グラフェンの新素材化 -リチウムイオン電池

伝統的な技術により、グラフェンは骨移植能力を持つ新素材になります-リチウム-イオン電池装置


2022年11月07日

Recently, Wei Zhixiang, a researcher of the National Nanoscience Center (hereinafter referred to as the "Center"), led the project "Development of Flexible Lithium Ion Battery with Carbon Nanotube Composites" of the Beijing Science and Technology Commission, which passed the acceptance of the expert group, and successfully completed the task.

The Wei Zhixiang team of the Center innovatively replaced the copper foil and aluminum foil collectors used in traditional lithium ion batteries with nano composite materials that can be prepared in a large area, and realized the flexibility of the cell body, and the active substances were not easy to fall off during the bending process. Through continuous improvement and innovation, the performance of flexible battery has not been reduced even when it is wound or repeatedly bent for tens of thousands of times. In addition, under the guidance of the collaborative innovation drive of industry, university and research, the Center has realized the application verification of flexible batteries in smart watch straps and night running warning wristbands through cooperation with Lenovo Innovation Research Institute, and all measured data have met the practical requirements.(Lithium - Ion Battery Equipment)

In the next step, the center will be guided by market demand, further adapt to the diversity of intelligent wearable devices, meet the requirements for higher battery capacity and stability, develop special-shaped flexible batteries that can adapt to various shapes, and make original innovations in developing active materials with higher specific capacity and non liquid electrolytes with high ionic conductivity, building new flexible battery systems, etc, Promote the continuous improvement of domestic flexible battery technology to provide a solid guarantee for developing the wearable device market.

The application fields of intelligent wearable devices cover fitness and health, medical care and health care, industry and specialty, information and entertainment, etc. They have received extensive attention in recent years and become a hot spot of consumer electronics. Industrial giants have also begun to deploy intelligent wearable devices, and the market has developed rapidly. According to the latest report released by market research institute IDTechEx, the market size of wearable devices will exceed 30 billion dollars in 2016, and will reach 150 billion dollars by 2026. When lightweight and miniaturization become the key competitive points, the breakthrough innovation of flexible battery technology will be an important link for the smart wearable market to enter the high-speed development period and the mature period of the market.

From the Internet era to the mobile Internet era, and then to the Internet of Things era, intelligent wearable devices will become the support of consumers' Internet of Things. While realizing functional innovation, the innovation of battery technology has become the key to the rapid development of intelligent wearable devices. Flexible lithium-ion battery has excellent performance and bendability, which can effectively use the "invalid" space of intelligent wearable devices to solve the battery endurance problem.
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