Заводская акция по низкой цене 3 7 В 20000 мАч 20ah 25c Lipo одиночные ячейки и 6s12s батарейный блок количество 1000 шт.
- Категория: >>>
- Поставщик: Jiangxi Dintel Battery Technology Co. Ltd.
Сохранить в закладки 1600913153485:
Описание и отзывы
Характеристики
Product Description
NO. | Item | Specifications | ||||
1 | Minimum capacity | *25.0Ah | 0.5C@3.65~2.5V@25±2℃ | |||
2 | ACIR@1KHz | ≤1.8mΩ | 27%SOC@25±2℃ | |||
3 | Weight | About 480g (±5%) | ||||
4 | Charge cut-off voltage | 3.65V | ||||
5 | Discharge cut-off voltage | 2.5V(0℃＜T≤60℃);2.0V(-20℃≤T≤0℃) | ||||
6 | Operating voltage rang | 2.50~3.65V | ||||
7 | Nominal voltage | 3.2V | 0.5C@3.65~2.50V@25±2℃ | |||
8 | Operating temperature | Charge | 0~10℃ | 0.1C(max) to 3.65V | ||
10~15℃ | 0.2C(max) to 3.65V | |||||
16~35℃ | 0.5C(max) to 3.65V | |||||
36~55℃ | 0.5C(max) to 3.65V | |||||
Discharge | -20~60℃ | |||||
9 | Standard charge method | 0.5C CC to 3.65V,3.65V CV to 0.05C | ||||
10 | Standard discharge method | 0.5C | ||||
11 | Max charge current | 1.0C | ||||
12 | Max discharge current | 2.0C | ||||
13 | Storage temperature (27%SOC state) | 12month | -20~25℃@80%RH max | |||
6month | -20~35℃@80%RH max | |||||
1month | -20~45℃@80%RH max | |||||
Product performance description
Battery thickness 6.06mm length 241mm width 156mm weight 480g capacity 25Ah single piece of the main material is lithium iron
phosphate, the process is soft pack laminated type, high energy density, high rate, the shell is made of aluminum plastic film
material, the overall weight is light.
phosphate, the process is soft pack laminated type, high energy density, high rate, the shell is made of aluminum plastic film
material, the overall weight is light.
Grouping standard | ||||||||
Cell assembly standard | Capacity | Voltage | Internal resistance | k value | ||||
*400mAh | *5mV | 0.35mΩ | ≤0.03mV/h | |||||
Dimension & Drawing for battery (without scales)
Test Procedure and its Standard
Item | Test method | Standard | |
1 | Appearance | Visual | No Defects and Leakage |
2 | Dimension | Caliper for dimension | As item 4 |
3 | Weight | Balance | As item 3.3 |
4 | Shipment voltage | Voltmeter | 3.25~3.30V（27±3%SOC） |
5 | Initial Internal Impedance | Measure the AC impedance at 1kHz | ≤1.8mΩ (27% SOC) |
6 | Discharge Capacity | Follow standard discharge after standard charge, at 25±2℃ | *≥25.0Ah @0.5C |
7 | Cycle Life (25±2℃, With splint ,Rest for 30 min between each cycle.) | Charge: 0.5C CC charge to 3.65V, 3.65V CV charge to 0.05C cut-off; Discharge: 1C CC discharge to 2.5V | ≥80%Initial capacity @2000 cycles |
9 | Leakage Test | The battery which is fully charged shall be stored at 60±2℃ and 85±5% RH for 7 days. | No Leakage. |
10 | H/L Temp. Characteristic (Hold for 5h@55℃ or 20h@-20℃ after full charging) | Charge: 0.5C CC charge to 3.65V, 3.65V CV charge to 0.05C cut-off at 25±2℃ Discharge: 0.3C CC discharge to 2.0V at -20±2℃ ; 0.5C CC discharge to 2.5V at 55±2℃. | Discharge capacity rate: *≥50%Initial Capacity -20±2℃ *≥95%Initial Capacity 55±2℃. |
charge and discharge curve
A.Curve of cycle life
B.Curve of different discharge rate
C.Curve of different charge rate
Safety Criteria for Acceptance
Item | State | Test method | Standard |
External Short | Fully Charged | Battery terminals are short-circuited with a resistance of less than 100mΩ for 10minutes. Observe 1 hour. Tests are to be conducted at room temperature. | NO EXPLOSION AND NO FIRE. |
Over-Discharge | Empty Charged | After one standard charge and discharge, continue to discharge at a constant current of 0.5c and observe for 2 hours. | NO EXPLOSION NO FIRE AND |
Heating | Fully Charged | Put the battery into an oven at RT, and increase the temperature at a rating of 5℃/min to 130±2℃, after the oven temperature reached to 130℃±2℃, maintain for 30 minutes at that temperature before the test is discontinued.，Observe 1 hour. | NO EXPLOSION AND NO FIRE. |
Crush | Fully Charged | After 0.5C is fully charged, a half cylinder with a radius of 75mm was used to form a (5±1) mm / s is perpendicular to the battery pressure. When the battery voltage reaches 0V or the deformation reaches 30% or the extrusion force reaches 30KN, hold for 5min, stop extrusion and observe for 1H. | NO EXPLOSION AND NO FIRE. |
Overcharge | Fully Charged | Let it stand for 1 hour after charge to full charging at 0.5C,constant current and constant voltage charge to 5.0V and keep for 90 minutes. | NO EXPLOSION AND NO FIRE. |
Temperature Cycling | Fully Charged | After 0.5C is fully charged, Put the battery in 25 ℃ /-40 ℃, 25 ℃ / 75 ℃ condition transformation temperature, after recycle 5 times. observe 1h. | NO EXPLOSION AND NO FIRE. |
