Over the past few years, the development of lithium-ion battery technology has seen remarkable progress, driven by advancements in materials, manufacturing processes, and equipment. This growth has been further fueled by the rapid expansion of portable electronic devices, which has led to continuous improvements in battery performance and a wider variety of available options.
Compared to previous years, the performance of lithium-ion batteries has significantly improved. The table below highlights some key improvements:
| 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/cubic centimeter |
| Mass Energy | 100~140 | 140～165 | Wh/kg | |
| Termination Discharge Voltage | 2.7~2.75 | 2.5 to 2.75 | V | |
| Charging Temperature Range | 0 to 45 | -20~+60 | °C | |
In addition, various battery configurations and capacities have been developed to suit different applications. For example, small button-type lithium-ion batteries, cylindrical or rectangular designs, and large-capacity power batteries are now widely used to meet the needs of different electronic devices. This article focuses on the MP144350, a medium-sized lithium-ion battery produced by SAFT.
MP144350 Medium-Sized Lithium-Ion Battery
The MP144350 is a high-performance, rechargeable lithium-ion battery designed for medium-sized applications. It features a wide operating temperature range, making it suitable for harsh environments. Its compact design allows easy integration into lightweight battery packs. With a volumetric energy density of 344 Wh/cubic centimeter and a mass energy density of 143 Wh/kg, this battery offers excellent energy efficiency. It also performs well at low temperatures and maintains good charge recovery even at high temperatures. Additionally, it includes an internal safety protection circuit, requires no maintenance, and can endure over 500 charge-discharge cycles with more than 80% of its original capacity remaining after 500 cycles.
This battery is commonly used in applications such as small uninterruptible power supplies, military equipment power systems, portable radios, professional lighting tools (like miner’s lamps and emergency lights), barcode scanners, portable instruments, and payment terminals.
Main Parameters
The MP144350 has a nominal voltage of 3.75V and a rated energy of 10Wh. Its nominal capacity is 2.60Ah when charged to 4.2V and 2.35Ah when charged to 4.1V. The termination charging voltage is 4.20 ±0.05V, with a maximum charging current of 2.6A (1C). Charging is possible between -20°C and +60°C, with typical charging times of 2–3 hours at 1C, 3–4 hours at C/3, and 6–7 hours at C/5. The maximum continuous discharge current is 5A, with a pulse discharge current up to 10A. The termination discharge voltage is 2.5V, and the discharge temperature range is from -50°C to +60°C.
Size and Other Parameters
The MP144350 measures 50 mm (length) × 43 mm (width) × 14.5 mm (height), weighs approximately 68 grams, and has a volume of 28 cubic centimeters. Its rectangular shape with semi-circular sides makes it ideal for compact designs.
Safety Features
This battery includes internal safety mechanisms that protect against overheating, short circuits, overcharging, and overdischarging. These features enhance both the reliability and safety of the battery during use.
Typical Charge and Discharge Characteristics
1. Charging Characteristics: At 20°C, the battery exhibits different charging behaviors depending on the rate. When charged at 1C, the full charge time is around 2–3 hours. At C/2 and C/5 rates, it takes longer, as shown in the graph below. The charging process follows a constant current and constant voltage profile.
2. Discharge Characteristics at Different Currents: At 20°C, the battery shows stable voltage output across different discharge rates (C/5, C/2, C, and 2C). This makes it suitable for a wide range of applications where consistent power delivery is required.
3. Discharge Characteristics at Different Temperatures: The battery's performance varies significantly with temperature. At temperatures between -50°C and +60°C, the discharge curves differ. While performance remains relatively stable between +20°C and +60°C, it deteriorates at lower temperatures, leading to reduced voltage and energy output. Users should consider these factors when designing systems for extreme environments.
Usage Precautions
To ensure safe and effective operation, users should follow these guidelines: 1. Do not solder directly onto the battery's terminals. 2. Avoid disassembling or damaging the battery. 3. Never remove the built-in protection circuit. 4. Do not incinerate the battery. 5. Store the battery in a dry place with a temperature not exceeding 30°C. If stored for long periods, keep it at about 30% charge (±15%).
Dustproof Laser Level,High Precise Laser Level,Laser Spirit Level,Construction Level Laser
Guangdong Tumtec Communication Technology Co., Ltd , https://www.gdtumtec.com