What is the difference between a blade battery and a ternary lithium battery? Which is better?

What is the difference between a blade battery and a ternary lithium battery? Which is better?

The biggest advantage of lithium-ion batteries is that they have no memory effect and have a wider temperature range during operation. Even if it is operated for a long time, it can maintain the stability of the body's heat. Lithium-ion batteries are also divided into two types, one is a ternary lithium battery, and the other is a lithium iron phosphate battery.

Ternary lithium battery

Ternary lithium batteries generally refer to ternary polymer lithium batteries, which refer to lithium batteries using lithium nickel cobalt manganate (Li(NiCoMn)O2) or lithium nickel cobalt aluminate as the positive electrode material, and ternary composite positive electrode materials It uses nickel salt, cobalt salt, and manganese salt as raw materials. The ratio of nickel, cobalt and manganese can be adjusted according to actual needs. The battery with ternary material as the positive electrode is safer than lithium cobalt oxide battery, but the voltage is too low, so it is used in mobile phones. On the upper (the cut-off voltage of the mobile phone is generally around 3.0V), there will be an obvious feeling of insufficient capacity.

LFP Batteries

Lithium iron phosphate battery is a kind of lithium ion battery that uses lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material. The rated voltage of the single unit is 3.2V, and the charge cut-off voltage is 3.6V~3.65V. Lithium iron phosphate battery has the advantages of high working voltage, high energy density, long cycle life, good safety performance, low self-discharge rate and no memory effect.

Which is better compared to blade battery and ternary lithium battery?

The storage capacity of lithium-ion batteries is more flexible than that of traditional batteries. It supports fast charging, can store more than 80% of the power in the battery in a short time, and has a strong lockability. Its output power is high, and the battery has a long service life, and it does not contain toxic substances.

The shortcomings of ternary lithium batteries are obvious, and most of the lithium-ion batteries now use liquid or colloidal mechanisms to operate. The ternary lithium battery is in this form. In winter, due to the sudden drop in temperature in the north, the liquid or colloidal state inside the battery will not solidify, but the fluidity will become slow. The consequence of this is that the operating mechanism of the battery will be reduced, resulting in insufficient power or even cessation of operation.

The blade battery is actually called a super lithium iron phosphate battery. The reason why it is called a blade battery is because it is arranged like a blade and inserted into the battery pack. Compared with the ternary lithium battery, this blade battery is more resistant to low temperatures, and its battery core has a larger heat dissipation area, and it can match a higher energy density.

But the density of the blade battery is not as high as that of the ternary lithium battery, but compared to the ternary lithium battery, its safety performance is higher. Compared with the instability of the ternary lithium battery, the blade battery has a relatively sufficient safety factor, and its service life is also relatively long.

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