Lithium battery discharge what little knowledge need to pay attention to?

Source: 2020 - 03 - 26 hits: men of lithium iron phosphate battery tips, winter can improve the low temperature performance. What are the little knowledge of lithium battery discharge demand control? Theoretically, the lithium battery discharge point is to find the influencing factors of lithium battery discharge. So, lithium battery charge and discharge control which should be common sense? Power saving small make up about. Lithium battery discharge what little knowledge need to pay attention to? At the beginning of the charging voltage should be tested for rechargeable batteries. If the voltage is lower than 3 v, should first stop charging. 1/10 of the charging current for the set current. After rising voltage to 3 v, in the process of charging standard. Standard charging process is: set stop constant-current charging current, when the lithium battery voltage up to 4. 20 v, to constant voltage charging, charging voltage is 4. 20v。 The charging current gradually decreases, and when current to set up 1/10 of the charging current, charging is complete. Lithium battery charging current general set at zero. Between 2 c and 1 c. The faster the current, the greater the charge, the battery heat. In addition, with the need of inside the battery electrochemistry reaction, charging current is too large, lack of capacity. Like a beer, too fast will produce bubbles, lead to dissatisfaction. 1. Discharge current shoulds not be too large, otherwise it will cause fever, lithium-ion batteries to cause permanent damage. 2, can't discharge, the most afraid of lithium-ion batteries discharge, once the discharge voltage is lower than 2. 7 v, can lead to dead batteries; 3, to prevent frequent deep cycles: lithium battery no memory, a lot of people in the use of digital products lithium trams or lithium, love using power no longer leave ( Maintenance board maintenance) And then, in the eyes of many people, this is also a method to activate the battery; 4. On a charge and discharge, the charger of electric current and electric current load requirements within the prescribed scope: easy to cause the battery internal short circuit current load is too high, thus damaged lithium-ion, cause electrical safety; 5, about the temperature of the lithium battery is very sensitive, if in use for a long time below freezing, may pose great influence and harm to the life of the battery. Overheating and for a long time in the environment, will greatly reduce the service life of the battery, serious internal pressure increase caused by explosion, even if they failed to explode, battery at high temperatures will soon become obsolete. Lithium battery charge and discharge requirements: lithium battery: according to the structure characteristics of lithium batteries, the largest stop charging voltage is 4. 2 v, cannot excessive charging, or the battery will failure because of the lithium ion from the positive to take too much. The charging and discharging begged is higher, can use special constant current, constant voltage charger intermittent. Constant current charging is in commonly 4. After 2 v/node into a constant voltage charging. When constant voltage charging current dropped to 100 ma, should be intermittent charging. Charging current ( mA) = 0. 1 ~ 1. Five times the battery capacity ( Such as the 1350 mah battery, charging current can be controlled between 135 ~ 2025 ma) 。 Conventional charging current can choose about 0. Five times the battery capacity, charging time is about 2 - 3 hours. Lithium battery discharge: due to the internal structure of the lithium-ion batteries, lithium ion in the process of discharge can't all to move to the anode. Keep some lithium ion on the cathode is necessary, to ensure that in the next time rechargeable lithium ion embedded channel. Otherwise, the battery life will be shortened accordingly. In order to ensure that local lithium ion of graphite layer after discharge, it is necessary to strictly limit the minimum voltage discharge end, namely the lithium battery can't discharge. Discharging termination voltage is commonly 3. 0 v/node, the lowest shall not be less than 2. 5 v/node. The length of the battery discharge time related to lithium battery capacity and discharge current. The battery discharge time ( Hours) = battery capacity/discharge current. Lithium battery discharge current ( mA) Should not be more than three times as many battery capacity. ( Such as the 1000 mah battery, strictly control the discharge current within 3 a) Otherwise it will damage the battery.