JP7358652B2 - Online evaluation method for separator roasting of molten carbonate fuel cells - Google Patents
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Description
本発明は、溶融炭酸塩型燃料電池の技術分野に属し、溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価方法に関する。 The present invention belongs to the technical field of molten carbonate fuel cells, and relates to an online evaluation method for separator torrefaction of molten carbonate fuel cells.
溶融炭酸塩型燃料電池（ＭＣＦＣ）は、６５０℃で作動する高温燃料電池であり、貴金属を触媒とする必要がなく、燃料が入手しやすく、騒音が少なく、汚染物がほぼゼロ排出であり、発電効率が高く、熱電併給が図られるなどの利点があり、１００キロワットレベルからメガワットレベルの分散型発電所や固定型発電所に適しており、将来性が期待できる。 Molten carbonate fuel cells (MCFCs) are high-temperature fuel cells that operate at 650°C, do not require precious metal catalysts, have easy fuel availability, low noise, and almost zero pollutant emissions. It has the advantages of high power generation efficiency and the ability to co-generate heat and power, making it suitable for distributed power plants and fixed power plants ranging from 100 kilowatts to megawatts, and has promising future prospects.
溶融炭酸塩型燃料電池では、重要な部材には、電極、セパレータ、電解質、双極板などがあり、この中でも、セパレータの性能の良否が電池の性能に大きな影響を与える。一般には、セパレータの性能はその気孔率及び平均孔径につながり、成形後のセパレータの細孔分布が主に成形前の膜に含まれる揮発されにくい粘着剤や溶媒の含有量及びこれらの分布の均一さに依存する。含有量が高い場合、成形後の膜の気孔率及び平均孔径が大きく、膜に含浸させた電解質が多くなり、膜の電気抵抗が小さいが、平均孔径が大きいため、陰極や陽極ではガス溢れが発生しやすく、一方、含有量が低い場合、膜の気孔率及び平均孔径が減少し、ガスバリアに有利であるが、膜に含浸させた電解質が少なくなり、イオン伝導に不利である。このため、セパレータについては適切な気孔率及び孔径分布が求められ、一般には、セパレータについて、気孔率は５０～７０％、孔径は１μｍ未満であり、均一に分布していることが期待される。 In a molten carbonate fuel cell, important components include electrodes, separators, electrolytes, bipolar plates, etc. Among these, the performance of the separator has a large impact on the performance of the cell. In general, the performance of a separator is related to its porosity and average pore diameter, and the pore distribution of the separator after molding is mainly affected by the content of adhesives and solvents that are difficult to volatilize in the film before molding, and the uniformity of their distribution. It depends on the situation. If the content is high, the porosity and average pore size of the formed membrane will be large, and more electrolyte will be impregnated into the membrane, resulting in a lower electrical resistance of the membrane, but because the average pore size is larger, gas overflow will occur at the cathode and anode. On the other hand, when the content is low, the porosity and average pore size of the membrane decrease, which is advantageous for gas barrier, but less electrolyte is impregnated into the membrane, which is disadvantageous for ion conduction. For this reason, the separator is required to have an appropriate porosity and pore size distribution, and in general, the separator is expected to have a porosity of 50 to 70%, a pore size of less than 1 μm, and a uniform distribution.
溶融炭酸塩型燃料電池のセパレータは、電池の初回起動時に原位置焙焼を行うので、初回の焙焼効果が電池の性能を直接左右する。技術的秘密と技術的封鎖により、中国では、ＭＣＦＣに関する研究はまだ初期段階である。現在、ＭＣＦＣに取り込んでいる機関としては、主に中国科学院大連化学物理研究所、中国華能集団クリーンエネルギー技術研究院有限公司及び一部の大学があり、溶融炭酸塩型燃料電池のセパレータ焙焼効果のオンライン評価に関しては、まだ関連する検討や著作がなく、このため、溶融炭酸塩型燃料電池の発電性能が確保されにくい。 The separator of a molten carbonate fuel cell undergoes in-situ torrefaction during the first startup of the cell, so the initial roasting effect directly affects the performance of the cell. Research on MCFC is still in its infancy in China due to technical secrecy and technical blockade. Currently, the institutions that are involved in MCFC are mainly Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China Huaneng Group Clean Energy Technology Research Institute Co., Ltd., and some universities. Regarding online evaluation of effectiveness, there are no related studies or publications yet, and for this reason, it is difficult to ensure the power generation performance of molten carbonate fuel cells.
