Charging lithium battery technology dispute: Is it developing three yuan charging lithium batteries or phosphate charging lithium battery?

Charging lithium battery technology dispute: Is it developing three yuan charging lithium batteries or phosphate charging lithium battery?

The dispute between lithium-ion battery technology: Is it developing a three-dimensional lithium-ion battery or a lithium phosphate ion battery? Throughout the current domestic new energy vehicle market, the important material for electric vehicle battery technology is lithium iron phosphate and three-dimensional lithium-ion battery. It has views that in the field of passenger cars, the ternary lithium ion battery is strong due to high energy density and strong battery capacity. Is current mainstream development direction.

In the field of public transport, the lithium iron-phosphate route should be adhered to higher thermal stability and more secure.. The dispute between lithium-ion battery technology: Is it developing a three-dimensional lithium-ion battery or a lithium phosphate ion battery? The so-called lithium iron ion battery is a lithium ion battery refers to lithium iron phosphate as a positive electrode material.

. This type of battery is characterized by excluding valuable metal elements..

Since there is no valuable metal material, the cost of the lithium iron phosphate ion battery can be compressed very low.. In actual use, iron phosphate ion batteries have high temperatures, strong safety and stability, cheap, and better cycle performance.

. The ternary lithium-ion battery refers to a lithium ion battery used as a positive electrode material using nickel-watery, graphite as a negative electrode material, and the lithium iron ion battery, and the ternary lithium ion battery voltage platform is high, which means In the same volume or weight, the ratio energy of the ternary lithium ion battery is greater, in addition to this, the three-yuan lithium-ion battery has great advantages in terms of high-magnification charging, and low temperature resistance, etc..

The phosphate ion battery is characterized by high safety, high magnification charge and discharge characteristics and longer cycle life.. The charge and discharge characteristics are also relatively stable.

The stability in the case of large rate discharge is related to the performance performance of electric vehicles under high power demand conditions, the voltage is more stable, the better the performance of the vehicle, and this It is also possible to explain why the battery is attenuated at the high speed of electric vehicles. When the battery is output, the actual discharge capacity will shrink when the battery is output..

The lithium phosphate ion battery also has good fast charge characteristics, in addition to the life expectancy, excellent charging and discharging, the largest advantage of the lithium iron ion battery is that the chemical properties of lithium iron phosphate are stable, high temperature stability, 700-800 ¡ã C will begin to decompose, and no oxygen molecules are not released in the face of impact, acupuncture, short circuit, etc., and there will be no severe combustion, high safety performance..

The disadvantage of the lithium phosphate ion battery is that its performance is highly affected, especially in low temperature environments, discharge capacity and capacity will be greatly reduced.. Further, the energy density of lithium iron phosphate is low, only the weight of the battery is only 120WH / kg, and the ternary lithium ion battery refers to the transition metal of the three elements of nickel-cobalt-manglangium, the positive electrode of the positive electrode Ion battery, this material integrates lithium cobaltate, lithium nickellate and lithium nickellate and lithium manganese acid, forming a three-phase melting system of three materials, due to the integrated performance of the three-way synergistic effect is better than any single Combined compound.

Weight energy density can reach 200Wh / kg. However, the safety of the three-dimensional lithium-ion battery is poor..

The three-dimensional lithium-ion battery is poor, and the decomposition of 250-300 ¡ã C will occur. When the battery in the battery is combustible, the carbon material is at a point, and the heat of the heat further exacerbates the positive decomposition, in a very short time. Will blast.

Based on safety considerations, new energy passengers with three-dimensional lithium-ion batteries cannot enter the new energy car catalog of the Ministry of Industry and Information Technology, while cars, trucks are not affected.. Although there is a safety concern, because the policy on energy density, the three-dimensional ion battery has already replaced the lithium phosphate ion battery trend, and become the mainstream of the passenger car.

. The ternary batteries and lithium iron phosphate ion batteries have the advantage of energy density, with the rapid development of the electric vehicle market, people’s energy density requires higher and higher, and the endless mileage is almost measured with pure electric vehicles. The most critical indicator.

Previously, my country’s power lithium battery technology route is based on lithium iron phosphate ion batteries, but the state has also begun to tilting capacity density and battery miles on new energy vehicle policy subsidies.. At present, most of the battery plants are still in the process of developing high-nickel-nickel-based three yuan.

Of course, there is also a considerable number of car companies are preparing for the sale of lithium iron phosphate ion battery materials to reduce cost avoid competition.. However, no matter which, about consumers, as long as the performance of the product does not affect security, it is a good thing.

. Of course, the share of the three-dimensional lithium and lithium-phosphate ion battery will not be a thousand miles, and the possibility of coexistence in the future will be larger..

The battle of lithium iron phosphate and three-yuan lithium ion battery is still a flat autumn, and the director, in the case of battery technology, the new month of China, soon, in the near future, the revolutionary changes are also expected, technology Already mature three-dimensional lithium-ion battery and lithium iron phosphate ion battery, a place in the market with its own advantages.

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