Method 1 for repairing lithium-ion batteries: Over time, the metal surface of lithium-ion batteries will oxidize to a certain extent, which will lead to poor contact between the battery and the phone, and shorten the battery's lifespan. You can use an eraser or other cleaning tools to wipe away the rust on the surface and improve the contact between the battery and the phone.
Method Two for Repairing Lithium-ion Batteries: Low temperatures can alter the electrolyte inside a lithium-ion battery, promoting a chemical reaction in a battery that has just been frozen. The use of a lithium-ion battery is essentially a charging and discharging process. During this process, negative and positive charges collide with each other. Batteries become less durable because at normal room temperature, the kinetic energy inside electrons is relatively high, making the battery more active and prone to leakage. Placing a lithium-ion battery in a low-temperature environment significantly changes the microstructure of the lithium film and electrolyte on the battery surface, as well as their interfaces, leading to temporary inactivity inside the battery and reduced leakage current. Therefore, after recharging, the phone's standby time will increase.
Method 3 for repairing lithium-ion batteries: Deep discharge of the phone. This involves completely depleting the internal energy to achieve a deeper recharge, which requires unconventional methods. Connect the phone to a 1.5V light bulb. The energy inside the lithium-ion battery will be transferred to the bulb until it is completely discharged. The phone will slowly deplete its energy using a lower voltage. Normally, if the voltage drops below the rated 3.6V after being connected to the power source, the phone will automatically shut down. After being fully discharged, the recharged battery can be used for a longer period.
Method 4 for repairing lithium-ion batteries: Gently wipe the metal contacts on the lithium-ion battery and the phone with a clean eraser or other cleaning tool. This will help with charging and extend battery life.
It's worth noting that lithium-ion batteries aren't actually that expensive. Instead of going through the trouble of repairing a lithium-ion battery, it's more convenient and cost-effective to just buy a new one. Furthermore, developing good usage habits is also a shortcut to extending the lifespan of your lithium-ion batteries.