本発明の目的は、上記の従来技術の欠点を解決し、溶融炭酸塩型燃料電池の発電性能を効果的に確保できる溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価方法を提供することである。 The purpose of the present invention is to provide an online evaluation method for separator roasting of a molten carbonate fuel cell, which can solve the above-mentioned drawbacks of the prior art and effectively ensure the power generation performance of the molten carbonate fuel cell. be.
上記の目的を達成させるために、本発明による溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価方法は、
溶融炭酸塩型燃料電池を組み立てるに先立って、溶融炭酸塩型燃料電池のセパレータの重量を記録し、溶融炭酸塩型燃料電池のセパレータの組成から、溶融炭酸塩型燃料電池のセパレータに含まれる溶媒、粘着剤及び可塑剤の質量を算出するステップ１）と、
溶融炭酸塩型燃料電池のセパレータの熱重量曲線から、溶融炭酸塩型燃料電池のセパレータの焙焼の昇温プログラムを設定するステップ２）と、
溶融炭酸塩型燃料電池のセパレータの焙焼の昇温プログラムに従って、組み立てられた溶融炭酸塩型燃料電池に対して昇温焙焼を行い、昇温中、溶融炭酸塩型燃料電池の陰極に空気を導入し、溶融炭酸塩型燃料電池の陽極に窒素ガスを導入しながら、陰極の排気口での酸素ガス濃度の変化をオンラインで監視し、酸素ガス濃度が小さくなってから大きくなると、溶融炭酸塩型燃料電池のセパレータ内の溶媒、粘着剤及び可塑剤が完全に燃焼されたことを示し、このとき、溶融炭酸塩型燃料電池のセパレータが多孔質のシート状構造となり、
溶融炭酸塩型燃料電池が４９０～５００℃に安定化すると、陰極への空気導入を停止し、このとき、電解質が徐々に溶融して溶融炭酸塩型燃料電池のセパレータに含浸し、
溶融炭酸塩型燃料電池が６００～６５０℃に安定化すると、溶融炭酸塩型燃料電池が電解質で満たされ、このとき、溶融炭酸塩型燃料電池は発電能力を備えるものとなり、溶融炭酸塩型燃料電池の陽極に水素ガスを導入し、溶融炭酸塩型燃料電池の陰極に空気及び二酸化炭素を導入し、溶融炭酸塩型燃料電池の内部で活性化反応が行われた後、溶融炭酸塩型燃料電池について放電テストを行った結果、溶融炭酸塩型燃料電池の陰極及び陽極でガス溢れやガス漏れの危険がなく、単一電池の平均開回路電圧が予め設定された電圧値よりも大きい場合、溶融炭酸塩型燃料電池のセパレータの焙焼が合格し、それ以外の場合、溶融炭酸塩型燃料電池のセパレータの焙焼が合格しておらず、これにより、溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価が完了するステップ３）とを含む。
In order to achieve the above object, an online evaluation method for separator roasting of a molten carbonate fuel cell according to the present invention comprises:
Prior to assembling the molten carbonate fuel cell, record the weight of the molten carbonate fuel cell separator and determine the solvent content in the molten carbonate fuel cell separator from the composition of the molten carbonate fuel cell separator. , step 1) of calculating the mass of the adhesive and the plasticizer;
Step 2) of setting a temperature increase program for roasting the separator of the molten carbonate fuel cell from the thermogravimetric curve of the separator of the molten carbonate fuel cell;
According to the heating program for roasting the separator of the molten carbonate fuel cell, the assembled molten carbonate fuel cell is subjected to heating roasting, and during heating, air is supplied to the cathode of the molten carbonate fuel cell. While introducing nitrogen gas into the anode of the molten carbonate fuel cell, changes in the oxygen gas concentration at the cathode exhaust port were monitored online, and when the oxygen gas concentration decreased and then increased, the molten carbonate This indicates that the solvent, adhesive, and plasticizer in the separator of the salt fuel cell have been completely burned, and at this time, the separator of the molten carbonate fuel cell becomes a porous sheet-like structure.
