Shanghai (ZXZC)- On Dec. 15, Chinese battery supplier EVE Energy celebrated the inauguration of its headquarters R&D center, and launched its latest battery technologies and products via an online event.

Located in Huizhou city, Guangdong province, the new R&D center involves a total investment of over 2 billion yuan ($286.742 million) and covers a floor area of 145,000 square meters. It took the company 16 months to complete the construction since the ground-breaking in Aug. 2021.

Photo credit: EVE Energy

According to EVE Energy, the headquarters R&D center includes the research institutes dedicated to power batteries and battery systems, testing centers for electric and safety performances, as well as an R&D laboratory. It is capable of precisely testing and analyzing cylindrical batteries, prismatic batteries, battery modules, battery management systems, energy storage systems, etc.

Photo credit: EVE Energy

Through an online event, EVE Energy introduced a slew of new products and technologies. Of them, the next-generation large cylindrical battery (with a prototype unveiled at the event) features an energy density of 350Wh/kg and can complete a charging session in only 9 minutes.

In addition, the "π" battery system has its battery system decreased by 10% and features an energy density of up to 260Wh/kg on the basis of using the CTP (cell-to-pack) technology, highly efficient new-type composite materials, and new-type adhesives.

Moreover, the company said its in-house developed large cylindrical sodium-ion battery features a specific energy of up to 135Wh/kg, and a capacity retention ratio of 90% under 10C charging and 80% after 2,500 charge-discharge cycles. It adopts layered oxides and hard carbon as its cathode and anode materials, respectively, and the C4 aluminum shell as a carrier.