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18650 Rechargeable Lithium Ion Cell 3.7V 2500mAh Storage Power Application

Good quality Deep Cycle Lithium Battery for sales
Good quality Deep Cycle Lithium Battery for sales
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18650 Rechargeable Lithium Ion Cell 3.7V 2500mAh Storage Power Application

China 18650 Rechargeable Lithium Ion Cell 3.7V 2500mAh Storage Power Application supplier
18650 Rechargeable Lithium Ion Cell 3.7V 2500mAh Storage Power Application supplier 18650 Rechargeable Lithium Ion Cell 3.7V 2500mAh Storage Power Application supplier

Large Image :  18650 Rechargeable Lithium Ion Cell 3.7V 2500mAh Storage Power Application

Product Details:

Place of Origin: China
Brand Name: Topband
Certification: MSDS
Model Number: 18650AL-2500mAh

Payment & Shipping Terms:

Minimum Order Quantity: 3000PCS
Price: Negotiable
Packaging Details: standard export carton & pallet
Delivery Time: 2~4weeks for samples; 4~6weeks for mass production
Payment Terms: T/T, L/C
Supply Ability: 450Mwh/year
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Detailed Product Description
Chemistry: NMC Norminal Voltage: 3.7V
Weight: ≤48g Nominal Capacity: 2500mAh(480mA)
Max Continue Discharge Current: 1C (not For Cycle Life)

  1. Preface

 

This specification describes the type and dimension, performance, technical characteristics, warning and caution of the lithium ion rechargeable cell. The specification only applies to 18650AN-1500mAh cells supplied by TOPBAND New Energy Company.

 

  1. Definition

 

  1. Nominal capacity

 

Nominal capacity is the initial discharge capacity of the cell, which is measured with discharge current of 300mA with 2.75V cut-off at 25℃ within 1hour after the standard charge.

Nominal capacity≥1500mAh

 

  1. Standard charge method

Under 25±2℃, it can be charged to 4.2V with constant current of 0.5C(750mA), and then, charged continuously with constant voltage of 4.2V until the charged current is 0.02C(30mA).

 

  1. Cell type and dimension
    1. Description and model
    2. Description: Cylindrical Li-ion rechargeable cell
    3. Model: 18650AN-1500mAh

18650 Rechargeable Lithium Ion Cell 3.7V 2500mAh Storage Power Application

 

Cell physical dimension listed in Figure 1(unit: mm).

3.7V 1500mAh Rechargeable 18650AN cell- 2 Years Warranty for motive power application

 

  1. Cell characteristics fresh cell tested at 25±2℃,standard charge unless otherwise specified

ITEM

 

SPECIFICATION

 

Nominal capacity

 

 

2500mah(480mA)

Nominal voltage

 

 

3.7V

Charge voltage

 

 

4.2 ±0.03V

Discharge cut-off voltage

 

 

3.00±0.03 V

MAX Charge current

 

1C (not for cycle life);Max continue charge current 0.5C

 

Max discharge current

 

2C 25℃(not for cycle life)

 

Max continue discharge current

 

1C

 

Storage temperature

 

12 months : -10~45℃

3 months : -20~45℃

1 month : -20~60℃

Humidity range

 

0~90%RH (non-condensing)

Internal resistance

 

≤20mΩ (AC Impedance, 1000 Hz)

 

 

Cell dimension

 

Height : 65.0 mm

Diameter :18.5mm Max

Weight

 

≤48g

 

  1. Technical requirements
  2. Temperature of charge :0~45℃
  3. Temperature of discharge : -20~60℃

Unless otherwise specified, all tests stated according to following:

Voltage meter: The voltage tester internal resistance is ≥ 10 KW/V

Temperature meter: The precision is ≤0.5℃

 

 

Electrochemical Characteristics

(Fresh cells, tested at 25±2℃,standard charge and discharge unless otherwise specified.

 

 

 

NO.