When the molten carbonate fuel cell stabilizes at 490-500°C, the introduction of air to the cathode is stopped, at which time the electrolyte gradually melts and impregnates the separator of the molten carbonate fuel cell,
When the molten carbonate fuel cell stabilizes at 600-650°C, the molten carbonate fuel cell is filled with electrolyte, and the molten carbonate fuel cell becomes capable of generating electricity. Hydrogen gas is introduced into the anode of the cell, air and carbon dioxide are introduced into the cathode of the molten carbonate fuel cell, and after an activation reaction takes place inside the molten carbonate fuel cell, the molten carbonate fuel If the battery is subjected to a discharge test and there is no risk of gas overflow or gas leakage at the cathode and anode of the molten carbonate fuel cell, and the average open circuit voltage of the single cell is greater than the preset voltage value, If the separator roasting of the molten carbonate fuel cell passes, otherwise the separator roasting of the molten carbonate fuel cell does not pass, thereby making the separator roasting of the molten carbonate fuel cell pass. step 3) in which an online evaluation of the baking process is completed.
昇温中、溶融炭酸塩型燃料電池の陰極に１Ｌ／分の空気を導入し、溶融炭酸塩型燃料電池の陽極に０．５Ｌ／分の窒素ガスを導入する。 During the temperature rise, 1 L/min of air is introduced into the cathode of the molten carbonate fuel cell, and 0.5 L/min of nitrogen gas is introduced into the anode of the molten carbonate fuel cell.
溶融炭酸塩型燃料電池が６００～６５０℃に安定化すると、溶融炭酸塩型燃料電池が電解質で満たされ、このとき、溶融炭酸塩型燃料電池は発電能力を備えるものとなり、
溶融炭酸塩型燃料電池の陽極に１Ｌ／分の水素ガスを導入し、溶融炭酸塩型燃料電池の陰極に３Ｌ／分の空気及び１Ｌ／分の二酸化炭素を導入する。
Once the molten carbonate fuel cell is stabilized at 600-650° C., the molten carbonate fuel cell is filled with electrolyte, and the molten carbonate fuel cell is then capable of generating electricity;
1 L/min of hydrogen gas is introduced into the anode of the molten carbonate fuel cell, and 3 L/min of air and 1 L/min of carbon dioxide are introduced into the cathode of the molten carbonate fuel cell.
予め設定された電圧値が１．１Ｖである。 The preset voltage value is 1.1V.
本発明は以下の有益な効果を有する。
本発明による溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価方法によれば、具体的に実行される際に、電池の昇温焙焼において、陰極に空気、陽極に窒素ガスが導入されることにより、陽極の酸化が回避され、また、焙焼過程において、陰極の排気口での酸素ガス濃度の変化をオンラインで監視し、酸素ガス濃度が小さくなってから大きくなると、セパレータ内の粘着剤及び可塑剤が完全に燃焼されたことを示し、このとき、セパレータが多孔質のシート状構造となり、また、電池が初期発電能力を備えたものとなったときに、陽極に水素ガス、陰極に空気及び二酸化炭素が導入され、電池内部で短時間の活性化反応が行われた後、電池について放電テストを行うことができ、テストにおいては、電池の陰極及び陽極でガス溢れやガス漏れの危険がなく、単一電池の平均開回路電圧が１．１Ｖよりも大きい場合、電池のセパレータの焙焼が合格し、これにより、溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価が実現され、溶融炭酸塩型燃料電池の発電性能が確保され、ＭＣＦＣの発電性能の最適化などにおいて指導的な意義がある。
The present invention has the following beneficial effects.
According to the online evaluation method for separator torrefaction of a molten carbonate fuel cell according to the present invention, when carried out specifically, air is introduced into the cathode and nitrogen gas is introduced into the anode during temperature-elevated torrefaction of the battery. This avoids oxidation of the anode, and also monitors the change in oxygen gas concentration at the cathode exhaust port online during the roasting process, and when the oxygen gas concentration becomes small and then increases, the adhesive inside the separator At this time, the separator becomes a porous sheet-like structure, and when the battery has initial power generation capacity, hydrogen gas is added to the anode and to the cathode. After air and carbon dioxide are introduced and a short activation reaction takes place inside the battery, the battery can be subjected to a discharge test, which eliminates the risk of gas overflow or leakage at the battery's cathode and anode. is absent, and the average open circuit voltage of a single cell is greater than 1.1 V, the battery separator torrefaction is passed, thereby realizing the online evaluation of the separator torrefaction of molten carbonate fuel cells, The power generation performance of molten carbonate fuel cells is ensured, and it has a guiding significance in optimizing the power generation performance of MCFC.
