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What is the difference between fast charging lithium battery and ordinary lithium battery
568 2024-08-05
Fast charge lithium battery and ordinary lithium battery safety competition!
Fast charging lithium batteries generate more heat during the fast charging process, which requires higher requirements for thermal management systems. If the thermal management is not good, it can easily lead to local overheating and increase safety risks. Ordinary lithium batteries produce relatively little heat when charging, and the thermal management pressure is small.
?1, electrode material bearing capacity
The electrode material of the fast charging lithium battery needs to be able to withstand greater current and more frequent lithium ion insertion and removal, otherwise it may cause structural damage and cause internal short circuit. The electrode materials of ordinary lithium batteries have relatively low requirements in this regard.
?2, battery internal resistance
Fast charging lithium batteries usually have low internal resistance to accommodate high current charging. However, too low internal resistance may lead to excessive current in some abnormal circumstances, increasing safety risks. The internal resistance of ordinary lithium batteries is relatively high, and the current change is relatively stable.
?3. Protect the circuit
Due to the charging characteristics of fast-charging lithium batteries, their protection circuits need to be more sensitive and efficient, and can respond to abnormal situations such as overcharge, overdischarge, and heat in a timely manner. The protection circuit of ordinary lithium batteries is relatively simple.
?4. Aging speed
Fast charging will accelerate the aging of lithium batteries, and frequent fast charging for a long time may reduce battery performance and increase safety risks. Under normal charging mode, the battery aging speed is relatively slow.
?It should be noted that whether it is a fast-charging lithium battery or an ordinary lithium battery, as long as it meets the relevant standards and specifications and is produced under the correct conditions of use, safety can be guaranteed to a certain extent.
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