R03 Carbon battery.Where exactly is it difficult to break through in battery technology?

　　At present, electric vehicles, mobile phones, tablets, and mobile power supplies all use lithium-ion polymer batteries because of their cyclability and high-capacity power storage. The atomic number of lithium is 3, which means that it has three protons, which is the most It is a light alkali metal element, making it the most suitable material among known materials for making removable battery cathodes. Compared with earlier nickel batteries, lithium batteries are smaller, lighter and have higher energy density. But it also has many problems, the most important one being fever. During the charging and discharging process of lithium batteries, a large amount of heat is generated in a high-density space.

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

　　Therefore, the biggest factor restricting the current development of batteries is materials, including positive and negative electrode materials and electrolytes. There are several main types of positive electrode materials, such as lithium cobalt oxide, lithium manganate, lithium ferrite, and their mixtures, etc. The positive electrode material directly affects the amount of electricity per unit volume, and currently these materials can no longer meet this requirement. the needs of the times.

　　Therefore, if we want to make a fundamental breakthrough, we must develop new batteries, find new materials or new methods. Of course, objectively speaking, the battery is not entirely to blame for the fact that mobile phones consume so much power now. The configuration of the mobile phone itself is too high, and the processor Poor power consumption is also a very important aspect. Judging from the current situation, the screen resolution of mobile phones is getting higher and higher, 1080p has become the standard, 2k screens are close to becoming popular, 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, thus making the mobile phone truly become an electric tiger. The combination of this series of factors makes us always feel that the battery of the mobile phone is not strong and the battery life is not enough.

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