Brief analysis of the performance difference between power lithium battery and ordinary lithium battery

The performance difference between power lithium battery and ordinary lithium battery: 1. Taking lithium iron phosphate as an example, lithium iron phosphate power lithium ion battery is mainly composed of lithium iron phosphate life cycle 4 peridot structure lithium battery anode material. Lithium iron phosphate power lithium ion battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The ordinary lithium battery is mainly composed of lithium manganate anode material, and it is mainly a spinel-type lithium manganate material. In 1981, Hunter prepared the spinel-type lithium manganate lithium salt anode material with three-dimensional lithium ion channels for the first time. However, with the development trend of lithium battery anode materials, there may be more high-quality anode materials to replace current materials. However, the safe application of battery materials is more important. Ternary lithium battery or lithium iron phosphate battery 2. Voltage difference between lithium iron phosphate battery and lithium battery: standard voltage of lithium iron phosphate battery platform is 3.2v, full charge 3.65v, lithium iron phosphate battery battery discharge cut-off voltage 2.0v; and ordinary lithium The battery platform voltage is 3.7v, 4.2v after fully charged, and the battery discharge cut-off voltage is 2.7v. In contrast, the voltage of lithium batteries is higher than that of power lithium-ion batteries. Lithium iron phosphate can be overcharged and overdischarged, and overcharge can recover more than 80% in a short time. When lithium ion is overloaded at 2.6v, irreversible damage will occur. 3. Lithium ferric acid battery puncture will not cause fire or explosion, but normal lithium battery puncture will cause explosion. 4. Lithium iron phosphate power lithium ion battery will not catch fire when overcharged to 100%; ordinary lithium battery will burst when it reaches the specified value. 5.Discharge performance difference between lithium iron phosphate power lithium ion battery and lithium battery: lithium iron phosphate power lithium ion battery can support 30c discharge rate and unsafe hidden dangers, some lithium iron phosphate batteries can reach 600 instantaneous current, normal and ordinary lithium batteries Support 3c discharge rate, continuous high current discharge battery false death phenomenon occurs. Ternary lithium battery 6. The weight difference between lithium iron phosphate power lithium ion battery and lithium battery: the same volume of lithium iron phosphate power lithium ion battery is nearly twice the weight of ordinary lithium batteries. 7. The internal resistance of lithium iron phosphate power lithium ion battery and lithium battery is poor: the internal resistance of lithium iron phosphate power lithium ion battery of the same volume is much lower than that of ordinary lithium battery. 8.The difference between capacity lithium iron phosphate power lithium ion battery and lithium battery: The volume of the same capacity of lithium iron phosphate power lithium ion battery is lower than that of ordinary lithium batteries, and the energy density of the battery is about 60% from the lithium iron phosphate anode material. Lower than ordinary lithium batteries. 9. The price difference between lithium iron phosphate batteries and lithium batteries: the price of lithium iron phosphate batteries is about 50% higher than that of ordinary lithium batteries. 10. The working temperature difference between lithium iron phosphate power lithium ion battery and lithium battery: the working temperature of lithium iron phosphate power lithium ion battery is higher than that of lithium iron phosphate power lithium ion battery. , And the working environment temperature of the lithium battery should be about 5 degrees lower. Which is better, lead-acid battery or iron-lithium battery? 1. Lithium-iron battery has light weight and high specific energy, but it is safe and cost-effective; the same lead-acid battery has small weight, volume and specific energy, but has good safety and cost-effectiveness. High, so in this case are you willing to choose lead-acid batteries or iron-lithium batteries? 2. Lithium iron batteries are rechargeable batteries, lead-acid batteries are alkaline batteries; the cycle life of iron-lithium batteries is that of lithium batteries More than 2500 times, the cycle life of lead-acid batteries is about 800 times that of lithium batteries. The specific energy of lead-acid batteries is about 40Wh/kg. The charging time of iron-lithium batteries can be fully charged within 4h, while the charging time of lead-acid batteries is generally about 6h. 3. The charging and discharging power efficiency of lithium iron batteries is more prominent. The charging and discharging power conversion efficiency of lithium batteries can exceed 97%, while the charging and discharging electric energy conversion efficiency of lead-acid batteries is about 80%, which is equivalent to that of lead-acid batteries. The iron battery is small, and the volume of a lithium iron phosphate battery is about two-thirds the size of a lead-acid battery. 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