What is the difference between a lithium battery and an electric cell?
Back
2020/12/19 08:48:54
Cell refers to a single electrochemical cell containing positive and negative electrodes, which is generally not used directly.Unlike batteries that contain protective circuits and enclosures, they can be used directly.The cell is divided into aluminum shell cell, soft package cell (also known as "polymer cell") and cylindrical cell.Generally, cell phone batteries are made of aluminum shell cells, bluetooth and other digital products are mostly made of soft-pack cells, and laptop batteries are made of series and parallel combination of cylindrical cells.
Lithium battery is mainly composed of two large parts, the battery cell and the protection board PCM (power battery is generally referred to as the battery management system BMS). The protection board is mainly composed of the protection chip (or management chip), MOS tube, resistor, capacitor and PCB.The battery cell is the heart of the lithium battery, and the management system is the brain of the lithium battery. The battery cell is mainly composed of positive and negative materials, electrolyte, diaphragm and shell.
The battery cell is an important part of the lithium battery module, often said the lithium battery is composed of the battery cell, management (protection) unit, shell and so on, so the size is not the same is normal.The cell is a semi-finished product, which can not be used directly as a battery, but only to provide power. It needs to be equipped with a protective circuit and packaged with a shell to form a finished battery.
Previous
