Samsung SDI Begins Construction of All-Solid-State Battery Pilot Line

Establishment of Approximately 2,000-Pyeong Pilot Line at SDI Research Institute
Introduction of All-Solid-State Battery Dedicated Manufacturing Process
President Choi Yoon-ho: "It Will Be a Foundation to Become the No.1 Company by Strengthening Technological Competitiveness"

Exterior view of the Samsung SDI Research Institute located in Yeongtong-gu, Suwon-si, Gyeonggi-do

[Asia Economy Reporter Donghoon Jeong] Samsung SDI announced on the 14th that it has recently started construction of an all-solid-state battery pilot line (S Line) within the SDI Research Center located in Yeongtong-gu, Suwon-si, Gyeonggi-do.

The pilot line will be built on an area of approximately 6,500㎡ (about 2,000 pyeong). Samsung SDI named the all-solid-state battery pilot line "S Line," taking the first letters of Solid, Sole, and Samsung SDI.

All-solid-state batteries are batteries in which the electrolyte, a key material of lithium-ion batteries, is solid rather than liquid. They are considered the future of secondary batteries due to improved safety and extended driving range. Without organic solvents, they do not catch fire, enhancing safety, and by applying lithium metal instead of graphite or silicon for the anode, energy density can be improved.

Through the S Line, Samsung SDI plans to secure not only the industry's highest level of all-solid-state battery research achievements but also production technology at once. The S Line will be equipped with dedicated facilities for manufacturing all-solid-state batteries promoted by Samsung SDI. It will introduce new processes and infrastructure, including dedicated electrode and solid electrolyte process equipment for all-solid-state batteries, and cell assembly equipment that facilitates smooth ion transfer inside the battery.

Samsung SDI has been focusing on developing all-solid-state technology, having succeeded in designing and synthesizing solid electrolytes and producing all-solid-state battery prototypes. Along with this, it developed a proprietary lithium metal anode-free structure, securing industry-leading energy density and high safety. This technology has been published in the world-renowned academic journal Nature Energy.

Yoonho Choi, President of Samsung SDI, said, "The newly constructed S Line will be the cornerstone for Samsung SDI to stand tall as a truly number one company by achieving qualitative growth with profitability superiority through ultra-gap technological competitiveness and securing the highest quality."

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