The performance indicators of power batteries mainly include five aspects: energy storage density, cycle life, charging speed, high and low temperature resistance, and safety. Among them, energy storage density and safety are the two rigid needs of outdoor energy storage power supplies.
There are six commonly used energy storage power sources, namely aluminum-rich lithium battery, lithium manganese oxide battery, lithium titanate battery, lithium iron phosphate battery, ternary lithium battery, lithium cobalt oxide battery
Lithium manganese oxide batteries and lithium titanate batteries were the first to be kicked out due to their low energy storage density, while lithium cobalt oxide batteries suffered the same due to poor safety, leaving only aluminum-rich lithium batteries and lithium iron phosphate batteries , The ternary lithium battery has entered the energy storage market, but although the aluminum-rich lithium battery has a high safety factor and various parameters are very good, but the price is high, so many companies have not adopted the outdoor energy storage power supply; and various attributes are not bad. Lithium iron phosphate batteries and ternary lithium batteries have become two types of batteries commonly used in outdoor energy storage power supplies.
There are also differences between lithium iron phosphate batteries and ternary lithium batteries; let me give you a popular science;
One is high safety, because the thermal runaway temperature of lithium iron phosphate batteries is generally above 500 degrees, and that of ternary lithium batteries is lower than 300 degrees. In contrast, the risk of spontaneous combustion of lithium iron phosphate batteries during use is lower. The second is longer cycle life, because the lithium iron phosphate battery will start to decay after the number of charge and discharge cycles is greater than 3,500, which means that its service life can be as long as ten years or so, but the number of charge and discharge cycles of the ternary lithium battery is only It is 2000 times, which means that its service life is only 6 years. This more intuitive comparison of the length of time will allow everyone to feel the advantages of lithium iron phosphate batteries more directly.
