The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2011
Filed:
Aug. 28, 2006
Junqing Dong, Shenzhen, CN;
Zhiqiang Zhao, Shenzhen, CN;
Junqing Dong, Shenzhen, CN;
Zhiqiang Zhao, Shenzhen, CN;
BYD Company Limited, Shenzhen, CN;
Abstract
This invention provides a type of cathode flow field plate for fuel cells. The cathode flow field plate comprises a cooling flow field and a reacting flow field, gas entrances, gas exits and plate ribs. Here, an end of said flow field is connected to the gas entrances. The other end is connected to the gas exits. Said cooling flow field comprises of a distributing rib. Said distributing rib is located between the gas entrances and the gas exits. There are connecting pores between said gas entrances and the distributing rib. The cathode flow field plate for fuel cells provided in this invention uses the distributing rib and the connecting pores to divide the gas into cooling gas and reacting gas. Since a single gas source is used, the only parameter subject to adjustment is the total amount of gas flow. Thus the control of the gases is relatively simple. The devices controlling the sources of the cooling gas and the reacting gas can be minimized. Therefore, the fuel cells using the flow field plate provided in this invention can be low in cost.