Correct use of lithium battery

Lithium battery is an energy storage conversion device that is more and more widely used. Because of its excellent electrochemical performance, it realizes a market application scenario of small - medium - large, which keeps pace with the times. When we talk about the correct use of lithium battery, we usually refer to small applications, that is, consumer electronics, such as smart phones and laptops. Because large and medium-sized applications are based on small application technology, small applications have common characteristics, while large and medium-sized applications are much more complex. Generally, medium-sized applications are on new energy vehicles, which are generally called power batteries; Large scale applications are usually on base stations, which are generally called energy storage batteries. Therefore, when we talk about the "use method of lithium battery", it is in line with people‘s habitual understanding to limit lithium battery to small application fields.

The working principle of lithium battery is nothing more than charging to reserve energy, discharging into other energy and releasing it. It is idle when it is neither charged nor discharged. Therefore, the correct use of lithium battery has three aspects: correct charging, correct discharge and correct maintenance.

Correct charging method of lithium battery

Grasp the time and prevent overcharge. Do the right thing at the right time. Although lithium battery itself has excellent electrochemical performance, any thing that deviates from the equilibrium state will have potential safety hazards. In detail,

1. When charging, charge. In the early stage of the emergence of smart phones, each mobile phone manufacturer, out of the original intention of protecting their own interests, often emphasized the use of original chargers (including charging lines) to charge electric equipment. Some manufacturers designed special data lines and did not support other chargers (including charging lines). Later, with the more and more extensive application of smart phones and laptops, it is obviously self binding to go on like this, so now we have basically unified the standard, and a charger / line can charge electric appliances of different brands and properties. Charging is convenient. One problem 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, the mobile phone and laptop will have a reminder. At this time, you need to replenish the power in time. Although the low power will not lead to direct safety accidents, overuse will damage the battery structure over time.

2. Just fill it up. The lithium battery cell is also composed of many components. The new battery is OK. If it is used for a long time, the function of any component may decline, so there will be overcharge safety risk. Several typical accidents exposed by Samsung and apple were caused by the owner of the appliance putting his mobile phone at the head of the bed to charge while sleeping, which eventually led to combustion and explosion.

3. Never use two things at once. The author has experienced that while charging and using the mobile phone, especially when playing games, it is very easy to feel that the mobile phone is hot. The reason is also very simple. The mobile phone is equal to working two jobs at the same time, which makes it have to pay more than twice the labor force, and the body will naturally get hot.

Correct discharge method of lithium battery

Charge in time to prevent over discharge. Ordinary mobile phone users are not aware of the harm of over release, because there are usually no reports of safety accidents. Moreover, some people even think that regular deep discharge is good for the maintenance of battery performance. In fact, it is not, because the memory effect of lithium battery is negligible, and there is no saying that deep discharge eliminates the memory effect. Theoretically, the total cycle life of lithium battery with deep discharge will be greater, but the risk is that excessive discharge of the battery will lead to low battery voltage and can not be charged normally. Sometimes it will take a long time to start up, or even fail to start up. The lesser of the two evils is the right. A shorter service life is better than not being able to use it. Therefore, we advise the majority of mobile phone and laptop users not to often use the black screen.

Correct maintenance of lithium battery

The temperature is suitable to prevent cold and heat. When the lithium battery is idle, there is usually no safety accident. The purpose of daily maintenance is to put the lithium battery in a suitable environment, so as to delay the aging of the battery. In fact, one of the parameters of lithium battery design is the appropriate temperature. Relatively speaking, it is not a problem if the temperature is low, but if it is placed at a higher temperature, as the saying goes, when things reach the extreme, they will turn against each other, which will also produce safety problems. We are talking about the idle state only in terms of the normal environment. If you put the lithium battery in water or close to the fire source, it will be out of the topic of "maintenance". Then, what should you do in the normal environment? Moisture proof in water and sun proof in heat. Therefore, the suitable environment for daily maintenance of lithium batteries should be four words: ventilation and shade. These four words should be followed whether the lithium battery is idle independently or ready for use in electrical appliances.

Among the correct use methods of lithium battery, the charging method of lithium battery is the most important, because the incorrect charging method will cause safety problems, and the discharge and daily maintenance only affect the service life of lithium battery. Lithium battery itself is also a consumable. No matter what method we take, we can‘t avoid its final loss, but we use the correct method, Just delaying its aging.