Unlock instant, AI-driven research and patent intelligence for your innovation.

Polymer electrolyte membrane fuel cell light stack and manufacturing method thereof

An electrolyte membrane and fuel cell technology, applied in fuel cells, fuel cell additives, fuel cell components, etc., can solve complex metal bipolar plate processing technology, decreased stack volume power density, and uneven distribution of reaction gases and other issues, to achieve the effects of improving reliability and mass production efficiency, reducing volumetric power density, and low cost

Active Publication Date: 2016-05-11
浙江锋源氢能科技有限公司
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The fuel cell stacks constructed with metal bipolar plates in the above-mentioned patents all have the following problems: 1. The metal bipolar plates all have a multilayer flow field consisting of fuel flow field, oxidant flow field and cooling flow field, and the metal bipolar plate processing technology Complex and high cost; 2. There are ridges and flow grooves in the flow field composed of flow channels on the bipolar plate, and the reaction gas cannot be evenly distributed on the entire active area, resulting in low performance and short life of the fuel cell; 3. Has three layers The thickness of the metal bipolar plate in the flow field is large, resulting in a decrease in the volume power density of the stack; 4. The normal operation of the stack requires a water and heat management subsystem, and the power generation system is complicated, which results in a low specific power of the stack power generation system. Generating specific power is lower than 500W / kg

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polymer electrolyte membrane fuel cell light stack and manufacturing method thereof
  • Polymer electrolyte membrane fuel cell light stack and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 0.03mm thick titanium sheet is used and stamped into titanium corrugated sheet. The above-mentioned one piece of titanium corrugated plate and one piece of titanium thin plate are welded together. The surface is plated with TiN by PVD method to form a fuel cell metal bipolar plate. Two polytetrafluoro tubes are used as the fuel gas inlet and outlet distribution pipes. First, the two polytetrafluoro tubes are fixed vertically, and the two ends of the above-mentioned metal bipolar plate are punched and connected in series to the two polytetrafluoro tubes. Ripple side down. Then the membrane electrode is perforated at the corresponding positions at both ends and laminated on the flat surface of the metal bipolar plate, and holes are opened at the contact part of the anode of the membrane electrode and the fuel gas inlet and outlet distribution pipe for the fuel gas to enter and exit the anode cavity to participate in the electrochemical reaction. Glue dispensing technolo...

Embodiment 2

[0034] Using 0.3mm thick 316L stainless steel sheet, stamped into corrugated plate. The above-mentioned piece of stainless steel corrugated plate and a piece of titanium thin plate are welded together. The surface is plated with noble metal by electroless plating to form a fuel cell metal bipolar plate. Two aluminum tubes with surface insulation treatment are used as the fuel gas distribution pipes. First, the two aluminum tubes are fixed vertically, and the two ends of the above-mentioned metal bipolar plate are punched and connected in series to the two aluminum tubes, and the corrugated faces Down. Then the membrane electrode is perforated at the corresponding positions at both ends and laminated on the flat surface of the metal bipolar plate, and holes are opened at the contact part of the anode of the membrane electrode and the fuel gas inlet and outlet distribution pipe for the fuel gas to enter and exit the anode cavity to participate in the electrochemical reaction. ...

Embodiment 3

[0037] The 0.1mm thick 316L aluminum alloy sheet is punched into a corrugated plate. The above-mentioned one piece of aluminum alloy corrugated plate and one piece of aluminum alloy thin plate are bonded together. Surface CN treatment is carried out by ion implantation method to form fuel cell metal bipolar plate. Two titanium tubes with surface insulation treatment are used as the fuel gas distribution pipes. First, the two titanium tubes are fixed vertically, and the two ends of the above-mentioned metal bipolar plate are punched and connected in series to the two titanium tubes, and the corrugated faces Down. Then the membrane electrode is perforated at the corresponding positions at both ends and laminated on the flat surface of the metal bipolar plate, and holes are opened at the contact part of the anode of the membrane electrode and the fuel gas inlet and outlet distribution pipe for the fuel gas to enter and exit the anode cavity to participate in the electrochemical ...

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

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a light-weight electric pile of a polymer electrolyte membrane fuel battery and a manufacturing method of the light-weight electric pile in the technical field of the light-weight electric piles of metal bipolar plate fuel batteries. The light-weight electric pile of the polymer electrolyte membrane fuel battery comprises metal bipolar plates, membrane electrodes, a fuel gas inlet distribution pipe, a fuel gas outlet distribution pipe, a top end plate and a bottom end plate, wherein the membrane electrodes and the metal bipolar plates are superposed in sequence in a staggered manner and are connected in series together through the fuel gas inlet distribution pipe and the fuel gas outlet distribution pipe; fuel gas distribution is achieved by the distribution pipes, so that only one side of each metal bipolar plate is provided with an oxidant flow field, and a shared pipeline does not need to be constructed on the metal bipolar plates; the gas is uniformly distributed and is high in tightness; a metal bipolar plate processing technology is very simple and is low in cost.

Description

technical field [0001] The invention belongs to the technical field of metal bipolar plate fuel cell light stacks, in particular to a polymer electrolyte membrane fuel cell light stack and a manufacturing method thereof. Background technique [0002] Polymer electrolyte membrane fuel cells use polymer membranes as electrolytes. At present, the commonly used membranes are perfluorosulfonic acid membranes, and the fluorocarbon main chain has branches substituted by sulfonic acid groups. Compared with other liquid electrolyte fuel cells, polymer electrolyte membrane fuel cells use solid polymers as electrolytes, which avoids the operational complexity of liquid electrolytes, and can greatly reduce the thickness of the electrolyte, thereby increasing the energy density of the battery. [0003] The core component of a polymer electrolyte membrane fuel cell is called a membrane electrode assembly, including a proton exchange membrane, a cathode / anode catalyst layer, and a cathode / ...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/2465H01M8/2485H01M8/0258H01M8/1004H01M8/0206H01M8/2457
CPCH01M8/04201H01M8/1016H01M8/249H01M2008/1095Y02E60/50Y02P70/50
Inventor 王诚孙连国毛宗强
Owner 浙江锋源氢能科技有限公司