Apple’s co-operation with the Best Buy to sales iPad
Apple Tuesday said the upcoming iPad's sales model will work with iPhone (mobile Internet) introduced a similar pattern when it is only through the company's direct sales channels and the cooperation of a number of specific retailers.
Chief Operating Officer Tim Cook, Apple's (Tim Cook) at the Goldman Sachs Annual Technical Conference, said, iPad will be mainly through retailers, online education, and other direct sales, but also through the Best Buy and other stores sell apple iBook G4 12-inch battery.
Although Cook did not mention Apple in the U.S. operator partners, and his attitude shows AT & T's retail stores may be sold iPad. In the overseas, Apple's top retailers may sell the product in the physical stores.
Cook says that he has a iPad has been 6 months, and that, once the user experience of the iPad would not buy online this. He said: "This is an incredible experience, and we are very excited, anxious to ship as early as possible."
Cook also said that does not worry about iPad will seize the iPod Touch and Mac and other Apple products in the market. He said: "499 U.S. dollars the price is a good bargain, and it can give you amazing experience."
The hazards of wasted batteries
Used batteries Introduction
1. Battery components: batteries, rechargeable batteries, composition: zinc skin (metal), carbon rod, mercury, sulfuric acid compounds, copper cap; batteries with lead-based compounds. For example: 1, the composition of waste zinc-manganese batteries, weighing 70 grams, of which carbon rod 5.2 grams, 7.0 grams of zinc skin, manganese powder 25 grams, 0.5 gram of copper cap, the other 32 grams.
2. Battery Type: Battery mainly disposable batteries, rechargeable batteries and car batteries. Disposable batteries, including button batteries, ordinary batteries and alkaline manganeseInspiron 8500 battery,Inspiron 8600 battery, disposable batteries more mercury. Secondary battery mainly refers to rechargeable batteries containing cadmium. Automotive Waste Batteries contain acid and heavy metals lead.
3. The quantity of batteries: DC, MP3 and other digital products with a whopping speed of development, but also are using the battery, battery usage is increasing rapidly, if they are not put into action, the battery will happen sooner or later the phenomenon of Mt.
Waste battery looks modest, but the harm had been great. If you know the battery contains mercury, cadmium and lead metals harm, you will know that waste batteries much.
Waste Battery hazards
Battery products harmful to the environment are mainly acid, alkali and other electrolyte solution and heavy metal pollution. Pollutants in different types of batteries are also different.
In general, the battery of harmful substances are mainly Zn, Hg, CNi, Pb and other heavy metals; lead-acid batteries in the H2S04; a variety of alkaline batteries and lithium batteries KOH electrolyte, etc. IiPP6. Hg and its compounds, especially organic mercury compounds, has a strong biological toxicity, bioconcentration faster rate and a longer biological half-life of brain organs. Easy Cd accumulation in plants and animals in vivo, affecting the growth of plants and animals, are highly toxic. Pb on the person's chest, kidney, reproductive, cardiovascular and other organs and systems have adversely affected the performance of mental decline, kidney damage, infertility and high blood pressure. Zn, Ni toxicity is relatively small, but more than a certain concentration range, would have adverse effects and harm the human body. Waste battery acid, alkaline hydrolysis would affect the quality of the soil solution, the pH value of water benefits, so that soil and water acidification or alkalization. Battery electrolyte composition of pollution is one of the major components of soluble heavy metals, particularly lead-acid batteries in a large number of sulfuric acid electrolyte lead and nickel-cadmium batteries cadmium hydroxide. Batteries of heavy metal ions dissolved in the soil or water the roots of plants and is absorbed, when the animals to plants as food-stuffs, the body will accumulate heavy metals. Human eating food containing heavy metals, vegetables and meat, water, along the food chain, heavy metal accumulation within the body would be. As the heavy metal ions in the body difficult to excrete, will eventually damage the nervous system and liver function.
