公开(公告)号：US08420184B2

公开(公告)日：2013-04-16

申请号：US12585367

申请日：2009-09-14

申请人： Ching-Yuan Bai ,  Min-Sheng Wu ,  Ming-Der Ger

发明人： Ching-Yuan Bai ,  Min-Sheng Wu ,  Ming-Der Ger

IPC分类号： B05D5/12

CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M8/0208

摘要： A method for preparing a surface modification coating of metal bipolar plates is disclosed, which comprises the following steps: providing a substrate; pre-treating the substrate by processing the substrate, depositing a Ni-layer on the substrate, or a combination thereof, to form an activated layer on the surface of the substrate; packing the substrate in a powder mixture containing a permeated master metal, an activator, and filler powder; and heat-treating the packing to allow the permeated master metal to diffuse into the activated layer and then to form a surface modification coating. The permeation rate of the permeated master metal can be increased due to the activated layer having a high defect concentration. Hence, it is possible to prepare a surface modification coating at a low temperature. The surface modification coating of the present invention can also decrease the interface contact resistance between the bipolar plates and gas diffusion layers.

摘要翻译： 公开了一种制备金属双极板的表面改性涂层的方法，其包括以下步骤：提供基材; 通过处理衬底，在衬底上沉积Ni层或其组合来预处理衬底，以在衬底的表面上形成活化层; 将基材包装在含有渗透的母金属，活化剂和填料粉末的粉末混合物中; 并且对该填料进行热处理以允许渗透的母金属扩散到活化层中，然后形成表面改性涂层。 由于具有高缺陷浓度的活化层，可以增加渗透的母金属的渗透速率。 因此，可以在低温下制备表面改性涂层。 本发明的表面改性涂层也可以降低双极板和气体扩散层之间的界面接触电阻。

公开(公告)号：US20100075063A1

公开(公告)日：2010-03-25

申请号：US12585367

申请日：2009-09-14

申请人： Ching-Yuan Bai ,  Min-Sheng Wu ,  Ming-Der Ger

发明人： Ching-Yuan Bai ,  Min-Sheng Wu ,  Ming-Der Ger

IPC分类号： B05D5/12

CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M8/0208

摘要： A method for preparing a surface modification coating of metal bipolar plates is disclosed, which comprises the following steps: providing a substrate; pre-treating the substrate by processing the substrate, depositing a Ni-layer on the substrate, or a combination thereof, to form an activated layer on the surface of the substrate; packing the substrate in a powder mixture containing a permeated master metal, an activator, and filler powder; and heat-treating the packing to allow the permeated master metal to diffuse into the activated layer and then to form a surface modification coating. The permeation rate of the permeated master metal can be increased due to the activated layer having a high defect concentration. Hence, it is possible to prepare a surface modification coating at a low temperature. The surface modification coating of the present invention can also decrease the interface contact resistance between the bipolar plates and gas diffusion layers.

摘要翻译： 公开了一种制备金属双极板的表面改性涂层的方法，其包括以下步骤：提供基材; 通过处理衬底，在衬底上沉积Ni层或其组合来预处理衬底，以在衬底的表面上形成活化层; 将基材包装在含有渗透的母金属，活化剂和填料粉末的粉末混合物中; 并且对该填料进行热处理以允许渗透的母金属扩散到活化层中，然后形成表面改性涂层。 由于具有高缺陷浓度的活化层，可以增加渗透的母金属的渗透速率。 因此，可以在低温下制备表面改性涂层。 本发明的表面改性涂层也可以降低双极板和气体扩散层之间的界面接触电阻。

公开(公告)号：US20100323101A1

公开(公告)日：2010-12-23

申请号：US12585366

申请日：2009-09-14

申请人： Ching-Yuan Bai ,  Tse-Min Wen ,  Ming-Der Ger ,  Shuo-Jen Lee ,  Po-Hsiu Chien

发明人： Ching-Yuan Bai ,  Tse-Min Wen ,  Ming-Der Ger ,  Shuo-Jen Lee ,  Po-Hsiu Chien

IPC分类号： H01M4/04

CPC分类号： H01M8/0206 ,  B22F2998/00 ,  H01M8/0228 ,  H01M2008/1095 ,  C22C1/05

摘要： A method for preparing a surface modification coating of metal bipolar plates is disclosed, which comprises the following steps: providing a metal substrate; pre-treating the metal substrate by substrate processing, depositing a Ni-based alloy layer on the metal substrate, or the combination thereof to form an activated layer on the surface of the metal substrate; packing the metal substrate in a powder mixture comprising permeated master metal, an activator, and filler powders; heat-treating the metal substrate in the powder mixture to allow the permeated master metal to diffuse into the activated layer and then to form a surface modification coating. The permeation rate of the permeated master metal can be increased due to high defect concentration of the activated layer. Hence, a corrosion-resistant surface modification coating is prepared at a low temperature, and it can decrease the interface contact resistance between the metal bipolar plates and gas diffusion layers.

摘要翻译： 公开了一种制备金属双极板的表面改性涂层的方法，其包括以下步骤：提供金属基板; 通过基板处理对金属基板进行预处理，在金属基板上沉积Ni基合金层或其组合以在金属基板的表面上形成活化层; 将金属基材包装在包含渗透的母金属，活化剂和填料粉末的粉末混合物中; 对粉末混合物中的金属基材进行热处理以允许渗透的母金属扩散到活化层中，然后形成表面改性涂层。 渗透的主金属的渗透速率由于活性层的高缺陷浓度而增加。 因此，在低温下制备耐腐蚀表面改性涂层，并且可以降低金属双极板和气体扩散层之间的界面接触电阻。