Will lithium batteries replace solar street lamp energy storage batteries?

1. Compared with nickel-hydrogen battery, lithium battery has the following advantages: high working voltage, high energy density, low self-discharge rate, no memory effect; lithium battery can be made thinner (the thinnest polymer lithium battery is only 0.5mm ), smaller; the area and shape can be changed at will, greatly improving the flexibility of battery shape design. Manufacturers can make any shape according to user requirements. Compared with lithium batteries and lead-acid batteries, they are lighter and more durable, and have relatively little environmental pollution; when lithium batteries are not fully discharged or charged, use external power sources, and continue to use external connections after charging. Will cause additional loss to the battery. 2. Disadvantages of lithium batteries: Lithium batteries are not resistant to high or low temperatures. Due to some defects in the manufacturing process, when the ambient temperature is high, it is easy to cause explosion damage due to overcharging. Long-term charging of lithium batteries will put the battery on the edge of danger for a long time, because long-term charging will reduce the characteristics of the battery's charge and discharge protection circuit. After the lithium battery has been charged for a period of time, if the charger is not removed, the system will not only stop charging, but also start the discharge and charge cycle, and the life of the charger will decrease. Charging for a long time takes a long time, usually at night. Take my country's power grid as an example. The voltage is high at night and fluctuates greatly in many places. Compared with nickel batteries, lithium batteries are much less resistant to charge and discharge fluctuations, so the life of lithium batteries will be further reduced. Due to the very active chemical properties of metallic lithium, the production, storage, use and environmental requirements of metallic lithium are very high. Therefore, when not in use for a long time, the lithium battery should be taken out and placed in a cool and dry place. Do not freeze to avoid water vapor erosion. It is rarely used in the market of large-scale energy storage and power lithium-ion batteries (which require instantaneous high current). The main reason is that lithium and cobalt are the cathode materials of lithium batteries, which are not resistant to special environments such as high current, high voltage, high torque, impact, high temperature, and low temperature, and their safety is not guaranteed. Lithium-cobalt batteries cannot be charged quickly and are fully guarded against secondary pollution. It is necessary to design a protection circuit to guard against overcharge or overdischarge, otherwise it will cause explosions and other dangers. The price of cobalt is getting higher and higher. As the world's largest cobalt processor, Congo is suffering from war. Therefore, the price of cobalt keeps rising to guard against the purchase of spare lithium batteries for storage. Even if batteries are not used, their service life will naturally be impaired. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.