CN2554809Y - Integral fuel cell - Google Patents
Integral fuel cell Download PDFInfo
- Publication number
- CN2554809Y CN2554809Y CN02265512U CN02265512U CN2554809Y CN 2554809 Y CN2554809 Y CN 2554809Y CN 02265512 U CN02265512 U CN 02265512U CN 02265512 U CN02265512 U CN 02265512U CN 2554809 Y CN2554809 Y CN 2554809Y
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- channels
- channel
- branch
- fluid
- 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
Images
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model relates to an integrated type fuel cell, which consists of two groups of fuel cell stack and a current collection plate. A main hydrogen gas inlet channel, a main cooling water inlet channel, a main air inlet channel, a main air outlet channel, a main cooling water outlet channel and a main hydrogen gas outlet channel are arranged in the current collection plate. At least a branch hydrogen gas inlet channel, a branch cooling water inlet channel, a branch air inlet channel, a branch air outlet channel, a branch cooling water outlet channel and a branch hydrogen gas outlet channel which are vertically communicated with the main hydrogen gas inlet channel, the main cooling water inlet channel, the main air inlet channel, the main air outlet channel, the main cooling water outlet channel and the main hydrogen gas outlet channel are arranged in the main channels, the branch channels are connected with the corresponding fluid inlet channel and fluid outlet channel of each fuel cell; each fluid channel of the current collection plate is arranged in the different areas or on the different bedding planes inside the same plate and is not mixed to flow mutually. Compared with the prior art, the utility model has the advantages that the structure is compact, the resistance and the pressure losses is low, and the installation is easy, etc.
Description
Technical Field
The utility model relates to a fuel cell especially relates to acompact structure, the higher integrated form fuel cell of efficiency.
Background
An electrochemical fuel cell is a device that is capable of converting hydrogen fuel and an oxidant into electrical energy and reaction products. The inner core component of the device is a Membrane Electrode (MEA), which is composed of a proton exchange Membrane and two porous conductive materials sandwiched between two surfaces of the Membrane, such as carbon paper. The membrane contains a uniform and finely dispersed catalyst, such as a platinum metal catalyst, for initiating an electrochemical reaction at the interface between the membrane and the carbon paper. The electrons generated in the electrochemical reaction process can be led out by conductive objects at two sides of the membrane electrode through an external circuit to form a current loop.
At the anode end of the membrane electrode, fuel can permeate through a porous diffusion material (carbon paper) and undergo electrochemical reaction on the surface of a catalyst to lose electrons to form positive ions, and the positive ions can pass through a proton exchange membrane through migration to reach the cathode end at the other end of the membrane electrode. At the cathode end of the membrane electrode, a gas containing an oxidant (e.g., oxygen), such as air, forms negative ions by permeating through a porous diffusion material (carbon paper) and electrochemically reacting on the surface of the catalyst to give electrons. The anions formed at the cathode end react with the positive ions transferred from the anode end to form reaction products.
In a pem fuel cell using hydrogen as the fuel and oxygen-containing air as the oxidant (or pure oxygen as the oxidant), the catalytic electrochemical reaction of the fuel hydrogen in the anode region produces hydrogen cations(or protons). The proton exchange membrane assists the migration of positive hydrogen ions from the anode region to the cathode region. In addition, the proton exchange membrane separates the hydrogen-containing fuel gas stream from the oxygen-containing gas stream so that they do not mix with each other to cause explosive reactions.
In the cathode region, oxygen gains electrons on the catalyst surface, forming negative ions, which react with the hydrogen positive ions transported from the anode region to produce water as a reaction product. In a proton exchange membrane fuel cell using hydrogen, air (oxygen), the anode reaction and the cathode reaction can be expressed by the following equations:
and (3) anode reaction:
and (3) cathode reaction:
in a typical pem fuel cell, a Membrane Electrode (MEA) is generally placed between two conductive plates, and the surface of each guiding plate in contact with the MEA is die-cast, stamped, or mechanically milled to form at least one or more guiding grooves. The guide electrode plates can be plates made of metal materials or plates made of graphite materials. The diversion pore canals and the diversion grooves on the diversion electrode plates respectively guide the fuel and the oxidant into the anode area and the cathode area on two sides of the membrane electrode. In the structure of a single proton exchange membrane fuel cell, only one membrane electrode is arranged, and a flow guide polar plate of anode fuel and a flow guide polar plate of cathode oxidant are respectively arranged on two sides of the membrane electrode. The flow guide polar plates are used as a current flow collection mother plate and mechanical supports at two sides of the membrane electrode, and flow guide grooves on the flow guide polar plates are also used as channels for fuel and oxidant to enter the surfaces of the anode and the cathode and as channels for taking away water generated in the operation process of the fuel cell.
In order to increase the total power of the whole proton exchange membrane fuel cell, two or more single cells can be connected in series to form a battery pack in a straight-stacked manner or connected in a flat-laid manner to form a battery pack. In the direct-stacking and serial-type battery pack, two surfaces of one polar plate can be provided with flow guide grooves, wherein one surface can be used as an anode flow guide surface of one membrane electrode, and the other surface can be used as a cathode flow guide surface of another adjacent membrane electrode, and the polar plate is called a bipolar plate. A series of cells are connected together in a manner to form a battery pack. The battery pack is generally fastened together into one body by a front end plate, a rear end plate and a tie rod.
A typical battery pack generally includes: (1) the fuel (such as hydrogen, methanol or hydrogen-rich gas obtained by reforming methanol, natural gas and gasoline) and the oxidant (mainly oxygen or air) are uniformly distributed in the diversion trenches of the anode surface and the cathode surface; (2) cooling fluid (such as water) is uniformly distributed into cooling channels in each battery pack through an inlet and an outlet of the cooling fluid and a flow guide channel, and heat generated by electrochemical exothermic reaction of hydrogen and oxygen in the fuel cell is absorbed and taken out of the battery pack for heat dissipation; (3) the outlets of the fuel gas and the oxidant gas and the corresponding flow guide channels can carry out liquid and vapor water generated in the fuel cell when the fuel gas and the oxidant gas are discharged. Typically, all fuel, oxidant, and cooling fluid inlets and outlets are provided in one or both end plates of the fuel cell stack.
The proton exchange membrane fuel cell can be used as a power system of vehicles such as vehicles and ships, and can also be used as a mobile or fixed power station.
Proton exchange membrane fuel cells are generally assembled by several single cells in series or parallel to form a fuel cell stack.
As shown in fig. 1-3, fig. 1 is a schematic structural diagram of a single-cell flow guide plate of a fuel cell stack, fig. 2 is a schematic structural diagram of a single-cell three-in-one electrode of the fuel cell stack, and fig. 3 is a schematic structural diagram of the fuel cell stack. The flow guide polar plate and three-in-one electrode of single cell of fuel cell are equipped with six (or less than six) flow guide holes, these six flow guide holes are respectively fuel (hydrogen) inlet, fuel (hydrogen) outlet, oxidant (air) inlet, oxidant (air) outlet, cooling fluid (water) inlet and cooling fluid (water) outlet. After the guide polar plates of a plurality of fuel battery monocells and a three-in-one electrode are assembled into a fuel battery stack, six guide channels in the fuel battery stack are formed by the guide polar plates and six guide holes in the three-in-one electrode, oxidant (air) is uniformly introduced into the six guide channels respectively, the oxidant (air) is uniformly distributed on the guide polar plates of each monocell through the guide channels and reacts on the electrode, product water and excessive oxidant (air) generated by the reaction are uniformly collected into an oxidant (air) discharge channel in the fuel battery stack, other channels are respectively used for introducing fuel (hydrogen) into the channels, the fuel (hydrogen) is collected into the discharge channel, cooling fluid (water) is introduced into the channels, and the cooling fluid (water) is collected into the discharge channel.
As shown in fig. 4 to 5, in the current engineering design of the fuel cell stack, the six flow channels are generally directly collected on the same panel at the front end of the fuel cell stack (fig. 4), and the six flow channels are also collected on two panels at the front end and the rear end of the fuel cell stack, for example, three flow channels are collected on each panel at the front end and the rear end (fig. 5). The six channels of the fuel cell stack generated by the former design technology are integrated on the same panel, and the six channels of the fuel cell stack generated by the latter design technology are integrated on the front panel and the rear panel.
