Looking forward to the power and energy storage technologies in the use of the Internet of Things

Power transmission and storage technologies that may play an important role in the development path of the Internet of Things include: 1. Novel battery shapes: such as thin-film printed batteries and flexible batteries, which can be embedded in clothing or Thinergy, LG and other companies have recently demonstrated Thin flexible cable type battery products. Small size batteries are also very important for millimeter-scale system operation. 2. High power density batteries: With technologies such as siliconanode that can improve the performance of lithium-ion batteries, it is expected to improve battery performance and become smaller and lighter. 3. Electricity collection: Some systems can 'harvest' electricity from the environment to charge smart objects. Examples include electricity generated by mechanical movements such as vibrations, heat sources, solar cells, electrostatic charges, or electromagnetic radiation in the environment. Although electricity mining usually only generates a small amount of electricity, it is sufficient for simple sensing and communication objects. For example, MicroStrain has launched a strain force sensor (straingauge sensor) node that uses electricity mining technology. 4. Wireless charging: Not all objects with sensing and communication functions can supply the required power with replaceable batteries or electricity. For example, it is very troublesome to replace the battery in smartclothing, and it is impossible to replace the battery in promising IoT applications such as medical sensors implanted under the skin. Under the sponsorship of the Wireless Power Consortium (WirelessPowerConsortium) and rival organization A4WP, there are already several systems that have begun initial mass production, while others are still in the research and development stage. In addition, there is another power technology that has not yet fully exploited its potential for use in the Internet of Things, that is, supercapacitors (supercaps), which are capacitors with ultra-high power storage capabilities. Although it is generally believed that it will become a substitute for batteries, existing products have the problem of excessive leakage. However, emerging trend groups should still pay attention to whether the feasibility of supercapacitors will be improved in the future.