Before talking about new energy vehicles and hydrogen f […]
Before talking about new energy vehicles and hydrogen fuel cell rubber gaskets, let us first consider the problems existing in various types of vehicles.
With the industrial revolution, it has been more than 100 years since the automobile, and various problems such as comfort, safety, and speed have been continuously improved, but the energy problem has not been completely solved. What are the problems?
The non-renewable and pollution of gasoline / diesel used in traditional fuel vehicles, the short battery life and long charging time of pure electric vehicles, hybrid electric vehicles mainly use fuel, but the energy consumption is slightly lower.
With the intensification of global warming, more and more car manufacturers are aware of the unsustainability of traditional fuel vehicles, and it is imminent to find new energy as a source of power. It can be said that which manufacturer solves the energy problem, who will compete in the future Has an absolute advantage in
Hydrogen fuel cell car
Under this background, the fuel cell has entered everyone's vision. Unlike ordinary batteries, it is a power generator, which is a device that converts the chemical energy of fuel (such as methanol / natural gas) into electrical energy, and It ’s not that you store the electricity first and then release it,
Using hydrogen as a fuel cell, the energy conversion rate is 60% -80%, which is 2-3 times that of the traditional internal combustion engine, and it has rich sources of hydrogen production, such as electrolyzed water, methanol, ethanol, natural gas, etc. It is actually used very early In the aerospace field, due to the immature technology of hydrogen production, storage and transportation, and application at that time, it was not widely used. Especially, the hydrogen fuel cell rubber gasket did not have a particularly good solution at the time.
Hydrogen fuel cell rubber gasket
After decades of development, hydrogen fuel cells have made great progress, especially Toyota, with more than 10,000 patent applications for hydrogen fuel cells, and it has released the world ’s first mass-produced hydrogen fuel cell car Mirai. With 5 kg of hydrogen, it can travel 500 kilometers.
Next, what are the requirements of the hydrogen fuel cell rubber seals, one of the core components of hydrogen fuel vehicles:
1. Insulation, the fuel cell stack is composed of multiple single cells. If a short circuit is caused, the consequences are unimaginable.
2. The gas barrier must ensure the tightness of oxygen and hydrogen, and must not leak.
3. The material must be able to absorb shock and vibration, because it works in a car, and the bumps during driving are inevitable
4. It is necessary to have acid resistance and high temperature resistance, which is the most basic