ER26500+SPC1530 LiSOCL2 battery in intelligent locks

ER26500+SPC1530 LiSOCL2 battery in intelligent locks 

Lithium battery (including Lithium polymer battery, lithium ion battery, etc.) in today's digital products have very high popularity, after all the lithium battery has a relatively high discharge voltage, high energy density, high cycle life. In contrast, alkaline batteries and nickel-metal hydride rechargeable batteries can have higher power at the same volume and support more powerful electrical appliances. But for a kind of intelligent device or not applicable, this kind of equipment is the intelligent lock. This is the idea for a long time, especially in the north of the installation of intelligent lock, mainly there are several reasons: 

First, compared with the dry cell, intelligent lock requires a separate rechargeable Lithium polymer battery or lithium-ion batteries, it will need to take down the battery charging, or even on a line charge to charge separately. However, the smart lock is not a mobile phone, and it can be easily connected to the power supply or the charging bank for charging. In contrast, the dry battery in place full blood revival will be more convenient, after all, it takes several hours to charge, and it takes only a few minutes to change the battery.

Second, because smart locks are installed on the door, the winter air temperature in the north is quite cold. Don't look at the smart lock battery compartment is in the indoor panel, but the metal is thermal conductive, the outdoor temperature will be directly transmitted to the indoor panel, the temperature can still easily drop below zero, and then the fierce heating can not save it. 

That's where the fatal flaw of rechargeable Lithium polymer battery or lithium-ion batteries comes into play: sub-freezing conditions can cause lithium-ion batteries to burn out as soon as electronics are turned on, while overheating can reduce the battery's capacity. This makes lithium-ion batteries unsuitable for northern weather. This is also why, in the north of the cold winter can turn off the cell phone cold reason. 

Third, the over-discharge of a rechargeable Lithium polymer battery or lithium-ion battery will greatly affect the battery life. The power of the smart lock is very low. It can easily lead to over-discharge, which can easily lead to a complete charge and discharge. After a few times, the battery life is in trouble, it can't even be charged. And lithium battery intelligent lock is custom-made battery, can not be easily replaced, this is very troublesome. 

However, as lithium battery technology matures and becomes more widely used, what was previously thought impossible becomes more and more possible. SER GROUP has developed a non-rechargeable LiSOCL2 battery ER26500 + SPC1530 battery specifically for smart locks. 

The primmary LiSOCL2 battery ER26500 + SPC1530 battery pack have those special features:  Energy density up to 590WH/kg; self discharge rate is less than 2% per year at room temperature, which can be stored for 8-10 years, to use 5 year is no problem.

Besides, the lithium thionyl chloride battery and supercapacitor combination of the battery pack ER26500 + SPC1530 battery has the very wide Operating Temperature Range, -55 ° C to + 85 ° C, the perfect solution to the northern low Temperature problem; At its core, the battery pack offers a great deal of security, without the risk of overloading. It is believed that more and more intelligent lock products will use this lithium-ion battery pack.