In recent years, the advancement of lithium-ion battery materials, manufacturing processes, and equipment has led to significant improvements in battery performance. This has also driven the rapid growth of portable electronic devices. As a result, lithium-ion batteries have become more efficient and available in a wider range of forms.
Compared to previous years, the performance of lithium-ion batteries has seen remarkable progress, as illustrated in the table below:
| Parameter | 1995–2000 | 2001–2005 | ||
| Unit | ||||
| Annual Product | Annual Product | |||
| Working Temperature Range | -20~+60 | -50~+60 | °C | |
| Output Voltage | 3.6~3.7 | 3.7~3.75 | V | |
| Energy Density | Volume Energy | 200~280 | 300~350 | Wh/cm³ |
| Mass Energy | 100~140 | 140~165 | Wh/kg | |
| Termination Discharge Voltage | 2.7~2.75 | 2.5~2.75 | V | |
| Charging Temperature Range | 0~45 | -20~+60 | °C | |
Batteries with different shapes and capacities have been developed to meet the needs of various electronic devices. For example, small button-type lithium-ion batteries, cylindrical or rectangular designs, and large power batteries are now available. This article focuses on the MP144350 medium-sized lithium-ion battery from SAFT.
MP144350 Medium-Sized Lithium-Ion Battery
The MP144350 is a high-performance, medium-sized rechargeable lithium-ion battery designed for a wide range of applications. Key features include a broad operating temperature range, excellent energy density, low-temperature performance, long-term storage capability, and an internal safety protection circuit. It can be used in small uninterruptible power supplies, military equipment, portable radios, professional lighting systems, barcode scanners, and mobile payment terminals.
Main Parameters
Key specifications of the MP144350 include: - Nominal voltage: 3.75V - Rated energy: 10Wh - Nominal capacity: 2.60Ah at 4.2V, 2.35Ah at 4.1V - Termination charge voltage: 4.20 ± 0.05V - Maximum charging current: 2.6A (1C) - Charging temperature range: -20°C to +60°C - Maximum continuous discharge current: 5A (pulse up to 10A) - Discharge voltage: 2.5V - Discharge temperature range: -50°C to +60°C
The MP144350 has a rectangular design with semi-circular sides. Its dimensions are 50 mm (length) × 43 mm (width) × 14.5 mm (height), weighing approximately 68 grams and having a volume of 28 cm³.
Safety Features
This battery includes built-in safety mechanisms that protect against overcharging, over-discharging, short circuits, and overheating, ensuring reliable and safe operation under various conditions.
Typical Charge and Discharge Characteristics
1. Charging Characteristics: At 20°C, the battery charges at rates of 1C, C/2, and C/5. Full charge (to 4.2V) typically takes 2–3 hours at 1C. The charging process involves constant current followed by constant voltage.
2. Discharge Characteristics: At 20°C, the battery shows stable voltage at different discharge rates (C/5, C/2, C, 2C). The discharge curve indicates smooth performance, especially at 1C.
3. Temperature Performance: The battery performs well between +20°C and +60°C, but its performance drops significantly at lower temperatures (-50°C to -40°C), with reduced voltage and energy output. Users should ensure that their devices can operate within these limits.
Usage Tips
To ensure safe and effective use of the MP144350: - Do not solder directly onto the battery terminals. - Avoid breaking or disassembling the battery. - Never remove the internal protection circuit. - Do not incinerate or expose the battery to fire. - Store the battery in a dry place with a temperature not exceeding 30°C. - For long-term storage, keep the battery at 30% to 45% charge.
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