| battery structure, and classification: | | | | 1, using discarded zinc batteries leather to take zinc |
| Now I come to give us a presentation Battery Bar: | | | | sulfate crystals. |
| The Hp 6735s battery is a kind of chemical energy | | | | Experimental supplies: beakers, metal framework sets |
| directly into electrical energy. It can be divided into | | | | (with hoops), alcohol lamp, evaporating dish. |
| non-rechargeable batteries and rechargeable batteries. | | | | Dilute sulfuric acid, zinc dry skin. |
| Here we have to look at the structure of | | | | Experimental steps: |
| non-rechargeable batteries, mainly at three levels: | | | | ⑴, the dry skin surface of the zinc impurities |
| first, the outermost layer of "skin" is also what we | | | | removed years later put them in beaker. |
| call the shell, and second, for the reaction of chemical | | | | ⑵, poured into the beaker amount of dilute |
| substances, was shell encase the middle is the | | | | sulfuric acid, to the degree of immersion of zinc skin |
| graphite electrode. When the chemical reaction into | | | | until the skin of zinc dissolved. |
| electrical energy by following the output of graphite | | | | ⑶, the reaction solution after filtering. |
| electrodes to form the outer loop to form the circuit | | | | ⑷, the filtrate into the evaporating dish, |
| current: The battery is working. Is divided into | | | | evaporating dish on the metal Hp 6700 battery |
| non-rechargeable batteries: nickel metal hydride | | | | framework to Taiwan's hoops, and with the |
| batteries, nickel-cadmium batteries. | | | | kerosene lamp, a heated. Precipitation of more |
| Second, the hazards of waste batteries: | | | | crystals to be evaporating dish stops heating, |
| When the battery's internal chemical reaction | | | | evaporating dish using the waste heat to the filtrate |
| complete, the battery can no longer be powered, | | | | evaporated, the recovery of zinc sulfate crystals |
| and has become a waste batteries, usually people will | | | | placed in designated containers. |
| readily lose one, and then bought another one new. | | | | 2, the second layer composition of chemical |
| Most people would say that this is a normal mile. But | | | | substances are complex, and only with advanced |
| they did not expect, just below that gestures, but | | | | machinery in order to extract out the ingredients, and |
| also in the destruction of their homes - the Earth. | | | | then made into useful things. Japan also had a such a |
| Some people may ask: "It's that one little thing for | | | | factory, the battery recycling, from which extracted |
| the planet, able to do what is great! Also said that | | | | mercury, but a ton of used batteries can be |
| what is destroyed?" Batteries do not seem to be as | | | | extracted up to a few tens of kilograms of mercury, |
| destructive, but it can not all see things at face value. | | | | so the factory Finally, since investment is huge, small |
| Waste contains large amounts of heavy metals inside | | | | and bankruptcy. Although the Government |
| the battery mercury, cadmium, manganese, lead. | | | | encourages the development of this industry, but |
| When the waste batteries from sun and rain | | | | many manufacturers did not dare to put their lives at |
| corrosion of the surface of the cortex, in which the | | | | risk. Innermost layer of graphite electrodes is of |
| ingredients will penetrate into the soil and | | | | course 啦. |
| groundwater, once people eating contaminated land | | | | 3, the battery is the most inside graphite carbon rod, |
| productivity of crops, or by drinking contaminated | | | | which also has a significant role in recovery after the |
| water, these toxic heavy metals will enter person's | | | | great economic value. If you cut down some from |
| body, slowly deposited on the grave threat to human | | | | the graphite powder, touch what it has creamy feel. |
| health! One measurement of a battery, according to | | | | This determines the nature of graphite it can be used |
| rot in the soil can make one square meter of land | | | | as a lubricant. Some of the machines work at high |
| loss of use value; a button button Hp 6720 battery | | | | temperatures on the graphite used as lubricant, for |
| can contaminate 600,000 liters of water, equivalent | | | | apart from application of graphite powder lubrication, |
| to the amount of drinking water a person's life. The | | | | but also applied to its high melting point can be high |
| nearest people to the world's five billion dollars a | | | | temperature in nature. In fact, graphite there is |
| month per person lost a battery, one-year cumulative | | | | another important use, that is used to make |
| 60 billion batteries, the destructive power of the | | | | synthetic diamonds, and perhaps few people know |
| earth can be said is a great, and its effects on | | | | about graphite and Hp 550 batterydiamond carbon |
| human health risks is more difficult to imagine the | | | | formed by a single quality, but their atoms arranged |
| consequences of , and, according to statistics, every | | | | in a different order, leading to very significant |
| year, Beijing spent batteries and mercury into the | | | | differences between them to graphite heated to |
| natural environment has reached 29.6 tons, this | | | | 20000C, pressurized to 5 × 109 Pa ~ 1 × 1010 Pa |
| number can not help but frustrating. So used | | | | and catalyst conditions, one can create that shiny |
| batteries can not be arbitrarily discarded. In the | | | | man-made diamond. People saw the beauty of |
| battery recycling, countries attach great importance. | | | | diamonds, how they never think it was from that of |
| In addition, the developed countries, production of | | | | graphite ink made of tetrahedrite tetrahedrite. |
| sub-types of zinc-manganese battery is a | | | | Germany has a Ke Sima President, working in China |
| mercury-free batteries. The developed countries do | | | | for nearly 20 years, she and her friends regarded |
| not allow imports of mercury-containing batteries. | | | | treatment of waste batteries back to Germany, in |
| Therefore, China's mercury batteries can not enter | | | | China, she only bought rechargeable batteries and |
| Europe and the United States developed regions. | | | | mercury-free batteries. Henan Xinxiang in Tian |
| Third, the handling of used batteries: | | | | Guirong tirelessly over the past year, on a voluntary |
| Disposal of waste batteries is also available from the | | | | basis to promote environmental awareness. Printed |
| structure of the battery to start, first, the surface | | | | materials, hold lectures, financed a few million to buy |
| of the skin, its main ingredient is zinc. In the third-year | | | | 30 tons of waste batteries. It seems that we should |
| experiment has such an experiment: | | | | also learn from them, do their duty. |