以下、図面を参照しながら本発明についてさらに詳細に説明する。 Hereinafter, the present invention will be explained in more detail with reference to the drawings.
図１に示すように、本発明による溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価方法は、
溶融炭酸塩型燃料電池を組み立てるに先立って、溶融炭酸塩型燃料電池のセパレータの重量を記録し、溶融炭酸塩型燃料電池のセパレータの組成から、溶融炭酸塩型燃料電池のセパレータに含まれる溶媒、粘着剤及び可塑剤の質量を算出するステップ１）と、
溶融炭酸塩型燃料電池のセパレータの熱重量曲線から、溶融炭酸塩型燃料電池のセパレータの焙焼の昇温プログラムを設定するステップ２）と、
溶融炭酸塩型燃料電池のセパレータの焙焼の昇温プログラムに従って、組み立てられた溶融炭酸塩型燃料電池に対して昇温焙焼を行い、昇温中、溶融炭酸塩型燃料電池の陰極に空気を導入し、溶融炭酸塩型燃料電池の陽極に窒素ガスを導入しながら、陰極の排気口での酸素ガス濃度の変化をオンラインで監視し、酸素ガス濃度が小さくなってから大きくなると、溶融炭酸塩型燃料電池のセパレータ内の溶媒、粘着剤及び可塑剤が完全に燃焼されたことを示し、このとき、溶融炭酸塩型燃料電池のセパレータが多孔質のシート状構造となり、
溶融炭酸塩型燃料電池が４９０～５００℃に安定化すると、陰極への空気導入を停止し、このとき、電解質が徐々に溶融して溶融炭酸塩型燃料電池のセパレータに含浸し、
溶融炭酸塩型燃料電池が６００～６５０℃に安定化すると、溶融炭酸塩型燃料電池が電解質で満たされ、このとき、溶融炭酸塩型燃料電池は発電能力を備えるものとなり、溶融炭酸塩型燃料電池の陽極に水素ガスを導入し、溶融炭酸塩型燃料電池の陰極に空気及び二酸化炭素を導入し、溶融炭酸塩型燃料電池の内部で活性化反応が行われた後、溶融炭酸塩型燃料電池について放電テストを行った結果、溶融炭酸塩型燃料電池の陰極及び陽極でガス溢れやガス漏れの危険がなく、単一電池の平均開回路電圧が１．１Ｖよりも大きい場合、溶融炭酸塩型燃料電池のセパレータの焙焼が合格し、それ以外の場合、溶融炭酸塩型燃料電池のセパレータの焙焼が合格しておらず、これにより、溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価が完了するステップ３）とを含む。
As shown in FIG. 1, the online evaluation method for separator roasting of a molten carbonate fuel cell according to the present invention is as follows:
Prior to assembling the molten carbonate fuel cell, record the weight of the molten carbonate fuel cell separator and determine the solvent content in the molten carbonate fuel cell separator from the composition of the molten carbonate fuel cell separator. , step 1) of calculating the mass of the adhesive and the plasticizer;
Step 2) of setting a temperature increase program for roasting the separator of the molten carbonate fuel cell from the thermogravimetric curve of the separator of the molten carbonate fuel cell;
According to the heating program for roasting the separator of the molten carbonate fuel cell, the assembled molten carbonate fuel cell is subjected to heating roasting, and during heating, air is supplied to the cathode of the molten carbonate fuel cell. While introducing nitrogen gas into the anode of the molten carbonate fuel cell, changes in the oxygen gas concentration at the cathode exhaust port were monitored online, and when the oxygen gas concentration decreased and then increased, the molten carbonate This indicates that the solvent, adhesive, and plasticizer in the separator of the salt fuel cell have been completely burned, and at this time, the separator of the molten carbonate fuel cell becomes a porous sheet-like structure.
When the molten carbonate fuel cell stabilizes at 490-500°C, the introduction of air to the cathode is stopped, at which time the electrolyte gradually melts and impregnates the separator of the molten carbonate fuel cell,
When the molten carbonate fuel cell stabilizes at 600-650°C, the molten carbonate fuel cell is filled with electrolyte, and the molten carbonate fuel cell becomes capable of generating electricity. Hydrogen gas is introduced into the anode of the cell, air and carbon dioxide are introduced into the cathode of the molten carbonate fuel cell, and after an activation reaction takes place inside the molten carbonate fuel cell, the molten carbonate fuel As a result of the discharge test performed on the cell, if there is no risk of gas overflow or gas leakage at the cathode and anode of the molten carbonate fuel cell, and the average open circuit voltage of the single cell is greater than 1.1V, the molten carbonate fuel cell The separator torrefaction of the molten carbonate fuel cell passes, otherwise the separator torrefaction of the molten carbonate fuel cell does not pass, which makes the online of the separator torrefaction of the molten carbonate fuel cell step 3) in which the evaluation is completed.
