High temperature direct formate fuel cell with electricity and alkali salt co-production

A fuel cell and formate technology, which is applied in the direction of fuel cells, battery electrodes, circuits, etc., can solve the problems of increasing system complexity and input costs, poor thermal and chemical stability, and reducing the theoretical energy density of the system. Reduce activation loss and battery internal resistance, increase theoretical energy density, and facilitate promotion and application

Active Publication Date: 2017-07-21
XI AN JIAOTONG UNIV
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  • Abstract
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Benefits of technology

This patented technology solves problems associated with current batteries due to their limitations like lower capacity and high heat generation during operation caused by insufficient lithiation/deposition reactions on the surface layer of the negative plate. However, this new design allows for better efficiency and reduced costs while maintaining good electrical properties. Additionally, it simplifies the process of replacing existing materials and eliminating complicated processes. Overall, these technical improvements enhance the overall effectiveness and functionality of secondary cells.

Problems solved by technology

Technological Problem: Current methods for producing fuels from CO2/CO mixtures involve burning fossile materials like petroleum or charcoals at very high temperatures, leading to environmental concerns over potential negative effects related to climate change. Additionally, current method requires expensive equipment and complicated processes involving multiple steps, making this option less practically feasible than other options available today.

Method used

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  • High temperature direct formate fuel cell with electricity and alkali salt co-production
  • High temperature direct formate fuel cell with electricity and alkali salt co-production

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Embodiment Construction

[0018] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0019] see figure 1 , the present invention comprises an anode plate 6, a cathode plate 7 and a cation-exchange membrane 1 that separates it into an anode cavity and a cathode cavity for conducting sodium ions. Water, the oxidant uses pure oxygen or oxygen from the air, and the anode chamber side of the cation exchange membrane 1 that conducts sodium ions is provided with an anode catalytic layer 4 and an anode diffusion layer 2 in sequence from the inside to the outside, and the cation exchange membrane that conducts sodium ions The cathode chamber side of the membrane 1 is provided with a cathode catalytic layer 5 and a cathode diffusion layer 3 sequentially from the inside to the outside. The anode and cathode diffusion layers 2 and 3 use carbon paper with a microporous layer as a supporting material, and the catalyst The slurr

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Abstract

The invention discloses a high temperature direct formate fuel cell (Na-DFFC) with electricity and alkali salt co-production belonging to the field of fuel cells, including a non-platinum cathode and a non-platinum anode using polytetrafluoroethylene (PTFE) as a binder, and a cationic membrane of a sodium ion form. Compared with traditional formate fuel cells, additional electrolyte (such as sodium hydroxide) is not required to be added to the Na-DFFC anode, so that the energy density of the system is improved, and the design complexity and cost of the system are reduced. In addition, by replacing the traditional anionic membrane with the cationic membrane of a sodium ion form, the shortcomings of poor thermal stability and poor chemical stability of the anionic membrane are overcome. At the same time, by replacing the traditional ion exchange resin binder with the polytetrafluoroethylene (PTFE), the fuel cell compared with the traditional fuel cell is more resistant to high temperature. In addition, important chemical raw materials including sodium hydroxide and sodium carbonate are produced along with electricity outputting by the Na-DFFC, that is, forming the so-called electricity and alkali salt co-production, so that the range of applications is very wide.

Description

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Claims

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Application Information

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Owner XI AN JIAOTONG UNIV
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