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Oxygen Regulated Fuel Cell

A fuel cell membrane and oxygen-limiting technology, which is applied in fuel cells, fuel cell additives, portable system fuel cells, etc., can solve the problems of negative impact of generator energy density, increase in thickness and operating temperature, etc.

Active Publication Date: 2022-05-27
INTELLIGENT ENERGY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this membrane-based water regulation approach is suitable for relatively low-power-density fuel cell-based generators, it tends to employ tortuous water-vapour diffusion paths, resulting in Increases the thickness and operating temperature significantly at higher power levels, negatively impacting the energy density of the generator

Method used

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  • Oxygen Regulated Fuel Cell
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] 1. A device comprising:

[0042] a vessel having a top plate with an array of oxygen-limited pinholes and a chamber containing a chemical hydride fuel;

[0043] a fuel cell proton exchange membrane electrode assembly supported within the vessel between the top plate and the chamber;

[0044] a first gas diffusion layer supported between the fuel cell proton exchange membrane electrode assembly and the top plate; and

[0045] A second gas diffusion layer supported between the fuel cell proton exchange membrane electrode assembly and the chamber.

[0046] 2. An apparatus as in embodiment 1, wherein the size of the oxygen-limiting pinhole array is adjusted to limit the supply of oxygen to the cathode of the fuel cell proton exchange membrane electrode assembly.

[0047] 3. An apparatus as in embodiment 2, wherein the oxygen-limiting pinhole has a size corresponding to the average power of the selected load.

[0048] 4. An apparatus as in embodiment 3, wherein the oxygen...

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Abstract

The present invention relates to oxygen regulated fuel cells. An apparatus comprising: a container having a top plate containing an array of oxygen-limiting pinholes and a chamber containing a chemical hydride fuel; a fuel cell proton exchange membrane electrode assembly supported within the container between the top plate and the chamber; first— A gas diffusion layer supported between the fuel cell PEMEA and the top plate; and a second gas diffusion layer supported between the fuel cell PEMEA and the chamber.

Description

technical field [0001] The present invention relates to embodiments of oxygen regulated fuel cells and related methods. Background technique [0002] Batteries currently used in portable electronic devices, such as handheld mobile devices, need to be charged fairly frequently. As the functionality of such devices increases, there is an increased demand for power. The mobility required for electronic devices creates space constraints that further increase the demands on battery performance. The energy density of existing batteries is showing insufficient to keep pace with the power demands of portable electronic devices. [0003] Micro fuel cells can utilize water vapor recovered from hydrogen / air proton electron membrane fuel cells, react with water with fuels such as chemical hydrides, and generate hydrogen through a hydrolysis reaction. A mechanism can be used to regulate the hydrogen production rate by regulating the water vapor provided to the fuel. Based on the pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04089H01M8/0606
CPCH01M8/04097H01M8/0606C01B3/065H01M2008/1095H01M8/1007H01M8/04089H01M8/065H01M8/1004H01M8/0687H01M8/04201H01M2250/30Y02B90/10Y02E60/36Y02E60/50H01M8/04104
Inventor S·J·埃克霍夫J·M·克莱因J·维贝西克
Owner INTELLIGENT ENERGY LTD