摘要:
The invention relates to a cathode material, particularly for use in a high-temperature fuel cell, comprising substoichiometric Ln1-x-yMyFe1-zCzO3-δ, with 0.02≦×x≦0.05, 0.1≦y≦0.6, 0.1≦z≦0.3, 0≦δ≦0.25 and with Ln=lanthanides, M=strontium or calcium and C=cobalt or copper. By using a particular production method, in which this cathode material having a specified grain size is used, and in which a (Ce, Gd)O2-δ-intermediate layer is advantageously formed between the cathode and electrolyte, a cathode is obtained that, when used in a high-temperature fuel cell, can achieve a power greater than 1 W/cm2 already at 750° C. and a cell voltage of 0.7 V.
摘要翻译:本发明涉及一种特别用于高温燃料电池的阴极材料,其包括亚化学计量的Ln 1-xy M 1 Fe 1-z, 其中0.02 <= xx <=0.05,0.1≤y≤0.6,0.1≤z≤0.3,0.0, =Δ<= 0.25,Ln =镧系元素,M =锶或钙,C =钴或铜。 通过使用特定的制造方法,其中使用具有特定晶粒尺寸的这种阴极材料,并且其中(Ce,Gd)O 2-δ-中间层有利地形成在阴极和 电解质,得到阴极,当用于高温燃料电池时,可以实现大于1W / cm 2的功率已经在750℃,电池电压为0.7V。
摘要:
A fuel cell system (1) having a cell stack (2) for the carrying out of electrochemical reactions is provided which is provided with inlets (3a, 3b) for an oxidant (5) and for fuel gas (6) and with outlets (4a, 4b) for exhaust gases (7a, 7b). The fuel cell system (1) additionally includes an apparatus (10) having a gas-permeable structure which contains a substance which reacts with gaseous chromium species, wherein the apparatus is in communication with at least one of the outlets to direct exhaust gases through the apparatus and to separate chromium species which are carried along by the exhaust gases.
摘要:
An adjusting device for a cable of a hand-brake. When the hand-brake is disengaged, a tractive element configured as a threaded spindle that can be attached to the cable can be tightened on a spindle nut that surrounds the threaded spindle in relation to a housing by means of the pre-tensioning of a spring. The adjusting device permits a simple, continuous adjustment of a cable. The spring is configured as a constant-force spring, which engages the spindle nut and a supply roll that has a rotational axis parallel to the spindle nut and elements are provided for retaining the tractive element in position relative to the housing when the hand-brake is engaged.
摘要:
A fuel cell system (1) having a cell stack (2) for the carrying out of electrochemical reactions is provided which is provided with inlets (3a, 3b) for an oxidant (5) and for fuel gas (6) and with outlets (4a, 4b) for exhaust gases (7a, 7b). The fuel cell system (1) additionally includes an apparatus (10) having a gas-permeable structure which contains a substance which reacts with gaseous chromium species, wherein the apparatus is in communication with at least one of the outlets to direct exhaust gases through the apparatus and to separate chromium species which are carried along by the exhaust gases.