First, what is a battery?
Model battery
Battery refers to a cup, tank or other container or composite container containing an electrolyte solution and metal electrodes to generate an electric current, a device that converts chemical energy into electrical energy. It has a positive and negative pole. With the advancement of science and technology, batteries are generally referred to as small devices that can generate electrical energy.
Second, what is a battery cell?
Lithium batteries
Battery cell refers to a single electrochemical cell containing positive and negative electrodes, which is generally not used directly. Unlike the battery, it contains a protective circuit and a housing, and can be used directly. The battery cell is the most core part of the whole battery, and the whole battery that can be sold in its entirety can be said to have completed more than 90% of the battery if the battery cell part is made. All that's left is the packaging of the battery and a range of other treatments.
Third, is the battery the same as the battery cell?
Many friends will ask if the battery and the battery are the same? In fact, in the real sense, the battery and the battery are two concepts of different things, from the structure of the battery above, often said lithium-ion battery is composed of cells, management (protection) units, shells, etc., so from the composition of the battery performance above the battery is not the battery is only part of the battery, about this statement is based on the structure of the cell, the cell in the structure of the important positive and negative pole plates, diaphragm, polar ears, packaging film and electrolyte composition, each part has its own functional uses.
The difference between the battery cell and the battery 1: the battery cell is only a part of the battery, or the battery is an important part of the battery, the battery has an extra layer of outer packaging than the battery, and this layer of packaging plays a role in protecting the use of the battery cell, but also plays a role in protecting the user's use. Prevents the battery from being broken and the chemicals inside hurt people. The battery we usually use is a lithium battery, and the lithium battery is usually composed of two structures, of which the first structure is the battery cell, and the second structure is the protection plate, the difference between the battery cell and the battery is also very obvious, the electric chip is just a simple component, and the battery is only a whole, in addition, the battery is actually a source of power supply, and the battery cell is only a carrier that makes up the battery.
The difference between the battery and the battery 2: From the structure of the battery, the battery cell is one of the components of the battery, people familiar with the battery structure know that the battery is divided into two parts of the battery and the protection board, the connection board is the part that connects the battery and the control board, and the control board is a circuit board that allows the battery to have various protection functions. To a certain extent, the most critical part of the battery is the battery cell, so when we select the battery, we must first understand its cell quality. The biggest difference between the two is that the battery cell cannot be used directly, while the battery has positive and negative poles, which can be used directly on the appliance. Recently, lithium batteries are particularly popular in the battery market, because the long-lasting function of lithium batteries is very good, and the service life is also very long, so once listed, it is loved by consumers, but the price of lithium batteries is generally much higher than that of ordinary batteries.
In short: the battery cell is a kind of semi-finished products, can not be used directly as a battery, to be coordinated by the internal circuit and shell of the battery to work with each other, can be used directly, comprehensively, lithium battery is not a lithium-ion battery, but a lithium-ion battery as an electrode part. Lithium-ion batteries are related to the chemicals inside. The chemicals in lithium-ion batteries determine the capacity of lithium-ion batteries and the voltage they can supply. The battery cell is yours and not necessarily a lithium-ion battery.