The larger the capacity of electric vehicle lithium battery means the more electric energy stored in the lithium battery. Nowadays, the share of electric car lithium battery in the market is increasing with its advantages of high energy density, small size, light weight and long life, incorrect charging and discharging conditions or methods will be more likely to damage the lithium battery and reduce the life of the lithium battery.
Electric vehicle lithium battery capacity discharge process
A, electric car lithium battery in the initial stage of the terminal voltage drops rapidly, the greater the discharge rate, the faster the voltage drop.
Second, the electric car lithium battery voltage into a slowly changing stage, this time is called the battery platform area, the smaller the discharge rate, the longer the platform area, the higher the platform voltage, the slower the voltage drop. In the actual use of lithium-ion batteries, as far as possible, hope that the lithium battery work in the platform area.
Third, when the lithium battery is close to discharge, the lithium battery load voltage begins to drop sharply until it reaches the discharge cut-off voltage. From the results of the capacity test, the relationship between the discharge current and the capacity curve can also be obtained at the same time.
The relationship between different discharge currents and capacity of lithium batteries for electric vehicles, the size of the lithium battery discharge current will directly affect the actual capacity of the battery. The higher the discharge current, the corresponding decrease in battery capacity, which indicates that the higher the discharge current, the shorter the time experienced to reach the termination voltage. So when it comes to the battery capacity, the discharge current (discharge rate) should be specified.
Electric vehicle lithium battery charging and discharging experience
The most important tips for the charging and discharging of the lithium battery in use are
1、Charging according to the standard time and procedure on the electric car lithium battery manual, even for the first few times.
2, when there is an electric car found that the power is too low tips, you should try to start charging the electric car lithium battery in time.
3, according to experts in the electric car lithium battery wholesale market lithium battery activation does not require a special method, in the normal use of the electric car lithium battery will naturally activate. If you insist on the claim that the first use is full for 12 hours, it is actually not scientific.
4, must be charged with the appropriate lithium battery charger, first the charger output plug corresponding to insert the battery charging socket, and then the charger plug into the utility jack, observe the indicator for charging determination. If the charger is lost or damaged, please find the appropriate dealer to buy. Do not use lead-acid chargers or other forms of chargers for charging.
5、To partially discharge the electric car lithium-ion battery, should not be over-discharged, and to avoid frequent complete discharge. Over-discharge may bring disastrous consequences to the battery, especially high current over-discharge, or repeatedly over-discharge the battery is particularly affected.
6, long-term overcharge and over discharge situation will produce serious damage and destruction to the performance of lithium batteries, serious will cause an explosion and other extreme cases, so the battery is fully charged, if it has been plugged into the charger, sooner or later is a tragedy.
Because lithium-ion batteries have a high energy ratio, so to control the battery can not be overcharged, overdischarged phenomenon. Over-discharge will lead to difficulties in the recovery of the active material, if then directly into the fast charge mode (high current), which will damage the battery, affecting the service life incidentally may bring hidden dangers. Although the current lithium-ion battery in the application are with a protection plate, under normal circumstances, the chances of over discharge will be small, but no more accurate protection, in the following cases may still bring the hidden danger of over discharge.
Electric car lithium battery charging time should not be too long: do not be mistaken that the longer the electric car battery charging time the more power, generally to the charger to change the light after the extension within the best long time.
If you have any demands on batteries, please feel free to send an email to: info@manlybattery.com
