Cylindrical lithium battery is divided into lithium cobalt acid, lithium manganese acid, ternary materials. The three materials have different advantages and different applications. But they all belong to lithium-ion batteries, cylindrical lithium-ion batteries that use lithium-containing materials as electrodes and are representative of modern high-performance batteries.
The earliest cylindrical lithium battery is 18650 lithium battery invented by SONY in Japan in 1992. Because 18650 cylindrical lithium battery has a long history, the market penetration rate is very high. Cylindrical lithium battery adopts mature winding process, high degree of automation, stable quality of product transmission and relatively low cost.
Batteries are widely used in: notebook ,computers, digital cameras, lighting, toy products, power tools, portable energy and other fields.
Specification
Cylindrical Lithium-ion Battery 26700 4Ah
Items
Introduction
Other
1
Nominal capacity
4Ah
0.5C@25°C±2°C
2
minimum capacity
3.96Ah
0.5C@25°C±2°C
3
Nominal voltage
3.2V
4
Maximum charging voltage
3.65V
5
Minimum discharge cut-off voltage
2V
6
Internal resistance
<20mΩ（ AC ）
1KHz
7
<35mΩ（ DC ）
25°с, 50%SOC,2C(8A) discharge for 10s
8
Standard charging current
０．５Ｃ（２Ａ）
9
Standard discharge current
０．５Ｃ（２Ａ）
10
Maximum continuous charging current
１Ｃ（４Ａ）
11
Maximum continuous discharge current
２Ｃ（８Ａ）
12
Standard charging mode
At ambient temperature of 25℃+2℃, charge at 0.5C(2A) constant current until the voltage reaches 3.65V, turn to 3.65V constant voltage until the charging current drops to 0.05C(0.2a) and stop charging.
13
Standard discharge mode
At ambient temperature of 25℃±2℃ ，Stop discharging at 0.5C(2A) constant current to voltage 2.0V
14
Working temperature
Charge：0℃~55℃
40% ~ 60% SOC storage
15
Discharge：-20℃~60℃
16
Storage temperature
<1year(-20℃~25℃)
17
<3months(-20℃~45℃)
18
Battery size
Diameter：26.4±0.2mm
Height:71±0.2mm
19
Battery weight
<93g
Cylindrical Lithium-ion Battery 26700 4.5Ah
Items
Introduction
Other
1
Nominal capacity
4.5Ah
0.5C@25°C±2°C
2
Nominal voltage
3.2V
Average for Std. discharge
3
Maximum charging voltage
3.65V
4
Minimum discharge cut-off voltage
2V
5
Standard charging mode
At ambient temperature of 25℃+2℃, charge at 0.5C(2.25A) constant current until the voltage reaches 3.65V, turn to 3.65V constant voltage until the charging current drops to 0.05C(0.225A) and stop charging.
6
Standard discharge mode
At ambient temperature of 25℃±2℃ ，Stop discharging at 0.5C(2.25A) constant current to voltage 2.0V
7
Standard charging current
０．５Ｃ（２.25Ａ）
8
Standard discharge current
０．５Ｃ（２.25Ａ）
9
Maximum continuous charging current
１Ｃ（４.5Ａ）
10
Maximum continuous discharge current
２Ｃ（9Ａ）
11
battery size
Diameter：26.4±0.2mm
Height:71±0.2mm
12
battery weight
<98g
13
Storage temperature
<1year(-20℃~25℃)
40% ~ 60% SOC storage
<3months(-20℃~45℃)
14
Working temperature
Charge：0℃~55℃
Discharge：-20℃~60℃
15
Internal resistance
≤20mΩ（ AC ）
1KHz
≤40mΩ（ DC ）
25°с, 50%SOC,2C(9A) discharge for 10s
16
shell material
stainless steel
Details Features
Inner cell size
Items
Size
part
description
unit
standard
A
Total battery height
mm
71±0.2
B
Length of coding area
mm
60±1.5
C
Cell diameter
mm
26.4±0.2
D
Width of coding area
mm
10±1
E
Distance between the coding area and the top
mm
5±1.5
Application
Manufacturing Technique
Packing & Delivery
Company Profile
Beijing Hengtai Tech Co., Ltd, is a leading professional manufacturer in the field of Copper Foils and Battery in China, and with rich experience of exporting. We can offer high quality products with competitive price and warm service.
With more than 20 years experience of copper foil manufacturing,our producing capacity has reached 28000 metric tons in the year 2012. We always stand in the front of this field, develop and hold the newest technology of manufacturing the copper foils.
We have earned in high reputation in the metal and mineral area. The essential reason of our success is having a team with high quality workers who have the spirits of the pioneering, creativity, and innovation. During the harmonious co-existence with the nature and the society, we continuously create the satisfied value for the stockholders, and at the same time, our teams are also developing during the continuous creativity, and share the together-created achievements.
