Results French inventors made the first hydrogen balloon in the18th century by using relatively low-density hydrogen, but at that time, due to technical limitations, hydrogen could not be used as fuel, so how did hydrogen gradually develop into energy? 1839, according to the principle of water electrolysis, William Robert Grove of the Royal Society put forward the idea of using hydrogen and oxygen to generate electricity in reverse. Based on this idea, he successfully developed the world's first safe and environmentally friendly hydrogen fuel cell. Later, in 1939, Francis Bacon of Cambridge University installed this kind of hydrogen fuel cell on a forklift and successfully carried out a test drive.
1950, Austrian scientist Karl coates successfully developed the hydrogen fuel cell vehicle for the first time. Based on Karl Coates' design achievement, 1960, American automobile manufacturer General Motors invested 200 researchers to design an ordinary hydrogen fuel cell vehicle. Almost at the same time, Europe is also actively researching and developing hydrogen fuel cell vehicles, German automobile manufacturer Daimler Benz.
In a word, after the research and development of countless scientists, hydrogen energy has now become an indispensable energy source for automobile environmental protection.
In this article, Niu Ge will look at the top ten leading hydrogen energy enterprises.
I. Meijin Energy
Hydrogen energy main tap
The company's semi-annual return on net assets is 1 1.27%, gross profit is 32.93%, semi-annual revenue is 8.893 billion, up 69.55% year-on-year, net profit is12.49 million, up 1909.35% year-on-year, and the current total market value is 59.997 billion.
II. Shares of Magnolia officinalis
Hydrogen energy faucet
The company's return on net assets in the semi-annual report is 1.58%, gross profit is 28.75%, revenue in the semi-annual report is 357 million, up1/9.68% year-on-year, and net profit is170,000, up 156.07% year-on-year. At present, its total market value is up.
Third, all-wood power
Hydrogen fuel cell faucet
The company's semi-annual return on net assets is 5. 10%, gross margin 12.28%, semi-annual revenue is 2.698 billion, up 24.39% year-on-year, and net profit1.1300 million, up 4.94% year-on-year. At present,
Fourth, Weichai Power
China heavy truck industry leader.
The company's semi-annual return on net assets 1 1.25%, gross profit 18.84%, semi-annual revenue12,638.8 billion, up 3.375% year-on-year, net profit of 6.432 billion, up 37.42% year-on-year, and current total market value/kloc-
Verb (abbreviation for verb) snowman shares
A leader in the ice maker industry.
The company's return on net assets in the semi-annual report is-1.35%, gross margin 13.56%, semi-annual revenue is 820 million, up 36.98% year-on-year, net profit is-28 million, up 0.87% year-on-year, and the current total market value is 5.447 billion, with a dynamic P/E ratio of -95.87.
Intransitive verb Zhongtai shares
Household low-temperature equipment faucet
The company's semi-annual return on net assets was 5.3 1%, gross profit 18.20%, semi-annual revenue165438+36 million, up 24.6% year-on-year, net profit was 654.38+25 million, up 55.74% year-on-year, and the current total market value was 9.455 billion.
Seven, marine electrical machinery
Leader of Brushless Motor Enterprise
The company's return on net assets in the semi-annual report is 2.79%, the gross profit margin is 65,438+09.00%, the revenue in the semi-annual report is 4.650 billion, up 32.66% year-on-year, and the net profit is 240 million, up 265,438+03.95% year-on-year. The current total market value is 65,438+09374 million, and the dynamic P/E ratio is 40.
Eight, Zhejiang Xinneng
New energy industry leader
The company's return on net assets in the semi-annual report is 3.29%, gross profit rate is 56.88%, semi-annual revenue13.1900 million, up 9.83% year-on-year, net profit is 223 million, up 29.48% year-on-year, the current total market value is 27.498 billion, and the dynamic P/E ratio is155.
Nine, Yang coal chemical industry
Domestic coal chemical industry leader
The company's return on net assets in the semi-annual report is 5.89%, gross profit margin is 12.65%, semi-annual revenue is 9.445 billion, up 14.76% year-on-year, net profit is 336 million, up 154.3% year-on-year, and the current total market value is138.28 million, which is dynamic.
X.furuite clothes
Equipment manufacturing leader of LNG whole industry chain
The company's semi-annual return on net assets is 1.86%, gross profit is 19.8 1%, semi-annual revenue is 856 million, down 1. 1% year-on-year, net profit is 32 million, up 2.05% year-on-year, and the current total market value is 58/.
Last place: () (hydrogen energy) faucet
Reason: (? After the main force is assembled, what is the shape of the second bottom recovery? )