In the current booming wearable device market, lithium batteries, as key power supply components, are constantly meeting the diverse and personalized demands of wearable devices through customized development paths, driving innovation and progress throughout the entire industry.

There are various types of wearable devices, including smart bracelets, smart watches, smart glasses, sports accessories, etc., and their requirements for lithium batteries are different. Take smart bracelets as an example. They are compact in size and have strict requirements for battery size, weight and battery life. As a professional manufacturer of lithium batteries for wearable devices, our company is capable of customizing suitable battery solutions based on these demands. For instance, the PATL371229 smart bracelet battery solution features numerous characteristics. Its operating temperature range is wide, reaching -20 ℃ to 55℃, and it can adapt to use in different environmental temperatures. Supports fast charging, allowing for continuous fast charging without memory effect, making it convenient for users to recharge at any time. Light in weight, large in capacity, good in low-temperature performance, and capable of high-rate charging and discharging, it meets the demands of long-term use and rapid response of smart bracelets. It is equipped with an internal protection board, featuring protection functions such as short circuit, overcharge and overdischarge, ensuring safe and reliable use. Ultra-long lifespan. After 500 continuous charge and discharge cycles, the battery capacity is no less than 80%. It has strong plasticity and can be customized into any special shape according to the internal space of the bracelet, such as arc, circle, etc. Even ultra-thin thickness can be customized. Meanwhile, it has passed the ISO 9001 quality system certification, as well as UL, UN, CE, RoHS, REACH and other certifications, meeting the green environmental protection standards.

In the field of smart clothing, the customized demand for lithium batteries in wearable devices is even more unique. Smart clothing requires batteries to have high flexibility, stretchability and safety to adapt to various deformations during wearing. Our company, by leveraging textile technology, weaves fibrous electrodes and electrolytes into fabric or makes flexible films to embed into clothing. For instance, the smart sportswear of a certain technology company in Canada is equipped with a flexible lithium-ion battery with a special fiber structure design. It can freely stretch along with human movement and work stably in harsh environments. When exercising, power the sensors to monitor heart rate, body temperature and other data in real time and transmit them to the mobile phone application, providing personalized exercise guidance and health analysis. The luminous evening gowns of high-end fashion brands are equipped with flexible lithium-ion batteries to power the light-emitting components, highlighting the wearer's charm while ensuring comfort and aesthetic appeal.

In the field of medical wearable devices, the requirements for battery safety and stability are almost strict. For instance, a wearable heart monitoring patch developed by a medical technology company in the United States uses a custom flexible lithium-ion battery for continuous power supply. It closely adheres to the skin on the chest and monitors the electrical activity data of the heart 24 hours a day, wirelessly transmitting it to the doctor's monitoring platform. The flexible electrical stimulation physiotherapy device for rehabilitation treatment, relying on the small, light and bendable characteristics of the battery, is convenient for patients to wear and use in daily life, enhancing the effect and convenience of rehabilitation treatment.

To better meet the customized demands of wearable devices for lithium batteries, our company has been constantly innovating in aspects such as electrode materials, electrolytes and battery structures. In terms of electrode materials, two-dimensional materials such as carbon nanotubes and graphene are selected to construct a flexible conductive network and load active materials to enhance the battery's conductivity, mechanical properties and specific capacity. In terms of electrolytes, gel polymer electrolytes and solid electrolytes are adopted. The former addresses ion conduction during battery deformation, while the latter enhances safety and stability, curbs the growth of lithium dendrites, and extends the battery's cycle life. In terms of battery structure design, the block battery is miniaturized and modularized. A flexible array is formed by connecting millimeter-sized micro lithium batteries with extendable circuits, or a stretchable structure is created by drawing on origami, wave and other shapes to ensure the electrochemical performance of the battery when it deforms in multiple directions. Through these customized efforts, lithium batteries will continue to play a key role in the wearable device field, helping wearable devices achieve more functional innovations and experience upgrades.