How is the fast charging technology for lithium-ion batteries achieved?

How is the fast charging technology for lithium-ion batteries achieved?

Do you know about fast charging technology for lithium-ion batteries? In the highly developed world of science and technology, various high-tech technologies have emerged in our lives, bringing convenience to our lives. Do you know that these high-tech technologies may contain fast charging of lithium-ion batteries?

Lithium ion batteries are divided into two types of data: positive and negative. We often refer to lithium iron phosphate, which actually refers to the positive electrode of lithium-ion batteries. Nowadays, thousands of laboratories around the world are attempting to develop better performing lithium-ion batteries. In fact, we just want to find some positive electrode data with better functionality, larger capacity, longer lifespan, and better charging and discharging capabilities, or do work on the negative electrode. We usually use graphite as the negative electrode data for lithium-ion batteries, but in recent years, a new negative electrode data has also emerged, namely lithium titanate. In fact, under current fast charging technology, the 0-100% charging time is approximately 1 hour and 10 minutes, due to the process of trickle charging. Some people charge their phones for less than half an hour, so they believe that fast charging is useless. Some people think that they are plugged in all day long, so fast charging is useless. Charging and discharging are the mutual conversion of electrical and chemical energy, and during the positive and negative electrode movement of lithium ions, they also become different compounds. In an ideal state, as long as the chemical structure of the positive and negative electrode materials remains largely unchanged, the reversibility of battery charging and discharging is good, and lithium-ion batteries can ensure long-term cycling. 

With fast charging, everything has changed. Even if you forget to charge at night, resulting in low or even power outages, all you need to do is take a shower in the morning and get a satisfactory and safe battery before going out; When you are constantly running around outside, just connect the power to the dining space, and after wiping your mouth, you will find that it can safely support your needs for an afternoon; When you are running low on the high-speed rail and the old model doesn't have a socket, you just need to charge the waiting area for 10 minutes and let your phone support several hours of driving. So, fast charging is the practice of using fragmented smartphones.

When a lithium-ion battery is discharged, lithium ions run out of the negative electrode data and then run to the positive electrode. This process is actually a relatively brief end, which means that the discharge power of a lithium-ion battery can be very high. However, traditionally, power is not that short. From your positive information, when encountering cathode materials, the process of charging lithium ions is relatively negative. Due to the rapid access of lithium ions to information, the structure of cathode materials, and other issues that damage the formation, the fast charging function of lithium-ion batteries generally has no benefits.

After the lithium battery runs out of power, the voltage decreases. When it falls below a certain value, the charger will use a relatively low current to pre charge the lithium battery, and some energy will be transferred to the inside of the battery. After a period of time, when the voltage of the lithium battery exceeds the predetermined value, it enters the second stage of high current constant current charging. At this time, the battery voltage will continue to rise, and when the charging stops, the voltage will slowly decrease.