CN1780039A - Proton exchange-membrane fuel cell with false cell - Google Patents
Proton exchange-membrane fuel cell with false cell Download PDFInfo
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- CN1780039A CN1780039A CNA2004100876746A CN200410087674A CN1780039A CN 1780039 A CN1780039 A CN 1780039A CN A2004100876746 A CNA2004100876746 A CN A2004100876746A CN 200410087674 A CN200410087674 A CN 200410087674A CN 1780039 A CN1780039 A CN 1780039A
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- battery
- false
- proton exchange
- battery pack
- cell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
A proton exchange membrane type fuel battery with a pseudobattery features that a bipolar plate named as pseudobattery is additionally used between the H2 and O2 collecting plates and their terminal plates and a membrane whose thickness is equal to MEA is additionally used between H2 and O2 collecting plate and said pseudobattery for preventing the influence of condensed water to the normal working of battery set.
Description
Technical field
The present invention relates to fuel cell field, be specially a kind of Proton Exchange Membrane Fuel Cells that has false battery.
Background technology
Fuel cell is a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT) that chemical energy in fuel and the oxidant is converted into electric energy by the electrocatalytic reaction on the electrode.Wherein proton exchange model fuel cell (PEMFC) is an electrolyte with perfluorinated sulfonic acid type solid polymer, platinum/charcoal or platinum-ruthenium/charcoal is an eelctro-catalyst, hydrogen or purification reformation gas are fuel, and air or pure oxygen are oxidant, and having the graphite of gas flow channel or the metallic plate of surface modification is bipolar plates.So far, the battery pack of most PEMFC is assembled by the filter press mode, and great majority adopt the form of interior common conduit.The main body of battery pack is the repetition of membrane electrode (MEA), bipolar plates and corresponding seal unit, and an end is the oxygen collector plate, and the other end is the hydrogen collector plate.What face mutually with these two bafflers is the end plate of battery pack, if two end plates is made of metal, also needs to add the insulation board by the engineering plastics preparation between baffler and end plate.
So far be used to assemble the proton exchange membrane of PEMFC battery pack, all need have water to have the ability proton conducting, generally adopt the pre-humidifying method of reaction gas.
When the gas by pre-humidification entered battery pack, because the temperature at battery pack two ends is lower with respect to the temperature of gas, therefore, because the water vapour in the gas becomes supersaturated vapor, condensation produced aqueous water at the first segment battery at place, gas access.The existence of a large amount of aqueous waters can cause the reduction of oxygen transfer speed in the oxygen cathode diffusion layer, increases concentration polarization, reduces battery performance; In addition, because generally the caliber than common conduit is little for the caliber of the pipeline of battery inlet, so after gas enters common conduit, in the not fully development of place, gas access gas, particularly the air inflow of first segment battery compare less, more than two reasons finally cause battery pack not work.At present, the document that does not have this respect.
Summary of the invention
The object of the present invention is to provide a kind of Proton Exchange Membrane Fuel Cells that has false battery, this fuel cell is that battery pack structure is done to improve, it is low to adopt this method can well solve place, gas access first segment battery performance, thereby causes the problem of whole battery group cisco unity malfunction.
Technical scheme of the present invention is: add a bipolar plates between hydrogen, oxygen collector plate and the end plate separately of primary cell group, add the film that a thickness equals MEA between hydrogen, oxygen collector plate and false battery.
The invention has the beneficial effects as follows:
1, the present invention is workable, does not change the packaging technology of primary cell group substantially.
2, two bipolar plates have solved battery pack because condensed water makes the serious problems of battery pack cisco unity malfunction by the PEMFC battery pack is increased in the present invention.
3, the uniformity according to single pond of battery pack of the present invention improves greatly, the work that battery pack can safety.
Description of drawings
Fig. 1 is a battery pack structure schematic diagram in the prior art.
Fig. 2 is a structural representation of the present invention.
Embodiment
The present invention (sees Fig. 1 in the primary cell group, 1 is end plate, 2 is the oxygen collector plate, 3 is MEA, 4 is bipolar plates, 5 is MEA, 6 is bipolar plates, 7 is MEA, 8 is the hydrogen collector plate, 9 is end plate, wherein 4,5,6 can repeat) hydrogen, oxygen collector plate and end plate separately add a bipolar plates (being called false battery), simultaneously at hydrogen, add the film that a thickness equals MEA between oxygen collector plate and the false battery, this film should be insulation, airtight, nonmetallic materials (the polyester of anti-100 ℃ of high temperature, Merlon, polyformaldehyde), as shown in Figure 2,1 is end plate, 1 ' be false battery, 2 ' be film, 2 is the oxygen collector plate, 3 is MEA, 4 is bipolar plates, 5 is MEA, 6 is bipolar plates, 7 is MEA, 8 is the hydrogen collector plate, 3 ' be false battery, 4 ' be film, 9 is end plate, wherein 4,5,6 can repeat.When entering battery pack for the gas by pre-humidification, the water of the condensation overwhelming majority enters atmosphere because the effect of gravity enters common conduit by false battery with tail exhaust body.Film is for well sealing between hydrogen, oxygen unipolar plate and the false battery.
