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Non-fluid electrolyte cell with coiled or folded electrode

An electrolyte and fluid technology, applied in the field of non-fluid electrolyte batteries, can solve the problems of heavy area of ​​the guide plate, low utilization rate of the effective guide area, low utilization rate of the effective area of ​​the electrode, etc., and achieve the effect of improving the power density

Inactive Publication Date: 2004-02-25
上海卓忆科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this planar fuel cell are;
[0003] (1) The utilization rate of the effective area of ​​the electrode is low, generally <80%;
[0004] (2) The diversion plate is heavy or has a large area, and the utilization rate of the effective diversion area is also low, generally less than 80%.

Method used

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  • Non-fluid electrolyte cell with coiled or folded electrode
  • Non-fluid electrolyte cell with coiled or folded electrode
  • Non-fluid electrolyte cell with coiled or folded electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as image 3 Shown is a multi-layer roll-type three-in-one electrode and the fuel cell formed therefrom. This roll-type fuel cell has a high power density. image 3 The fuel cell membrane electrode 1 of the middle drum type is composed of an ion exchange membrane 11, and the noble metal catalysts 12 such as platinum are coated on both sides of the membrane, and the membrane electrode 1 is separated by a layer of air-tight interlayer 2 (black solid line in the figure). In this way, both sides of the membrane electrode 1 can take fuel hydrogen H respectively. 2 or oxidizing agent O 2 (or air), and can be filled with some gas diffusion carriers 3, such as flexible wire mesh or carbon fiber materials, such as carbon cloth, so that there is no need for a guide plate, and the current can flow from the gas diffusion carriers on both sides of the membrane electrode 1 3 Connect the corresponding metal leads (not shown) to lead out. In order to adapt the roll-type fuel cel...

Embodiment 2

[0016] Such as Figure 4 As shown, it is a fuel cell composed of multilayer roll-type electrodes, and the difference from Example 1 is that Figure 4 There are two layers of membrane electrodes 1 between the roll-type interlayer 2 and the interlayer 2 (black solid line), and each layer of membrane electrode 1 is composed of an ion exchange membrane 11, and the two sides of the membrane are coated with platinum and other precious metal catalysts 12, And the middle of these two layers of membrane electrodes 1 is the fuel hydrogen H 2 (Oxidizing agents such as oxygen or air can also be used). The outer side of the two-layer membrane electrode 1 is currently carrying an oxidizing agent such as oxygen O 2 (Hydrogen can also be used). Among them, between the membrane electrode 1 and the membrane electrode 1, and between the membrane electrode 1 and the interlayer 2, some gas diffusion carriers 3 can be filled, such as flexible wire mesh or carbon fiber materials, such as carbon c...

Embodiment 3

[0018] Also can adopt the fuel cell membrane electrode 1 of one deck roll type to be made of ion-exchange membrane 11, the precious metal catalyst 12 such as coating platinum on both sides of membrane, membrane electrode 1 both sides are respectively provided with one deck impermeable interlayer 2 (black solid line in the figure ), so that both sides of the membrane electrode 1 can take fuel hydrogen H 2 or oxidizing agent O 2 (or air), and can be filled with some gas diffusion carriers 3, such as flexible wire mesh or carbon fiber material, such as carbon cloth. In this way, there is no need for a guide plate, and the current can be drawn from the gas diffusion carrier 3 on both sides of the membrane electrode 1 to connect to the corresponding metal leads (not shown in the figure). In order to adapt the reel-type fuel cell to the needs of practical applications, several reel-type fuel cells can be connected in series or in parallel in various ways to achieve the current and ...

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Abstract

The non-fluid electrolyte cell with coiled or folded electrode relates to a high-density fuel cell. Two sides of the ion-exchange membrane are equipped with airproof isolation layer, gas diffusion carrier and metal lead. The membrane electrode and airproof isolation layer are superimposed and coiled into one layer or several layer spool form, the described gas diffusion carrier is positioned at two sides of the membrane electrode, and the metal lead can be placed on the metal diffusion carrier, so that a spool-type ion-exchange membrane fuel cell with high power density can be obtained.

Description

technical field [0001] The present invention relates to a battery, in particular a battery with a non-fluid electrolyte having wound or folded electrodes. Background technique [0002] The ionic membrane of the ion exchange membrane fuel cell in the prior art is between two conductive plates, and the surface of each conductive plate in contact with the membrane electrode forms at least one diversion groove by die-casting, stamping or mechanical milling . The diversion channels and diversion grooves on the conductive electrode plate guide the fuel and oxidant into the anode region and the cathode region on both sides of the membrane electrode respectively. In an ion-exchange membrane fuel cell, there is only one membrane electrode, and the two sides of the membrane electrode are the guide plate of the anode fuel and the guide plate of the cathode oxidant respectively. These guide plates not only serve as current collector plates, but also as mechanical supports on both side...

Claims

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Application Information

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IPC IPC(8): H01M8/1004H01M8/2457
CPCY02E60/521Y02E60/50
Inventor 章皓
Owner 上海卓忆科技发展有限公司