In today's era of rapid technological development, lithium batteries, as a key energy storage device, have long been deeply integrated into all aspects of our lives, from daily mobile phones and laptops to electric vehicles that lead the trend of green travel, to energy storage systems that power homes. Lithium batteries are indispensable. Did you know that the lithium battery family actually has many members, and different types of lithium batteries have their own advantages in performance, characteristics and application scenarios. Today, let us go deep into the world of lithium batteries and explore the mysteries of common lithium batteries. ​

At a time when new energy technologies are developing rapidly, ternary lithium-ion batteries and lithium iron phosphate batteries, as two major mainstream technology routes, have shined in different fields with their own unique advantages.

The ternary lithium battery, also known as a lithium-ion battery, is a common type of rechargeable battery. Its working principle relies on the intercalation and deintercalation of lithium ions between the positive and negative electrodes to complete the charging and discharging process. This type of battery, due to its high energy density and good cycle life, is widely used in fields such as electric vehicles and portable electronic devices.

Lithium iron phosphate batteries, a type of lithium-ion batteries, utilize lithium iron phosphate (LiFePO4) as the cathode material, typically employ graphite as the anode, and use a combination of organic solvents and lithium salts as the electrolyte.

Ternary lithium-ion batteries have several notable advantages. They possess a high energy density, a long cycle life, and are resistant to low temperatures. However, they exhibit insufficient stability at high temperatures. Ternary lithium-ion batteries can achieve the highest energy density, but their performance at high temperatures is relatively poor. For pure electric vehicles with requirements for driving range, they are the mainstream choice, and they are also suitable for the weather in northern regions, as the batteries are more stable in low temperatures. Tesla's Model 3, which was announced, uses Panasonic's 21700 type ternary cylindrical batteries.