Battery discharge multiplier and battery discharge current problem -Lithium - Ion Battery Equipment
Lithium -ion battery manufacturers interpret the problem of lithium ion battery discharge multiplied and lithium -ion battery discharge current. In the battery market, with the rise of lithium -ion batteries, a large number of equipment has been replaced with lithium -ion batteries. For traditional batteries, the lithium -ion battery has the characteristics of complete charging, high capacity, high energy saving and environmental protection, light weight, and no memory effect. When buying, be sure to know the problem of lithium -ion battery discharge and lithium -ion battery discharge current. The following lithium -ion battery manufacturers will interpret it for everyone.(Lithium - Ion Battery Equipment)
Lithium -ion battery discharge power
The capacity of each battery is a certain amount within one time. The battery discharge multiplier means that the discharge is several times the conventional discharge compared with the conventional discharge. The energy that can be released in different currents, generally speaking, the battery cells must test the discharge performance in different constant current conditions.
The charging and discharge percentage performance of the lithium ion battery is directly related to the migration capacity of lithium ions in positive and negative poles, electrolytes, and the interface between them. All factors affecting the speed of lithium ion migration will affect the charging and discharge multiplied rate of lithium -ion battery performance. In addition, the heat dissipation rate inside the battery is also an important factor that affects the multiplier performance. If the heat dissipation rate is slow, the heat accumulated when the high rate is charged cannot be passed out, which will seriously affect the safety and life of lithium -ion batteries.
As the discharge multiplier increases, the lithium -ion battery continues to discharge capacity attenuation. The reason is that due to the severe polarization, the discharge voltage will be reduced to the discharge interception voltage in advance, that is, the discharge time is shortened, the discharge is not sufficient, and the negative polar Li+does not take off. Completely embedded. When the battery discharge rate is 1.5 to 3.0, the discharge capacity begins to show different degrees of recovery. Due to the continuous reaction, the temperature of the battery itself will increase significantly with the increase of the discharge multiplier. The LI+thermal motion capacity is strengthened and the diffusion speed is accelerated, so that the li+dedue speed will be accelerated and the discharge capacity will rise. From this, the dual effects of large discharge multipliers and the temperature rise of the battery itself have led to the uncomfortable phenomenon of the battery.
Lithium -ion battery discharge current
The discharge current is a current formed by the battery when the load is released. Due to the chemical characteristics of the battery itself, the battery voltage will gradually decrease during discharge. The longer the discharge current, the longer the discharge time; the larger the discharge current, the shorter the discharge time.
Generally, the charging current of lithium ion battery is set between 0.2C and 1C. The larger the current, the faster the charging, and the greater the battery heating. Moreover, too large current charging, the capacity is not full, because the electrochemical reactions inside the battery takes time.
Precautions for lithium ion battery discharge
1. The discharge current cannot be too large. Excessive current causes the internal heat of the battery, which may cause permanent damage;
2. Never discharge. Lithium -ion batteries are most afraid of discharge. Once the discharge voltage is lower than 2.7V, the battery may be scrapped.
Therefore, if there is no strict requirements for the size and weight of the battery, the discharge current can be increased by adding a new capacity. The discharge multiplier has a continuous discharge multiplication and a short -term discharge multiplier. The greater the rate, the higher the price, the higher the price, so some battery deficiency will also be higher, just like the battery deficiency standard with low discharge rate on the market, so new capacity will increase, so new capacity will increase to increase the capacity The discharge current is reliable than the newly discharged multiplier. The large -capacity battery can play for a long time without changing the battery, and the price of the battery cell with a relatively low discharge multiplier is not very high.
Lithium -ion battery discharge power
The capacity of each battery is a certain amount within one time. The battery discharge multiplier means that the discharge is several times the conventional discharge compared with the conventional discharge. The energy that can be released in different currents, generally speaking, the battery cells must test the discharge performance in different constant current conditions.
The charging and discharge percentage performance of the lithium ion battery is directly related to the migration capacity of lithium ions in positive and negative poles, electrolytes, and the interface between them. All factors affecting the speed of lithium ion migration will affect the charging and discharge multiplied rate of lithium -ion battery performance. In addition, the heat dissipation rate inside the battery is also an important factor that affects the multiplier performance. If the heat dissipation rate is slow, the heat accumulated when the high rate is charged cannot be passed out, which will seriously affect the safety and life of lithium -ion batteries.
As the discharge multiplier increases, the lithium -ion battery continues to discharge capacity attenuation. The reason is that due to the severe polarization, the discharge voltage will be reduced to the discharge interception voltage in advance, that is, the discharge time is shortened, the discharge is not sufficient, and the negative polar Li+does not take off. Completely embedded. When the battery discharge rate is 1.5 to 3.0, the discharge capacity begins to show different degrees of recovery. Due to the continuous reaction, the temperature of the battery itself will increase significantly with the increase of the discharge multiplier. The LI+thermal motion capacity is strengthened and the diffusion speed is accelerated, so that the li+dedue speed will be accelerated and the discharge capacity will rise. From this, the dual effects of large discharge multipliers and the temperature rise of the battery itself have led to the uncomfortable phenomenon of the battery.
Lithium -ion battery discharge current
The discharge current is a current formed by the battery when the load is released. Due to the chemical characteristics of the battery itself, the battery voltage will gradually decrease during discharge. The longer the discharge current, the longer the discharge time; the larger the discharge current, the shorter the discharge time.
Generally, the charging current of lithium ion battery is set between 0.2C and 1C. The larger the current, the faster the charging, and the greater the battery heating. Moreover, too large current charging, the capacity is not full, because the electrochemical reactions inside the battery takes time.
Precautions for lithium ion battery discharge
1. The discharge current cannot be too large. Excessive current causes the internal heat of the battery, which may cause permanent damage;
2. Never discharge. Lithium -ion batteries are most afraid of discharge. Once the discharge voltage is lower than 2.7V, the battery may be scrapped.
Therefore, if there is no strict requirements for the size and weight of the battery, the discharge current can be increased by adding a new capacity. The discharge multiplier has a continuous discharge multiplication and a short -term discharge multiplier. The greater the rate, the higher the price, the higher the price, so some battery deficiency will also be higher, just like the battery deficiency standard with low discharge rate on the market, so new capacity will increase, so new capacity will increase to increase the capacity The discharge current is reliable than the newly discharged multiplier. The large -capacity battery can play for a long time without changing the battery, and the price of the battery cell with a relatively low discharge multiplier is not very high.
