Medical equipment plays a vital role in the modern medical field, and battery it is an essential power source in medical equipment. Among many battery types, lithium batteries are widely used in medical equipment due to their advantages such as high energy density, lightweight design and low self-discharge rate. This article will introduce the types of lithium batteries commonly used in medical equipment, including lithium ion batteries, lithium polymer batteries, etc., and their application characteristics in medical equipment.

1. Lithium Ion battery:
   lithium ion battery is one of the most widely used lithium battery types at present. It has the advantages of high energy density, long cycle life, low self-discharge rate and so on, and is suitable for scenarios where stable power supply is required for a long time in medical equipment. In medical equipment, common products using lithium ion batteries include portable medical equipment, cardiac pacemakers, ventilators, defibrillators, etc. The stability and reliability of lithium ion battery make it one of the preferred power sources in medical equipment.

2. Lithium polymer battery:
   lithium polymer battery is a new type of lithium battery with thinner design, higher energy density and better safety performance, it is suitable for scenarios where the volume and weight of batteries in medical equipment are required. In medical devices, lithium polymer batteries are often used in portable devices, external defibrillators, medical instruments, etc. The flexible design and high energy density of lithium polymer battery make it one of the popular choices in medical equipment.

3. Other types of lithium batteries:
   besides lithium ion batteries and lithium polymer batteries, there are also some other types of lithium batteries, such as lithium manganese oxide batteries and lithium iron phosphate batteries. These lithium battery types also have certain applications in medical equipment, and the appropriate battery types are selected according to different requirements.

When selecting lithium batteries used in medical equipment, the following factors should be considered:

• battery capacity: select the appropriate battery capacity according to the power demand and usage time of medical equipment.
• Battery Size: Select a battery of appropriate size according to the space limit of medical equipment.
• Safety Performance: Medical equipment has high safety requirements on batteries, and lithium batteries with good safety performance are selected.
• Cycle Life: considering the service life of medical equipment, choose lithium battery with long cycle life.