Lithium Ion Phosphorus Battery
Description
Technical Parameters
Scope
This specification describes the type and size, performance, technical characteristics, warning and caution of the lithium ion rechargeable cell. The specification only applies to HW 40146L cell supplied by Zhejiang Xinghai Energy Technology Co., Ltd.
Definition
Rated capacity:
Rated capacity =20Ah, the capacity obtained when a cell is discharged at 5-hour rate to voltage 2.0 V at 25±2.5 OC.
Standard charge method:
At 25±2.5 OC, charged to 3.65V at a constant current of 0.5C, and then, charged with constant voltage of 3.65V until the charged current drops below 0.01C.
Standard discharge method:
At 25±2.5 OC, discharged to 2.5 V at a constant current of 1C.
Cell type, bar code, appearances, and dimensions
Cell type:HW 40146L
Cell bar code and appearances
Cell dimensions：
Cell specification (fresh cell tested at 25 ± 2.5OC, using standard charge and discharge unless otherwise specified)
|
ITEM |
SPECIFICATION |
|
Nominal capacity |
20Ah @ 0.2C |
|
Minimum capacity |
19.5Ah @ 0.2C |
|
Nominal voltage |
3.2V |
|
Max Charging voltage |
3.65 ±0.05 V |
|
Discharge ending voltage |
2.5 ±0.05 V |
|
Charge current |
Standard charge: 0.5C Max charge: 2C when T≥10 OC Max charge: 1C when 10 OC≥T≥0 OC Max charge: 0.1C when 0 OC≥T≥-10 OC |
|
Discharge current |
Standard discharge: 1C Max discharge: 3C Max instant discharge: 6C |
|
Recommended charge and discharge cell surface temperature |
Charge: 0～45 OC Discharge: -20～60 OC |
|
Maximum allowable charge and discharge cell surface temperature. Charging and discharging at these conditions will shorten cell cycle life. |
Charge: 60 OC Discharge: 75 OC |
|
Humidity range |
0～90%RH (none condensing) |
|
Internal resistance |
≤4mOhm (AC Impedance, 1000HZ) |
|
Cell dimension |
Height: 146mm Max Diameter: 41mm Max |
|
Weight |
445±10 g |
Technical characteristics
Electronic performance (fresh cell tested at 25 ± 2.5OC, standard charge and discharge unless otherwise specified)
|
NO. |
ITEM |
CRITERION |
|
|
5.1.1 |
Discharge rate capability |
discharge capacity at 1C |
≥19.2Ah |
|
discharge capacity at 3C |
≥18.6Ah |
||
|
discharge capacity at 5C |
≥18Ah |
||
|
5.1.2 |
Cycle life |
discharge capacity of 3000th cycle @ 100% DOD |
≥16Ah |
|
5.1.3 |
High-Low temperature discharge performance (0.5C discharge) |
discharge capacity at -10 OC |
≥16Ah |
|
discharge capacity at 0 OC |
≥15Ah |
||
|
discharge capacity at 60 OC |
≥19.4Ah |
||
|
5.1.4 |
Storage performance |
residual capacity after 28d storage |
≥19.2Ah |
|
recover capacity after 28d storage |
≥19.6Ah |
||
Environmental and safety characteristics
|
ITEM |
TEST METHOD |
CRITERION |
|
5.2.1 Over discharge |
Under the battery discharge to the cut-off voltage, then discharge with 0.1C, until the voltage of battery is zero. |
No explosion, no fire, no leakage |
|
5.2.2 Over charge |
After the battery fully charge, overcharge with 0.5C for one hour. |
No explosion, no fire, no leakage |
|
5.2.3 reverse charge |
After the battery fully charge, with 1/6C reverse current constant current charging for 8h. |
No explosion, no fire, no leakage |
|
5.2.4 130℃ high temperature |
After the battery is fully charged, the battery is placed in the oven for 3OC ~ 7OC / min heating rate, the temperature rose to 130 OC after the start time, and (130 ± 2) OC temperature range of security within 1h. |
No explosion, no fire, no leakage |
|
5.2.5 High and low temperature impact |
When the battery is fully charged, shelved at -40 OC for 1h, then shelved 1h at 85 OC, do such cycle for 32 times, then remove under room temperature for 6h. |
No explosion, no fire, no leakage |
|
5.2.6 Vibration |
When the battery is fully charged，put the battery on the vibration table of amplitude 2mm, frequency 10Hz-30Hz for one hour. |
No explosion, no fire, no leakage, no deformation. |
|
5.2.7 Free fall drop |
After the battery fully charge, let the battery fall from a height of 1.0m to the hard wood with thickness of 20mm, each surface for once. |
No explosion, no fire, no leakage |
|
5.2.8 Soaking |
After the battery fully charged, the battery was sink at room temperature, depth will be subject to immersion cell surface within 24 h, then take out under room temperature for 6 h. |
No explosion, no fire, no leakage |
|
5.2.9 Extrusion |
After the battery is fully charged, the battery surface with special equipment was squeezed until the batteries dimensions changed to 1 ~ 3mm. |
No explosion, no fire |
|
5.2.10 Short circuit |
When the battery is fully charged, with the internal resistance of not more than 50mΩ wires connecting to the battery positive and negative extremes for 1h. |
No explosion, no fire, no leakage |
|
5.2.11 Constant temperature/h umidity/heat |
After the battery fully charged the in the relative humidity of 90% ~ 95% of the constant temperature and humidity box, duration of 48 h, then take out under room temperature for 6 h. |
No explosion, no fire, no leakage |
|
5.2.12 Nail |
A nail (diameter : 2.5~5mm) is penetrated vertically through the center of the fully charged cells. |
No explosion, no fire, no leakage |
Warning in handling the lithium-ion cell
To prevent the possibility of the cell from leaking, heating, explosion, please observe the following precautions:
Don’t immerse the cell in water;
Don’t use and leave the cell near a heat source such as fire or heater; When charging, use a cell charger specifically for that purpose; Don’t reverse the positive and negative terminals;
Don’t discard the cell in fire or heater;
Don’t connect the cell to an electrical outlet directly; Don’t discard the cell in fire or heater;
Don’t connect the positive and negative terminal directly with metal objects;
Don’t transport and store the cell together with metal objects such as necklaces, hairpins; Don’t directly solder the cell;
Don’t pierce the cell with a nail or other sharp object;
Don’t leave the cell with low SOC for long time, it should keep the cell with around 50% for long term storage (less than 6 months). Should charge the cell to 50% SOC after each 6 months.
Shipping
During transportation , keep the battery from acutely vibration, impacting, polarization, drenching.
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Introduction:
As a leading manufacturer of Lithium Ion Phosphorus Batteries in China, we are committed to providing high-quality, efficient and reliable energy storage solutions for various industries worldwide. Our Lithium Ion Phosphorus Batteries are designed to power different devices, ranging from smartphones to laptops, electric cars and residential solar systems, among others. In this article, we will highlight the key features and benefits of our Lithium Ion Phosphorus Batteries, as well as their applications, to help our customers fully understand their value and benefits.
Key Features and Benefits:
High energy density: Our Lithium Ion Phosphorus Batteries have higher energy density compared to traditional lead-acid batteries, which means that they can store more energy in the same weight and volume. This makes them ideal for applications where space and weight are limited.
Longer lifespan: Our Lithium Ion Phosphorus Batteries have a longer lifespan compared to lead-acid batteries, thanks to their advanced electrochemistry and smart battery management systems. This reduces the overall cost of ownership and increases the return on investment for our customers.
Fast charging: Our Lithium Ion Phosphorus Batteries have the ability to charge at a much faster rate compared to lead-acid batteries, reducing the downtime of devices and increasing productivity. This feature makes them suitable for high-demand applications such as electric cars and solar energy systems.
High discharge rate: Our Lithium Ion Phosphorus Batteries can discharge at a much higher rate compared to lead-acid batteries, making them ideal for applications that require high power output such as electric cars and power tools. This feature also ensures that the battery can support sudden surges in power demands, reducing the risk of system failures.
Lightweight: Our Lithium Ion Phosphorus Batteries are lightweight, which makes them ideal for portable applications such as smartphones, tablets, and laptops. This feature also reduces the overall weight of electric cars and increases their efficiency.
Safe: Our Lithium Ion Phosphorus Batteries are designed with safety in mind, incorporating advanced safety features such as thermal management systems, short circuit protection, and overcharge protection, among others. This ensures that the battery remains safe to use in any application and reduces the risk of accidents.
Applications:
Our Lithium Ion Phosphorus Batteries are versatile and can be used in various applications, including:
Electric cars: Our Lithium Ion Phosphorus Batteries are ideal for use in electric cars thanks to their high energy density, fast charging, and long lifespan. This ensures that the car remains efficient and reliable, reducing the cost of ownership and increasing the range of the car.
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Portable devices: Our Lithium Ion Phosphorus Batteries are perfect for use in portable devices such as smartphones, tablets, and laptops, thanks to their lightweight nature, high energy density, and fast charging. This ensures that the devices remain efficient and reliable, increasing productivity and reducing downtime.
Power tools: Our Lithium Ion Phosphorus Batteries are ideal for use in power tools, thanks to their high discharge rate and long lifespan. This ensures that the tools remain efficient and reliable, reducing downtime and increasing productivity.
Conclusion:
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