What is the difference between graphene technology and 540,000 fast charging? Why are mobile phones still using CR1625 battery?

In the current mobile phone industry, the screens of mobile phones are gradually increasing, and people are using more and more mobile phones, but the battery life of mobile phones seems to have become the most serious problem in mobile phones, and it has also become a place that people pay the most attention to. The newly bought mobile phone can be charged once a day and maintain normal use for a day, but as the mobile phone is used for a longer time, the battery of the mobile phone becomes less powerful, so the battery life of mobile phones that have been used for too long has become the biggest problem. Therefore, major mobile phone manufacturers are also very troubled by the battery of mobile phones.

All mobile phone manufacturers are seeking breakthroughs and can make certain changes to the battery of mobile phones, but at present, the best way has not been found. Even Apple, which makes excellent mobile phones, has very big problems in mobile phone battery life and has not made too many innovations. Even the battery capacity of some mobile phones is not as high as that of domestic mobile phones.

Subsequently, many domestic mobile phones launched fast charging, especially OPPO's fast charging is famous. From the initial 180,000 super fast charging to the current 540,000 fast charging on the market, but these fast charging cannot fundamentally solve the problem, because it only makes the charging frequency of the mobile phone higher and the charging speed of the mobile phone faster, but it does not really solve the problem of the mobile phone, and there are more problems, which has become something that many mobile phone manufacturers can dream of achieving.

Most of the current mobile phones still use lithium-ion batteries, so why have graphene batteries begun to circulate in the market? Graphene has been long awaited, why do mobile phones still use lithium-ion batteries? Is 54w fast charging outdated? Why do mobile phone manufacturers still use lithium-ion batteries instead of graphene batteries? This has also become a question in the minds of many netizens.

The density of graphene batteries will be greater, and the battery life will be increased by about 50~60%, and graphene materials can also be made into mobile phone screens. What is the difference between graphene technology and 540,000 fast charging? Why do mobile phone manufacturers still use lithium-ion batteries? Because graphene has very strong heat dissipation performance or heat dissipation, and the heat dissipation of batteries will be better.

Of course, although graphene batteries are very excellent, the cost of graphene is very expensive. When graphene was first discovered, 1 gram cost as much as 2,000 yuan, so if graphene technology is to be applied to mobile phone batteries on a large scale, the cost will be very high. Although the cost of graphene is gradually decreasing, it is not impossible to use graphene mobile phones in the next few years, but at present. The cost is too high. Do you think we can use graphene batteries in the future? 3. Overcurrent protection. When the working current exceeds the set value, the protection IC cuts off the Mosfet tube. When the working current returns to the allowed voltage, the conduction of the Mosfet tube is restored.

Overcurrent current voltage drop: 0.1V. Here, the protection IC determines the voltage drop caused by the current flowing through the Mosfet. By dividing this voltage by the on-resistance of the Mosfet, the current of the overcurrent protection can be approximated. It is generally around 3~5A.

Overcurrent delay: 8 milliseconds. Note that this delay is much shorter than the previous delays for overcharge and overdischarge.

4. Short circuit. In fact, this function is an extension of overcurrent protection. When the protection IC detects that the voltage between the positive and negative poles of the battery output is less than the specified value, it is considered that the battery is in a short circuit state at this time, and the circuit is immediately cut off. The circuit is restored after the short circuit fault is eliminated. During a short circuit, the voltage of the positive and negative poles of the battery output is zero, while the actual voltage of the battery cell is normal.

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