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Portable fuel cell system

A fuel cell system and portable technology, applied in the direction of fuel cells, fuel cell additives, fuel cell grouping, etc., can solve problems such as inconvenient use and portability, complicated process, uncontrollable hydrogen production speed, etc.

Inactive Publication Date: 2008-12-24
HANERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of complex process, uncontrollable hydrogen production speed, and inconvenient use and carrying when using these traditional hydrogen sources in fuel cells, the present invention uses hydrogen generated by the hydrolysis reaction of sodium borohydride as the hydrogen source to supply ion exchange membrane fuel cells The stack is used as fuel, and the ion exchange membrane fuel cell stack generates electricity to generate electricity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] When using proton exchange membrane fuel cells to generate electricity (such as Figure 5 shown),

[0052] 1. Establish a standby state

[0053] (1) In the initial state, V1-V5 are in the closed state, and the cover of the fuel inlet 8 is closed.

[0054] (2) Open the lid of the fuel inlet and inject sodium borohydride, sodium hydroxide and water. The weight percentage of each component is 50% sodium borohydride, 15% sodium hydroxide, and the rest is pure water. Then screw on the cap. The feed port is made of 316 stainless steel corrosion-resistant material and sealed with a tapered thread.

[0055] (3) Open V1-V4 so that the fuel enters the hydrogen generating reactor by static pressure, and then close V2-V4 in turn. Thus, the initial working state of the fuel cell system is established.

[0056] 2. Operating status

[0057] (1) Turn on V3 to introduce hydrogen into the fuel cell.

[0058] (2) Open V1 and V2, so that the fuel enters the hydrogen generating react...

Embodiment 2

[0069] When anion exchange membrane fuel cells are used to generate electricity (such as Image 6 shown),

[0070] 1. Establish a standby state

[0071] (1) Initial state: V1-V5 are in the closed state, and the fuel inlet cover is closed.

[0072] (2) Open the lid of the fuel inlet and inject sodium borohydride, sodium hydroxide and water. The weight percentages of each component are 35% sodium borohydride, 15% sodium hydroxide, and the rest are pure water. Then screw on the cap. The feed port is made of 316 stainless steel corrosion-resistant material and sealed with a tapered thread.

[0073] (3) Open V1-V4 so that the fuel enters the hydrogen generating reactor by static pressure, and then close V2-V4 in turn. Thus, the initial working state of the fuel cell system is established.

[0074] 2. Operating status: (1) Turn on V3 to introduce hydrogen into the fuel cell.

[0075] (2) Open V1 and V2, so that the fuel enters the hydrogen generating reactor by pressure differ...

Embodiment 3

[0084] Embodiment 3: basically the same as Example 2

[0085] The weight percent of each component of the fuel is 25% of sodium borohydride, 10% of sodium hydroxide, and the rest is pure water.

[0086] In this example invention, the fuel tank is made of nickel-plated stainless steel plate material, and the specific structure is as follows figure 1 As shown, there are feed inlet 8, waste discharge outlet 5, hydrogen outlet 7, hydrogen generation product inlet 1 and sodium borohydride solution outlet 6 leading to the reactor. A gas-liquid separation device is provided at the inlet of the hydrogen generation product, consisting of a baffle 3 and a porous material. The baffle is made of fluorine plastic coated stainless steel plate. The fuel tank and the hydrogen generating reactor are connected by two one-way needle valves. 2 is a porous material, and the porous material is foamed nickel.

[0087] In the invention of this example, the hydrogen generation reactor exhausts air...

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Abstract

The invention discloses a portable fuel battery system, aims to provide a fuel battery system for a portable mobile power supply to realize a requirement-based power supply mode. The fuel battery system comprises the following components: a sodium borohydride hydrogen generating system, a DC voltage stabilizer, a DC to AC inverter, an ion exchange membrane fuel battery pile and a blower as well as switches, pipelines and valves. The sodium borohydride hydrogen generating system includes a fuel tank, a hydrogen generation reactor, and a hydrogen separator. The ion exchange membrane fuel battery pile can adopt a proton exchange membrane or an anion exchange membrane (taking hydroxyl ions as the conductive ions) as the ion conductor, and can also adopt a composite ion exchange membrane formed by the proton exchange membrane and the anion exchange membrane as the ion conductor. The fuel battery adopts the hydrogen generated from the hydrolytic reaction of sodium borohydride as the hydrogen source and provides the fuel for the ion exchange membrane fuel cell pile which generates power.

Description

technical field [0001] The present invention relates to portable fuel cell systems. In particular, it relates to hydrogen supply systems for fuel cells. Background technique [0002] Fuel Cell (FC) is a power generation device that can directly convert chemical energy stored in fuel and oxidant into electrical energy with high efficiency (50-80%) and pollution-free at room temperature (0-80°C). , can be seen as a prime mover without a combustion process. The principle of FC power generation is the same as that of chemical power sources. The electrodes provide a place for electron transfer. The reaction of the anode catalyzing the fuel is like the oxidation process of hydrogen, and the reaction of the cathode catalyzing the oxidant is like the reduction process of oxygen; the conductive ions are in the electrolyte that separates the anode and cathode Migration, electrons do work through an external circuit and form an electrical circuit. [0003] There are many types of fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/00H01M8/24H01M8/04H01M8/06H01M8/10H01M8/04089H01M8/0656H01M8/1007H01M8/2457
CPCY02E60/50Y02P70/50
Inventor 肖钢侯晓峰李洲鹏刘宾虹
Owner HANERGY TECH
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