A direct methanol fuel cell

A methanol fuel cell, direct technology, applied in fuel cells, battery electrodes, circuits, etc., can solve problems such as easy oxidation, affecting catalyst stability, battery performance, etc., to improve performance, improve anti-CO poisoning ability, and improve catalytic oxidation performance. Effect
CN107403940BActive Publication Date: 2019-09-17义乌市谊诚信息科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
义乌市谊诚信息科技有限公司
Publication Date
2019-09-17

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Abstract

The invention relates to the field of fuel cells, in particular to a novel DMFC (direct methanol fuel cell). The battery comprises a cell casing, a membrane electrode and an anode tube from outside to inside sequentially, wherein an electrolyte chamber is formed in the anode tube, an air chamber is formed between the casing and the membrane electrode, and a cathode output end and an anode output end are arranged at the cathode end and the anode end of the cell and connected with the cell casing through weld points respectively; the membrane electrode covers the surface of the anode tube; a feeding hole is formed in the electrolyte chamber of the casing, an air circulation hole is formed in the air chamber of the casing, a water discharge hole is formed in the bottom of the air chamber of the casing, and a CO2 discharge hole is formed in the bottom of an anode diffusion layer of the casing. The manufacturing cost of the cell is reduced, the structure is simplified, the catalytic performance of the catalyst for methanol is high, toxin resistance is high, and the cell performance is improved.
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Description

technical field

[0001] The invention relates to the field of fuel cells, in particular to a direct methanol fuel cell. Background technique

[0002] Direct Methanol Fuel Cell (DMFC) has the advantages of low energy consumption, high energy density, abundant sources of methanol, low price, simple system, convenient operation, low noise, etc. Promising chemical power sources have attracted widespread attention. One of the most critical materials of DMFC is the electrode catalyst, which directly affects the performance, stability, service life and manufacturing cost of the battery. The noble metal Pt has excellent catalytic performance at low temperature (less than 80°C). At present, Pt is the main component of DMFC electrode catalysts, and the PtRu catalyst has stronger CO poisoning resistance and higher catalytic activity than pure Pt. It is considered to be the best catalyst for DMFC at present, but due to its high price and defects such as easy solubility of Ru, the utili...

Claims

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