| A fuel cell is an energy conversion device with a high efficiency and a low pollution. Different from the traditional cells that can only reserve energy, it generates electricity from fuels such as hydrogen, natural gas and other hydrocarbons. The fuel cell is also called a cell because it is composed of electrolyte, anode and cathode, which are the same for a normal cell. The electrolyte is sandwiched by the two electrodes. The fuel cell is also different from the traditional power generation methods. Because it is not limited by the Carnot cycle, fuel cell has advantages of higher energy conversion efficiency and lower polluted gases emission over the traditional generator. Recently with the natural resource exhaustion and environment deterioration, developing efficient and environmental friendly energy techniques is necessary. Since fuel cell just matches such requirements, it attracts the interests all over the world.As the fourth generation fuel cell, a clean energy conversion device,SOFC (Solid Oxide Fuel Cell) has many outstanding advantages, which is better than other fuel cells. Firstly, equipped with all solid components, it eliminates the problems that liquid electrolyte fuel cell faces, such as corrosion and leakage of liquid electrolytes. Secondly, operating at high temperatures, its electrode reaction is so fast that it is unnecessary to use noble metals as electrodes. Thus the cost of the cells can be minimized. At the same time, the high quality heat it emits can be fully used. The overall energy conversion efficiency of the thermal-electric system can be added up to 80%. The most outstanding advantage of SOFC is that it uses a large scale of fuels, from the hydrogen, carbon monoxide to the natural gas or even other combustive gases. Currently the main difficulty that the SOFC faces is the problem caused by high temperature and the ceramic components'match..Currently, ABO3-type perovskite structure of rare earth oxide is one of the hotspots. Which, La0.75Sr0.25Cr0.5Mn0.5O3-δ, better chemical stability and thermal stability, may be used as fuel cell anode catalyst material.La0.75Sr0.25Cr0.5Mn0.5O3-δ(LSCM) powders commonly used solid state reaction, solid state reaction method though simple, but the preparation of coarse particle size, active poor, the sintering temperature required high. In this paper, using wet chemical methods─sol - gel method (sol-gel method) Preparation of powder. Sr, Mn doped LaCrO3 as solid oxide anode material has good chemical stability. In the redox cycle, its structural stability, but La0.75Sr0.25Cr0.5Mn0.5O3-δlow conductivity under reducing atmosphere.This paper discusses the CuO the LSCM anode composite material properties change with the Cu content of the anode performance. And the absence of the LSCM Preparation A bit of absence of content on the anode performance.(1) by the sol - gel La0.75Sr0.25Cr0.5Mn0.5O3-δand CuO powder by LSCM-Cu composite anode materials in the air, 1000℃sintering samples. LSCM-Cu material samples with Cu increased, the conductivity value is also growing. Since Cu has a high electronic conductivity, through the addition of Cu increases the overall conductivity of composite materials. Seen from the XRD patterns, LSCM and Cu have good chemical compatibility. Seen from the blitz up test structure, Cu content decreased the coefficient of thermal expansion of composite materials. LSCM-Cu30 get the best of this series power density, at 800℃, LSCM-Cu30 power density of 194.74 mW ? cm-2, the conductivity 173.8623 S.cm-1.(2) by the sol - gel method (La0.75Sr0.25) 1-xCr0.5Mn0.5O3-δpowder, when x = 0.03 pm, LSCM3 the absence of the series won the best conductivity under reducing atmosphere , and the battery test to get a good power density. With the absence of conductivity River Power density volume showed a trend to increase and then decrease. One LSCM3 at 850℃, the power density of 246.35 mW ? cm-2, the conductivity 10.5222 S.cm-1. These results suggest that LSCM material is worthy of further development of anode materials.
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