Samsung SDI with first customer feedback on solid-state battery cells

Samsung SDI announced in spring that it would achieve an energy density of 900 Wh/L with its solid-state batteries and be able to start mass production in 2027. At SNE Battery Day 2024 in Korea, the company announced that it had delivered samples of its solid-state cells to customers and received positive feedback. It also stated that Samsung is using the cells in the “super-premium range” and is aiming for ranges of 900 to 1,000 kilometres.

“We have delivered samples to customers from the end of last year to the beginning of this year and have received positive feedback,” said Koh Joo-young, Vice President of Samsung SDI, in her presentation at the SNE Battery Day 2024 in Seoul.

Although Samsung SDI had already started pilot production for solid-state cells at the Suwon research centre in 2023, it did not specify a timetable for mass production at the time. Since March, there has been a concrete statement on this for the first time: 2027. However, Samsung has only given a few details about the battery technology itself. The aim is to achieve a volumetric energy density of 900 watt-hours per litre and an energy density that is 40 per cent higher than that of the prismatic cells currently in production at Samsung SDI. However, the South Korean company has not revealed target values for gravimetric energy density, which relates weight to energy content.

What is clear, however, is that a higher energy density can either lead to a longer range or to smaller and cheaper batteries with the same range. Solid-state cells are also much safer, as there is no easily flammable liquid electrolyte.

thelec.kr (in Korean) via interestingengineering.com