In recent years, a wave of innovation in the field of smart wearables has swept across the globe. As a product of the perfect integration of technology and ergonomics, wearable devices not only cover intelligent terminals worn on the body surface, but also include micro electronic systems deeply embedded in clothing accessories. From smart wristbands that monitor health to VR glasses that expand reality, from hands-free smart glasses to fashionable and technological electronic jewelry, these devices are reshaping the boundaries of human-computer interaction. Among numerous core components, battery performance directly determines the user experience of the product, making power solutions a key proposition in the development of smart wearable devices. Among numerous battery technologies, lithium-ion batteries stand out with their outstanding characteristics, mainly reflected in five technological advantages:

Advantages of lithium-ion batteries in smart wearable devices

1. High energy efficiency platform: A working voltage platform of 3.6 to 3.8 volts, which has stronger energy output capability compared to traditional batteries;

2. Leading energy density: Existing technology has achieved a mass energy density of 100-115Wh/kg and a volumetric energy density of 240-253Wh/L, which is twice as high as nickel cadmium batteries and 1.5 times higher than nickel hydrogen batteries. The theoretical limits can reach 150Wh/kg and 400Wh/L, respectively;

3. Ultra long service life: With over 500 standard charge and discharge cycles, it can even reach up to a thousand cycles in low-power scenarios, significantly extending the equipment's lifespan;

4. Safety and environmental protection features: Breaking through the dendrite problem of traditional lithium batteries, eliminating heavy metal pollution such as mercury and cadmium, and completely eliminating the memory effect problem of nickel cadmium batteries;

5. Low self energy consumption design: The monthly self discharge rate at room temperature is only about 10%, which has significant storage advantages over nickel hydrogen (30-35%) and nickel cadmium (25-30%) batteries.