The structure and cost are different, as is the security.
1. The positive electrode material of lithium cobalt oxide battery is lithium cobalt oxide, the negative electrode material is graphite, the electrolyte is organic solvent, and the Positive and negative electrodes are separated by a polyolefin film. , so the battery capacity is high. The positive electrode material of ternary lithium battery is nickel-cobalt-manganese oxide (NCM), the negative electrode material is also graphite, the electrolyte is organic solvent, and the separator between the positive and negative electrodes is also a polyolefin film. Compared with ternary lithium batteries, the cost of lithium cobalt oxide batteries is lower.
2. The safe operating temperature of lithium cobalt oxide batteries can reach 170 degrees Celsius, while the temperatureThe temperature of ternary lithium batteries is only 130 degrees Celsius, which greatly improves the safety of use and is also beneficial to the user. security.
It will not be eliminated for the time being because the technology is the most mature (including electrode manufacturing technology, film forming technology, battery uniformity, etc.), but in the long term, it will certainly be eliminated because cobalt is a strategic resource, the relative cost is relatively high. When the technology of lithium manganate and lithium iron continues to mature, they can replace lithium cobalt oxide. The main development direction of lithium iron batteries remains the power battery of electric vehicles. The technical improvement of lithium manganate is indeed the direction of commercial and consumer batteries. In fact, many cheap lithium batteries use currentit is lithium manganate, but the technology is still there. lack. It is not very mature and its durability is not as good as lithium cobalt oxide.