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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
11-07-2023 дата публикации

Bipolar plate structure for megawatt fuel cell stack and fuel cell stack

Номер: CN116417631A
Автор: MING PINGWEN, YANG DAIJUN, LI BING, ZHANG CUNMAN, SHI QITONG, FENG CONG, ZHENG WEIBO, TANG FUMIN
Принадлежит:

The invention relates to a bipolar plate structure for a megawatt fuel cell stack and a fuel cell stack, the bipolar plate structure comprises a bipolar plate body, the bipolar plate body is provided with a gas inlet, a gas inlet channel, a gas outlet and a gas outlet channel, the bipolar plate body is provided with a plurality of reaction areas, the gas inlet channel is communicated with the gas inlet and each reaction area, and the gas outlet channel is communicated with the gas outlet. The gas outlet channel is communicated with the gas outlet and each reaction area. According to the bipolar plate, the plurality of reaction areas are arranged on the bipolar plate body, equivalently, the plurality of reaction areas are divided in a relatively large area, and only the planeness and the processing precision in the reaction areas need to meet the assembly requirements of a fuel cell stack; the area of a reaction region of the bipolar plate can be expanded by multiple times on the premise ...

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Номер записи: 1
30-06-2023 дата публикации

Method and device for evaluating interface contact state of gas diffusion layer and application

Номер: CN116359286A
Автор: MING PINGWEN, YANG DAIJUN, LI BING, ZHANG CUNMAN, SHI QITONG, FENG CONG, ZHENG WEIBO
Принадлежит:

The invention relates to a gas diffusion layer interface contact state evaluation method and device and application, the evaluation method comprises the following steps: measuring and calculating substrate layer resistance, microporous layer resistance and interface resistance in a to-be-evaluated gas diffusion layer sample, the interface resistance being the interface resistance between a substrate layer and a microporous layer; measuring and calculating the contact area of microporous layer carbon particles and base material layer carbon fibers in the gas diffusion layer sample to be evaluated; calculating equivalent contact resistance of the micropore layer carbon particles and the base material layer carbon fibers based on the contact area and the interface resistance; and determining the interface contact state of the to-be-evaluated gas diffusion layer sample based on the equivalent contact resistance. Compared with the prior art, the method has the advantages that the equivalent ...

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Номер записи: 2