1. Lithium iron phosphate (LiFePO4) power lithium-ion batteries are primarily composed of lithium iron phosphate (LiFeCoPO4) cathode material with an olivine structure. LiFePO4 power lithium-ion batteries are rechargeable batteries that use lithium-ion metal or lithium-ion alloys as the cathode material and are non-aqueous acidic/alkaline. Ordinary lithium-ion batteries are mainly made of lithium manganese oxide (LiMn2O4) cathode material. Spinel lithium manganese oxide (LiMn2O4) was first manufactured by Hunter in 1981 and possesses a three-dimensional lithium-ion battery pathway. However, with the development trend of lithium-ion battery cathode materials, it is possible that more high-quality cathode materials will replace current materials. Regardless, the safe use of lithium-ion battery materials remains paramount.
2. Voltage difference between lithium iron phosphate (LFP) power lithium-ion batteries and lithium-ion batteries: The standard operating voltage of a LFP power lithium-ion battery is [value missing], and when fully charged, the charge/discharge cutoff voltage of the LFP battery cell is [value missing]. The standard operating voltage of a general lithium-ion battery is [value missing], and when fully charged, the charge/discharge cutoff voltage of the lithium-ion cell is [value missing]. Comparatively, the operating voltage of a lithium-ion battery is higher than that of a power lithium-ion battery. LFP batteries are more resistant to overcharging and over-discharging; after being discharged to 0% in a short time, they can recover more than 80% of their charge. Excessive charging and discharging of lithium-ion batteries can cause irreversible damage.
3. Lithium iron phosphate batteries will not catch fire or explode when punctured, whereas ordinary lithium-ion batteries will explode when punctured.
4. Lithium iron phosphate power lithium-ion batteries are not prone to explosion when overcharged to 100%; generally, lithium-ion batteries will release gas and expand when they reach the standard value.
5. Differences in charge/discharge characteristics between lithium iron phosphate (LFP) power batteries and regular lithium-ion batteries: LFP power batteries can withstand continuous charge/discharge at 30C without safety risks. Some LFP batteries can achieve an instantaneous current of 600A, while regular lithium-ion batteries, under normal conditions, may fail to operate at a charge/discharge rate of 3C, potentially causing the battery to malfunction.
6. Net weight difference between lithium iron phosphate power lithium-ion batteries and ordinary lithium-ion batteries: The net weight of lithium iron phosphate power lithium-ion batteries of the same capacity is basically twice that of ordinary lithium-ion batteries.
7. Difference in internal resistance between lithium iron phosphate power lithium-ion batteries and ordinary lithium-ion batteries: The internal resistance of lithium iron phosphate power lithium-ion batteries of the same volume is much smaller than that of ordinary lithium-ion batteries.
8. Volume difference between lithium iron phosphate power lithium-ion batteries and lithium-ion batteries: For the same volume, lithium iron phosphate power lithium-ion batteries have a smaller volume than ordinary lithium-ion batteries. That is, the specific energy of rechargeable batteries made of lithium iron phosphate positive electrode material is about 60% lower than that of ordinary lithium-ion batteries.
9. Price difference between lithium iron phosphate power lithium-ion batteries and regular lithium-ion batteries: Lithium iron phosphate power lithium-ion batteries are about 50% more expensive than regular lithium-ion batteries.
10. Temperature difference between lithium iron phosphate power lithium-ion batteries and lithium-ion batteries during operation: The operating temperature of lithium iron phosphate power lithium-ion batteries is higher than that of lithium-ion batteries, while the operating temperature of lithium-ion batteries is about 6 degrees lower than that of lithium-ion batteries.
Lithium-ion batteries typically do not contain metallic lithium ions. During charging, driven by an electric field, lithium ions are extracted from the positive electrode lattice, pass through the electrolyte, and are inserted into the negative electrode lattice. During discharging, the process is reversed: lithium returns to the positive electrode, while electrons pass through the electrical appliance and the external circuit to the positive electrode to recombine with lithium. Because lithium-ion batteries do not contain any precious metals, the raw materials are very inexpensive, allowing for significant price reductions, making them likely the cheapest batteries available.
The downside is safety; because the metal casing is well-sealed, the battery may overheat and explode during use.
Lithium-ion polymer batteries (Li-polymer) are developed based on lithium-ion batteries, replacing the traditional liquid organic electrolyte with a polymer electrolyte. This polymer electrolyte can act as both a medium for conducting ions and a separator. Furthermore, its extremely low reactivity with metallic lithium ions effectively prevents the flammability and leakage problems common in lithium-ion batteries. Because lithium polymer batteries adsorb the liquid organic electrolyte onto a polymer matrix, known as a colloidal electrolyte, which is neither a free electrolyte nor a solid electrolyte, lithium-ion polymer batteries not only possess the excellent performance of liquid lithium-ion batteries but can also be manufactured in any shape and size, including ultra-thin products, making them widely applicable and with promising development prospects. Additionally, they are safer than lithium-ion batteries; if they heat up during use, they will only swell or burn, not explode.
Lithium iron phosphate (LFP) batteries are lithium-ion batteries that use lithium iron phosphate ions as the positive electrode material. Long-life lead-acid batteries have a cycle life of around 300 cycles, with a maximum of 500 cycles for LFP batteries. In contrast, LFP power lithium-ion batteries have a cycle life exceeding 2000 cycles, achieving 2000 cycles under standard charging (5-hour rate) conditions. A lead-acid battery of the same quality will last at most 1-1.5 years (new for six months, old for six months, and maintenance for another six months), while an LFP battery, under the same conditions, will last 7-8 years. Considering all factors, the performance-price ratio of LFP batteries is more than four times that of lead-acid batteries.
