How to use ternary lithium ion battery
In the use of ternary lithium-ion batteries, it should be noted that after the battery is placed for a period of time, it enters a sleep state. At this time, the capacity is lower than the normal value, and the use time is also shortened. However, the lithium battery is easy to activate, as long as the battery is activated after 3 to 5 normal charge and discharge cycles, and the normal capacity is restored. Due to the characteristics of the lithium battery itself, it is determined that it has almost no memory effect. Therefore, the new lithium battery in the user's mobile phone does not require special methods and equipment during the activation process. Not only in theory, but for the "activation" problem of lithium batteries, many claims are: charging time must be more than 12 hours, repeated three times in order to activate the battery. This statement that "the first three charges have to be charged for more than 12 hours" is obviously a continuation of nickel batteries (such as nickel cadmium and nickel hydride). So this kind of statement can be said to be misinformation at the beginning. The charge and discharge characteristics of lithium and nickel batteries are very different. All serious official technical data emphasizes that overcharge and overdischarge can cause huge damage to lithium batteries, especially liquid lithium ion batteries. Therefore, charging is preferably done in accordance with standard time and standard methods, especially for ultra-long charging of more than 12 hours. Usually, the charging method described in the mobile phone manual is a standard charging method suitable for the mobile phone.
In addition, the mobile phone or charger of the ternary lithium-ion battery will automatically stop charging after the battery is fully charged, and there is no so-called “turbulent” charging that the nickel battery charger has for 10 hours. That is to say, if the lithium battery is fully charged, it is also white charger on the charger. As mentioned earlier, lithium batteries are very delicate, and they are much less resistant to fluctuations in charge and discharge than nickel, which in turn poses additional risks. In addition, another aspect that cannot be ignored is that lithium batteries are also not suitable for over-discharge, and over-discharge is also disadvantageous for lithium batteries. This leads to the following problem.
According to the standard time and program charging, even the first three times should be done; when the mobile phone low battery prompts, you should start charging as soon as possible; the activation of the ternary lithium-ion battery does not require a special method, the phone is used normally. The medium lithium battery will naturally activate.
In fact, lithium iron phosphate lithium-ion batteries do not have much attention to use, in other words, it is not too much to consider. How many times a battery can be used, the difference is more from the individual differences in the manufacture of the battery itself, rather than the method of use. In addition to its own battery quality, the life of the battery itself is limited. Once the battery is off the production line, its life begins to pass. Lithium batteries last for only two to three years, whether you use them or not. One of the important reasons for the decline in battery capacity is the increase in internal resistance due to oxidation. Finally, the lithium iron phosphate lithium ion battery cell resistance will reach a certain point. Although the battery is fully charged, the battery cannot release the stored electricity. Many people think that the first use of lithium batteries should be charged for more than 16 hours, so that the battery can be fully activated. In fact, this is not based on this. This is just the charging method of nickel-hydrogen or nickel-cadmium batteries that were popular in the past. For lithium-ion batteries. Not applicable. Because this lithium polymer-based battery has no memory effect in theory, even if it is, it is completely negligible. So it only takes about 3 hours to rush. If the display is completed and you don't need an external power supply, you can unplug it and you don't have to wait for such a long time.
In fact, the maintenance of lithium manganese oxide lithium battery has been a hot topic for notebook users, but in fact there are many misunderstandings. In the final analysis, it comes from two aspects. One is that "the mind has not kept up with the transition from nickel-metal hydride batteries to lithium batteries." "The other one is more funny, it is from a mobile phone, because the mobile phone is actually the device that most users first come into contact with using rechargeable batteries.
Frequent deep charge and discharge: Lithium batteries have almost no memory. Many people like to use the lithium battery or lithium battery digital products, they like to use the power to a little (protection board protection) and then charge, and in many people's eyes, this It is also a way to activate the battery. In the use of a lithium battery, the case of recharging the used power is called deep charging and discharging.
In fact, deep charge and discharge is a major misunderstanding when many people use lithium batteries. Scientists have concluded through experiments that the number of deep charge and discharge is proportional to the battery life in the case of other environmental conditions, and multiple charge and discharge. Will cause the battery life to end prematurely. A lithium battery that has a long service life is extremely likely to cause a battery bulge, which may cause an explosion.
Overcharge and discharge and excessive charge and discharge current: This situation often occurs when the protection board is not designed properly and is charged. It is often preferred to charge the device for a while after the battery is fully charged, so that the device can resist longer. Some, but what many people don't know is that long-term overcharging and over-discharging will cause serious damage and damage to the performance of lithium batteries. Seriously, it will cause extreme conditions such as explosions, so the battery is full of electricity, if Always plugged into the charger, sooner or later it will lead to tragedy.
During charging and discharging, the current of the charger and the general current load of the electric appliance are within the specified range. Excessive current load is likely to cause internal short circuit of the battery, thereby destroying lithium ions and causing safety hazard of the circuit. For the same reason, the same is true for the charging charger voltage. Therefore, we should also pay attention to see if the charger is qualified when using the charger.
working environment. Lithium batteries are extremely sensitive to temperature. If they are used below freezing point for a long time, they may have a great impact on the battery life. Long-term exposure to overheated environment will greatly reduce the life of the battery. Seriously, the internal pressure will increase and cause an explosion. Even if there is no explosion, the lithium manganese oxide lithium battery will be quickly scrapped in high heat. I feel that there are some cases. Because the pool explosion was unfortunately killed, most of the reason was caused by the high temperature of its working environment.