Waste Battery Recycling Study
2.1 Waste Battery Recycling Status
Domestic use, most lead-acid battery industry battery, lead storage batteries accounted for more than 50% of the total cost, mainly in the fire, wet metallurgical processes, as well as solid-phase electro-reduction technology. The outer shell is plastic, can be regenerated, the basic realization of no secondary pollution.
Small secondary batteries are currently used by more nickel-cadmium, nickel hydrogen and lithium-ion batteries, nickel-cadmium batteries, cadmium is a strictly controlled environment, one of heavy metal elements, lithium-ion batteries in the organic electrolyte, nickel cadmium, nickel metal hydride battery The alkaline battery of supporting materials and manufacture of copper and other heavy metals, constitute environmental pollution. A small secondary battery current total is only hundreds of millions of domestic use only, and most of the smaller, low value waste batteries to use, coupled with the use of scattered, most for domestic waste disposal, there is the cost of their recovery and management of problem of recycling there are some technical problems.
Civil Battery is the use of the largest and most scattered battery products, the domestic annual consumption of 8 billion. There are two series of zinc-manganese and alkaline manganese, as well as a small amount of zinc-silver, lithium batteries and other varieties. Zinc-manganese batteries, alkaline zinc-manganese batteries, zinc-silver batteries are normally used for mercury or mercury compounds as corrosion inhibitor, mercury and mercury compounds are highly toxic substances. Waste batteries as living garbage incineration, the waste batteries Hg, Cd, Pb, Zn and other heavy metal part of the row of people at a high temperature atmosphere, to become part of the ash, resulting in secondary pollution.
2.2 Recycling of Waste Dry Battery Technology
a. Artificial separation recycling technology
The general classification is dry, cut open a simple mechanical, artificial leather isolated zinc, plastic cover, carbon rods and so on, the remnants of Mn02, water, a mixture of manganese stone anyone to return to brick kiln calcination, made of dehydrated Mn02, this method simple, but the occupation of labor are more cost-effective small.
b. Pyro-recycling technology
Generally is dry classification, broken, into the rotary kiln at 1100 ~ 1300 degrees Celsius of high temperatures, zinc and zinc chloride is oxidized to zinc oxide with the flue gas exhaust, with cyclone recovery of zinc oxide, the remaining two manganese oxide and manganese stones into the water, residues, further recovery of manganese and other substances, this method is easy, the average smelter Needless to additional equipment can be recycled zinc.
c. Wet-recycling technology
According to zinc, manganese dioxide can be dissolved in acid in principle, the waste dry batteries classification, broken, placed in leaching tanks, by adding dilute sulfuric acid (100 ~ 120g / L) for leaching obtained zinc sulfate solution, the rule of law must be used electrolytic metal zinc, copper residues separated by washing cap, carbon rods, the residues Mn02, water, stone by calcination of manganese obtained Mn02. The methods used to roast a leaching method and direct leaching.
Wet and fire wears compared with less investment, low cost, factory speed, high-profit, technical flexibility and other advantages, but can not guarantee full recovery of harmful ingredients.
3. Battery recycling use of the process of secondary pollution prevention
The above three types of recovery methods are simple, but have less, there is a secondary pollution problem, measured by a large number of experiments, we have a viable method of secondary pollution prevention and control.
Waste dry batteries first classification to mechanistic cut open, the isolated copper cap, zinc skin, respectively recycled. The remaining carbon package of material through the magnetic iron, press the solid-liquid ratio 1:4 of flooding the system with the 1 hour, take the upper clear liquid to evaporation, crystallization, the main component of sediment is Mn02, MnO (OH), acetylene black , Carbon and other substances, by adding refining kiln to 600 degrees Celsius, the resulting smoke was condensed by the condensing fluid after regular cleaning can be very pure mercury. But also to prevent the mercury vapor pollution of the environment. In the calcination process, the mixture in a large number of acetylene black and carbon, will Mn02 restore MnO. The reaction process is as follows: 2Mn0 2 + C ---> 2MnO + C0 2. To the calcined material by solid-liquid ratio 1:4 by adding the concentration of less than 2mol / L sulfuric acid solution, the temperature 80 ℃, soaked 1 hour, reaction occurs as follows: MnO + H 2 S0 4 ---> MnS0 4 + H 2 0. to be manganese sulfate salt solution at the same time, will also be introducing other soluble heavy metals, sulfate.
