In modern medical equipment, power system reliability and efficiency are the key factors to ensure the normal operation of the equipment. With the increasing demand for portability and high-performance power supply, polymer lithium battery has gradually become the preferred solution for medical equipment power supply due to its unique advantages. This article will deeply discuss the application, advantages and related technical characteristics of polymer lithium battery in medical equipment.

I. Basic concepts of polymer lithium batteries

Polymer Lithium Battery (Polymer Lithium Battery, referred to as PLB) is a Lithium Battery using Polymer electrolyte. Compared with traditional liquid electrolyte batteries, polymer lithium batteries have higher energy density, lighter weight and more flexible shape design. This kind of battery usually uses lithium nickel cobalt manganese oxide (NCM) or lithium iron phosphate (LFP) as the cathode material, graphite as the anode material, and polymer electrolyte provides it with excellent safety and environmental adaptability.

II. Application of polymer lithium battery in medical equipment

1. portable Medical Equipment
   with the popularity of home care and telemedicine, portable medical devices (such as blood glucose meters, portable ultrasound devices, heart rate monitor, etc.) are becoming more and more popular in the market. Because of its light weight and high energy density, polymer lithium battery has become the ideal power supply for these devices, which can provide long-term power support and ensure the normal operation of the devices without external power supply.

2. Implanted medical equipment
   Implanted medical devices (such as cardiac pacemakers, nerve stimulator, etc.) have very high requirements on power supply. Polymer lithium battery can not only provide stable voltage and long service life, but also be designed to be small and suitable for narrow implantation space. In addition, its low temperature characteristics and high safety make the polymer lithium battery very suitable for internal use of human body.

3. Monitoring equipment
   in the field of medical monitoring, real-time monitoring of patients' physiological parameters (such as electrocardiogram, blood oxygen saturation, etc.) is crucial. Lithium polymer batteries can provide stable and lasting power for these monitoring devices to ensure real-time data transmission and accuracy.

4. Medical Imaging Equipment
   polymer lithium batteries are also widely used in some portable imaging devices (such as mobile X-ray machine and ultrasonic devices). Because these devices usually require high power support, lithium polymer batteries can quickly release large current to meet the instantaneous power demand of medical imaging.

III. Advantages of polymer lithium batteries

1. high energy density
   the energy density of polymer lithium batteries is usually between 150-250 Wh/kg, which is much higher than that of traditional Ni-MH batteries and lead-acid batteries. This means that batteries of the same weight can provide more electric energy and meet the high requirements of medical equipment for power supply.

2. Security
   lithium polymerCompared with liquid electrolyte battery, battery has lower leakage risk and higher thermal stability. Polymer electrolyte is less prone to thermal runaway under high temperature and short circuit conditions, which reduces the risk of fire and explosion, and is especially suitable for application in medical field.

3. Flexible shape and design
   the shape design of polymer lithium battery is flexible and can be customized according to the space requirements of different equipment. For example, in an implanted device, the battery can be designed to be very thin and compact, perfectly adapted to the shape of the device.

4. Good cycle life
   the cycle life of polymer lithium battery is usually more than 500-1000 times, which has good durability. This is especially important in medical devices, because these devices usually need to operate for a long time, and frequent battery replacement will increase maintenance costs and inconvenience.

5. Low self-discharge rate
   the self-discharge rate of polymer lithium batteries is relatively low, usually below 1%. This means that the battery can maintain a high power even if it is not used for a long time, ensuring that the equipment is available at any time.

IV, polymer lithium battery technical features

1. fast charging capability
   polymer lithium battery can charge a large amount of electric energy in a short time, which makes medical equipment available during use.To quickly replenish power and reduce downtime.

2. Wide operating temperature range
   the lithium polymer battery can work normally in the temperature range of-20°C to 60°C and adapt to various medical environments. This feature ensures the stability and reliability of the equipment under different climatic conditions.

3. Environmental protection
   polymer lithium batteries do not contain harmful metals and meet environmental protection requirements. In the use of medical equipment, reducing the impact on the environment is an important consideration.

4. Monitoring and Management System
   many lithium polymer batteries are equipped with battery management system (BMS), which can monitor the charging status, temperature, voltage and other parameters of the battery in real time to ensure the safe and efficient use of the battery.

Polymer lithium battery has become an indispensable power supply choice in modern medical equipment due to its advantages of high energy density, safety, flexibility and long service life. No matter portable equipment, implanted equipment or monitoring equipment, lithium polymer batteries show excellent performance and meet the strict requirements of medical industry for power supply.