 

ITEM

 

CRITERION

 

 

 

 

 

 

 

 

 

 

 

5.4.1

 

 

 

 

 

 

 

Discharge rate capability

 

Test condition: Temperature : 25±2.℃

Charge: CC/CV 0.5C(1200mA) 4.20V cut off current: 0.02C(48mA)

 

Discharge: CC=2C End-of-discharge Voltage: 3.0V

2C discharge capacity retention ≥ 80%

 

 

 

 

5.4.2

 

Charge rate capability

 

Test condition: Temperature : 25±2.℃

Charge: CC variable values as the follow table; End-of-charge Voltage: 4.2V Discharge: CC 0.5C(750mA) 2.75V

 

 

 

 

 

 

 

 

 

 

 

 

 

5.4.3

 

 

 

 

 

 

 

 

Cycle life

 

Test condition:
Temperature : 25±2℃
Charge: CC/CV 0.5C (1200mA) 4.20V cut off current: 0.02C(48mA)
Discharge: CC 1C(2400mA); End-of-discharge Voltage: 3.0V
Discharge cap acity of 501th cy cle ≥80% ;

Original discharge capacity

 

 

 

 

 

 

 

 

5.4.4

 

 

 

High-Low temperature discharge performance

 

Test condition:
Charge: CC/CV 0.5C(1200mA) 4.20V cut off current: 0.02C (48mA)
High temperature discharge: put the cell at 55±3℃ for 5h, then test the discharge capacity;
Discharge: CC 0.5C(1200mA); End-of-discharge Voltage: 3.00V;
Discharge capacity retention ≥90%;

Test condition:

Charge: CC/CV 0.5C(1200mA) 4.20V cut off current: 0.02C (48mA)

High temperature discharge: put the cell at -20±3℃ for 24h, then test the discharge capacity; Discharge: CC 0.5C(1200mA); End-of-discharge Voltage:2.50V;

Discharge capacity retention ≥50%;

 

 

 

 

 

 

 

 

 

 

5.4.5

 

 

 

 

 

 

 

 

Storage performance

 

Test condition:

Charge: CC/CV 0.5C(1200mA) 4.20V cut off current: 0.02C(48mA); stored at 25℃ for 28 days

Discharge: CC 0.5C(1200 mA ); End-of-discharge Voltage: 3.0V Residual capacity: CC 0.5C(1200 mA ); End-of-discharge Voltage: 3.0V

Recovery capacity: the cell charged as the standard charge method, then discharge at CC

0.5C(1200mA), end of discharge voltage is 3.0V;

 

Residual capacity after 28days storage ≥ 80% ;

 

Recovery capacity after 28days storage ≥ 90% ;

 

 

NO.

 

ITEM

 

CRITERION

 

TESTING METHOD

 

 

 

 

 

5.5.1

 

 

 

Overcharge test

 

 

 

No leakage,No flame, No fire,No explode

Ambient Temp:25±2℃

Cell shall first be charged according to standard charge method. Then the cell is charged at 1C to 6.5V or charged at 1C for 1hr.

25±2℃

     

 

The cell is charged following the standard charge method. After charging the cell is put in the oven. And then the oven temperature will be ramped at

5℃ per minute to 130℃ and held at 130℃. When the temperature of the

cell reach 130℃, the cell is maintained in the 130℃ oven for a maximum of 30 minutes or until a fire or explosion is obtained, whichever comes

first. Record the time that the cell temperature reaches 130℃ and the time when a fire or explosion occurs.

 

 

 

 

 

 

 

 

 

 

5.5.2

 

 

 

 

 

 

130℃hot oven test

130℃

 

 

 

When the temperature of the cell is 130℃.

Cell must not fire or explode in 30 minutes

 

 

The cell is charged following the standard charge method. After charging the cell is put in the oven. And then the oven temperature will be ramped at

5℃ per minute to 130℃ and held at 130℃. When the temperature of the

cell reach 130℃, the cell is maintained in the 130℃ oven for a maximum of 30 minutes or until a fire or explosion is obtained, whichever comes

first. Record the time that the cell temperature reaches 130℃ and the time when a fire or explosion occurs.

 

 

 

 

 

 

 

 

 

 

 

 

5.5.3

 

 

 

 

 

 

Crush test

 

 

 

 

 

 

 

No fire,No explode

 

After charging a cell following the standard charge method, the cell shall
be crushed between two flat surfaces. The direction of the crushing force
shall be vertical to axis of the cylinder. The crushing force is to be applied
by a hydraulic ram with a 32mm diameter piston. Crushing force is
approximately 13 KN. Once the maximum pressure has been obtained it is to be released.
 