The inlets and outlets of all oxidant (air), fuel (hydrogen) and cooling fluid (water) on a plurality of (more than 2) fuel cell stacks are uniformly integrated to form six channels. The oxidant (air), fuel (hydrogen) and cooling fluid (water) in the six channels are uniformly distributed to each fuel cell stack, and the oxidant (air), fuel (hydrogen) and cooling fluid in each fuel cell stack are discharged and uniformly converged on the large channels from which the oxidant (air), fuel (hydrogen) and cooling fluid (water) are discharged in the six channels, so that the operating conditions of a plurality of fuel cell stacks are uniform and identical. This integration technique of several fuel cell stacks is generally achieved by the following method: the fuel cell stack is arranged into a fuel cell stack array, six fluid pipelines are respectively arranged beside the array, for example, a large pipeline for oxidant (air) branches off a plurality of uniform thin branch pipes, each thin branch pipe is connected with the oxidant (air) in each fuel cell stack, and the other five pipelines also branch off a plurality of uniform thin branch pipes and are connected with the same corresponding fluid in each fuel cell stack.
The currently widely implemented fuel cell flow guide channel integrated panel design and multiple fuel cell stack integration technology have the following defects:
(1) the six diversion channels are directly converged on the same panel at the front end of the fuel cell stack, the diversion channels in the fuel cell stack are correspondingly long, fluid resistance is easily generated, large pressure loss is caused, and then fluid is unevenly distributed in each single cell in the fuel cell stack, and performance difference of each single cell is caused.
(2) The design makes the inlet and outlet of the diversion channel at the front and back ends respectively to force the pipeline connection to be incapable of being concentrated together and dispersed at the two ends, when the fuel cell is used as a vehicle-mounted or ship-mounted power system, the pipeline dispersion is not beneficial to the arrangement of the cell.
(3) The technical defect is that the design and installation are very difficult because of too many pipelines, leakage is easy to generate and the crowding problem is very prominent.
Disclosure of Invention
The purpose of the present invention is to provide an integrated fuel cell with compact structure, low resistance and pressure loss, and easy installation, in order to overcome the drawbacks of the prior art.
The purpose of the utility model can be realized through the following technical scheme: an integrated fuel cell is characterized in that the integrated fuel cell comprises at least two groups of fuel cell stacks and a current collecting plate, wherein a total hydrogen inlet channel, a total cooling water inlet channel, a total air outlet channel, a total cooling water outlet channel and a total hydrogen outletchannel are arranged in the current collecting plate, at least one branch hydrogen inlet channel, a branch cooling water inlet channel, a branch air outlet channel, a branch cooling water outlet channel and a branch hydrogen outlet channel which are vertically communicated with the total channels are respectively arranged in the total channels, and the branch channels are connected with corresponding fluid inlet and outlet channels of each fuel cell; the fluid channels of the collecting plate are in different areas or different layers in the same plate and are not in series flow with each other; the fuel cell stack comprises at least one group of monocells, a positive and negative current collecting mother board and two bottom end boards; the current collecting plate is fixedly matched with the bottom end plate of each cell stack to form an integrated fuel cell.
The current collecting plate is a cuboid plate, the inlet and the outlet of each fluid main channel are respectively arranged on the front surface and the back surface, and the inlet and the outlet of each fluid branch channel are arranged on the side surface connected with the corresponding cell stack.
The current collecting plate is a cuboid plate, the inlet and the outlet of each fluid main channel are arranged on the front surface, and the inlet and the outlet of each fluid branch channel are arranged on the side surface connected with the corresponding cell stack.
The two groups of cell stacks are arranged on two side surfaces of the collector plate and clamp and share the collector plate, thereby forming the two-in-one integrated fuel cell.
The four groups of cell stacks are arranged on two side surfaces of the collector plate and clamped two by two and share the collector plate, thereby forming the four-in-one integrated fuel cell.
The current led out by the current collecting mother board of each fuel cell stack can be output after being connected in series or in parallel.
The single cell comprises a flow guide polar plate and a proton exchange membrane electrode, and two flow guide polar plates are clamped at two sides of the proton exchange membrane electrode respectively to form the single cell.
Compared with the prior art, the utility model has the advantages of it is following:
1. each flow guide channel is concentrated on one collector plate in the middle of the fuel cell stack, so that the whole fuel cell is more compact and the volume is reduced.
2. Six total fluid channels are arranged on a collector plate in the middle of the fuel cell stack and are connected with the fluid channels of each fuel cell stack through branch fluid channels, so that the whole fuel cell stack can be arranged in a plurality of groups, and because the collector plate is arranged in the middle of the fuel cell stack, each fluid channel is half the length of the whole fuel cell stack, the problems of resistance, pressure loss and the like caused by overlong fluid channels are avoided, and the fluid is more uniformly distributed in each single cell in the fuel cell stack.
