Lithium batteries can be divided into primary lithium batteries and secondary lithium batteries, secondary lithium batteries are lithium batteries composed of several secondary batteries is called secondary lithium batteries. Primary batteries are batteries that can not be recharged repeatedly, such as our commonly used No. 5, No. 7 batteries. Secondary batteries are batteries that can be recharged repeatedly, such as NiMH, NiCd, lead-acid, lithium batteries. The following is a detailed introduction to the knowledge of the secondary lithium battery pack!
Secondary lithium battery pack is a lithium battery composed of several secondary battery packs is called secondary lithium battery pack, primary lithium battery is not rechargeable lithium battery, secondary lithium battery is rechargeable lithium battery.
Primary lithium batteries are mainly used in the civilian sector: public instrument RAM and CMOS circuit board memory and backup power: memory backup, clock power, data backup power: such as a variety of smart card meter /; water meter, electricity meter, heat meter, gas meter, camera; electronic measuring instruments: intelligent terminal equipment, etc.; in the industrial collar is widely used in automation instruments and equipment: automotive electronics TPMS, oilfield oil wells, mining mines, medical equipment, anti-theft alarm, wireless communication, sea life saving, servers, inverters, touch screens, etc..
Secondary lithium batteries are often used for cell phone batteries, electric car batteries, electric car batteries, digital camera batteries and so on.
Structurally, the secondary cell undergoes reversible changes between electrode volume and structure during discharge, while the primary cell is much simpler internally because it does not need to regulate these reversible changes.
The mass specific capacity and volume specific capacity of primary batteries are greater than that of ordinary rechargeable batteries, but the internal resistance is much larger than that of secondary batteries, so the load capacity is lower.
The self-discharge of primary batteries is much smaller than that of secondary batteries. Primary batteries can only be discharged once, for example, alkaline batteries and carbon batteries belong to this category, while secondary batteries can be recycled repeatedly.
Under the condition of low current and intermittent discharge, the mass ratio capacity of primary battery is larger than that of ordinary secondary battery, but when the discharge current is larger than 800mAh, the capacity advantage of primary battery will be obviously reduced.
Secondary batteries are more environmentally friendly than primary batteries. Primary batteries must be discarded after use, while rechargeable batteries can be used repeatedly, and next-generation rechargeable batteries that meet national standards can usually be used repeatedly more than 1000 times, which means that the waste generated by rechargeable batteries is less than 1 in 1000 of primary batteries, whether from the perspective of reducing waste or from the use of resources and economic considerations, the superiority of secondary batteries is very obvious.
Post time: Dec-01-2022