18650 li ion rechargeable battery

　　Advantages of lithium manganate batteries

　　Advantages of lithium manganate batteries:

　　1.High safety factor

　　Lithium manganate has a good safety factor. According to statistics, during the operation pin or short-circuit fault test, it was found that a small number of test items were in the ignition state, but no explosion accidents occurred, and in the overcharge test, most of the self-charging and discharging working voltages were used to charge multiple high-voltage batteries, and explosions occurred . In fact, the safety factor of lithium manganate batteries is much higher than other lithium-ion batteries.

　　2. Long cycle life

　　It is understood that long-life lead-acid batteries have only 300 cycles and can last up to 500 cycles. Lithium manganese oxide battery has a cycle life of more than 2,000 times. The service life of lead-acid batteries of the same quality is generally about 2 to 3 years, while the service life of lithium manganate batteries is generally 7 to 8 years.

　　3. No memory size

　　Rechargeable batteries often work according to charging and discharging standards, and the volume will quickly become smaller than the short-circuit capacity, such as memory. For example, ni-h and ni-cd batteries have memory capabilities, but lithium manganate batteries do not exist and the battery power will not be reduced. Rechargeable batteries, regardless of condition, can be used to recharge without the need to complete the battery charge. A lithium manganese battery of the same size is 2/3 lead-acid and 1/3 lead-acid by net weight.

　　4. Low-carbon environmental protection

　　Lithium manganese oxide batteries are generally not considered to contain excessive amounts of non-ferrous metals, non-toxic, non-polluting heavy metals. Lithium is common on site, mainly due to environmental protection considerations. As a key support for lithium power supply, lithium manganate has obvious environmental characteristics.

　　5.High temperature

　　According to statistics, the maximum heating value of lithium manganate batteries is 350c-500c, and some lithium batteries only heat up to 200c. Therefore, lithium manganate batteries have some advantages in high temperature performance!

　　Lithium manganate batteries have their own shortcomings. Their ultra-low temperature characteristics are weak. The cost of preparing raw materials for lithium manganate batteries is higher than the manufacturing cost of rechargeable batteries, which is difficult to avoid.

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