Samsung SDI unveiled plans for mass production of all solid-state batteries from 2027 on Tuesday at InterBattery Korea.
It said it published its roadmap for achieving mass-production of all solid-state batteries for the first time. It claimed its battery has the industry’s highest energy density of 900Wh/L. That is up 40% from the level posted by its P5 prismatic battery currently under production, it said.
The Korean company plans to implement this energy density in its all solid-state batteries using its proprietary solid electrolyte and anode-less technologies. The latter enables higher cathode capacity, it said.
It set up an R&D centre in Suwon last year and is now delivering samples.
“Samsung SDI’s roadmap will demonstrate that every aspect of its plan for mass-producing all solid-state battery in 2027 is well on track, from development, production line, project launch to supply chain management,” it said in a statement.
It also claimed its ultra-fast charging technology reaches 80% charge from 8% in nine minutes, “an unprecedented feat” in the industry.
It said this is made possible by optimising the lithium-ion transfer path and enabling low resistance. The company said it aims to take this technology to mass production by 2026. This technology is expected to cut charging time significantly compared to P5.
A further plan is to develop a battery by 2029 that lasts more than 20 years, achieved by strengthening the durability of materials going in.
It was also planning to exhibit a prismatic battery where the terminal is moved to the side to enhance energy efficiency and cooling efficacy.
Cell-to-pack technology for prismatic cells will demonstrate show how it reduces the number of components by more than 35% and the weight by 20%.
A vent built into the cells will prevent propagation of thermal runaway in the event of a fire or an impact by exhausting high-temperature gas, it said.
CEO of Samsung SDI Yoon-ho Choi said: “Our preparations for mass-producing next-generation products of various form factors such as all solid-state battery [sic] are well underway as we are set to lead the global battery market with our unrivalled ‘super-gap’ technology.”
Battery industry experts expressed scepticism that large format all-solid-state batteries could be produced for EVs before 2030.
Korean research body SNE Research said in its Global EV and Battery Monthly Tracker for February that Samsung SDI continued a growth trend based on the increasing sales of BMW i4/iX and Audi Q8 e-Tron as well as decent sales of Rivian R1T/R1S and Fiat 500. Its market share was 11.1%, up from 10.0% a year before. It saw a 44% year-on-year growth rate in its battery usage (excluding China) to 2.5GWh, SNE reported.
