This blog post via: The fuel cell problem
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But fuel cells also have their own problems. Now, a direct ethanol fuel cell to add is not mature enough, while the methanol toxic and volatile than the alcohol faster, of course, higher energy density than ethanol. These elements add fuel to the fuel cell is an issue, and the fuel storage is not a small challenge, this toxic stuff on the street Are we going to sell Mode? Is obviously impossible. And on the plane how to do? Perhaps the future of the airport toilets should assume their task of another one – methanol before boarding the collection, this way, the fuel cell will not be too convenient to use them.
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Moreover, fuel cells, lithium batteries can not be as great as the energy of tolerance, the power output of a more balanced and therefore unable to cope with the unexpected peak power demands, coupled with its ups and downs of power can not be too strong, affecting the fuel cell applications.
Fuel cells also have to face the operating temperature. Hydrogen fuel cells can be as low as five degrees Celsius under the conditions of work, the scope of work I am afraid that the temperature of alcohol should be higher. This is the average person may not be a big problem. However, hydrogen fuel cells will require a sustained pressure of the air flow through the battery module, which will lead to noise and general users make it difficult to accept, as if the face is not the same as electronic equipment but the machinery and equipment.
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Recent studies have made a noise reduction efforts, it has greatly reduced operating noise. But we also need to pay attention to start the hydrogen fuel cell energy is needed, that can not be completely abandon the traditional batteries, fuel cells can not allow access to each mobile device, but can only become the center of personal power.
However, this is not the issue of alcohol fuel cells, their responses can be reduced to the middle of the reaction with water, thus surrounding the electrode, water and methanol concentration requires careful consideration and can not be too thick or too thin. We still look forward to practical use of alcohol fuel cells, and only at that time, the battery can also be, like people, drink …I am afraid that time would have the popularity of fuel cells.
Ningbo Port to increase exports of natural graphite
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According to Ningbo Customs statistics, 1 ~ 8 months, exports of natural graphite in Ningbo, Zhejiang, 204.7 thousand tons, worth 21.33 million U.S. dollars over the same period last year rose 56.5% and 52.9%, the average export price of 104 U.S. dollars / ton, down 2.3% . Products are all exported to Japan and South Korea, respectively, exported 192.9 thousand tons and 1.18 million tons. Foreign-invested enterprises to export the main force, a total export of natural graphite 158.7 thousand tons, accounting for 77.5% of total exports.
As the iron and steel, automobile and other industries, domestic and foreign markets to increase demand for natural graphite. At the same time, our country decided to September 1, 2006, the right type of graphite related products, the implementation of the interim export control measures can be used as alternatives to stimulate the natural graphite export growth. Experts pointed out that because the blind exploitation of China in recent years led to excess capacity of graphite, export market disorder, the export of natural graphite showed a fall in price trend of increase in volume, should pay attention.
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