Derived from metals such as zinc and copper skin melting can be directly used, ammonium chloride can be produced as a chemical fertilizer or purification reagents, manganese sulfate, animals, plant growth hormone ingredients can be used to paint the ink drying agents and some organic synthesis reactions catalyst, in addition is also used in paper making Inspiron 9200 battery,Inspiron 9300 battery, ceramics, printing and dyeing and the production of manganese reagents. Table 1 shows the zinc-manganese dry battery of recyclable material elements.
This means less investment recovery, using a simple equipment, easy to be achieved in the medium and small cities, thus eliminating the transport of waste batteries.
After the battery recycling solution, concentrated, and the reaction of metal complexes with EDTA can be the total elimination of secondary pollution. The determination of the solution after the recovery of used batteries of heavy metals contained in line with national environmental standards. To separate these metals, the use of its stability in different scalable processing. Table 2 for the metal ions and EDTA complexing stability constant.
4 battery recycling process of waste problems and suggestions
① After battery recycling can not be disposed, generally used pile. Piling up the process of the battery may leak or toxic substances from proliferating.
② As the batteries are different types of counterfeit products and more battery recycling also create difficulties, and some battery is mercury batteries, either cadmium batteries, and some with ammonium chloride as the electrolyte, while others have Zeyi chloride zinc as the electrolyte, it is proposed to use a uniform standard manufacturers logo battery types and contains the main ingredients for recycling.
③ enhance the development of high-performance environment-friendly batteries Inspiron 9400 battery,Inspiron B120 battery to achieve common civilian mercury-free batteries.
④ recycling of waste batteries, national policies should be given support.
PDA Pocket PC battery and its proper use
PDA Pocket PCs are now used in lithium-ion battery
The use of lithium-ion battery, pay attention to three points:
1, how to charge the battery for a new
The use of lithium batteries should be noted that a period of time after the battery is placed into hibernation, lower than normal capacity at this time, use of time has also come to shorten. However, lithium batteries can easily activated, as long as after 3-5 times the normal charge-discharge cycles the battery can be activated to restore to normal capacity. As the lithium battery's own characteristics, its decision is almost no memory effect. PDA Pocket PC so users of the new lithium battery in the activation process does not require special methods and equipment. Not only the theory that, from my own practice point of view, from the outset on the use of standard method of charging that "activation" approach is the best.
For the lithiumInspiron 1720 battery,Inspiron 1721 battery "activate" problem, many say is: recharge time must be more than 12 hours, repeated three times to do in order to activate the battery. This "The first three charging more than 12 hours to charge" was obviously from the nickel battery (such as nickel cadmium and nickel metal hydride) inherited from the argument. Therefore, this argument can be said that a beginning of miscommunication. Lithium batteries and nickel battery charge and discharge characteristics are very big difference, but also very clear to tell you that I have gone through all the serious official stressed that technical information and charge-off will discharge lithium batteries, especially lithium liquid ion battery causing great harm. Accordance with the standard charge and therefore the best time and the standard method of charging, in particular, not to carry out more than 12 hours of super-long charge. Usually, PDA Pocket PC specification introduced charging method is suitable for the PDA Pocket PC standard charging method.
In addition, the lithium batteries PDA handheld computer or the charger will automatically stop after the battery is full charge, there is no electricity nickel charger for 10 hours of the so-called "trickle" charge. In other words, if your lithium batteries in full, on the white charger is also sufficient. And we can not guarantee that no one battery charge and discharge protection circuit features and never change and the quality of fail-safe, so your battery will be a long-term at the brink of danger. This is also another charge against the chief reason.
