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How to choose a wearable device battery? What are the advantages? Views [0] Published: 2018-05-16 09:34:30

In recent years, the development of wearable technology has grown by leaps and bounds. What is a wearable device? A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. So what are the wearable devices? For example, there are sports bracelets, smart watches, smart clothing, virtual reality devices, head-mounted displays, smart accessories and more. In these wearable devices, the advantages and disadvantages of the wearable device battery directly affect the wearable device is good or bad, visible wearable device battery is a very important part of the wearable device! What are the advantages of the wearable device battery(Li-ion&Li-Polymer)?

The wearable device battery (Li-ion&Li-Polymer) has the following advantages:

    1.The working voltage of single cell battery is 3.6-3.8V;

    2.The specific energy is large. The actual specific energy that can be achieved at present is 100-115Wh/kg and 240-253Wh/L (2 times NI-Cd, 1.5 times Ni-MH). With the development of technology, the specific energy can be as high as possible. 150wh/kg and 400wh/l;

    3.Cycle life plant, generally can reach more than 500 times, or even 1000 times, for small current discharge appliances, battery life, will double the competitiveness of electrical appliances;

    4.The safety performance is good, pollution-free, no memory effect, as Li-ion predecessor lithium battery, metal lithium is easy to form dendrites and short circuit, reducing its application areas: Li-ion does not contain cadmium, lead, mercury, etc. Contamination of the environment elements; part of the process of Ni-Cd batteries, the existence of a major drawback is the memory effect, severe battery life, but Li-ion does not exist in this area;

    5.Self-discharge is small, and the self-discharge rate after full-charged Li-ion at room temperature for 1 month is about 10%, which is much lower than 25-30% for Ni-Cd and 30-35% for Ni and MH.

So,the current wearable device battery is used more Li-ion and Li-Polymer batteries.

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