公开(公告)号：US20220077474A1

公开(公告)日：2022-03-10

申请号：US17530063

申请日：2021-11-18

Applicant: Taiyuan University of Science and Technology

Inventor： Fuqiang ZHAO ,  Zhiying GAO ,  Qingxue HUANG ,  Huiqing QI ,  Hongwei WANG

IPC: H01M8/026 ,  H01M8/0206

Abstract: A method for forming a flow channel on a metal bipolar plate of a fuel cell includes: pre-treating a metal polar plate; subjecting the metal polar plate to low-temperature heating; forming a flow channel on the metal polar plate by rolling; cutting an inlet and outlet for gas and cooling liquid on the metal polar plate; performing surface treatment on the metal polar plate; bonding two metal polar plates to form a metal bipolar plate; and trimming the metal bipolar plate. The flow channel is formed by two pre-forming and one truing, and design parameters of punches and dies of the rollers used are determined by calculation models.