Used Batteries And More Pollution
Used batteries a potential pollution has aroused extensive attention
. China is the worlds number one battery production and consumption of power, has information that China currently has more than 1,400 battery manufacturers, battery production capacity in 1980 over the United States and ranks first in the world. Chinas battery production in 1998 reached 14 billion, while the world total production of dry batteries is about 30 billion.
Such a large number of batteries include
Hp Pavilion dv2000 battery(
Hp dv2000 battery),
Hp HSTNN-LB31 battery,
Hp EV088AA battery,
Hp 417066-001 battery,
Hp F4486B battery and
Hp CGR-B1870AE battery, making a great problem is exposed, that is, how much pollution the batteries do not destroy our environment. If the one on the 1st cell in the ground rotting, its toxic substances can make one square meter of land lost value; throw a coin cell battery into the water, it contains toxic substances which cause pollution of 600,000 liters of water body , water equivalent to a persons life; used batteries contain cadmium, lead, mercury, nickel, zinc, manganese, which cadmium, lead, mercury is more harmful substances the human body.
Therefore, the collection and disposal of used batteries is very important, if disposed of improperly, may be on the ecological environment and serious harm to human health. While advanced technology has given us the right direction, but my battery is still not optimistic pollution phenomenon. Currently most of our garbage is mixed with used batteries be buried underground, over time, after conversion to battery decay, leaching of heavy metals, both can contaminate groundwater, they may contaminate the soil, eventually, by various means into the human food chain. Biological uptake of heavy metals from the environment through food chain biomagnification, step by step in the higher organisms, thousands of times more enriched, and then enter the human body through the food chain, and in some organs of savings cause chronic poisoning, Japan Minamata disease is a typical case of mercury poisoning.
Thin film solar cells Cheng Xinchong
When the domestic war battle it polysilicon when the feast of thin film solar cells already quietly open seats. Photovoltaic power generation field, as the two main master, crystalline silicon cells and thin film batteries, seems to pull a Competition.
As the name suggests is the layer of thin film battery into the solar cell thin films, the silicon is extremely rare and easier to reduce costs, while it is both an efficient energy products, but also a new type of building material, more easily with the perfect combination of architecture. Silicon raw materials in the international market against the background of continued tension, thin film solar cells has become the international PV market development trends and hot spots.
Although thin film solar cells have already emerged, but conversion efficiency is low, attenuation ratio were higher, a few years ago did not attract enough attention from the industry, market share is low. With its technological advances in photoelectric conversion efficiency is rapidly increasing, now more than two years ago increased to about 30% -40%, although still in comparison with crystalline silicon cells have very different, but the use of less materials, simple process low energy consumption, costs are certain advantages, more and more accepted by the industry.
Corresponding to this, following the hot solar modules, polysilicon fever, film photovoltaic cell has become the new investment hot spot areas.
Compared with crystalline silicon cells, thin film cells is much greater potential for cost reduction, driven by rapid technological progress in thin film batteries. Thin-film solar capacity may be the next to reach 20% of the entire solar energy industry, while only 7.6% in 2007, shows that among the space.
by: theo
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