5g 431223 Lithium Ion Battery Emergency Light 70mAh 3.7V Cell

Product Specification

Lithium Polymer Battery 431223 70mAh 3.7V Apply For Lighting
Li-polymer Battery List
 

Product performance:
 
1. Good safety performance. Built in circuit protection board, with short circuit, overcharge,over discharge, shock, vibration, acupuncture, high temperature,no explosion ,etc.
2. Stable performance. Long cycle life, after 500 times of ontinuous charge and discharge,the battery capacity shall not be less than 80% of the rated capacity.
3. Small thickness and high volume utilization. Polymer lithium battery overcomes Lithium battery in the thickness of the bottleneck, to achieve ultra-thin settings, and can assemble it into a credit card. Polymer cell can achieve thickness up to less than 1 mm, in line with the current demand for mobile phones.
4. No memory effect. It can be charged and discharged at any time.
 
Application :
 
1.Blue tooth
2.airplane
3.Remote control cars, boat, aircraft, toys
4.Solar and wind power generation energy storage devices
5.Small medical equipment and portable equipment
6.Medical device,pos machine,CCTV camera,portable device,consumer electronics.
7.Smart wearable devices, smart cards, smart electronics
 
Handling of Cells
 
Consideration of strength of film package
Soft Aluminium foil
Easily damaged by sharp edge parts such as pins and needles, Ni-tabs, comparing with metal-
can-cased LIB.
Sealed edge may be damaged by heat above 100°C, bend or fold sealed edge.
 
Prohibition short circuit
 
Never make short circuit cell. It generates very high current which causes heating of the cells
and may cause electrolyte leakage, gassing or explosion that are very dangerous.
The LIP tabs may be easily short-circuited by putting them on conductive surface.
Such outer short circuit may lead to heat generation and damage of the cell.
An appropriate circuitry with PCM shall be employed to protect accidental short circuit of the
battery pack.
Mechanical shock
LIP cells have less mechanical endurance than metal-can-cased LIB.
Falling, hitting, bending, etc. may cause degradation of LIP characteristics.
 
Handling of tabs
 
The battery tabs are not so stubborn especially for aluminum tab.
Don’t bend tab.
Do not bend tabs unnecessarily.

Performance Curves of Lithium Cell:
 

1.Lithium Cell Charge Curve (Charge at 1C)  
 

2. Lithium Cell Discharge Curve (Discharge at 1C )
 

3. Lithium Cell Cycle Life Curve
 

 
Conductive Coating of Lithium Battery
A conductive coating is called pre coating, in the Lithium Battery industry usually coated on the surface of the anode current collector foil, a layer of conductive coating, coated with a conductive coating of aluminum foil is called pre coated aluminum foil or aluminum foil coating, the first experiment in the battery can be traced back to 70s, in recent years, with the new energy industry. Especially the lithium iron phosphate battery development fast, which becomes the hottest new technology and new materials.
 
The conductive coating can effectively increase the adhesion of the polar plate, reduce the usage of the binder and improve the electrical performance of the battery.