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Hefei Hongye Lithium Energy Science&Technology Co. Ltd.
Contacts:
Lillian
Mobile +wechat+whatsapp:
+86 13570852925
Business phone number:
+86 0551 66105045
Enterprise address:
NO.33 Qiuju Road . High-tech zone . Hefei.Anhui.China
Email:
Lillian.Lee@ecolto.com
Rosie.wang@ecolto.com
Shirley.wo@ecolto.com
CTO: Morley.lee@ecolto.com

Cylindrical lithium titanate cell 18650 LTO battery 2.4V 1500mAh
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Description:

HC18650 Lithium Titanium Oxide cell (LTO) ,voltage:2.4V ,capacity:1500mah,under standard environment , the 1C discharge capacity≥1500mah,1C/1D 25℃ 80%DOD 10000cycle times . Adaptable to work environment,can be used in a variety of area:power system,telecom, communication base, durable and green.

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Product Detail
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lifepo4 battery cells 3.2v 6000mAh main specification:

No. Item Parameter s Remark
1 Appearance Consistent with appearance inspection standard There should be no such defects as flaw, crack, rust, leakage, which may depreciate the commercial value of cell.
2 Nominal Capacity 1.5Ah 1C room temperature≥1.5Ah
3 Nominal Voltage 2.4V 1C discharge platform
4 Internal Impedance ≤18mΩ Internal resistance measured at AC 1kHz after 50% charged.
5 Standard Charge Cut-off Voltage 2.8V
6 Standard Discharge Cut-off Voltage 1.5V
7 Maximum Continuous Charge Current 3I1(4.5A) 25℃±5℃
8 Maximum Continuous Discharge Current 5I1(7.5A) 25℃±5℃
9 (10s)Maximum Pulse Charge/Discharge Current(10s) 10I15I1(7.5A 15A) 25℃±5℃
10 5C 5I1(7.5A),<15℃ Room temperature no more than 15℃
11 Operating Temperature Range Temperature:-40~6 0℃ Humidity:≤85%RH Recommended charge/discharge current ≤0.5 I1 (0.7A), when cell temperature is lower than 0℃,Recommended cool the cell, when cell temperature is higher than 50℃.
12 Storage Temperature Range -5℃~28℃ Recommend(25±3 ℃);≤90%RH storage moisture range.
13 Dimension Diameter: 18.4±0.1mm Height: 65.3±0.1mm The detailed dimension can be found in "12 Scheme of the cell structure" of this specification.
14 Weight 43.0g±1g

lithium lto battery Test Conditions of Cell Properties

3.1Standard Test Conditions

3.1.1Standard Test Environment

Test should be conducted with new cells within 30 days after shipment from our factory and which is not cycled more than fifty times before the test.
Unless otherwise specified, all tests stated in this Product Specification are conducted at below condition:

Temperature:25 ± 5 °C . Humidity:15%~90%.
Atmospheric pressure:86kPa~106kPa. Height above sea level:≤4000m.
The room temperature mentioned in this product specification is 25℃±5 ℃.

3.1.2Standard Charge Method

Under standard test environment, a cell is charged to the standard charge cut-off voltage at a constant current of 1 I1(1.5A), then stopped charging.

3.1.3Standard Discharge Method

Under standard test environment, a cell is discharged to the standard discharge cut-off voltage at a constant current of 1 I1(1.5A), then stopped discharging.

3.1.4Initial Capacity

Under standard test environment, a fresh cell is charged in accordance with 3.1.2, and then discharged to the standard discharge cut-off voltage at a constant current of 1I1 (1.5A), the discharge capacity is defined to be initial capacity.

 

3.218650 lto battery Measuring Instruments or Apparatus

3.2.1Dimension Measuring Instrument

0.01mm。

Dimension measurement shall be implemented by instruments which accuracy should not be less than 0.01mm.

3.2.2Voltmeter

Standard class specified in the national standard or more sensitive class having inner impedance not less than 10kΩ/V.

3.2.3Ammeter

Standard class specified in the national standard or more sensitive class. Total external resistance including ammeter and wire is less than 0.01Ω.

3.2.4Impedance Meter

Impedance shall be measured by a sinusoidal alternating current method (AC 1kHz LCR meter).