3. The fuel cell stack can perform various fluid distribution from the middle, and the integration is more convenient and easy, and the assembly is simple. The whole integrated fuel cell array is more compact in volume.
4. The flow distance of the fluid is shortened, the circulation is accelerated, the electrochemical reaction is more uniform, the heat dissipation is facilitated, and the reaction efficiency is improved.
5. The maintenance is convenient, if one cell stack has a fault, the other cell stacks can work as usual only by disassembling the cell stack for maintenance.
Drawings
FIG. 1 is a schematic structural diagram of a current guide plate of a single fuel cell;
FIG. 2 is a schematic structural diagram of a single membrane electrode of a conventional fuel cell;
FIG. 3 is a schematic view of a conventional fuel cell;
FIG. 4 is a schematic structural diagram of six channel inlets and outlets of a conventional fuel cell on an end plate;
FIG. 5 is a schematic structural diagram of a prior fuel cell with six channel inlets and outlets respectively on front and rear end plates;
fig. 6 is a schematic structural view of the fuel cell of the present invention;
fig. 7 is a schematic structural view of the front face of the collector plate of the fuel cell of the present invention;
FIG. 8 is a sectional view A-A of FIG. 7;
fig. 9 is a schematic structural diagram of an embodiment of the fuel cell of the present invention;
fig. 10 is a top view of fig. 9.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
Example 1
As shown in fig. 6, an integrated fuel cell is composed of four sets of fuel cell stacks A, B, C, D (A, C sets are bilaterally symmetrical to B, D sets, B, D sets are not shown) and a current collecting plate E. The current collecting plate E is a cuboid plate, the inlet and the outlet of each fluid main channel are respectively arranged on the front surface and the back surface, and the inlet and the outlet of each fluid branch channel are arranged on the side surface connected with the corresponding cell stack. The collector plate E is internally provided with a total hydrogen inlet channel (port) 1, a total cooling water inlet channel (port) 2, a total air inlet channel (port) 3, a total air outlet channel (port) 4, a total cooling water outlet channel (port) 5 and a total hydrogen outlet channel (port) 6, the total channels are internally provided with two branch hydrogen inlet channels (ports) 7 and 8, branch cooling water inlet channels (ports) 9 and 10, branch air inlet channels (ports) 11 and 12, branch air channels (ports) 13 and 14, branch cooling water inlet channels (ports) 15 and 16 and branch hydrogen outlet channels (ports) 17 and 18 which are vertically communicated with the total channels, and the branch channels are connected with corresponding fluid inlet and outlet channels (not shown) of each fuel cell; the fluid channels of the collector plate E are in different areas or different layers in the same plate and are not in series flow with each other; the four groups of fuel cell stacks A, B, C, D, wherein A, C groups are on the same side of the current collecting plate E, B, D groups are on the same side of the current collecting plate E, A groups and B groups are symmetrical left and right, C groups and D groups are symmetrical left and right, and B, D groups are not shown. The fuel cell stack (taking group A as an example) comprises a group single cell 19, a positive and negative current collecting mother board 20 and two bottom end boards 21; the current collecting plate E is fixedly matched with the bottom end plate of each cell stack A, B, C, D to form a four-in-one integrated fuel cell.
Example 2
As shown in fig. 7 to 10, an integrated fuel cell is composed of four fuel cell stacks A, B, C, D (of which A, C and B, D are bilaterally symmetrical) and a current collecting plate E. The current collecting plate E is a cuboid plate, the inlet and the outlet of each fluid main channel are arranged on the front surface of the current collecting plate E, and the inlet and the outlet of each fluid branch channel are arranged on the side surface connected with the corresponding cell stack. The collector plate E is internally provided with a total hydrogen inlet channel (port) 1, a total cooling water inlet channel (port) 2, a total air inlet channel (port) 3, a total air outlet channel (port) 4, a total cooling water outlet channel (port) 5 and a total hydrogen outlet channel (port) 6, the total channels are internally provided with two branch hydrogen inlet channels (ports) 7 and 8, branch cooling water inlet channels (ports) 9 and 10, branch air inlet channels (ports) 11 and 12, branch air channels (ports) 13 and 14, branch cooling water inlet channels (ports) 15 and 16 and branch hydrogen outlet channels (ports) 17 and 18 which are vertically communicated with the total channels, and the branch channels are connected with corresponding fluid inlet and outlet channels (not shown) of each fuel cell; the fluid channels of the collector plate E are in different areas or different layers in the same plate and are not in series flow with each other; the four groups of fuel cell stacks A, B, C, D, wherein A, C groups are on the same side of the current collecting plate E, B, D groups are on the same side of the current collecting plate E, A groups are symmetrical to B groups, and C groups are symmetrical to D groups. The fuel cell stack (taking group A as an example) comprises a group single cell 19, a positive and negative current collecting mother board 20 and two bottom end boards 21; the current collecting plate E is fixedly matched with the bottom end plate of each cell stack A, B, C, D to form a four-in-one integrated fuel cell.
