Internal structure of square and cylindrical lithium batteries

4 FAQs about [Internal structure of square and cylindrical lithium batteries]

What is the internal structure of a cylindrical lithium-ion battery?

Figure 1 shows the internal structure of a cylindrical lithium-ion battery, with an aluminum sheet coated with cathode material as the positive electrode and a copper sheet coated with anode material as the negative electrode.

What is a battery structure?

The battery structure refers to the arrangement and installation of the internal components of the battery.Different needs and applications require corresponding adjustments to the battery structure to meet actual needs. For example, positive electrode materials differ between ternary lithium batteries and lithium iron phosphate batteries.

What are the components of a cylindrical battery?

A typical cylindrical battery structure mainly includes a casing, a cap, a positive electrode, a negative electrode, a separator, an electrolyte, a PTC element, a gasket, and a safety valve.

How to design a lithium ion battery?

Safety is a top priority in lithium-ion battery design. Separators must keep the anode and cathode apart to prevent short circuits. Overcharge protection is essential to stop the battery from overheating. Thermal management systems help keep the battery at a safe temperature.

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