Electrode without contact resistance

A non-contact, electrode technology, applied in the direction of electrodes, electrode shape/type, electrolysis process, etc., can solve the problems of increasing the contact resistance value between electrodes, large gas production and power consumption, and increasing energy consumption, so as to eliminate contact resistance , reduce power consumption and improve assembly efficiency

Active Publication Date: 2016-11-23
考克利尔竞立(苏州)氢能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The theoretical decomposition voltage of water is 1.23V, and the electrolysis process must be carried out under the condition higher than the decomposition voltage. In order to meet the requirements of gas production, it is necessary to maintain the rated current density, and to overcome the influence of the resistance of the electrolytic cell, a certain voltage must be applied, so The electric energy consumption per unit gas production of the electrolyzer is relatively large
[0004] There is contact resistance between the electrodes. In the prior art, the resistance value of the contact resistance is often reduced by changing the electrode surface material. However, during use, due to impurities in the electrolyte, the electrode surface material will be affected by impurities and lose its value. The original effect, on the contrary, greatly increases the resistance value of the contact resistance between the electrodes and increases the energy consumption

Method used

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Examples

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Embodiment 1

[0021] A kind of non-contact resistance electrode of present embodiment, non-contact resistance electrode comprises electrode plate assembly, steel wire mesh 3-1 and nickel-nickel alloy electrode mesh 4; Electrode plate assembly comprises carbon steel electrode frame 1 and is welded on The cold-rolled deep-drawn steel plate electrode plate 2 in the carbon steel electrode frame 1, the carbon steel electrode frame 1 is provided with an annular boss 5 on both sides, and the nickel-nickel alloy electrode mesh 4 is welded on the annular boss 5, and the steel metal The wire mesh 3-1 is welded between the nickel-nickel alloy electrode mesh 4 and the cold-rolled deep-drawn steel plate electrode plate 2.

[0022] The surface of the nickel-nickel alloy electrode mesh 4 in this embodiment is coated with a nickel-aluminum alloy active coating.

Embodiment 2

[0024] A kind of non-contact resistance electrode of present embodiment, non-contact resistance electrode comprises electrode plate assembly and nickel-nickel alloy electrode network 4; Rolled deep-drawn steel plate electrode plate 2, carbon steel electrode frame 1 is provided with annular bosses 5 on both sides, and nickel-nickel alloy electrode mesh 4 is welded on the annular boss 5, cold-rolled deep-drawn steel plate electrode plate 2 has several The protrusions 3-2 punched into an array are used as support bodies.

[0025] The surface of the nickel-nickel alloy electrode mesh 4 in this embodiment is coated with a nickel-aluminum alloy active coating.

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Abstract

The invention relates to an electrode without contact resistance, and belongs to the technical field of water electrolysis hydrogen production. The electrode without contact resistance comprises an electrode plate assembly, an electrode supporting body and an electrode net. The electrode plate assembly comprises a metal electrode frame and a main electrode plate welded into the metal electrode frame. Annular bosses are arranged on the two sides of the metal electrode frame, and the electrode net is welded to the annular bosses. The electrode supporting body is welded between the electrode net and the main electrode plate. The integrated welding manner is adopted in the electrode without contact resistance, the contact resistance between electrodes is eliminated, and the voltage needed by electrolysis is reduced.

Description

technical field [0001] The invention relates to a non-contact resistance electrode of a water electrolyzer, belonging to the technical field of hydrogen production by water electrolysis. Background technique [0002] A typical water electrolysis hydrogen production electrolyzer is composed of several electrolytic chambers connected in series, which operate under high current and low voltage conditions. Electrodes are the basic components of the electrolytic chamber. The electrode is composed of an electrode plate, a support body, and an electrode net, or an electrode plate and an electrode net with a supporting structure. When the electrodes are fed with direct current for electrolysis, the conduction of current between these parts is in the form of contact conduction, so the resulting contact resistance is unavoidable. [0003] The water electrolyzer is a load body with a certain resistance value, and its resistance value is the sum of electrolyte resistance, bubble resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/04C25B11/02C25B1/04
CPCY02E60/36
Inventor 宋军捷李锦冠孙健康石勇
Owner 考克利尔竞立(苏州)氢能科技有限公司
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