In addition, the fuel cell of the present invention can be formed by combining twoor six, eight, ten, etc. groups of cell stacks.
Claims (7)
1. An integrated fuel cell is characterized in that the integrated fuel cell comprises at least two groups of fuel cell stacks and a current collecting plate, wherein a total hydrogen inlet channel, a total cooling water inlet channel, a total air outlet channel, a total cooling water outlet channel and a total hydrogen outlet channel are arranged in the current collecting plate, at least one branch hydrogen inlet channel, a branch cooling water inlet channel, a branch air outlet channel, a branch cooling water outlet channel and a branch hydrogen outlet channel which are vertically communicated with the total channels are respectively arranged in the total channels, and the branch channels are connected with corresponding fluid inlet and outlet channels of each fuel cell; the fluid channels of the collecting plate are in different areas or different layers in the same plate and are not in series flow with each other; the fuel cell stack comprises at least one group of monocells, a positive and negative current collecting mother board and two bottom end boards; the current collecting plate is fixedly matched with the bottom end plate of each cell stack to form an integrated fuel cell.
2. The integrated fuel cell as claimed in claim 1, wherein the current collecting plate is a rectangular parallelepiped plate, the inlet and outlet of each of the fluid main channels are respectively provided on the front and rear surfaces, and the inlet and outlet of each of the fluid sub-channels are provided on the side surface connected to the corresponding cell stack.
3. The integrated fuel cell of claim 1, wherein the current collector is a rectangular parallelepiped plate, the inlet and outlet of each of the fluid main channels are provided on the front surface, and the inlet and outlet of each of the fluid sub-channels are provided on the side surface connected to the corresponding cell stack.
4. The integrated fuel cell of claim 2 or 3, wherein the stacks are two groups, each of the fluid main channels of the current collecting plate is provided with a branch channel vertically communicated with the fluid main channel, the branch channels are connected with the corresponding fluid inlet and outlet channels of each fuel cell, and the two groups of stacks are arranged on two sides of the current collecting plate and clamp and share the current collecting plate, thereby forming the two-in-one integrated fuel cell.
5. The integrated fuel cell of claim 2 or 3, wherein the cell stacks are four, two branch channels are provided in each fluid main channel of the current collecting plate, the branch channels are vertically communicated with the fluid main channel, the branch channels are connected with the corresponding fluid inlet and outlet channels of each fuel cell, and the four cell stacks are arranged on two sides of the current collecting plate, and are clamped in pairs and share the current collecting plate, so as to form the four-in-one integrated fuel cell.
6. The integrated fuel cell as set forth in claim 1, wherein the current derived from the collector motherboards of each fuel cell stack can be output by any series and parallel connection.
