燃料电池

The results indicated that the proton transport number and fuel cell performance of BaCe_(0.8)Y_(0.2)O_(3-α) synthesized by sol-gel method could be obviously affected by sintering temperature.

以烧结体样品为固体电解质、多孔性铂为电极，组成氢及氧浓差电池、氢-空气燃料电池，测定了BaCe_(0.8)Y_(0.2)O_(3-α)烧结体的质子和氧离子迁移数以及燃料电池的性能，并与高温固相反应法合成的样品进行了比较。

An upper base (1) of the reaction device is coaxially arranged into a water cooling sleeve (2); the connection of the upper base and the water cooling sleeve is welded and sealed to form a water cooling chamber; an anode current collecting Pt net (12) is used for collecting current from the anode of a button-typed solid oxide fuel battery (16); two ends of an anode current collecting Pt wire (15) are respectively used as an reference electrode and a testing electrode; the temperature measuring point of a temperature measuring thermal-couple (17) and the button-typed solid oxide fuel battery (16) keep in the same height; the bottom of an anode chamber pipe (6) is inserted into the upper hole of a lower base (43); the lower surface of a quartz sand sintering plate (42) is provided with a carbon fuel thermal-couple (56); all pipes and sealing heads (46) are hermetically connected with each other.

该反应装置上底座(1)同轴放入上水冷套(2)中并对连接处焊接密封形成水冷腔体；阳极集流铂网(12)用于从纽扣式固体氧化物燃料电池(16)阳极上收集电流，阳极集流铂丝(15)两头分别用作参比电极和测试电极；测温热电偶(17)测温点与纽扣固体氧化物燃料电池(16)保持同一高度；阳极腔体管(6)底部插入下底座(43)上部孔中；石英砂烧结板(42)下面布置碳燃料热电偶(56)；所有管件与封头(46)连接密封。

The anode catalyst for direct methanol fuel cell is Pt-W-Sn/C, and it is prepared through dispersing carbon black in distilled water, adding H2PtCl6, tungstate and stannate, stirring to make the metal salt and H2PtCl6 adsorbed fully; dropping reductant to reduce and deposite until complete reaction; washing with distilled water, filtering and drying to obtain black C carried sanitary Pt-W-Sn catalyst. The catalyst has excellent methanol catalyzing activity and low cost, and its use can lower the cost of direct methanol fuel cell greatly and raise the performance/cost ratio of the cell.

一种直接甲醇燃料电池阳极催化剂是Pt-W-Sn/C；其制备方法是将碳黑分散在蒸馏水中，然后加入H2PtCl6、钨酸盐和锡盐，搅拌使得金属盐与H2PtCl6被充分吸附；逐滴加入还原剂使之还原沉积，待反应完全后，用蒸馏水洗涤，过滤，然后于干燥箱中干燥，便得到黑色的C负载Pt-W-Sn三元催化剂；该催化剂具有很好的甲醇催化活性，价格低廉，可以大大降低直接甲醇燃料电池的成本，提高电池的性能价格比和市场竞争能力。

Three kinds of BCRC No.51534, 10322 and 10675 would be selected and acted as an experimental sample of Escherichia coli. Results shows that Escherichia coli of No.51534 will appear better performance because the maximum of open circuit voltage, closed current and power density are 1.01V, 22mA and 1342mW/m2, respectively. Concerning the effect of culture time with respect to different phase type on the electricity performance of MFCs, the time points on the intersection between lag phase and logarithmic phase, the middle of point of stationary phase for growth curve of Escherichia coli would appear a good performance of MFCs. In addition, the BCRC No. 51534 Escherichia coli possessing a better performance of MFCs than others would be suggested and applied to further studying. Comparison with the performance of MFCs with respect to electron mediator under different mole number, result shows that electron mediator of methylene blue with 4.63mM would appear a better electricity performance of MFCs than others. Concerning the different material of proton exchange membrane with PTFE-Nafion, Nafion 211, 212 and 117 with respect to the performance of MFCs, result shows that the Nafion 117 applied in MFCs will have a better performance of MFCs than other cases. Finally, the effect of molar concentration on the performance of MFCs would be expected at the studied cases of 0.4M, 0.2M, 0.1M and 0.05M respectively for cathode oxidant, result shows that a good performance of MFCs will happen at the condition of 0.2M. Those observations will be useful to improvement of MFCs in the further study.

