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Lithium-ion-battery|cylindrical li-ion battery

Lithium-ion-battery|cylindrical li-ion battery

Short Description:

Lithium ion battery(Also named Li-ion battery) is very important rechargeable battery with high capacity,low self discharge rate,long cycle life as a green energy,widely used for many portable devices.


Lithium ion battery(Li-ion battery) advantages:

1-High energy density
2-High voltage
3-Low self discharge
4-No memory effect
6-Long cycle life

·3.7v 2200mAh ·7.4v 4400mAh ·11.1V 2200mAh  11.1v 6600mAh ·14.8v 4400mAh ·More batteries

What is lithium ion battery?

Lithium ion battery (Li-ion battery)is a rechargeable lithium battery that uses the Lithium alloy oxide for anode, graphite for cathode. Lithium battery application originated from pace maker, because of low self discharge rate and smooth discharge, its very suitable to be embedded into human body without frequent changing. in 1992,Sony developed the first commercial lithium ion battery, this brought revolutionary changes to portable electronics, such as the mobile phones, laptops, became smaller and lighter with the new type battery.

cylindrical li-ion battery-ws

How do they work?

The electrons get embedded into the cathode grooves when charging, when discharging, they gets out from cathode and go to anode grooves, a come and back, its a cycle.

Chemical reaction on anode when charging:
Reaction on cathode when charging
6C+XLi++Xe- = LixC6
Reaction on cathode when discharging:
LixC6 → xLi+ + xe- + 6C

lithium ion battery work way

Lithium ion battery major parameters:

Open circuit voltage:  LiCoO2 and LiMn2O4 material type are 3.7v, NiCoMn material is 3.6V
Capacity: Padre can produce 1mAh to 50Ah single cells, it can be higher by parallels.
Charging cut off voltage: 4.2V±0.05v
Discharge cut off voltage: 2.75(some IC set it higher 3.0V)v±0.05v
Charge temperature: 0~45℃
Discharge temperature: -20~60℃
Work humidity: less than 85%
Storage temperature: -20℃~40℃
Storage humidity:less than 85%
Continuous discharge current: recommend 0.2C
Max continuous discharge current: 1C
Peak discharge current: 2C
Charge current: recommend 0.5C
Max charge current: 1C

Padre Lithium ion battery cells models: 

Model Voltage Capacity(mAh) Diameter(mm) Height(mm) Weight
PDICR10440 3.7V 320 10 44 10g
PDICR14250 3.7V 280 14 25 8g
PDICR14430 3.7V 700 14 43 23g
PDICR14500 3.7V 750 14 50 25g
PDICR16650 3.7V 1700 16 65 45g
PDICR17500 3.7V 1100 17 50 36g
PDICR18500 3.7V 1400 18 50 40g
PDICR18650 3.7V 2000 18 65 50g
PDICR18650 3.7V 2200 18 65 55g
PDICR18650 3.7V 2400 18 65 58g
PDICR18650 3.7V 2600 18 65 60g
PDICR18650 3.7V 2800 18 65 62g
PDICR18650 3.7V 3000 18 65 65g
PDICR22650 3.7V 3500 22 65 95g
PDICR26650 3.7V 4000 26 65 105g
PDICR26650 3.7V 4500 26 65 115g
PDICR32650 3.7V 5000 32 65 130g

Lithium ion battery advantages:

1-High energy density. it’s energy density reaches 600Wh/kg, almost 7 times of lead acid battery.

2-Long cycle life. For example, normal mobile phone battery is lithium ion battery, they can have 500 times cycle life, generally 3 years with 100%DOD.
3- High voltage. 3.7V is about 3 times higher than NiCd and NiMh battery voltage.
4-High Power. with special design, it can have high rate discharge rate as 50C.
5-Low self discharge rate. its one if the most obvious features of lithium ion battery, generally speaking it can be as low as 1% per month, less than 1/20 of NiMh battery.
6- Light weight. With the same size, its weight can be only 1/6 of lead acid battery.
7- Environmental friendly. In production, using, and recycle procedure, no harmful metals such as lead, Cd, which poisons the earth ground and water.


Lithium ion battery pack ws

Lithium ion battery can be used for many products.

Digital electronics, mobile phones, digital cameras, laptops, panel pc, mp3,mp4, game player,cordless phone,video glass.
Transport system, GPS device, bicycle lighting, ebike, electric solo wheer bicycle.
Medical devices
Military mobile power
Industry portable test devices and tools


Lithium ion battery for emergency lighting ws

lithium ion battery for LED lights wstest device battery wsli-ion battery for solo wheel scooter wsli-ion battery medical device application ws




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