実施例１
本実施例の具体的な操作は以下のとおりである。
１）電極有効面積が０．２ｍ2の溶融炭酸塩型燃料電池のセルを一対用意し、厚さ０．７ｍｍ、重量４２０ｇのセパレータを選択し、セパレータを製造するための組成から推定した結果、メタアルミン酸リチウム粉末の含有量は約７０～８０％であった。
２）セパレータの熱重量曲線から、セパレータ焙焼の昇温プログラムを作成した。
３）昇温プログラムに従って、組み立てられたセルに昇温焙焼を行い、昇温中、陰極に１Ｌ／分の空気を導入し、陽極に０．５Ｌ／分の窒素ガスを導入した。
４）酸素ガス濃度検出装置を用いて、陰極の排気ガスを監視し、酸素ガス濃度が最初の０．２Ｌ／分から０．２Ｌ／分程度になると、セパレータ内の粘着剤及び可塑剤などがほぼ完全に焙焼され、
電池が４９０～５００℃に安定化すると、陰極への空気導入を停止し、
電池が６００～６５０℃に安定化すると、セパレータはほぼ電解質で満たされ、さらに、陽極に１Ｌ／分の水素ガスを導入し、陰極に３Ｌ／分の空気及び１Ｌ／分の二酸化炭素を導入し、電池の内部で短時間の活性化反応が行われた後、電池について放電テストを行うことができ、
ここでは、セパレータ焙焼の品質は、電池の陰極及び陽極でガス溢れやガス漏れの危険の有無に基づいて判定され、セルの開回路電圧が１．１２Ｖに達する場合、今回のセパレータ焙焼が高品質であることを示している。
Example 1
The specific operation of this example is as follows.
1) A pair of molten carbonate fuel cells with an effective electrode area of 0.2 m 2 was prepared, a separator with a thickness of 0.7 mm and a weight of 420 g was selected, and the results were estimated from the composition for manufacturing the separator. The content of lithium metaaluminate powder was about 70-80%.
2) A temperature increase program for separator roasting was created from the thermogravimetric curve of the separator.
3) The assembled cell was roasted at elevated temperature according to the temperature increasing program, and during the temperature rising, 1 L/min of air was introduced into the cathode and 0.5 L/min of nitrogen gas was introduced into the anode.
4) Use an oxygen gas concentration detection device to monitor the exhaust gas from the cathode, and when the oxygen gas concentration drops from the initial 0.2 L/min to about 0.2 L/min, the adhesive and plasticizer in the separator are almost completely removed. fully roasted,
When the battery stabilized at 490 to 500°C, air introduction to the cathode was stopped.
When the battery stabilized at 600-650°C, the separator was almost filled with electrolyte, and 1 L/min of hydrogen gas was introduced into the anode, and 3 L/min of air and 1 L/min of carbon dioxide were introduced into the cathode. , after a short activation reaction takes place inside the battery, the battery can be subjected to a discharge test,
Here, the quality of separator roasting is judged based on the presence or absence of the risk of gas overflow or gas leakage at the cathode and anode of the battery, and if the open circuit voltage of the cell reaches 1.12V, the separator roasting this time is It shows that it is of high quality.
