Author ：Iflowpower – Portable Power Station Supplier
Lithium-ion battery manufacturers to analyze electric vehicle lithium-ion battery charging hot. The charger will have a lot of fever during the charging of lithium-ion batteries in electric vehicles. Electric car lithium ion battery will be charged, hot, sometimes battery charger does not turn.
What is the reason why it is formed? How to deal with it? This paper is to answer your questions. When the electric vehicle lithium-ion battery charges, the electric vehicle is charged. The lithium-ion battery will have a chemical reaction.
There is current flow, according to the Joule Law: heat = the square of the current by resistance, because there is current flow over the battery Internal resistance, will definitely appear heat, so a little fine is normal, but if it is very hot, it is not normal. There are two cases of electric vehicle lithium-ion batteries, one is to discharge heat, the other is charging heat. Heat heat during charging of lithium-ion battery electric vehicles, there is a possible failure reason: battery itself, the battery is aging, the internal resistance is large, the electrolyte is dry, the internal short circuit is caused by heat generation.
The reason for discharge generation is important: the discharge is too fast, it is possible to be small in the lithium-ion battery capacity, and the discharge current is more than 0.5c. 1.
Lack of electrolytes If the electrolyte is lacking the electrolytic solution, it will affect the electrochemical reaction of the lithium ion battery. When the lithium-ion battery is normal, it is easy to heat, even deform, and stop service life in advance. To this end, a new electrolytic solution can be selected for maintenance, generally selecting a high-purity dilute sulfuric acid having a ratio of 1.
05 because impurities contained in the electrolyte can cause short circuits such as iron and copper. 2. Hybrid charger Due to the electric car, many home users have more than two electric vehicles, and some users for convenient, frequent chargers, 48V, if the 60V electric vehicle lithium-ion battery charger, because the voltage does not match, It will cause the battery temperature to rise, in addition, the mixture of chargers is very risky, will directly be responsible for poor electric vehicles.
Therefore, advocate special automotive chargers. 3. Lithium-ion battery aging and damage over time, the lithium-ion battery has been used for a long time, due to various causes or damage, this time does not save batteries, requiring to replace the battery, otherwise there will be risk.
4. Single battery short circuit If a single lithium ion battery is short, the battery temperature will be too high when charging. In this regard, the correct way is to use the multimeter to detect the problem of lithium-ion batteries.
You can choose to change a single battery. Of course, the premise is the performance of the battery, or to replace the entire battery. How does electric vehicle lithium-ion batteries maintenance maintenance? Don't charge under the sun, there is also all electric car lithium-ion batteries to charge, the charging time is not too long, don't have more than twelve hours, the charging attention is dissipated, and the discharge depth follows the life.
A big relationship is how much electricity in your battery, which is why you charge your charge. In the process of use, if the mileage of electric vehicles suddenly drops more than ten kilometers in a short period of time, it is likely to be short-circuited in the battery pack. At this point, you should check, repair or group in time to professional battery repair mechanism.
This can relatively extend the life of the battery pack to maximize expenditure. Pay attention to the quality of the lithium-ion battery charger, so as not to affect electric vehicle maintenance and battery combustion has a certain effect. Prevent high temperature exposure.
Environmentally high temperature will increase the internal pressure of electric vehicle lithium ion battery to cause the battery limit valve to be automatically opened. Direct consequence is the water loss of the new battery, and the battery excessive water will inevitably trigger battery activity decreased, accelerate The plate is softened, and the housing fever, the housing drums, deformation, etc.
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