Embodiment
Assemble a Proton Exchange Membrane Fuel Cells group that does not have false battery, electrode area is 573cm
2, the battery joint number is 20 joints, at 300mA/cm
2Electric current down during operation (battery temperature is 60 ℃) total voltage of battery pack be 15V; place, gas access first segment single battery voltage is 0.73V; reduce to 0.7V after three minutes; drop to 0.65V after five minutes; then descend fast; voltage dropped to 0.1V in one minute, caused battery pack protection, the battery pack cisco unity malfunction.Have the battery pack of false battery with one 20 joint of same condition and material assembling, in same environment and condition at 300mA/cm
2Down operation of electric current, the total voltage of battery pack is 16V during beginning, place, gas access first segment single battery voltage is 0.75V, the total voltage of battery pack operation battery pack after hour and place, gas access first segment single battery voltage not have variation substantially.
Claims (1)
1, a kind of Proton Exchange Membrane Fuel Cells that has false battery is characterized in that: add a bipolar plates between hydrogen, oxygen collector plate and the end plate separately of primary cell group, add the film that a thickness equals MEA between hydrogen, oxygen collector plate and false battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100876746A CN100338804C (en) | 2004-11-26 | 2004-11-26 | Proton exchange-membrane fuel cell with false cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100876746A CN100338804C (en) | 2004-11-26 | 2004-11-26 | Proton exchange-membrane fuel cell with false cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1780039A true CN1780039A (en) | 2006-05-31 |
| CN100338804C CN100338804C (en) | 2007-09-19 |
Family
ID=36770218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100876746A Active CN100338804C (en) | 2004-11-26 | 2004-11-26 | Proton exchange-membrane fuel cell with false cell |
Country Status (1)
| Country | Link |
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| CN (1) | CN100338804C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195061A (en) * | 2010-03-17 | 2011-09-21 | 中兴电工机械股份有限公司 | Fuel cell pile structure capable of promoting even distribution of gas in main flow channel |
| CN108134123A (en) * | 2016-12-01 | 2018-06-08 | 中国科学院大连化学物理研究所 | A kind of pile of redox flow batteries |
| CN111916788A (en) * | 2020-08-14 | 2020-11-10 | 贵州梅岭电源有限公司 | Fuel cell heat balance electric pile |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9821856D0 (en) * | 1998-10-08 | 1998-12-02 | Ici Plc | Bipolar plates for fuel cells |
| US6924052B2 (en) * | 2002-04-24 | 2005-08-02 | General Motors Corporation | Coolant flow field design for fuel cell stacks |
| CN1459885A (en) * | 2002-05-16 | 2003-12-03 | 台湾神户电池股份有限公司 | PEM fuel cell and method of changing PEM fuel cell film electrode set |
| CN1507094A (en) * | 2002-12-10 | 2004-06-23 | 亚太燃料电池科技股份有限公司 | Double plate and fuel cell pack with pressure-resisting pad |
-
2004
- 2004-11-26 CN CNB2004100876746A patent/CN100338804C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195061A (en) * | 2010-03-17 | 2011-09-21 | 中兴电工机械股份有限公司 | Fuel cell pile structure capable of promoting even distribution of gas in main flow channel |
| CN108134123A (en) * | 2016-12-01 | 2018-06-08 | 中国科学院大连化学物理研究所 | A kind of pile of redox flow batteries |
| CN111916788A (en) * | 2020-08-14 | 2020-11-10 | 贵州梅岭电源有限公司 | Fuel cell heat balance electric pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100338804C (en) | 2007-09-19 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Owner name: XINYUAN POWER CO., LTD. Free format text: FORMER OWNER: DALIAN INST OF CHEMICOPHYSICS, CHINESE ACADEMY OF SCIENCES Effective date: 20071116 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071116 Address after: 116025 Liaoning Province, Dalian City High-tech Park Qixianling Torch Road No. 1, block A No. 401 Patentee after: Sunrise Power Co., Ltd. Address before: 116023 No. 457, Zhongshan Road, Liaoning, Dalian Patentee before: Dalian Institute of Chemical Physics, Chinese Academy of Sciences |