Lithium-ion batteries will degrade over time, which is annoying for you and me, but it is very convenient for smartphone manufacturers, who are very eager to sell you a new battery every two years. However, you can take care of the battery in various ways to make it last longer, and this advice is not limited to your phone.
A team from the University of Michigan, Ann Arbor, "read dozens of academic papers and manufacturer manuals" and laid out a list of best practices for protecting the life of lithium-ion batteries as long as possible. Almost every component of a battery will degrade over time, including the anode, cathode, electrolyte, separator, and current collector. In a new study, the research team identified several major factors that lead to battery degradation, all of which can be avoided.
First, avoid exposure to high and low temperatures, especially during charging. If your phone feels hot on the charger, remove it. Likewise, avoid charging in very cold conditions. Extreme temperature "can accelerate the degradation of almost every battery component." Therefore, some electric car manufacturers recommend plugging in the car on hot days so that the battery cooling system can operate. As a guide, if the temperature exceeds the range of 50-95° F (10-35° C), please try not to charge.
Secondly, the battery hates being too full or space. Ideally, you would never let them charge more than 80% or discharge less than 20%, because outside the range of 80-20%, no matter which side, lithium-ion batteries will be stressed and degraded. If you need the durability of a fully charged battery, please continue with a full charge, but once the charger reaches 100%, please remove the device from the charger immediately. This means that charging your phone overnight and leaving a seldom-used battery on the charger is bad news, so find a convenient and friendly charging procedure.
Third, if possible, avoid fast charging and unloading. Fast chargers may seem convenient, but high current heats and degrades batteries faster than slow trickle charging. The same is true for high emission rates: in the vehicle world, power-hungry applications and full throttle operation are not good for your battery and will shorten battery life. If possible, grab an old-school, 1A slow charger phone and use it unless you really need a fast top-up.
Finally, avoid using or storing lithium-ion batteries in humid environments, and "avoid mechanical damage such as punctures", which seems pretty self-explanatory.
In short, pay attention to the temperature, charge and discharge slowly, don't leave the battery on the charger, and try not to exceed 80% or less than 20% unless you need it. Not only does the battery have a longer service life, you also don't have to change the battery frequently, which is of great benefit to the planet in many ways.