Cylindrical cell
With the development of society, most of the common lithium manganese dioxide batteries on the market are in coin shape and cylinder shape, and the cylinder batteries are mostly in coil type electrode core structure. The flexible packaging thin battery is a new product developed.
Lithium manganese dioxide batteries typically have an open-circuit voltage of 3.3V. The value of the working voltage depends on the discharge rate and the discharge ambient temperature. The working voltage is generally 2.5-2.8V at normal temperature. The termination voltage is generally 2.0V. The battery of this system has the characteristics of flat discharge curve, good low-temperature performance (40% of rated capacity is released at -20℃), small storage life content drop (annual capacity drop is less than 1.5%), and basically no voltage lag. Generally, the capacity of a single battery is 0.025~10.SA.h.
Button batteries generally discharge only at a low current, with a very flat discharge curve that does not begin to decline until near the end of capacity.
Carbon pack batteries are usually used for equipment or instruments that work for a long time with low current. They can release more capacity than wound batteries of the same size. In the process of low current discharge, the discharge curve is quite flat. Discharge curve.
Winding batteries are suitable for high current discharge or low temperature operating conditions of equipment. During most of the discharge process, the battery's discharge curve is flat, but the voltage platform is lower than that of buckle and carbon pack batteries.
The discharge performance of flexible packaging battery is the same as that of cylindrical metal shell battery. The difference lies in that the pole piece is made very thin, and the internal structure is laminated or plate winding. Besides, the battery shell does not use metal shell but adopts multiple composite film materials, which are packaged with special technology and equipment. Compared with metal shell batteries, flexible packaging battery products with flexible structure design, thickness size can be up to Imm, can adapt to the user's requirements of various sizes, greatly improve the use of battery storage space, reduce the weight of the battery, so as to improve the specific energy of the battery.
The above is about the type of lithium manganese battery introduction, more lithium manganese cylindrical battery, welcome to contact Jiangmen Hongli lithium battery manufacturer.
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