Bipolar plate for fuel cell stack of vehicle, has molded articles into which several recesses are attached in different transforming depths, where one recess with small transforming depth forms channel base

摘要

The plate has molded articles (1) into which several recesses (V1-V6) are attached in different transforming depths. The molded articles are connected with each other at the recesses corresponding to each other and lying together. The recess (V1) with the small transforming depth forms a channel base, and the recess (V2) with the larger transforming depth relative to the recess (V1) and/or a reference plane (Z) forms a channel bar. Channels attached to the molded articles form outer flow fields (F1) with the molded articles connected with each other.