Lithium battery is a kind of energy storage conversion device that is more and more widely used, because its excellent electrochemical performance realizes a small-, medium-, and large-scale market application scenario that keeps pace with the times. When we talk about lithium-ion batteries, When used correctly, it usually refers to small applications, that is, consumer electronics, such as smartphones and laptops. Because large and medium-sized applications are based on small-scale application technology, small-scale applications have common characteristics, and large- and medium-sized applications are much more complicated. Generally, medium-sized applications are on new energy vehicles, which we generally call power batteries; large-scale applications are usually Above the base station, we generally call it energy storage battery. So when we talk about the "method of using lithium batteries", limiting lithium batteries to small application areas is in line with people's customary understanding.
The working principle of a lithium battery is nothing more than charging to store energy, and discharging is converted into other energy and released. It is in an idle state when it is neither charged nor discharged. Therefore, there are three major aspects of the correct use of lithium batteries: correct charging, correct discharge, and proper maintenance.
Correct charging method for lithium battery
Grasp the time to prevent overcharging. Doing the right thing at the right time, although lithium batteries have excellent electrochemical performance, however, there is a safety hazard when any kind of thing deviates from the equilibrium state. To elaborate, 1. Charge when charging. In the early days of the emergence of smart phones, each mobile phone manufacturer, for the purpose of protecting its own interests, often emphasized the use of original chargers (including charging cables) to charge electrical equipment. Some manufacturers designed special data cables and did not support other Charger (including charging cable). Later, as smartphones and laptops became more and more widely used, it became obvious that they would be self-bound, so now everyone has basically unified the standard, and a charger / line can charge different brands and properties of electrical appliances. Charging is convenient, and one of the issues that users should pay attention to is to keep the battery with normal power at any time. Under normal circumstances, when the power is too low, both the mobile phone and the laptop will be reminded. At this time, you need to replenish the power in time. Although the low power will not cause a direct safety accident, but excessive use will cause damage to the battery structure over time. .
2. Just fill it up. Lithium battery cells are also composed of many components. The new battery is fine. If it takes a long time, maybe the function of the component will decline, so the risk of overcharge safety will occur. Several of the typical accidents that Samsung and Apple were exposed to were caused by the owner of the appliance charging the phone on the bed while it was sleeping, which eventually caused a fire and explosion.
3. Don't use both. The author has experienced that while using the mobile phone while charging, it is very easy to feel the mobile phone feel hot when playing games, the reason is very simple, the mobile phone is equivalent to two jobs at the same time, which makes it necessary to pay more than double labor, the body will naturally heat up Already.
How to properly discharge lithium batteries
Charge in time to prevent over-discharge. Ordinary mobile phone users are not aware of the dangers of over-discharge, because usually there are no reports of security incidents. Moreover, some people even think that regular deep discharge is good for battery performance maintenance. This is not true, because the memory effect of lithium batteries is negligible, and there is no such thing as deep discharge to eliminate the memory effect. Theoretically, the total cycle life of deep discharge of a lithium battery will be greater, but the risk is that excessive discharge of the battery will cause the battery voltage to be too low to charge properly, and sometimes it will take a long time to start up, or even turn off the machine. The two evils are the least important, and a shorter service life is better than not being able to use it, so users of mobile phones and laptops are advised not to use black screens often.