Is ternary lithium or lithium iron phosphate better?

Introduction Ternary lithium or lithium iron phosphate batteries are currently more common types of lithium ion batteries, each with their own advantages and applicable scenarios. 1. Ternary lithium battery

Is ternary lithium or lithium iron phosphate better?

Ternary lithium batteries and lithium iron phosphate batteries are currently the most common types of lithium-ion batteries, each with their own advantages and applicable scenarios.

1. Ternary lithium battery

Ternary lithium battery has the characteristics of high energy density, high voltage platform and long service life. It can provide higher energy density, that is, store more electrical energy in the same volume, and is suitable for applications requiring higher battery capacity, such as electric vehicles and portable electronic devices.

In addition, the charging speed of ternary lithium batteries is relatively fast and can be charged in a short time. However, the cost of ternary lithium batteries is high, and they have high requirements for materials and processes. They are equalement high safety requirements and are prone to problems such as overcharging and overloading.

2. Lithium iron phosphate battery

Lithium iron phosphate battery has high safety and long service life. Because it uses lithium iron phosphate as the cathode material, it has high thermal stability and overload resistance, and is not prone to safety problems such as overheating and burning. It is more suitable for application scenarios with higher safety requirements, such as power tools and. Energy storage in a power plant.

Ternary lithium battery range:

1. Electric vehicles: As one of the main power batteries for electric vehicles, ternary lithium battery has high energy density and fast charging properties enable electric vehiclesto have longer autonomy and shorter charging times.

2. Portable electronic devices: such as smartphones, tablets and laptops. The high energy density of ternary lithium batteries allows these devices to store more electricity in a smaller volume and extend their usage life.

3. Wearable devices: such as smart watches, smart glasses, fitness trackers, etc. The long life of ternary lithium batteries allows portable devices to last longer and reduce the frequency of battery replacement.

This is definitely a better ternary lithium battery. The difference is that first of all, the price of lithium batteries is lower than that of iron phosphate. Second, lithium batteries are environmentally friendly. Battery friendly and can be used multiple timestaken.

Ternary lithium battery

The full name of ternary lithium battery is "ternary material battery", which generally refers to the use of lithium nickel cobalt manganate ( Li (NiCoMn) O2, NCM ) or Lithium nickel cobalt aluminate (NCA) ternary cathode material lithium battery uses nickel salt, cobalt salt and manganese salt as three different components and adjusts the proportions differently , it is therefore called "ternary", which includes many different components. battery type. Distinguished by their shape, they can be divided into soft batteries, cylindrical batteries and square hard-shell batteries.

Its rated voltage can reach 3.6-3.8V, with relatively high energy density, high voltage platform, high socket density, long battery life, power of high output, poor high temperature stability, but excellentlow temperature performance. The cost is also relatively high.

Lithium iron phosphate battery

Lithium iron phosphate battery uses lithium iron phosphate (LiFePO4) as the cathode material, the use of iron as the raw material of the battery is inexpensive, does not contain heavy metals, has less environmental pollution, and the operating voltage is 3.2 V.

The PO bond in the lithium iron phosphate crystal is stable, so there will be no leakage when stored at zero voltage. It is very safe under high temperature or overcharge conditions, can be charged quickly and has a high discharge. power and is safe. Memory effect, high life, defects include poor low temperature performance, low cathode material setting density, low energy density, and product yield and consistency also havehas not been called into question.

Both types of batteries have their own advantages

Under high temperature conditions, the ternary material of the ternary lithium battery will decompose at 200°C, causing a violent reaction chemical and releasing oxygen. atoms and are subject to combustion or explosion at high temperatures. Therefore, for safety reasons, China's Ministry of Industry and Information Technology issued special regulations in January 2016 to temporarily limit the use of ternary lithium batteries to purely electric buses. Lithium phosphate batteries have a decomposition temperature of 800°C, are less likely to catch fire and are relatively safe.

Under low temperature conditions (temperature below -10℃), lithium phosphate batteries degrade very quickly. After less than 100 charge and discharge cycles, theBattery capacity will drop to 20% of its initial capacity, which is normal. basically the same as It is insulated for use in cold areas; and ternary lithium batteries have excellent low temperature performance and can maintain normal battery capacity under -30°C conditions, making them more suitable for use in northern low temperature areas. .

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