Now China has become a powerful country in science and technology, but do you know how powerful China's technology is? The manned space station alone is not enough, and now it has successfully broken through the key technology of nuclear fusion, even leading the world by 15 years. Does this mean that China is not far from the artificial sun? It turned out that the fully superconducting tokamak nuclear fusion experimental device developed by China at the Hefei Research Institute of the Chinese Academy of Sciences successfully achieved a record of 101 seconds of continuous operation at 120 million degrees Celsius, and broke the world record. Compared with the previous record in South Korea, China has time has been directly extended by 5 times, and it seems that we are one step closer to the practical stage of artificial sun.
The success of nuclear fusion technology will lead to the development of lithium battery.
Q: Now, whether it is a mobile phone or other equipment, lithium batteries are generally used. How long will the lithium battery be charged for the first time to activate the lithium battery?
A: The maintenance of lithium batteries has always been a controversial issue on the Internet. There are indeed some rechargeable batteries that require similar "activation" work. This is the earlier nickel-cadmium rechargeable battery and nickel-metal hydride rechargeable battery. These batteries will produce a phenomenon known as the "memory effect". Charging in an incomplete discharge state will easily overcharge the battery. Over time, crystals will grow on the electrode plates, blocking the contact between the electrolyte and the electrode plates. Causing the battery's voltage to drop, making the user feel that the battery will be used up soon. So for both types of batteries, periodically (rather than every time) fully discharging and recharging the battery can mitigate the voltage drop caused by the above reasons.
However, most of the batteries used in our mobile phones and laptops are Li-ion batteries. Lithium-ion batteries can store a lot of energy despite their small size, so they are more and more widely used. Lithium-ion batteries do not need to be activated by deep charging and discharging at the beginning of use because the initialization and testing process of the battery is already completed when the battery is manufactured. Lithium-ion batteries also have no so-called "memory effect" and can be recharged at any time.  The suggestion that a full charge and discharge of a lithium-ion battery be periodically recharged is only for the purpose of calibrating the charge detection devices on laptops and some high-end smartphones, not for any benefit to the battery itself. For devices such as ordinary mobile phones and digital cameras that display the approximate battery level in segments, there is no need to fully charge and discharge them regularly.
What? Some mobile phone manuals also say so? You should know that the battery of a mobile phone is generally not manufactured by the manufacturer of the mobile phone. This kind of writing on the manual may be to remind the user to test whether there is any problem with the battery. In addition, since nickel-cadmium and nickel-metal hydride batteries do need to be activated, this kind of writing on the manual may also be caused by copying the template.
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At present, international supply chains were shocked, and logistics and transportation efficiency decreases. Geopolitical conflicts further aggravate uncertainties about the European and American economic recovery and the global commodity supply. For this reason, I assume the price of the lithium battery would not decrease significantly in the short term.
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