What are the advantages of lithium ion batteries? What shortcomings?

Lithium-ion batteries have the following advantages: 1) The operating voltage of the monomer battery is as high as 3.6-3.8V: 2) A larger than energy, the actual amount of energy that can be achieved is 100-115Wh / kg and 240-253Wh / L (2 times the NL-CD, 1.5 times Ni-MH), and the future Exhibition, more than 150Wh / kg and 400 WH / L 3) The loop life is long, and can generally reach more than 500 times, or even 1000 times. For small current discharge electrical appliances, the battery life will be multiplied. 4) Good safety, no pollution, no memory effect. As a lithium battery in the predecessor of Li-ION, due to the short circuit of the metal, it is used to form the dendrite, which is reduced in the field of application: Li-iON is not included. Cadmium, lead, mercury, etc. Content contaminated elements: some process (such as sintered) Ni-CD battery exists in "memory effect", severe bound cell Use, but li-ion does not exist in this area. 5) Self-discharge is small, the self-discharge rate of Li-ION storage after room temperature is about 10%, which is much lower than 25-30%, Ni and MH of Ni, MH. Lithium-ion batteries also have a certain disadvantage, such as: (1) The battery cost is high. It is mainly manifested in the price of LiCoO2 (smaller in CO), and the electrolyte system is difficult to purify. (2) Do not discharge large current. Due to the active electrolyte system, the internal resistance is large with other types of batteries. Therefore, the smaller discharge current density is required. The electric current is below 0.5c, which is only suitable for electrical use of small and medium currents. (3) Require protection line control. A, overcharge protection: battery over charge will damage the positive structure and affect performance and life; at the same time, the charge is reduced to decompose the electrolyte, and the internal pressure is too high, and the leakage liquid is caused; It must be charged under constant pressure of 4.1V-4.2V; B, overprofit: Overlanting can lead to difficulties in recovery of active substances, so there is also a protection line control. Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery