On March 31, Samsung SDI announced that it has begun mass production of its 4695 large cylindrical battery cells. The cells, measuring 46 mm in diameter and 95 mm in height, are being produced at the company’s Cheonan plant in South Korea. Final module assembly is being conducted at its facility in Vietnam. The first batch has been shipped to a U.S. customer for use in micro-mobility applications.
The 4695 battery features a high-nickel NCA (nickel-cobalt-aluminum) cathode and Samsung SDI’s proprietary SCN (Silicon Carbon Nano-composite) anode. The design includes a multi-tab structure that reduces internal resistance and supports high output power.
Samsung SDI initially scheduled mass production of the 46-series for a later date, but the timeline was moved forward by over a year.
Samsung SDI is currently in discussions with several electric vehicle manufacturers for the potential supply of 46-series batteries for EV applications. Specific partners and volume targets have not been disclosed.
According to industry data, the global installed capacity of power batteries in 2024 was 894.4 GWh, representing a 27.2% increase from 2023. Samsung SDI ranked seventh globally with 29.6 GWh of installed capacity. Compared to 2023, the company’s installed volume decreased by 10.6%, recording negative growth amid a generally expanding market.