BYD launched the “blade battery”, which belongs to the lithium phosphate ion battery. From the product structure, it is to extend the battery cells of the power lithium battery, so that the single cell shape is flat, narrow, although the structure of the module is still retained. However, it is combined with a plurality of “blade” to form a module, and the overall idea is also reduced by a small number of large-modules, and the overall idea is also reduced by module structure and monomer connection harness, and enhances packaging efficiency.
. At the same time, it can greatly improve its energy density..
The lithium iron phosphate ion battery uses lithium iron phosphate as a positive material. It is costly with iron to do battery material. The two does not contain heavy metals, which is small, and the operating voltage is 3.
2V.. The PO key in the lithium phosphate crystal is stunned, so there is no leakage when the zero voltage is stored, and the high temperature conditions are very high, which can be quickly charged, high-discharge power, no memory effect, high cycle life, The disadvantage is that the low temperature performance is poor, the positive electrode material has a small density, low energy density, and product yield and consistency are also questioned.
. The three-dimensional lithium-ion battery is “three yuan material battery”, which is generally referred to as a lithium ion battery using lithium nickel-cobalt-manganese acid (Li (NICOMN) O2, NCM) or a lithium-cobalt-aluminate (NCA) ternary positive electrode material. The nickel salt, cobalt salt, and manganese salts are different, so that it is called “three yuan”, including many different proportional types of batteries.
. From the shape, it can be divided into a soft boiler battery, a cylindrical battery and a square hard shell battery..
Its nominal voltage can reach 3.6-3.8V, the energy density is relatively high, high voltage platform, high vibration density, long output power, poor high temperature stability, but low temperature performance, high cost.
The strength of the ternary lithium ion battery and lithium iron phosphate and lithium iron battery mentioned above can see that the maximum advantage of lithium iron phosphate is safe and stable, and the low temperature life is high, and the energy density is poor. Relatively low, and the ternary lithium ion battery can do a relatively high energy density, but the high temperature performance is poor, and the safety stability is also a little inferior to the lithium lithium phosphate..
If BYD launched the “blade battery” really can effectively solve the problem of energy density, the price is also very competitive, still has a large market potential. .