Batteries can be recharged in the same way that a hydrogen bottle can be refilled, but battery capacity decreases during many recharge cycles. A hydrogen container and a fuel cell, on the other hand, do not degrade over time. Fuel cells have several advantages over conventional combustion-based technologies currently used in many power plants and vehicles. Fuel cells can operate more efficiently than combustion engines and can convert chemical fuel energy directly into electrical energy with efficiencies that can exceed 60%.
Fuel cells have lower or zero emissions compared to combustion engines.
Hydrogen fuelcells only emit water, addressing critical climate challenges, as there are no carbon dioxide emissions. Nor are there air pollutants that generate smog and cause health problems at the point of operation. Fuel cells are quiet during operation because they have few moving parts.
What is striking is that the exact same terms of discussion could have been used a century ago. You must replace fuel cells and hydrogen with the combustion engine and oil. In 1917, the battery was already 4 or more times more efficient than the combustion engine. Even so, gasoline and combustion engines completely prevail, essentially because they were more practical (fast refueling, greater autonomy and, in the long run, it was easier to create an oil refueling infrastructure).
Answer: Simply wrong, FC systems are known for their reliability and robustness. A fuel cell consists of two electrodes, a negative electrode (or anode) and a positive electrode (or cathode) interspersed around an electrolyte. A fuel cell uses the chemical energy of hydrogen or other fuels to produce electricity cleanly and efficiently. In situations where the cell runs out of hydrogen fuel locally, there is an “inversion” of the cell, causing the cell to consume itself due to carbon corrosion and eventually fail.
This research was supported by the Office of Hydrogen and Fuel Cell Technologies (DOE-EERE-HFTO) of the United States Department of Energy, Energy Efficiency and Renewable Energy through the Electrocatalysis Consortium (ElectroCat). Recently, a multidisciplinary and institutional group has identified a solution to these two problems in a key component of the fuel cell: the catalyst used to drive reactions. In a fuel cell electric vehicle (FCEV), these zero-emission tailpipe systems offer high efficiency and power density for transporting medium and heavy loads and long distances. This article criticizing the fuel cell car is mainly based on two arguments (the lower energy efficiency of the FCEV) in front of many hydrogen experts who have affirmed for decades that renewable energy must be the source of hydrogen in order to be environmentally friendly.
I just saw a guy fill his fuel cell car with hydrogen, and it didn't seem any harder than filling it with gas, besides there was no smoke. Download the Fuel Cells section of the Office of Hydrogen and Fuel Cell Technologies Multi-Year Research, Development and Demonstration Plan for full details on technical objectives. Over time, this will help make fuel cell systems more efficient, durable, and economically viable to make better use of clean energy resources. Assuming that a large quantity of hydrogen is produced from cheap and variable energy for such purposes, the additional cost of supplying hydrogen for transport may be reasonable.
Hydrogen proton exchange (PEM) membrane fuel cells promise to use fuel cells in electric vehicle (EV) applications. In addition to California consumers who drive fuel cell cars, UPS and Walmart have warehouses that use fuel cell forklifts, which refuel much faster than battery-powered versions. .