BAK Battery announced recently the mass production of its 21700-5.5Ah high-energy density battery cells, representing another milestone for the production of Chinese-made 21700 battery cells.

In the past two years, 21700 battery cells have gained widespread recognition in the small power battery market due to their high energy density and cost advantage compared with traditional 18650 cells. This tendency is especially noticeable in applications such as two-wheel transport tools, smart home products, electric tools, consumer electronics, and portable energy storage.

The designed capacity of 21700 battery cells has always been growing with their commercial applications expanding. Currently, the highest production capacity available in the market is 21700-5.3Ah.

After years of R&D efforts, BAK Battery has developed a slew of small power cylindrical battery products. These batteries can be adapted for various applications in professional and industrial tools, high-speed electric motorcycles, high-power vacuum cleaners, portable energy storage, robotic vacuum cleaners, etc.

BAK Battery is also planning for higher-capacity battery cells such as the 21700-5.8Ah and 21700-6.0Ah. Through continuous innovation investment, the company aims to further improve the performance of Chinese-made small-power lithium batteries.

lijiaying@chinadaily.com.cn