The meaning, application, classification and influence of button cell battery box
Release time:
2024-03-21
Button batteries, also known as button batteries, refer to batteries with dimensions like a small button. Generally speaking, they are larger in diameter and thinner in thickness (relative to cylindrical batteries such as No. 5 AA batteries on the market). Button cell is divided into batteries from the appearance, and the same corresponding batteries are classified into columnar batteries, square batteries and special-shaped batteries.
Button batteries, also known as button batteries, refer to batteries with dimensions like a small button. Generally speaking, they are larger in diameter and thinner in thickness (relative to cylindrical batteries such as No. 5 AA batteries on the market). Button cell is divided into batteries from the appearance, and the same corresponding batteries are classified into columnar batteries, square batteries and special-shaped batteries.
Generally speaking, there are two common types of button batteries: charged and uncharged. The charged include 3.6V rechargeable lithium ion button batteries (LIR series) and 3V rechargeable lithium ion button batteries (ML or VL series); Non-charging includes 3V lithium manganese button batteries (CR series) and 1.5V alkaline zinc manganese button batteries (LR and SR series), etc.
button batteryApplication:
Button batteries are widely used in various miniature electronic products due to their small size, with diameters ranging from 4.8mm to 30mm and thicknesses ranging from 1.0mm to 7.7mm. Generally used as backup power supplies for various electronic products, such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, remote controllers, electric toys, cardiac pacemakers, electronic hearing aids, counters, cameras, etc.
button batteryClassification:
Button batteries are also divided into two categories: chemical batteries and physical batteries, and their chemical battery applications are the most common. They are composed of an anode (positive electrode), a cathode (negative electrode) and an electrolyte thereof. As shown on the right. Its appearance is made of stainless steel and serves as the positive electrode. Its negative electrode is a round cover made of stainless steel. There is a sealing ring between the positive electrode and the negative electrode. The sealing ring is made of nylon. The sealing ring can prevent electrolyte leakage in addition to insulation. There are many types of button batteries, most of which are named after the materials used, such as silver oxide batteries, lithium batteries, alkaline manganese batteries, etc. The corresponding markings can be seen on the back of the battery:
LR-Alkaline -1.5V
SR-Silver oxide -1.55V
CR --- lithium battery -- 3V
ZA-Zinc Air -1.4V
button batteryImpact:
The vast majority of button batteries in use today are mercury-free, so there is no need to worry about their environmental impact.
Domestic and foreign battery monomer products sold in the market must be marked with mercury content (the marking method of mercury content of battery products is different from that of domestic environmental protection battery manufacturers, including "low mercury", "no mercury" or "mercury is 0" and "mercury is 0"). When consumers buy batteries, they only need to look at the mercury content of the battery to know whether it is an environmentally friendly battery.
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