What is the difference between 18650 lithium battery and ordinary 18650 lithium battery?

Introduction What is the difference between 18650 lithium battery and ordinary 18650 lithium battery? The difference between 18650 lithium battery and ordinary 18650 lithium battery is as follows: 1. Lithium battery capacity.

What is the difference between 18650 lithium battery and ordinary 18650 lithium battery?

The differences between 18650 lithium battery and ordinary 18650 lithium battery are as follows:

1. The capacities of lithium batteries are different. The capacity of 18650 lithium battery is much smaller than that of ordinary 18650 lithium battery, which is less than 2000mah, about half as much.

2. The discharge current is different in size. The discharge current of 18650 lithium battery can reach about 20A, and the discharge current of ordinary 18650 lithium battery is about 1-3A.

3. The application scenarios are different. 18650 lithium batteries are mainly used in the production of new energy vehicle batteries. Ordinary 18650 lithium batteries are used in small digital devices and various power banks.

Detailed information:

< p>Difference between 18650 power lithium battery and 18650 capacity lithium battery

1. The 18650 power lithium battery mainly contains positive and negative material particles which are smaller and smaller in energy density than the ordinary 18650 lithium battery. used and the electrolyte has better electrical conductivity and better electrical conductivity.

2. The 18650 lithium battery contains more tab materials in the positive and negative electrodes than ordinary 18650 lithium battery (to reduce the internal resistance of the tabs and respond to higher current).

3. The 18650 battery supports high current discharge, which can reach a rate of 30C. Ordinary 18650 lithium battery only supports 1C discharge rate. (1C is equal to 1 times the capacity)

4. The capacity of 18650 battery is generallyabout 1/2 lower than ordinary 18650 lithium battery if the capacity is 2000mAh. is only 1000 mAh5. The maximum charging voltage of ordinary capacity 18650 lithium battery is 4.2V, and the maximum charging voltage of power type 18650 lithium battery is about 3.65V.

< p>The rated voltage of ordinary capacity 18650 lithium battery is 3.7V, and the rated voltage of power 18650 lithium battery is 3.2V.

Are lithium batteries the same as 18650 batteries?

18650 ternary lithium battery refers to a cathode material with a diameter of 18mm and a length of 65mm . , using lithium nickel-cobalt-manganate batteries with lithium or lithium-nickel-cobalt aluminate ternary cathode materials.

The ternary composite cathode material uses nickel salt, nickel cobalt salt and manganese saltas raw materials. and the manganese it contains is based on reality. Compared with lithium cobalt oxide, the battery with positive stage made of ternary material has higher battery safety, but its disadvantage is that the voltage is too low.

There are many types of positive electrode materials for lithium-ion batteries. The main positive electrode materials include lithium cobalt oxide, lithium manganate, lithium nickel oxide, ternary materials, lithium iron phosphate, etc.

Detailed information

Ternary materials are relatively balanced materials in terms of capacity and safety, and their cycle performance is better than that of normal lithium cobalt oxide. At first, for technical reasons, its nominal voltage was only 3.5 to 3.6 V. its usage range was limited. Currently, with the improvement conContinuing the formula and improving the structure, the rated voltage of the battery has reached 3.7V and the capacity has reached or exceeded the level of lithium cobalt oxide batteries. .

Baidu Encyclopedia-ternary polymer lithium battery

Baidu Encyclopedia-18650 lithium battery

Yes, 18650 battery is also a lithium battery lithium. 18650 is the originator of lithium-ion batteries - a standard lithium-ion battery model defined by the Japanese company SONY in order to reduce costs. 18 means 18mm diameter, 65 means 65mm length and 0 means cylindrical battery.

Common 18650 batteries are divided into lithium ion batteries and lithium iron phosphate batteries. The voltage of lithium ion battery is 3.6V and 4.2V, the voltage of lithium iron phosphate battery is 3.2V, the capacity is generally 1200mAh to 3000mAh, the Common capacity is 2200 mAh to 3600 mAh.

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