SK On Accelerates Commercialization of All-Solid-State EV Batteries







Driving the Future: SK On's Solid-State Battery Revolution Arrives Early
SK On's Next-Gen EV Batteries: A Closer Look at the Accelerated Timeline
The next generation of batteries designed for electric vehicles is set to hit the market sooner than anticipated. Following the recent launch of its groundbreaking pilot manufacturing facility dedicated to all-solid-state EV batteries, SK On has revealed plans to bring this advanced battery technology to consumers ahead of its original schedule.
Unlocking Potential: The Game-Changing Impact of All-Solid-State Batteries
All-solid-state EV batteries are widely recognized as a transformative technology, poised to deliver enhanced driving ranges, quicker charging cycles, and superior overall performance compared to current lithium-ion batteries. While the potential of this innovative battery technology is immense, large-scale production has historically presented significant challenges.
Overcoming Production Hurdles: SK On's Strategic Advancements
The journey to mass-producing these cutting-edge batteries has been complex, but the landscape is rapidly changing, thanks to developments from leading global battery innovator, SK On. With the recent inauguration of its state-of-the-art pilot plant in South Korea, SK On has committed to introducing its all-solid-state EV batteries to the market a full year ahead of its initial projection.
SK On's Commercialization Goals: Energy Density and Future Prospects
SK On is now targeting the commercial release of its all-solid-state batteries by 2029. The company's initial objective is to achieve an impressive energy density of 800 Watt-hours per liter (Wh/L). Looking further ahead, SK On aims to introduce all-solid-state batteries that boast an even higher energy density of 1,000 Wh/L, signaling continuous advancements in their development.
Pioneering Innovation: The WIP-free Process at SK On's Pilot Plant
At the official opening ceremony, Seok-hee Lee, CEO of SK On, emphasized that this new pilot facility will be instrumental in the company's future progress, stating their commitment to leading the charge in bringing all-solid-state batteries to commercial reality. The 4,600-square-meter facility is notable for utilizing SK On's proprietary \"Warm Isostatic Press (WIP)-free\" technique, a first-of-its-kind application in Korea. This innovative process applies pressure to electrodes at elevated temperatures, which significantly enhances density and performance.
Enhanced Performance and Durability: Addressing Key Challenges in Battery Design
While the conventional WIP method involves applying pressure to electrodes at higher temperatures to improve density and performance, it often complicates mass production due to the intricate cell-sealing process. SK On's unique cell design elegantly sidesteps this issue, concurrently reducing internal resistance within the electrodes. Additionally, the company has refined the bond between electrodes and solid electrolytes, resulting in more fluid ion transport, consistent charging and discharging cycles, and an extended battery lifespan.
Collaborative Development and Future Research: The Daejeon Pilot Facility
The pilot plant for all-solid-state batteries is situated within the SK On Institute of Future Technology in Daejeon, approximately 150 kilometers from Seoul. The opening event drew high-profile attendees, including Andrea Maier, Head of Solid Power Korea, reflecting the strategic collaboration between SK On and Solid Power, which commenced last year to accelerate this promising new battery technology. This facility will primarily focus on developing all-solid-state batteries, though some lines will also be allocated to lithium-metal battery research and development.
Global Race for Battery Supremacy: SK On's Competitive Edge
SK On has secured patents for its innovative technology both in South Korea and internationally, positioning itself as a key player in the global pursuit of the ultimate EV battery. Numerous battery manufacturers, automotive giants, and emerging startups, including Mercedes-Benz, BMW, Volkswagen, Toyota, Nissan, CATL, BYD, and LG Energy Solutions, are also vigorously developing solid-state EV battery solutions. Recently, Mercedes-Benz showcased a modified EQS that traveled 1,205 km on a single charge with solid-state batteries, still retaining 85 miles of range. Moreover, SAIC MG launched the new MG4, heralded as the world's first mass-produced semi-solid-state electric vehicle, priced at an accessible 99,800 yuan ($14,000) in China, intensifying the race to bring this advanced technology to a broader market.