Disadvantages of 18650 cylindrical lithium battery

　　1, for 18650 lithium battery, the larger defect is that its volume is fixed, installed in some notebooks or some commodities are not suitable, natural this defect can also be said to be an advantage, relative to other polymer lithium, this is a customized and convertible specifications of the defect. This is an advantage when compared to products with certain rechargeable battery specifications.

　　2, compared with the general rechargeable battery, 18650 lithium battery is more likely to produce short circuit fault, explosion and other safety accidents, if the relativity of general rechargeable battery, this kind of shortcomings are not so significant.

　　3, the production and manufacture of 18650 lithium must have a maintenance line, in order to avoid too much charging and discharging of rechargeable batteries. This point is naturally necessary for lithium electricity, which is also one of the defects of lithium electricity. Because most of the raw materials used in lithium electricity are lithium cobalt acid battery, and lithium cobalt acid battery raw materials can not carry out large current charge and discharge, and the safety factor is weak.

　　4. Battery cathode materials include lithium nickelate, lithium manganate battery, lithium ternary acid, lithium ferrous phosphate, etc. Battery cathode materials are generally amorphous carbon materials, graphitized carbon materials, silicon-based raw materials, nitrogen compound raw materials, new aluminum alloy, etc

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