Where is the battery technology difficult to break through? The biggest factor restricting the development of the current battery is still the material, including the positive and negative materials and the electrolyte. To make a fundamental breakthrough, it is necessary to develop new batteries and find new materials or new methods.

　　At present, electric vehicles, mobile phones, tablets, and mobile power sources use lithium-ion polymer batteries. Because of their recyclable performance and high-capacity power storage, lithium has an atomic number of 3, which means it has three protons, which is the most Light alkali metal element, which makes it the most suitable material for preparing the positive electrode of mobile battery among the known materials. Compared with earlier nickel batteries, lithium batteries are smaller, lighter, and have higher energy density. However, there are also many problems, the most important of which is fever. In the process of charging and discharging lithium batteries, a large amount of heat is generated in a high-density space.

　　The number of lithium ions in a lithium battery is fixed. If you want a longer battery life, you must increase the number of batteries, but this in turn means heavier equipment, greater heat generation, and a higher possibility of overheating and explosion. If you want to be safer or more portable, you must sacrifice the number of batteries and use time.

　　Therefore, the biggest factor restricting the development of the current battery is still the material, including the positive and negative materials and the electrolyte. There are mainly several types of cathode materials, such as lithium cobalt oxide, lithium manganate, lithium ferrite, and their mixtures. The cathode material directly affects the amount of electricity per unit volume. At present, these materials can no longer meet this requirement. The needs of the times.

　　Therefore, if you want to make a fundamental breakthrough, you must develop new batteries, find new materials or new methods. Of course, objectively speaking, the battery is not completely blamed for the fact that the mobile phone is so expensive now. The mobile phone itself is over-configured and the processor is too high. Poor power consumption is also a very important aspect. According to the current situation, the screen resolution of mobile phones is getting higher and higher. 1080p has become the standard configuration, 2k screens are also close to popularization, and 4k screens may also be available in the future. Appearing in mobile phones, in fact, this has already exceeded people's needs, and the increase in resolution has increased the burden on the GPU, making the mobile phone truly an electric tiger. The combination of this series of factors makes us always feel that the battery of the mobile phone is not strong enough and the battery life is not enough.

　　And back to the problem itself, another reason for the poor battery life of mobile phones is that in addition to the basic nature of chemical energy storage, any commercial battery that wants to mass-produce The reserves of used elements, such as nickel and lithium ore, can be mined on a large scale. However, rare earth elements, or for example, man-made elements, cannot be supplied to civilian technology in terms of output and price. Energy storage batteries, for example, can make your 2k screen mobile phone use normally for 10 days, but the battery alone costs 200,000 yuan and will definitely be abandoned by the market.

　　Although many tireless researchers have turned their attention to the nano field, for example, Chen Xiaodong of Nanyang Technological University used titanium dioxide nanotubes as anodes and proposed a new type of lithium battery that can charge 70% in 2 minutes. In recent years, the graphene fire has also Provides more possibilities for the advancement of batteries. However, any technology, from laboratory to commercialization, has to go through a long cycle, and under the premise that the global mobile phone market is divided by several major manufacturers and each has a very complete mobile phone production line, the major giants Staring at it, no matter who it is, the cost and risk of rashly adopting revolutionary technology can be described as affecting the whole body, and once it fails, it may permanently lose its leading position accumulated for many years. These factors will greatly affect the upgrading of mobile phone batteries.

　　So is the bottleneck period of battery technology really unsolvable? You really don’t need to be too pessimistic. In fact, as far as lithium batteries are concerned, the energy density of lithium-ion batteries has also been increasing in recent years, but it is generally in the hundreds of years. Most people don’t understand it. Batteries are about safety, just like medicines. To put it in the vernacular, new high-capacity materials do not go through a period of testing, nor dare to promote them. If a semi-finished product comes out with safety problems, who dares to come Do you want to be a guinea pig? I believe no one wants to scurry around the street with a time bomb at any time. So all you can do now is to wait patiently and look forward to the future direction of battery development.

　　The author thinks that Tesla’s earth ionosphere wireless charging technology is the most reliable solution to the current mobile phone battery life problem. The wireless power transmission method that Tesla conceives is to use the earth as the inner conductor and the earth’s ionosphere as the outer conductor through amplification and launch The machine uses a radial electromagnetic wave oscillation mode to establish a low-frequency resonance of about 8 Hz between the earth and the ionosphere, and then uses the surface electromagnetic waves surrounding the earth to transmit energy. Wireless charging over the air, charging while playing, whatever you want.