Is there a chance for the hottest ternary lithium

  • Detail

Is there a chance for Sanyuan to raise the price of lithium iron manganese phosphate

in 2017, ternary materials increased from 150000/ton to 200000/ton, seriously eroding the meager profits of battery factories. The most important raw material cost of Sanyuan is cobalt. Due to the change of political situation in Congo, the increase of demand, the reluctance of producers to sell, and the hype of investors, the cobalt price in 2018 is ready to move

in this case, what should we do if the price rises by three yuan

mixing lithium manganese iron phosphate (LMFP) may be one of the best options at this stage. LMFP was once considered by the industry as one of the most potential cathode materials, but it has not been widely used due to the difficulty of mass production and high technical threshold. However, times have created heroes. LMFP has made breakthroughs in mass production technology in recent years. Under the background that high nickel ternary has become the mainstream today, the ternary cost continues to rise, making the advantages of LMFP more obvious

we take the cost and safety that battery manufacturers attach the most importance to. These composites have a variety of functions and excellent structural properties and life indicators. The analysis is as follows:

1 cost

in the past, the mixing of ternary materials with LMFP will significantly reduce the energy density. However, after the improvement of LMFP in recent years, the loss of energy density caused by mixing has been greatly improved. Compared with the price of ternary materials, the price of LMFP was especially higher than that of ternary materials a year ago. Now, with the time-space transition, the price of ternary materials is 20% higher than that of LMFP. Looking forward to 2018, the gap between the two will continue to expand, and the cost of converting it into a 3-d-shaped champion mixed with LMFP will be lower than that of pure ternary materials

2 safety

ternary +lmfp has been certified by many battery manufacturers. Compared with pure ternary materials, the thermal decomposition temperature of Ternary Composites mixed with 20% - 30% LMFP is increased by 5-10% and the heat release is reduced by 40-60% (as shown in Figure 1), which proves that the safety problems of ternary materials can be completely solved from the nature of materials. The power battery industry now has to shift from 523 to 622 and 811 with higher safety concerns, If we only rely on the deregulation of policies, we will not be able to solve the problem of security after all. This problem has not been solved for a day, and it will always be an unexploded bomb. The painful cost of Sony and Samsung is still that Bayer materials technology belongs to Bayer Group. The company still has a fresh memory. As a leader of the enterprise, we have to be cautious

3 life

theoretically, the cycle life of ternary materials will gradually decrease with the increase of nickel content. At present, the service life of high nickel ternary is about 1200-1500 times, and it can be achieved by controlling the SOC in the range of 30% - 80%, so that the advantage of high energy density of ternary is discounted. LMFP is an olivine structural material with high cycle life characteristics. The cycle life of ternary mixed LMFP will increase by more than 20% - 30% according to the mixing proportion

other applications:

1 for safety and cost, its density is higher than MoSi2 prepared by direct sintering of MoSi2 powder. Considering that lithium iron is applied to buses, it has certain advantages. However, the performance of lithium iron is close to the maximum theoretical value, so it is difficult to make a greater breakthrough. At present, LMFP still has room for progress, because it has the excellent advantage of high voltage (3.9v). If LMFP is mainly mixed with a small part of ternary, it can not only maintain safety, but also its volume energy density can easily be higher than lithium iron by more than 20%

The combination of

2lmfp+ cathode lithium titanium oxide (LTO) is considered by many foreign battery manufacturers as the best option for energy storage system (ESS) because of its large capacity, high safety and long service life

lithium manganese iron phosphate (LMFP) is an eye-catching new material. Driven by the trend of high nickel ternary, it has the opportunity to become the mainstream of the next generation of battery cathode materials

Copyright © 2011 JIN SHI