Seawater immersion | Fully Charged | After 0.5C is fully charged, all immersed in 3.5% brine concentration, to maintain a minimum of 2h or until thermal runaway when to stop，observe 1h. | NO EXPLOSION AND NO FIRE. |
Vibration test | Fully Charged | After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz an 55Hz, the excursion of the vibration is 1.6mm. The cell shall be vibrated for 30 minutes per axis of XYZ axes. | NO EXPLOSION AND NO FIRE. |
Drop Test | Fully Charged | The after standard charge from a height of 1 meters down to fall to the thickness of the hard board with thickness of 20mm, X, Y, Z from the positive and negative direction (six directions) in each direction, free fall 1. | NO EXPLOSION AND NO FIRE. |
Product Details & Application
Product usage introduction
Polymer lithium ion soft pack battery mainly gathers new energy vehicle gauge level industrial energy storage power supply at home and abroad, applied to household energy storage and two wheeled vehicle power supply.
Description of product use effect
This product is often used in Europe and the United States home energy storage , has a good standard size and capacity configuration.
Company Profile
Jiangxi Dintel Battery Technology Co., Ltd.
JiangxiDintel Energy Technology Co., Ltd. was founded in March 2021, located in Yichun, Jiangxi, known as the "lithium capitalof Asia"! With an annual production capacity of 2GWh, the company is an enterprise focusing on the research and development,production and sales of high-end polymer soft pack power lithium-ion batteries. The products are used in the fields of new energyvehicles, overseas home energy storage, electric garden tools, shared power change for two-wheelers, etc. The existing productsystem covers three-way lithium iron phosphate batteries. The capacity of a single cell is focused between 20-100Ah. At present,the company has obtained a total of 10 utility model, invention patents, through the continuous pursuit of technology leadershipand production process innovation, with multi-dimensional disruptive micro innovation technology, to provide global customers withhigh safety, cost-effective energy system and overall energy solutions. At the same time, we also undertake OEM and ODM orders. Whether you are selecting a product from our existing catalog or seeking help in engineering application, please feel free tocontact our customer service center and tell us your purchasing requirements.
Certifications
Sample Room
Production Process
Packing&Shipping
FAQ
1.Which model should I choose?
Tell us your demands for cells, including capacity, voltage, charge and discharge rate, application areas, etc. We will recommend you the most suitable cell model.
2.How do I guarantee product quality?
We develop raw material to produce cell , We control well in cell production process, we test performance of batteries before shipping, and provide good after-sale service.
3.What should I do if I find something wrong with batteries?
Describe your problems to us, we will quickly response to that and provide solutions as soon as possible.
4.What about price? Can I get lower price for my order?
It depends on your quantities, the more order you place, the more discount you will get.
5.Why I get different quotation for the same product during different time of the year?
The price of our cells will be adjusted if the price of raw materials changes. We have to do so in order to transfer cost pressure.
If you have more details, please fell free to contact us.
Tell us your demands for cells, including capacity, voltage, charge and discharge rate, application areas, etc. We will recommend you the most suitable cell model.
2.How do I guarantee product quality?
We develop raw material to produce cell , We control well in cell production process, we test performance of batteries before shipping, and provide good after-sale service.
3.What should I do if I find something wrong with batteries?
Describe your problems to us, we will quickly response to that and provide solutions as soon as possible.
4.What about price? Can I get lower price for my order?
It depends on your quantities, the more order you place, the more discount you will get.
5.Why I get different quotation for the same product during different time of the year?
The price of our cells will be adjusted if the price of raw materials changes. We have to do so in order to transfer cost pressure.
If you have more details, please fell free to contact us.
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