Patent Number: 8,574,783

Title: Fuel cell stack including buffer protrusion system in connection channel

Abstract: A fuel cell stack including membrane-electrode assemblies and separators formed between each of the membrane-electrode assemblies is disclosed. The membrane-electrode assemblies may each include an electrolyte membrane, an anode formed on a first surface of the electrolyte membrane, and a cathode formed on a second surface of the electrolyte membrane. Each of the separators may include an anode separator facing the anode and a cathode separator facing the cathode. Each of the separators may include at least two manifolds, a channel separated from the manifolds and facing either the anode or the cathode, and a connection channel fluidly connecting the manifold and the channel. The separator may also include a buffer protrusion system in the connection channel configured to disperse the flow of the fuel or the oxidant.

Inventors: Song; Kah-Young (Yongin-si, KR), Lee; Jin-Hwa (Yongin-si, KR), Han; Sang-Il (Yongin-si, KR), Kim; Hee-Tak (Yongin-si, KR), Kim; Tae-Yoon (Yongin-si, KR), Cho; Sung-Yong (Yongin-si, KR), Min; Myoung-Ki (Yongin-si, KR), Chai; Geun-Seok (Yongin-si, KR)

Assignee: Samsung SDI Co., Ltd.

International Classification: H01M 2/40 (20060101)

Expiration Date: 1/05/12017