Full-through-hole metal fiber sintered body fuel cell bipolar plate and fuel cell stack

A metal fiber, fuel cell technology, applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of easy tearing, increase the difficulty of the stack, low yield, etc., to increase the reaction area, improve volume power, and assembly difficulty. low effect
CN112838232AActive Publication Date: 2021-05-25WESTERN METAL MATERIAL
5 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WESTERN METAL MATERIAL
Publication Date
2021-05-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a full-through-hole metal fiber sintered body fuel cell bipolar plate and a fuel cell stack, the full-through-hole metal fiber sintered body fuel cell bipolar plate comprises a conductive partition plate and a flow field plate, the flow field plate is arranged on one side or two sides of the conductive partition plate, and the flow field plate is made of a metal fiber sintered body; the flow field plate and the conductive partition plate are in integrated sintering connection, welding connection or cementing connection. According to the all-through-hole metal fiber sintered body fuel cell bipolar plate and the fuel cell stack provided by the invention, the metal fiber sintered body is adopted as the flow field plate, so that fluid diffusion is uniform, the effective reaction area of gas is doubled, and the power density of the cell is improved; the metal fiber felt serves as a cooling channel of the cell stack, so that the cooling efficiency is improved; the cell stack volume is reduced; and the cell stack volume power is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The present invention relates to the field of fuel cell technology, and more particularly to a full-through-hole metal fiber sintered body fuel cell bipolar plate and a fuel cell stack.Background technique

[0002] The proton exchange membrane fuel cell (PEMFC) is an apparatus for converting chemical energy, high conversion efficiency, zero emissions such as hydrogen or purifying recombeid gas. Being an important development direction that solves the energy crisis. Typical PEMFC is composed of a film electrode assembly (MEA), a bipolar plate (BP) end plate, fastener, and sealing element, and the like. The membrane electrode assembly includes a gas diffusion layer, a proton exchange membrane, and a catalytic layer. The bipolar plate functional structure includes a flow field plate and a current collecting plate, wherein the flow field is a flow field passage of the fuel and an oxidant, and the collector collecting electrons is a current passage between the electrode ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More