Claims (4)
溶融炭酸塩型燃料電池のセパレータの熱重量曲線から、溶融炭酸塩型燃料電池のセパレータの焙焼の昇温プログラムを設定するステップ２）と、
溶融炭酸塩型燃料電池のセパレータの焙焼の昇温プログラムに従って、組み立てられた溶融炭酸塩型燃料電池に対して昇温焙焼を行い、昇温中、溶融炭酸塩型燃料電池の陰極に空気を導入し、溶融炭酸塩型燃料電池の陽極に窒素ガスを導入しながら、陰極の排気口での酸素ガス濃度の変化をオンラインで監視し、酸素ガス濃度が小さくなってから大きくなると、溶融炭酸塩型燃料電池のセパレータ内の溶媒、粘着剤及び可塑剤が完全に燃焼されたことを示し、このとき、溶融炭酸塩型燃料電池のセパレータが多孔質のシート状構造となり、
溶融炭酸塩型燃料電池が４９０～５００℃に安定化すると、陰極への空気導入を停止し、このとき、電解質が徐々に溶融して溶融炭酸塩型燃料電池のセパレータに含浸し、
溶融炭酸塩型燃料電池が６００～６５０℃に安定化すると、溶融炭酸塩型燃料電池が電解質で満たされ、このとき、溶融炭酸塩型燃料電池は発電能力を備えるものとなり、溶融炭酸塩型燃料電池の陽極に水素ガスを導入し、溶融炭酸塩型燃料電池の陰極に空気及び二酸化炭素を導入し、溶融炭酸塩型燃料電池の内部で活性化反応が行われた後、溶融炭酸塩型燃料電池について放電テストを行った結果、溶融炭酸塩型燃料電池の陰極及び陽極でガス溢れやガス漏れの危険がなく、単一電池の平均開回路電圧が予め設定された電圧値よりも大きい場合、溶融炭酸塩型燃料電池のセパレータの焙焼が合格し、それ以外の場合、溶融炭酸塩型燃料電池のセパレータの焙焼が合格しておらず、これにより、溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価が完了するステップ３）とを含む、ことを特徴とする溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価方法。 Prior to assembling the molten carbonate fuel cell, record the weight of the molten carbonate fuel cell separator and determine the solvent content in the molten carbonate fuel cell separator from the composition of the molten carbonate fuel cell separator. , step 1) of calculating the mass of the adhesive and the plasticizer;
Step 2) of setting a temperature increase program for roasting the separator of the molten carbonate fuel cell from the thermogravimetric curve of the separator of the molten carbonate fuel cell;
According to the heating program for roasting the separator of the molten carbonate fuel cell, the assembled molten carbonate fuel cell is subjected to heating roasting, and during heating, air is supplied to the cathode of the molten carbonate fuel cell. While introducing nitrogen gas into the anode of the molten carbonate fuel cell, changes in the oxygen gas concentration at the cathode exhaust port were monitored online, and when the oxygen gas concentration decreased and then increased, the molten carbonate This indicates that the solvent, adhesive, and plasticizer in the separator of the salt fuel cell have been completely burned, and at this time, the separator of the molten carbonate fuel cell becomes a porous sheet-like structure.
When the molten carbonate fuel cell stabilizes at 490-500°C, the introduction of air to the cathode is stopped, at which time the electrolyte gradually melts and impregnates the separator of the molten carbonate fuel cell,
When the molten carbonate fuel cell stabilizes at 600-650°C, the molten carbonate fuel cell is filled with electrolyte, and the molten carbonate fuel cell becomes capable of generating electricity. Hydrogen gas is introduced into the anode of the cell, air and carbon dioxide are introduced into the cathode of the molten carbonate fuel cell, and after an activation reaction takes place inside the molten carbonate fuel cell, the molten carbonate fuel If the battery is subjected to a discharge test and there is no risk of gas overflow or gas leakage at the cathode and anode of the molten carbonate fuel cell, and the average open circuit voltage of the single cell is greater than the preset voltage value, If the separator roasting of the molten carbonate fuel cell passes, otherwise the separator roasting of the molten carbonate fuel cell does not pass, thereby making the separator roasting of the molten carbonate fuel cell pass. A method for online evaluation of separator roasting of a molten carbonate fuel cell, comprising step 3), wherein online evaluation of roasting is completed.
溶融炭酸塩型燃料電池の陽極に１Ｌ／分の水素ガスを導入し、溶融炭酸塩型燃料電池の陰極に３Ｌ／分の空気及び１Ｌ／分の二酸化炭素を導入する、ことを特徴とする請求項１に記載の溶融炭酸塩型燃料電池のセパレータ焙焼のオンライン評価方法。 Once the molten carbonate fuel cell is stabilized at 600-650° C., the molten carbonate fuel cell is filled with electrolyte, and the molten carbonate fuel cell is then capable of generating electricity;
A claim characterized in that 1 L/min of hydrogen gas is introduced into the anode of the molten carbonate fuel cell, and 3 L/min of air and 1 L/min of carbon dioxide are introduced into the cathode of the molten carbonate fuel cell. An online evaluation method for separator roasting of a molten carbonate fuel cell according to item 1.
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