RU2017127684A - Способ образования электролита - Google Patents

Способ образования электролита Download PDF

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RU2017127684A
RU2017127684A RU2017127684A RU2017127684A RU2017127684A RU 2017127684 A RU2017127684 A RU 2017127684A RU 2017127684 A RU2017127684 A RU 2017127684A RU 2017127684 A RU2017127684 A RU 2017127684A RU 2017127684 A RU2017127684 A RU 2017127684A
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Russia
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electrolyte
anode layer
preceding paragraphs
suspension
fuel cell
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RU2017127684A
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English (en)
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RU2696618C2 (ru
RU2017127684A3 (ru
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Адам Боун
Роберт ЛИ
Карл МЭТТЬЮЗ
Майк ЛЭНКИН
Махфуджур РАХМАН
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Серес Интеллектуал Проперти Компани Лимитед
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Publication of RU2017127684A3 publication Critical patent/RU2017127684A3/ru
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    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
    • H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
    • H01M8/126—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides the electrolyte containing cerium oxide
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Claims (22)

1. Способ формирования электролита для твердооксидного топливного элемента на несущей металлической основе, включающий:
a. объединение порошкообразного легированного диоксида церия со спекающей добавкой и растворителем с получением суспензии;
b. нанесение суспензии на анодный слой;
c. сушку с получением неспеченного электролита; и
d. обжиг неспеченного электролита с формированием спеченного электролита;
причем суспензия на стадии b. содержит порошкообразный легированный диоксид церия с физическим свойством, выбранным из бимодального распределения частиц по размеру, площади поверхности, определенной методом BET, в диапазоне от 15 м2/г до 40 м2/г, сферической морфологии, или их комбинаций
2. Способ по п. 1, отличающийся тем, что он включает дополнительную стадию истирающего размола суспензии перед нанесением на анодный слой.
3. Способ по п. 1 или 2, отличающийся тем, что бимодальное распределение частиц по размеру включает частицы, образующие пик в диапазоне от 0,1 мкм до 0,4 мкм и пик в диапазоне от 0,5 мкм до 1,5 мкм.
4. Способ по любому из предыдущих пунктов, отличающийся тем, что спекающая добавка содержится в количестве, составляющем от 0,5% до 5% от общего количества катионов.
5. Способ по любому из предыдущих пунктов, отличающийся тем, что он включает дополнительную стадию формирования неспеченного электролита из чернил, пригодных для трафаретной печати.
6. Способ по любому из предыдущих пунктов, отличающийся тем, что неспеченный электролит содержит множество слоев электролита, сформированных посредством послойного нанесения суспензии на анодный слой и сушки перед нанесением каждого последующего слоя.
7. Способ по любому из предыдущих пунктов, отличающийся тем, что анодный слой является спеченным анодным слоем.
8. Способ по любому из пп. 1-6, отличающийся тем, что анодный слой является неспеченным анодным слоем, и неспеченный анодный слой и неспеченный электролит спекают во время одной стадии обжига.
9. Способ по любому из предыдущих пунктов, отличающийся тем, что электролит покрывает анодный слой и металлическую основу.
10. Способ по любому из предыдущих пунктов, отличающийся тем, что температура спекания на стадии d. ниже 1100°С.
11. Способ по любому из предыдущих пунктов, отличающийся тем, что процесс спекания на стадии d. выполняют в воздухе.
12. Способ по любому из предыдущих пунктов, отличающийся тем, что он дополнительно содержит стадию прессования после нанесения суспензии на анодный слой, но перед обжигом неспеченного электролита.
13. Способ изготовления топливного элемента, включающий формирование электролита на анодном слое с несущей металлической основой с использованием способа по любому из предыдущих пунктов, и нанесение материала катода на электролит.
14. Электролит, полученный способом по любому из пп. 1-13.
15. Топливный элемент, содержащий электролит по п. 14.
16. Батарея топливных элементов, содержащая по меньшей мере два топливных элемента по п. 15.
17. Применение топливного элемента по п. 15 или батареи топливных элементов по п. 16 для генерации электрической энергии.
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