2024-02-04

Cylindrical lithium battery production process

A battery is a device that can convert chemical energy into electrical energy, and the battery is also called a chemical power source. Lithium batteries can be classified by different types/dimensions: According to the battery shell shape: divided into cylindrical battery, square battery, button battery According to whether it can be charged and discharged: it is divided into primary battery (primary battery) and secondary battery (storage battery) According to the electrolyte classification: can be divided into alkaline batteries, acid batteries, organic electrolyte batteries, etc. According to the electrochemical system: can be divided into zinc-air battery, zinc-manganese battery, lithium-manganese battery, lithium-iron battery, lithium sub-battery, lead-acid battery, nickel-cadmium battery, nickel-hydrogen battery, nickel-zinc battery, lithium-ion battery, sodium ion battery, fuel cell and so on.

Battery knowledge

2024-02-04

What is (charge and discharge) rate? Hour rate?

Refers to the current value required by the battery to release its rated capacity within a specified period of time. It is equal to the multiple of the rated capacity of the battery in the data value, usually represented by the letter C. For example, the nominal rated capacity of the battery is 600mAh for 1C(1 rate),300mAh for 0.5C,6A(600mAh) for 10C. And so on.

Battery knowledge

2024-02-04

What is the capacity of the battery?

The capacity of the battery is divided into rated capacity and actual capacity. The rated amount of the battery refers to the minimum amount of electricity that should be discharged under certain discharge conditions when the battery is designed and manufactured. The Li-ion stipulates that the battery is charged for 3h under the charging conditions controlled by normal temperature, constant current (1C) and constant voltage (4.2V). The actual capacity of the battery refers to the actual power released by the battery under certain discharge conditions, which is mainly affected by the discharge rate and temperature (so strictly speaking, the battery capacity should specify the charging and discharging conditions). Common units of capacity are: mAh, Ah = 1000mAh).

Battery knowledge

2024-02-04

How much does temperature affect lithium-ion batteries?

In all environmental factors, temperature has the greatest impact on the charge and discharge performance of lithium-ion batteries, lithium-ion batteries in high and low temperature environment charge and discharge, lithium-ion battery capacity retention rate has decreased.

Battery knowledge

2024-02-04

What is capacity? What is pressure drop?

In the manufacturing process of the battery, the actual capacity of the battery cannot be completely consistent due to technological reasons. The process of classifying the battery by capacity is called sub-capacity through a certain charge and discharge system.

Battery knowledge

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