 
 
 

 

 

 

 

 

 

 

 

5.5.4

 

 

 

 

 

 

Short circuit test

 

 

 

 

 

 

 

No fire,No explode

 

 

 

Cell shall first be charged according to standard charge method, and then

cell is to be short-circuited by connecting the positive and negative

terminals of the cell with copper wire having a maximum resistance load less than 5 mΩ at 25 ℃ & 60 ℃. Monitor the cell temperature for 1hr

while testing.

 

 

 

 

 

5.5.5

 

Over discharge test

 

No fire,No explode, No leak

 

 

Cell shall first be charged according to standard charge method. Then the cell is discharged at 1C for 90min.

 

 

 

 

5.5.6

 

 

Drop test

 

No fire,No explode, Cell shall first be charged according to standard charge method, and then cell is

No leak

 

dropped 1.5m height on floor slab, with two directions.

 

   

 

 

 

5.5.7

 

Seawater immersion

 

 

 

No fire,No explode, No leak

 

Cell shall first be charged according to standard charge method, and then, immerse the battery in seawater (3.5wt% of salt) for 2 hours.

 

 

 

 

 

 

 

 

 

 

 

 

 

5.5.8

 

 

 

 

 

 

 

 

 

Thermal cycling

 

 

 

 

 

 

 

 

 

No fire,No explode, No leak

 

Cell shall first be charged according to standard charge method, and then:
1.Reduce the chamber temperature to -40℃ within 60min and maintain this
temperature for 90min.
2.Raise the chamber temperature to 25℃ within 60min.
3. Raise the chamber temperature to 85℃ within 90min and maintain this

temperature for 110min.

4. Reduce the chamber temperature to 25℃ within 70min. 5.Repeat the sequence for a further 4 cycles.

 

 
 
 
 
 

 

 

 

 

 

 

5.5.9

 

 

 

 

 

Low pressure

 

 

 

 

No fire,No explode,

 

 

 

 

Cell shall first be charged according to standard charge method, and then put the cell

No leak

 

at the pressure of 11.6Kpa for 6 hours.

 

   

 

 

 

 

 

 

5.5.10

 

 

 

 

Impact test

 

 

 

No flame,No fire,No explode

 

Cell shall first be charged according to standard charge method,then the
battery cell was placed on a flat surface so that the longitudinal axis of the

battery cell shall be parallel with it.

A 15.8mm diameter bar is to be placed across the center of the sample. A.9.1kg weight is to be dropped from a height of 61cm on the sample.

 

 
 

 

 

 

 

 

 

 

 

 

 

5.5.11

 

 

 

 

 

 

 

 

Incineration

 

 

When subjected to the

After full charging by the standard method, each test sample cell or
battery is to be placed on a platform table having a 4-inch diameter hole in
test no part of the center covered by a screen. The screen over the hole is to be steel wire
exploding cell shall mesh having 20 openings per inch and a wire diameter of 0.017 inch An
penetrate from the eight-sided covered wire cage, 2 feet across and 1 foot high is covered
screen such that some with a metal screen is to be constructed from 0.010inch diameter wire
test or all the cell or with 16-18 wires per inch in each direction. This wire cage is placed over
  battery protrudes to the test sample. The sample is to be placed on the screen covering the
through the screen hole in the center of the hole. It is to be heated until it explodes, or until it
  is destroyed.
   
   

 


  1. Package picture

 

Photos

 

 

3.7V 1500mAh Rechargeable 18650AN cell- 2 Years Warranty for motive power application

Photos

 

3.7V 1500mAh Rechargeable 18650AN cell- 2 Years Warranty for motive power application

 

Photos

 

3.7V 1500mAh Rechargeable 18650AN cell- 2 Years Warranty for motive power application

 

 

Small box

 

big box

 

Pallet

 

 

Contact Details
Shenzhen Topband Battery Co., Ltd

Contact Person: Jerry Yang

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