In addition, in some PDA handheld computers, charging more than a certain time, if they do not remove the charger, this time not only to stop charging system will start to discharge - charge cycle. Perhaps the makers of this approach has its own purpose, it is clear that the battery and the PDA Pocket PC / charger is detrimental in terms of life expectancy. At the same time, long charging would take a long time, often at night, but to our power grid situation, at night in many places higher than the voltage, but also volatile. As already said, the lithium batteries is very precious, and it more than nickel in the electric charge and discharge aspects of fluctuations in the capacity of resistance is much less, so this brings additional risk.
In addition, another aspect can not be ignored is the lithium Inspiron 2600 battery,Inspiron 2650 battery is also not suitable for over-discharge, over-discharge of lithium batteries is also very unfavorable. This leads to the following questions.
2, normal use should be when to start charging
Because the number of charging and discharging is limited, so should be PDA Pocket PC the battery recharge light as much as possible. But I found one on the lithium-ion battery charge and discharge cycle test table, on the cycle life data is as follows:
Cycle life (10% DOD):> 1000 times
Cycle life (100% DOD):> 200 times
DOD is the depth of discharge in which the English abbreviation. Can be seen from the table may be the depth of charge and discharge times, 10% DOD cycle life than when the 100% DOD for much longer. Of course, if the actual charge equivalent to the relative total capacity: 10% * 1000 = 100,100% * 200 = 200, the latter a full charge and discharge, or better than some, but in front of friends do say that some of the amendments: Under normal case, you should have a reserve battery power is left in accordance with the principle of charging run out of charge again, but if your battery in your first two days can not be expected to persist throughout the day, when they should start on time charge, of course, if you are willing to back the charger to the office again a different matter.
And you need to recharge in order to cope with the anticipated upcoming busy communications will lead to an important event, even though there are a lot of battery power over time, then you just charge ahead, because you are not really lost, "a" sub-charge cycle life , that is, "0.x" times only, and often this x will be very small.
Run out of battery power and then filling the remainder of the principle is not want you to go to the extreme. And long, like charging a widespread view that "as far as possible PDA Pocket PC battery power runs out, it is best to use automatic shutdown." This is really just practice on nickel batteries, The purpose is to avoid the memory effect occurs, unfortunately, it is also spread of lithium batteries on this. It has been since the PDA Pocket PC low battery warning appears, still do not charge to continue to use the example has been used in automatic shutdown. The results in this case, the PDA handheld computer and boot in the subsequent charge had no response, had to give customer service overhaul. In fact, this is because of the battery caused by excessive electrical discharges in low voltage, so that does not have the normal charge and the boot and conditions.
3, for lithium batteries the right way PDA Pocket PC
To sum up, I lithium batteries PDA handheld computer in the use of charging and discharging, the most important tips are:
1, in accordance with standards and procedures, charging time, even the first three have to do so.
2, when there is low power PDA Pocket PC tips, you should try to begin charging a timely manner.
3, lithium batteries do not need to activate the special method, in the PDA handheld computers in the normal use lithium batteries will naturally activated. If you insist on spreading the use of "the three previous 12-hour long activation charge" approach, in fact there will be no effect.
Therefore, all the pursuit of super-long 12-hour rechargeable lithium Inspiron 5150 battery,Inspiron 5160 battery,Inspiron 6000 battery and the integration of PDA handheld computers used in the practice of automatic shutdown, are wrong. If you have previously done in accordance with the wrong argument, please correct in time, perhaps not too late.
Of course, in the PDA handheld computers and chargers to protect themselves and control circuit of good quality cases, the protection of lithium batteries is still quite guaranteed. Therefore, the charge is the focus of understanding of the rules, and in some cases also may make some concessions. For example you find in your Pocket PC PDA the night before bed charge, you can also start charging before going to bed. Crux of the problem, you should know what the right thing, and do not deliberately wrong to do so in accordance with.