u003cpu003e(1) High-rate dischargeu003c/pu003eu003cpu003e When the test temperature is 25℃ and the test voltage is 2.9～3.3V, the discharge curves of lithium iron phosphate batteries at different rates are shown in the figure, which can be seen from the figure Out, under different test voltages and magnifications, the discharge capacity is close to 100% when the discharge voltage is close to 2.0V. u003c/pu003eu003cpu003e(2) High energy density The weight energy density of lithium-ion batteries is 150Wh/kg. Under the same volume, the energy density of lithium-ion batteries is about 3 to 4 times that of lead-acid batteries. Compared with the lead-acid battery, the weight of the lithium iron phosphate battery of the same capacity is reduced by about 60% to 70%. See Table 1 for the power comparison between the iron-lithium battery pack
and the lead-acid battery. u003c/pu003eu003cpu003eu003c/pu003eu003cpu003e(3) High cycle performanceu003c/pu003eu003cpu003e Under normal conditions, the charge-discharge cycle of ordinary lead-acid batteries is 300~500 times, and that of lithium-ion batteries The charge and discharge cycle can exceed 1000 times. u003c/pu003eu003cpu003eu003cpu003e(4) Fast chargingu003c/pu003eu003cpu003e The energy conversion efficiency is high, and the charging can be completed within 1 to 3 hours, while ordinary lead-acid batteries cannot be charged so quickly. u003c/pu003eu003cpu003e(5) High safetyu003c/pu003eu003cpu003e Because ordinary lead-acid batteries contain heavy metals such as lead and antimony, they are likely to cause serious pollution to the environment, and leakage may occur during use and maintenance. If the internal sulfuric acid overflows , It will cause equipment corrosion and personal injury accidents. The lithium iron phosphate battery does not contain any heavy metal elements harmful to the human body, is pollution-free, and has high safety. It is currently the safest lithium ion battery. u003c/pu003eu003cpu003eu003cpu003e(6) Low costu003c/pu003eu003cpu003e The life cycle of the traditional 48V lead-acid battery is generally 5 years, and the life cycle of the telecommunication iron-lithium battery pack can reach 10 years. In addition, the lithium iron phosphate battery adopts an intelligent intermittent charge and discharge management mode, which greatly reduces power consumption costs. u003c/pu003eu003c/pu003eu003c/pu003eu003cpu003eu003c/pu003eu003c/pu003e
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