Analysis the advantages and disadvantages of lithium-ion batteries

Source: 2020 - 03 - That hits: 30 lithium-ion battery as one of the rechargeable battery, has the advantages of large energy density, currently has been widely used in electronic products. ( 1) Some early rechargeable batteries, such as nickel cadmium battery, with memory effects. If power unused began charging, then the next discharge to the place, cannot lay down, resulting in a decline in battery capacity; If the battery is not at the beginning of the discharge is full, so the next time charge to the place, can't charge, can also lead to lower capacity. Therefore, use a battery memory effect, such as nickel cadmium battery, the best way is in recharging after using it. Lithium batteries would not have this effect. On the contrary, if lithium battery overcharge, will harm the lithium battery capacity. So, don't need to be full of lithium-ion batteries. ( 2) Lithium battery overcharge or overdischarge, are extremely harmful. If the overcharge, permanent damage to the capacity of lithium-ion batteries; After charging, is in danger of blasting. But for lithium battery equipment charging at night is not dangerous, because it would, of course, when charged to stop charging, and are likely to be current to minimize ( To make up for the night of a small amount of power consumption) 。 In fact, I often do myself the $10 18650 lithium ion battery has a built-in maintenance panel, I believe I will have on your mobile phone. If over discharge, lithium battery will not charge into electrical energy, has no direct use, need special activation; Once again, will be fully 'starvation', completely unable to use. Uniformity as lithium battery itself must, therefore, long-term storage lithium battery equipment before it is necessary to guarantee the equipment must have power, so as to avoid battery hungry; Each in due time, also want to check whether you need to charge. ( 3) Lithium battery life and charging current (indeed Or the charging rate) The relevant. Therefore, it can be said that the life of lithium-ion batteries and power supply. Based on the rapid charging, in general, the service life of lithium batteries will be lower. But, as long as the current is not more than 1 hour of overflow traffic, charging rate is not significant influence on life. With charging treasure, computer USB charging, single-minded 'problem' is the power supply current is relatively small, charging is very slow; In terms of battery life, without any damage. In addition to poor charger, the device does not need to pick up charging power supply, not like before every mobile phone batteries need to assign a dedicated charger. The slower charging current will protect the battery. ( 4) The optimal operating temperature of lithium-ion batteries for room temperature. At high temperatures using lithium ion battery and charging may be stored for a long time, so as to permanently reduce the battery capacity. In the low temperature ( < 0℃) Next to the lithium battery can be permanent dangerous, but only at low temperature, the capacity of lithium-ion batteries will be temporarily down, and will resume after the return to normal temperature. Stored in low temperature lithium battery is ok, but under the low temperature storage time not too long.