7. The integrated fuel cell of claim 1, wherein the single cell comprises a flow guide plate and a proton exchange membrane electrode, and one flow guide plate is clamped on each side of the proton exchange membrane electrode to form a single cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02265512U CN2554809Y (en) | 2002-07-15 | 2002-07-15 | Integral fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02265512U CN2554809Y (en) | 2002-07-15 | 2002-07-15 | Integral fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554809Y true CN2554809Y (en) | 2003-06-04 |
Family
ID=33731522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02265512U Expired - Fee Related CN2554809Y (en) | 2002-07-15 | 2002-07-15 | Integral fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2554809Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328816C (en) * | 2002-07-15 | 2007-07-25 | 上海神力科技有限公司 | Integrated fuel cell |
| CN100407485C (en) * | 2003-08-15 | 2008-07-30 | 上海神力科技有限公司 | Proton exchange film fuel cell pile collecting panel and its manufacturing method |
| CN100444452C (en) * | 2003-07-25 | 2008-12-17 | 上海神力科技有限公司 | A large-scale integrated fuel battery capable of being modularized assembled |
| CN101501912B (en) * | 2006-08-11 | 2011-06-22 | 丰田自动车株式会社 | Fuel cell system |
| CN107123820A (en) * | 2017-06-22 | 2017-09-01 | 天津中德应用技术大学 | New fuel cell heap cooling water flow conduits plate and its battery pack |
| CN113241457A (en) * | 2021-04-29 | 2021-08-10 | 国家电投集团氢能科技发展有限公司 | Fuel cell distribution end plate and fuel cell with same |
-
2002
- 2002-07-15 CN CN02265512U patent/CN2554809Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328816C (en) * | 2002-07-15 | 2007-07-25 | 上海神力科技有限公司 | Integrated fuel cell |
| CN100444452C (en) * | 2003-07-25 | 2008-12-17 | 上海神力科技有限公司 | A large-scale integrated fuel battery capable of being modularized assembled |
| CN100407485C (en) * | 2003-08-15 | 2008-07-30 | 上海神力科技有限公司 | Proton exchange film fuel cell pile collecting panel and its manufacturing method |
| CN101501912B (en) * | 2006-08-11 | 2011-06-22 | 丰田自动车株式会社 | Fuel cell system |
| CN107123820A (en) * | 2017-06-22 | 2017-09-01 | 天津中德应用技术大学 | New fuel cell heap cooling water flow conduits plate and its battery pack |
| CN107123820B (en) * | 2017-06-22 | 2024-02-13 | 天津中德应用技术大学 | Novel fuel cell stack cooling water flow passage plate and battery pack thereof |
| CN113241457A (en) * | 2021-04-29 | 2021-08-10 | 国家电投集团氢能科技发展有限公司 | Fuel cell distribution end plate and fuel cell with same |
| CN113241457B (en) * | 2021-04-29 | 2022-04-12 | 国家电投集团氢能科技发展有限公司 | Fuel cell distribution end plate and fuel cell with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1469502A (en) | Integrated fuel cell | |
| CN1194436C (en) | Improved fuel cell | |
| CN2554809Y (en) | Integral fuel cell | |
| CN1866592A (en) | Combined type flow guide polar plate suitable for normal pressure or low pressure fuel cell | |
| CN1571206A (en) | A large-scale integrated fuel battery capable of being modularized assembled | |
| CN2632867Y (en) | Large-scale integral fuel battery with modular assembly | |
| CN1320679C (en) | Inner wetting proton exchanging film fuel battery | |
| CN1198352C (en) | Fuel battery with higher output power | |
| CN1770527A (en) | Integrated fuel cell for optimization design for hydrogen gas access channels and circulating uses | |
| CN2829110Y (en) | Energy-saving fuel battery stack with hydrogen supplier | |
| CN2796119Y (en) | Combined flow guide dipolar plate suitable for constant voltage or low voltage fuel cell | |
| CN1508898A (en) | Guide polar plate capable of increnasing operation stability of fuel cell | |
| CN1635657A (en) | A double fuel cell power system capable of parallel working | |
| CN2674658Y (en) | Dual-fuel cell power system capable of parallelly operating | |
| CN2672882Y (en) | Stacking fuel cell on guide flow polar plate operated at low voltage or constant voltage | |
| CN2588554Y (en) | Carrent leading polar board structure for fuel battery | |
| CN2775853Y (en) | Integrated fuel cell for hydrogen entrance and exit passway and circulation use for optimizing design | |
| CN2476106Y (en) | Improved fuel battery | |
| CN2632868Y (en) | Proton-exchange membrane fuel battery collecting stream panel | |
| CN2554806Y (en) | High-efficient anti-corrosion compound flow collection mother board for fuel cell | |
| CN2796117Y (en) | Fuel cell hydrogen flow guide polar plate suitable for constanst voltage or low voltage operation | |
| CN1303716C (en) | Fuel cell with high output voltage | |
| CN1630121A (en) | Guiding polar plate capable of operating fuel battery pile under low-pressure or normal pressure | |
| CN2607670Y (en) | Fuel cell stack suitable for batch production and mounting | |
| CN2543216Y (en) | Fuel cell capable of realizig multiplication of output voltage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |