Soft-pack polymer lithium ion batteries, also known as lithium polymer batteries encapsulated in an aluminum-plastic composite film, are the mainstream power solution in modern consumer electronics. Their core characteristics and advantages stem from their unique physical structure and chemical system.
Core characteristics:
1. Structural Characteristics: Using aluminum-plastic film soft packaging instead of traditional hard metal casings gives the battery excellent shape flexibility, allowing it to be made into ultra-thin, curved, or irregular shapes.
2. Safety Characteristics: The soft-pack structure typically exhibits bulging rather than violent explosion in abnormal situations (such as overcharging or puncture), resulting in higher safety.
3. Performance Characteristics: It possesses high energy density (large capacity per unit volume or weight) and low self-discharge rate.
Core advantages:
1. Design Flexibility: The thin, lightweight, and customizable physical form perfectly meets the space and shape constraints of smartphones, wearable devices, drones, and other products.
2. Lightweight and High Reliability: While providing the same capacity, it is lighter than steel-cased or aluminum-cased batteries of the same capacity, with excellent encapsulation reliability and extremely low leakage risk.
3. Long cycle life: Under standard operating conditions, it typically boasts a good cycle life, meeting the needs of frequent daily charge and discharge cycles.
It should be noted that its casing has relatively low mechanical strength, often requiring additional protective structures during application.
| Specification | Details |
|---|---|
| Battery Type | Polymer Lithium Ion Battery |
| Model Number | UNM 542666 |
| Nominal Voltage | 3.7V |
| Capacity | 1050mAh (Minimum) | 1050mAh (Nominal) |
| Cell Energy | 3.885Wh |
| Cell Chemistry | LiCoO₂ / NCM (Customizable) |
| Cell Dimensions (Max) | 5.4*26.3*66.5mm |
| Pack Dimensions (Max) | 5.5*26.5*68.0mm |
| Weight | Approx. 17.0g |
| Battery Pack Internal Impedance | ≤ 180mΩ |
| Shipment Voltage | 3.85~4.0V (Adjustable per request) |
| Parameter | Details |
|---|---|
| Max Charge Voltage | 4.2V |
| Standard Charge Current | 0.2C (210mA) to 4.2V, CCCV Mode |
| Max Charge Current | 1.0C (1050mA) | Customizable |
| Discharge Cut-off Voltage | 3.0V |
| Standard Discharge current | 0.2C (210mA) |
| Max Continuous Discharge Current | 1.0C (1050mA) | Customizable |
| Operating Temperature | Charge: 0℃~+45℃ | Discharge: -20℃~+60℃ |
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| Battery Cell Size: Max T5.4*W26.3*H66.5mm |
Plug wire: Molex51021-2P / UL1571AWG26 / 60±3mm (Adjustable) | |
| Battery Pack Size: Max T5.5*W26.5*H68.0mm |
PCM: S-8261ABJMD-G3J-T2+8205A | |
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Polymer lithium ion batteries are widely used in various fields due to their advantages such as thinness, customizable shapes, high energy density, and good safety performance. The following are their main application areas:
These applications demonstrate the core role of polymer lithium-ion batteries in driving innovation in smart devices, and their penetration rate in fields such as healthcare and the Internet of Things is expected to further increase with future technological advancements.
All UNEMETECH rechargeable polymer lithium ion batteries undergo strict quality control and comply with international safety & transportation standards, ensuring safe and reliable performance worldwide.
"We’ve partnered with UNEMETECH for our GPS pet tracker project. The 802535 battery’s consistent capacity and cycle life across batches have eliminated our power-related reliability issues. Their technical team provided fast support and helped us optimize the BMS for our device—highly recommended!"
— Project Manager, Global IoT Tech Solutions Inc.
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