於上述电池系统条件下，进行大肠杆菌生长曲线、电子传递介质、质子交换膜、电极与阴极氧化剂对电池电性效能分析；选择编号10322、10675与51534之大肠杆菌为实验菌株，依定量培养之生长曲线取出代表不同时生长特性时期的培养时间，利用亚甲基蓝作为电子传递介质进行实验分析从所测得的电量进行分析，以编号51534之大肠杆菌的微生物燃料电池有最大的开路电压为1.01V及最大闭路电流为22mA；当极化曲线中电压为0.47V、电流为11.4 mA时有最大的功率密度为1342 mW/m2；加以负载有平均工作功率密度294 mW/m2；从生长曲线与电性效能来分析，得知生长曲线的迟滞期与对数期的转变点与静止期的中间点有最佳电性效能表现；对於加入不同莫耳数之电子传递介质methylene blue、neutral red与thionine之电池效能表现，则以加入4.63mM methylene blue电子传递介质的电池有较佳平均功率密度230 mW/m2；另对於质子交换膜PTFE-Nafion、Nafion 211、Nafion 212与Nafion 117之电池效能表现，以Nafion 117质子交换膜的电池有较佳平均功率密度340 mW/m2；对於分析加入不同莫耳数浓度0.4M、0.2M、0.1M与0.05M的阴极氧化剂之电池效能，则以0.2M的阴极氧化剂的电池可得到较佳平均功率密度429 mW/m2。

Also the fuel battery not necessary for power source, charging by voltage stabilizer, fully get rid of charge power burden and limit problem, it's very convenient for customers.

不过，一般来说，燃料电池的能量密度理论上可为锂离子电池的五至十倍以上，目前技术上已可达三至五倍；此外，燃料电池无须电源、稳压器充电，完全摆脱了充电的负担与限制，为使用者提供了极大的方便。

There are several references has been reported to reveal that adding phosphomolybdic acid hydrate PMo12 in the electrode of proton exchange membrane fuel cells and direct methanol fuel cell could promote performance.

目前已有相关研究发表将磷钼酸触媒(PMo12)应用於质子交换膜燃料电池以及直接甲醇燃料电池之电极触媒以提升电池效能。

First, a full three-dimensional numerical model is developed, which considering not only the rib resistance to the species, but both the single- and two-phase flow and transport in the gas channels and diffusers at both the anode and cathode sides of PEM fuel cell. Two sets of boundary conditions, one for a conventional flow field and the other for an interdigitated one, are presented. A detailed discussion of the numerical techniques for the PEM fuel cell model is given with a flow diagram to provide an overview of the solution procedure using FORTRAN language.

该模型考虑了双极板上流道间的筋部对于反应气体传递阻力以及电流密度分布的影响，从而使模型具有三维特性；建模过程中进一步考虑了流道和扩散层中可能存在的液态水，从而将现有的单相流动模型拓展成为两相流动模型，因此，该模型可以同时模拟电池内部阴极、阳极侧流道和扩散层中两相流动的发生和分布情况；分别给出了平行流场燃料电池和交指型燃料电池的边界条件；详细讨论的三维模型的耦合求解算法和技巧；用实验数据验证的该模型的准确性。

AEM DMFC is benefited from the alkaline media and the reaction activities of cathode and anode are greatly improved.

引言直接甲醇燃料电池是以离子交换膜为电解质、甲醇为阳极燃料、空气为氧化剂的燃料电池。

A fuel cell tester, which is provided with a plurality of channels and is capable of testing mono-cells or electric piles of a plurality of fuel cells simultaneously, is composed of a flow control unit, a humidifying unit, a signal acquisition unit, a temperature control unit and a discharging unit, etc.

一种燃料电池测试仪，其设置有多个通道，可同时测试多个燃料电池单电池或电堆，由流量控制单元、增湿单元、信号采集单元、温控单元、放电单元等结构单元组成。

At the same time, it will be encouraged to use the automobiles powered by cleaner fuels, fuel cell vehicles, electricity-powered vehicles and other types of lower emission vehicle .

鼓励使用清洁燃料车、燃料电池车、电动汽车及达到更高排放标准的车辆。燃料电池汽车和电动汽车。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。