直接碳燃料电池（DCFC）具有能量转换效率高、污染物排放少、燃料利用率高等优点，是一种极具发展前景的高效发电技术。固体氧化物DCFC阳极引入熔融碳酸盐后构成杂化电解质DCFC，燃料电池性能大幅提高，但碳酸盐的作用机制尚不明确。为此，本项目拟开展如下研究：基于Ni-SDC(Ce0.8Sm0.2O1.9)阳极构建杂化电解质DCFC，研究碳的电化学氧化方式和燃料层温度分布规律，建立阳极活化极化数学模型；研究O2-传导中SDC相与碳酸盐相的相互作用，建立阳极欧姆极化计算模型；通过竹炭接触角调控、碳酸盐组分优化等实验解析熔融碳酸盐中竹炭润湿特性的控制机制；以改性竹炭为燃料考察DCFC实际性能，与计算结果对比分析阐明杂化电解质DCFC阳极熔融碳酸盐的作用机制。本研究可为杂化电解质DCFC性能优化提供理论基础，为能源高效转化新技术开发提供借鉴，具有重要理论与实践意义。

Direct carbon fuel cell is considered to be a very promising power generation technology due to its high energy conversion efficiency, less emission and high fuel utilization. Hybrid electrolyte direct carbon fuel cell is formed by adding molten carbonate into solid oxide fuel cell anode, and its electrochemical performance can be enormously improved. However, how does the molten carbonate work is still unclear..Therefore, research thoughts are put forward as follows: construct a hybrid electrolyte DCFC with a Ni-SDC (Ce0.8Sm0.2O1.9) anode; built the anodic activation polarization mathematic model, combining with electrochemical oxidative behavior of carbon and temperature distribution in the fuel bed; understand the interaction on O2- conduction between SDC phase and molten carbonate phase; built the anodic ohmic polarization computation model; summarize the control mechanism of bamboo charcoal wetting properties according to the experimental studies on bamboo charcoal contact angle regulation and carbonate component majorization; study the actual performance of the composite electrolyte DCFC fed with bamboo charcoal with high wetting property; finally clarify the functional mechanism of molten carbonate in a hybrid electrolyte DCFC based on the contrastive analysis between the experimental results and calculation results. The research could provide the theoretical basis for hybrid electrolyte DCFC anode performance optimization and the reference for the development of the clean and efficient energy conversion technologies. Therefore, the project research has great academic meaning.