The shell of lithium-ion batteries has two important types: steel shell and aluminum shell:Steel shellIn the early days, most square lithium-ion batteries were made of steel shells, which were mostly used for mobile phone batteries. Later, due to the low weight to energy ratio and poor safety of ste...

1. Regular inspectionDuring the use of lithium-ion battery UPS, it is necessary to regularly inspect the battery. Check the terminal voltage and internal resistance of the battery pack. Charge the batteries of each unit evenly to restore the internal resistance of the battery and eliminate the termi...

What is a lithium-ion battery protection board?Lithium ion battery protection board, as the name suggests, is used to protect lithium-ion batteries. The lithium-ion battery protection board is designed to prevent overcharging, over discharging, overcurrent protection, short circuits, and other issue...

1. To prevent excessive discharge of lithium-ion batteries in mobile phones, try not to use the phone below 20% of the battery level, especially not below 5% of the battery level, as it may cause irreversible damage to the battery.The most ideal state for lithium-ion batteries is when there is still...

Misconception 1: To activate the phone battery for the first time charging?Firstly, there is a problem with this statement itself. Imagine that the phone and mobile power source you purchased have not been activated yet. So why do all the things you bought have electricity? That's because it was...

In winter, the range of lithium-ion batteries in electric vehicles will decrease, which is mainly due to several reasons. Firstly, there is a certain relationship with the internal electrodes and electrolytes of the battery. As for the power lithium-ion battery of electric vehicles, when the tempera...

Lithium ion batteries are a common item in our daily lives, and they are also prone to some minor faults, such as low battery capacity, high internal resistance, excessive thickness, abnormal battery formation, battery explosion, battery short circuit, battery open circuit, etc. So, what are the rea...

The charging and discharging cycle life of ternary lithium-ion batteries can generally reach 500-2000 times. The important impact of materials and technology on the charging and discharging cycle life is still significant. With the increasing maturity of ternary lithium-ion battery technology, some...

Cause of failure(1) Gluing and punching;(2) Leakage phenomenon;(3) The transition rod of the adhesive tape is not flexible;Maintenance methods(1) Loosen the screws of the adhesive fixing plate and lift it up a bit during the feeding process, so that it touches the center of the battery cell as much...

Cause of failure(1) Whether the rolling needles are concentric;(2) The rolling needle is not perpendicular to the substrate;(3) The electrode guide plate is not perpendicular or parallel to the substrate;(4) The final transition roller of the polarizer is not perpendicular to the substrate;(5) The i...