 

lto battery 18650 Cell Electrochemical Performance

No. Item Test Method Criteria
1 Cycle Life Under standard test environment, a cell is charged in accordance with 3.1.2, rest 10 minutes, and then discharged in accordance with 3.1.3, rest 10 minutes prior to next charge-discharge cycle. The cell shall be continuously charged and discharged for10000 cycles. Discharge Capacity ≥ 80% * Nominal capacity after10000 cycles
2 High Temperature Cycle Life A cell is stored in an ambient temperature of 55±2 ℃ for 60min. Then at 55±2 ℃, a cell is charged to the standard charge cut-off voltage at 3.1.2, rest 15minutes, and then discharged to the standard discharge cut-off voltage at 3.1.3, rest 15 minutes prior to next charge-discharge cycle. The cell shall be continuously charged and discharged for 3000 cycles. Discharge Capacity ≥ 80% * Nominal capacity after 3000 cycles
3 Rate Charge Performance Under standard test environment, a cell is discharged in accordance with 3.1.3, rest 10 minutes, and then charged to standard cut-off voltage at a constant current of3I1 (4.5A).Calculate the ratio of charge capacity (%). Charge capacity ≥ 95% initial capacity with 3I1 (4.5A)
4 3C Cycle Life Under standard test environment, a cell is charged in accordance with 3.1.2, rest 30 minutes, and then discharged in accordance with 3.1.3, rest 30 minutes prior to next charge-discharge cycle. The cell shall be continuously charged and discharged for4000 cycles. Discharge Capacity ≥ 80% * Nominal capacity after 4000 cycles
5 Rate Discharge Performance Under standard test environment, a cell is charged in accordance with 3.1.2, rest 10 minutes, and then discharged to standard cut-off voltage at a constant current of 5I1 (7.5A).Calculate the ratio of discharge capacity (%). Discharge capacity ≥ 90% * initial capacity with 5I1(7.5A)
6 Discharge Capacity at 60 ℃ A cell is charged in accordance with 3.1.2, and stored in an ambient temperature of 60±2 ℃ for 5±0.5h, and then discharged in accordance with 3.1.3,Calculate the ratio of discharge capacity (%). Discharge capacity ≥ 98% * initial capacity at 60℃
7 Low Temperature Charge Performance A cell is discharged in accordance with 3.1.3, and stored in an ambient temperature of-20 ±2 ℃/-40 ±2 ℃ for 24±0.2h, and then charged to standard charge cut -off voltage at a constant current of 1I3 (0.5A).Calculate the ratio of charge capacity (%). Charge capacity ≥ 90%* Nominal capacity at-20℃ Charge capacity ≥ 80%* Nominal capacity at -40℃
8 Low Temperature Discharge Performance A cell is charged in accordance with 3.1.2, and stored in an ambient temperature of-20±2 ℃/-40±2 ℃for 24±0.2h, and then discharged to standard discharge cut-off voltage at a constant current of 1I1 Calculate the ratio of discharge capacity (%). Discharge capacity ≥ 90% * Nominal capacity at -20℃
Discharge capacity ≥ 80% * Nominal capacity at -40℃
9 Retention Capability and Capacity recovery at Room Temperature A cell is charged in accordance with 3.1.2, stored in an ambient temperature of 25 ±5℃ for 28 days, then discharged in accordance with 3.1.3.Calculate the ratio of discharge capacity (%).Charged in accordance with3.1.2,rest 10 minutes,discharged in accordance with3.1.2. Calculate the ratio of discharge capacity (%). The residual capacity is not less than 90% of the initial capacity, and the recoverable capacity is not less than 95% of the initial capacity at room temperature.
10 Retention Capability and Capacity Recovery at 55℃ A cell is charged in accordance with 3.1.2, and stored in an ambient temperature of 55 ±2℃for 7 days, then discharged to standard discharge cut-off voltage at a constant current of 1 I1(1.5A).Calculate the ratio of discharge capacity (%).charged in accordance with 3.1.2,rest 10 minutes,a discharged in accordance with 3.1.2. Calculate the ratio of discharge capacity (%). The residual capacity is not less than 90% of the initial capacity, and the recoverable capacity is not less than 95% of the initial capacity at 55℃

Q :Do you provide free sample ?
A: Yes, a few pcs free sample can be provided, but freight will be charged

Q: what is the warranty?
A: one year

Q:What is your payment term ?
A: T/T,L/C

Q:do you accepte OEM order ?
A: Yes,you can print yourself logo, also we can provide the design of outlook for your special battery pack

Q :How many cells you can produce per month?
A: 1.8million

Q :What is the mode of transport?
A: usually by sea

Q:Which certificates do you have
A:We have un38.3,MSDS…etc.

Fill out our short form and we will be contacting you shortly to see we how can provide a solution to your needs!

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  • Lilian 10:12 AM, Today
    Dear Sir /Madam, nice to see you ,pls let me know do you need cell or pack (pls clarify LFP or LTO )