portable energy storage power supply custom.Flywheel energy storage

　　Flywheel energy storage is the use of a high-speed rotating flywheel to store energy in the form of kinetic energy. When energy is needed, the flywheel slows down and releases the stored energy. The single technology of flywheel energy storage has a domestic foundation (but with a gap of more than 10 years compared to foreign countries), and the difficulty lies in developing new products with different functions according to different purposes. Therefore, flywheel energy storage power supply is a high-tech product, but lacks initial specificity, which makes it difficult to obtain national research funding support.

　　Disadvantages: The energy density is not high enough and the self discharge rate is high. If intermittent charging is used up, the energy will self deplete within a few to dozens of hours. Only suitable for some niche shopping malls, such as high-quality uninterruptible power supplies.

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