The emergence of lithium titanate battery made up for the deficiency of technical routes such as lithium iron phosphate and triyuan, which showed more possibility of battery technology route.
But if lithium titanate is to become the mainstream of the battery technology system, it faces some unavoidable challenges.
Lithium titanate batteries are popular because of their own value
The lithium titanate battery breaks the traditional battery technology route of the negative electrode of the carbon system, and changes it to lithium titanate as the cathode material, which makes it an alternative in the eyes of the peers.
Lithium titanate battery can, however, from an unknown battery category gradually compete to attract capital, to this day as the familiar, the root cause is also its own value.
The structure and particle size of the battery material affect the safety, stability, efficiency, life and cost performance of the battery.
Compared with the carbon anode materials, high potential of lithium titanate, within the scope of the normal battery voltage, lithium dendrite in lithium titanate is difficult to generate on the surface, which eliminated due to the lithium dendrite, in large part the possibility of short circuit is formed within the cell.
Therefore, lithium titanate battery is the most secure battery in the lithium-ion battery he has seen, according to xue jiayu, chief scientist of shandong yuhuang new energy technology co., LTD.
Lithium titanate has the advantages of high power characteristics and high low temperature performance.
At present, our country enterprise in the production of lithium titanate battery safety working temperature range can be up to - 50 ℃ to 65 ℃, while the ordinary carbon anode cell below - 20 ℃ temperature energy begin to decay, and 30 ℃ when charging capacity is only 14% of the total capacity, cannot work normally under the cold weather.
The structure of lithium titanate is stable, and the "zero strain" of Li+ deinlaying process has a longer cycle life.
The lithium titanate battery produced in the industry has been recycled 30,000 times, and the lithium iron phosphate and the three-cell battery are expected to be impossible.
Despite the relatively high cost of lithium titanate battery, the cost of the whole life cycle is still high.
Market application of lithium titanate battery
From a philosophical point of view, contradictions are everywhere, so there is no material that can be applied to all fields.
The same is true of lithium titanate batteries, which make up for the shortcomings of previous batteries and excel in specific areas.
Storage is considered to be the most suitable area for lithium titanate batteries.
The lithium titanate battery can be used in the fields of household energy storage, industrial storage, military energy storage and industrial storage.
With silver long new energy as an example, its business from storage battery materials, energy storage batteries, battery storage BMS to specific applications of energy storage battery and all kinds of energy storage, has formed a complete energy storage ecosystem.
Due to its high safety, fast charging and long life, lithium titanate battery has been widely used in new energy passenger vehicles.
For example, micro-macro power is going out of the country to provide a solution to the lithium titanate power battery system for the London transport bureau's double-decker buses. The performance of the lithium titanate battery has been recognized by the customer.
However, due to the energy density, lithium titanate battery has not been widely used in pure electric vehicle.
The challenge for lithium titanate batteries
Although lithium titanate has many advantages and has a good performance in the market, it must face some challenges if it is to develop further.
Chengdu institute of organic chemistry of Chinese academy of sciences researcher Dr Van not peak with his team of other institutions and industry research, put forward the lithium titanate battery are faced with the problem in the development, these problems or can inspire thinking, also is the direction of the industry need to work on.
Lithium titanate battery with better low temperature performance and lower cost;
"Low voltage + high capacity" lithium titanate cathode materials need to be further developed.
Replacing the large-capacity lead acid power supply, 100Ah~1000Ah high capacity titanate lithium titanate battery needs to be evaluated;
The high temperature gas production of lithium manganese acid lithium/titanate system has yet to be overcome.
Compared with the energy of 120Wh/kg, the appropriate electrolyte of the lithium ni manganate lithium/titanate system has to be overcome.
All solid-state titanate lithium batteries have been studied in the industry.
In addition, the lithium titanate power supply system of the system, such as "oil electricity extended range", "hydrogen titanium" assembly, "empty aluminum titanium" assembly, "titanium" scenery complementary, such as multiple system coordinated development of energy system problems, also need to be resolved.
With the expanding of China's new energy automobile market as well as the energy storage market gradually developed, titanium acid lithium batteries and other batteries, facing the huge market space, and faced with peer competition in the market, even in the face of their own lack of technology research and development challenges.
Lithium titanate battery companies are going to live well and have to move on and develop better batteries to meet market demand.