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Differences of LiFePO4 Battery, lithium polymer battery and lithium ternary battery

The range, charge, and discharge of electric vehicles are all connected with the function of batteries.  The most used in the market are lithium iron phosphate, lithium polymer, and ternary lithium batteries; three kinds of lithium batteries have their characteristics. 

Lithium Polymer Battery

Lithium Polymer Battery

Lithium polymer batteries use positive and negative data, and liquid lithium-ion is the same. Positive data is divided into lithium cobalt acid, lithium manganese acid, ternary data, and lithium iron phosphate data. Negative electrode graphite, battery operation principle is also common. The principle of lithium polymer battery is the same as liquid lithium, and the first difference is that the electrolyte is different from liquid lithium. The primary structure consists of three elements: a positive electrode, negative electrode, and electrolyte. The so-called polymer lithium-ion battery means that at least one or more of these three primary structures use polymer materials as the primary battery system. The polymer data are mainly applied to the positive electrode and electrolyte in the current lithium-ion polymer battery system.

Lithium Iron Phosphate(LiFePO4)Battery

lifepo4 battery

Lithium iron phosphate battery
refers to the lithium-ion battery using lithium iron phosphate as positive electrode data.   The positive materials of lithium batteries mainly include lithium cobalt acid, lithium manganese acid, lithium nickel acid, ternary data, lithium iron phosphate, etc.   Meanwhile, lithium cobalt acid is the cathode material used by most lithium-ion batteries.  The positive material of lifepo4 battery has many sources, long cycle life, high safety index, low environmental pollution.

Lithium Ternary Battery

lithium ternary battery

Ternary lithium battery refers to the lithium battery which uses nickel-cobalt-manganate as the positive electrode and graphite as the negative electrode. Unlike lithium iron phosphate, ternary lithium batteries have high voltage, which means that the specific energy and power of ternary lithium batteries are more significant for the same volume or weight. In addition, ternary lithium batteries also have significant advantages in large charging rates and low-temperature resistance. Ternary lithium batteries are more suitable for current and future household electric vehicles than lithium iron phosphate batteries.

Ternary lithium battery low-temperature resistant function better, is the first skill of manufacturing low-temperature lithium batteries, 20 กใ C below zero, the ternary lithium batteries can be released 70.14% of capacity, and lithium iron phosphate batteries can only be released 54.94% of capacity. Due to the low-temperature condition, the discharge way of the ternary lithium battery is much higher than the lithium iron phosphate battery voltage way to launch faster.

Lithium iron phosphate battery is better than ternary lithium battery, the theoretical cycle number of ternary lithium battery is 2000 times, but when the bottom reaches 1000 times, the capacity attenuates to 60%; Even tesla, the best brand in the industry, can only last 70 percent of the battery after 3,000 cycles, while the lithium iron phosphate battery still has 80 percent of the capacity after the same cycle.

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