How to purchase a lithium battery electric vehicle

A lithium-ion battery is a rechargeable battery that relies on lithium ions to move between the positive and negative electrodes to work. Conventionally, the process of lithium ions entering the positive electrode material is called embedding, and the process of leaving is called deintercalation; the process of lithium ions entering the negative electrode material is called insertion, and the process of leaving is called deintercalation. Like all chemical batteries, lithium-ion batteries are also made up of three parts: the positive electrode, the negative electrode, and the electrolyte. The electrode materials are all lithium ions that can be intercalated (inserted)/deintercalated. The voltage of a lithium ion battery is 3.6~3.7V.

The working principle of lithium ion battery lithium ion battery refers to its charging and discharging principle. When the battery is charged, lithium ions are generated on the positive electrode of the battery, and the generated lithium ions move to the negative electrode through the electrolyte. The carbon as the negative electrode has a layered structure, and it has many micropores. The lithium ions reaching the negative electrode are embedded in the micropores of the carbon layer, and the more lithium ions are embedded, the higher the charging capacity. Buy lithium battery electric car

Lithium ion polymer batteries, also known as polymer lithium batteries, lithium polymer batteries. It is a rechargeable battery using a gelatinous polymer as an electrolyte. It avoids the easy safety problem of lithium ion batteries at high temperatures. Compared to lithium-ion batteries, lithium polymer batteries have the following characteristics:

1. No battery leakage problem, the battery does not contain liquid electrolyte inside, using colloidal solids.

2. Can be made into a thin battery: its thickness can be as thin as 0.5mm.

3. The battery can be designed in a variety of shapes, up to 90°. By the same token, when the battery is discharged (ie, the process we use the battery), the lithium ions embedded in the carbon layer of the negative electrode come out and move back to the positive electrode. The more lithium ions return to the positive electrode, the higher the discharge capacity. What we usually call battery capacity refers to the discharge capacity.

4. A single high-voltage: liquid electrolyte battery can only be connected in series with several batteries to obtain a high voltage, and the polymer battery can be made into a multi-layer combination in a single piece to achieve a high voltage because it has no liquid itself.

5. The capacity will be twice as high as the same size lithium-ion battery.

The lithium ion polymer battery has a voltage of 3.6 to 3.7V.

lithium iron phosphate battery

Lithium iron phosphate (molecular formula: LiMPO4, English: Lithiu Miron phosphate, also known as lithium iron phosphate, lithium iron phosphorus, referred to as LFP), is a positive electrode material for lithium-ion batteries, also known as lithium iron phosphorus battery, featuring cobalt-free Valuable elements, low raw material prices and abundant resources of phosphorus, lithium and iron in the earth, there will be no supply problems. Its working voltage is moderate (3.2V), large capacity (170mAh/g), high discharge power, fast charging and long cycle life, high stability under high temperature and high heat environment. The voltage of the lithium iron phosphate battery is 3.2~3.3V. Lithium batteries are roughly classified into lithium-ion batteries and lithium-metal batteries. However, due to the very active chemical properties of lithium metal, lithium metal fabrication and use are highly environmentally demanding, such as easy to cause safety accidents, so lithium metal batteries are difficult to be commercially used.

Battery core

Here refers to a container that can store and release charge, with a certain rated voltage and rated capacity.

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