Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for efficiently preparing high-quality graphite bipolar plate and graphite bipolar plate
The invention relates to a method for efficiently preparing a high-quality graphite bipolar plate and the graphite bipolar plate, and belongs to the technical field of fuel cells. The method comprises the following steps: treating raw materials, directly forming, roasting, and graphitizing to obtain the graphite bipolar plate, the method does not comprise the steps of kneading and dipping, and the raw material is green coke powder. The green coke powder is used for replacing raw materials subjected to calcination treatment in the prior art, the sintering characteristic of the green coke powder is utilized, binders such as asphalt are not needed, and the steps of kneading, flaking, grinding and the like of the green coke powder and the binders are omitted; a large number of air holes cannot be generated after primary roasting without using a binder, so that a primary roasted product does not need to be impregnated and secondarily roasted, a graphitized product does not need to be impregnated with resin for hole sealing treatment to improve density, then a flow channel is processed in manners of machining, mold pressing or injection molding and the like to obtain the bipolar plate, the technological process is simplified, and the production cost is reduced. And the production period is greatly shortened.
本发明涉及一种高效制备高质量石墨双极板的方法及石墨双极板，属于燃料电池技术领域。上述方法包括：将原料处理后直接成型，经过焙烧、石墨化处理后得到所述石墨双极板；不包括混捏、浸渍的步骤，上述原料为生焦粉。本发明利用生焦粉代替现有技术中经煅烧处理后的原料，利用生焦粉自身的烧结特性，无需沥青等粘结剂，省去了生焦粉与粘结剂混捏、轧片、磨粉等步骤；不使用粘结剂一次焙烧后也不会产生大量气孔，因此无需对一次焙烧品进行浸渍、二次焙烧，也无需石墨化制品浸渍树脂进行封孔处理以提高致密度、接着再通过机加工、模压或者注塑成型等方式加工出流道获得双极板，简化了工艺流程，极大缩短了生产周期。
Method for efficiently preparing high-quality graphite bipolar plate and graphite bipolar plate
The invention relates to a method for efficiently preparing a high-quality graphite bipolar plate and the graphite bipolar plate, and belongs to the technical field of fuel cells. The method comprises the following steps: treating raw materials, directly forming, roasting, and graphitizing to obtain the graphite bipolar plate, the method does not comprise the steps of kneading and dipping, and the raw material is green coke powder. The green coke powder is used for replacing raw materials subjected to calcination treatment in the prior art, the sintering characteristic of the green coke powder is utilized, binders such as asphalt are not needed, and the steps of kneading, flaking, grinding and the like of the green coke powder and the binders are omitted; a large number of air holes cannot be generated after primary roasting without using a binder, so that a primary roasted product does not need to be impregnated and secondarily roasted, a graphitized product does not need to be impregnated with resin for hole sealing treatment to improve density, then a flow channel is processed in manners of machining, mold pressing or injection molding and the like to obtain the bipolar plate, the technological process is simplified, and the production cost is reduced. And the production period is greatly shortened.
本发明涉及一种高效制备高质量石墨双极板的方法及石墨双极板，属于燃料电池技术领域。上述方法包括：将原料处理后直接成型，经过焙烧、石墨化处理后得到所述石墨双极板；不包括混捏、浸渍的步骤，上述原料为生焦粉。本发明利用生焦粉代替现有技术中经煅烧处理后的原料，利用生焦粉自身的烧结特性，无需沥青等粘结剂，省去了生焦粉与粘结剂混捏、轧片、磨粉等步骤；不使用粘结剂一次焙烧后也不会产生大量气孔，因此无需对一次焙烧品进行浸渍、二次焙烧，也无需石墨化制品浸渍树脂进行封孔处理以提高致密度、接着再通过机加工、模压或者注塑成型等方式加工出流道获得双极板，简化了工艺流程，极大缩短了生产周期。
Method for efficiently preparing high-quality graphite bipolar plate and graphite bipolar plate
一种高效制备高质量石墨双极板的方法及石墨双极板
LI QINGBO (Autor:in) / PEI XIAODONG (Autor:in) / SHEN BAOJIN (Autor:in) / WANG FAN (Autor:in) / LI TAO (Autor:in) / HAN HU (Autor:in)
27.12.2022
Patent
Elektronische Ressource
Chinesisch
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