |
| CN105070932B (en) | A kind of close-coupled cylindrical ion exchange film fuel battery and preparation method thereof | |
| CN112331858B (en) | Fuel cell electrode with catalyst in-situ grown on ordered structure microporous layer and preparation method of membrane electrode | |
| CN104037424A (en) | Lithium-air Battery Cathodes And Methods Of Making The Same | |
| CN104159666A (en) | Use of mesoporous graphite particles for electrochemical applications | |
| CN110890550B (en) | Air electrode and preparation method and application thereof | |
| CN112382767B (en) | Fuel cell electrode in-situ preparation method based on double-layer ordered structure microporous layer | |
| CN104437481B (en) | The synthetic method of dispersed nano yttrium oxide eelctro-catalyst | |
| CN111081909A (en) | Compressible quasi-solid nickel-iron battery prepared based on 3D printing technology and preparation method | |
| CN101000963A (en) | Manufacturing method of membrane electrode of fuel cell | |
| CN211125821U (en) | High-performance three-dimensional precoating current collector | |
| CN105070921B (en) | Integrated fuel cell electrode employing cascade flow field distribution and preparation method of integrated fuel cell electrode | |
| CN113506877A (en) | High-energy-density microporous lithium battery electrode and preparation method thereof | |
| CN206422150U (en) | The tubular positive plate of dividing plate is not configured | |
| CN201689934U (en) | Membrane electrode component with integrated flow field structure | |
| CN201226365Y (en) | Honeycomb cathode for lithium battery | |
| CN209981365U (en) | Novel positive plate structure | |
| CN203607486U (en) | Storage battery grid | |
| CN110707335B (en) | Three-dimensional self-supporting composite structure electrode, preparation method thereof and lithium-air battery | |
| CN203179985U (en) | Container formation lead-acid battery grid | |
| CN112599790A (en) | Cold pressing preparation method of air electrode | |
| CN201667292U (en) | Capacitor of high capacity and large housing | |
| CN220543947U (en) | Battery pole piece, lithium battery and electric equipment | |
| CN216818390U (en) | Pole piece, battery cell and cylindrical battery | |
| CN220138348U (en) | Lead-acid storage battery grid for power locomotive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Longhui Inventor after: Li Yinshi Inventor after: Chen Jie Inventor after: Jia Zhe Inventor after: Jiang Li Inventor before: Li Yinshi Inventor before: Chen Jie Inventor before: Jia Zhe Inventor before: Jiang Li |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180428 Address after: 221200 No. 1 Ring Road, Suining County Economic Development Zone, Xuzhou, Jiangsu Patentee after: Jiangsu Hanwate Electric Power Technology Co. Ltd. Address before: 710049 Xianning West Road, Xi'an, Xi'an, Shaanxi Patentee before: Xi'an Jiaotong University |
|
| 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: 20170426 Termination date: 20200723 |