Another decision battery life ability of the elements is hot sensitivity. Standard lithium ion battery chemistry depends on a compound, unfortunately, the response of the residual moisture hydrofluoric acid, all the compounds corrosive. Like all of the chemical reaction, the temperature rise every 10 ° c, the process of speed will double, and smart phones will be hot.
Hydrofluoric acid gradually reduce battery energy, shorten battery life. Every time charging and discharging cycle, reduce the operating time, until the battery isn't a long enough time to recover. Heat sensitivity, make it all happen faster, this is why the user needs sometimes "lock" their own mobile phone, until it to cool down.
In addition, the battery or discharge, and generate heat. In the new functional requirements iphone5 higher power, will mean faster discharge. If the user anxious to use, must want to charge as quickly as possible, but more powerful batteries need more time, in order to reduce the number of charging, and charging high power choice, and it will generate more heat, further shorten battery life.
In this sense, three layer is designed or a reason. Because such every hot battery power components, all have metal heat shields or hot heat sink can use, but the extra weight and thickness. Two layers of design makes it just a little easier to keep away from the hottest part of the battery equipment. Apple obviously is comparing and balance. (even so, the new ipad battery has a built-in hot sling, emphasize the current lithium ion chemical heat sensitive.)
This shows, apple to keep the iphone
5 different, want to do a lot. If it can help to solve the energy density and thermal sensitive double blow. So the patent for the apple will be continued innovation of endorsement. In fact about battery chemical reaction, the market is there are a lot of new technology can be used for reference. Among them, lee imide), won't produce hydrofluoric acid, which provides a significant improvement thermal stability and battery life. It also allowed the shape of lithium ion have now, especially thickness, but what occupy a space is still not satisfactory.
Even in the iphone
5, you can't see the battery of the revolution, but should be able to realize the iphone 6 breakthrough technology. Iphone 5 at present only can do, it is ultimately choose two layer stripping out of the way. A larger screen provides greater regional and extra PCB density. So we can provide more space for battery, in order to improve the energy efficiency of the best proportion. So, to ensure that iphone 5 will not than iphone 4 s short life.
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