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Samsung SDI Boosts Next-Gen All-Solid-State Battery ‘SolidStack’ for EVs and Robotics with Sulfide-Based ASSB Technology

Samsung SDI South Korea
Overview
Samsung SDI is concentrating on sulfide-based all-solid-state battery (ASSB) technology to dramatically enhance overall battery performance for next-generation ASSBs. The company has adopted its proprietary solid electrolyte and innovative anode-free technology for its ‘SolidStack’ ASSB line, maximizing energy density while ensuring safety and extended lifespan. By developing pouch-type batteries for robotics and prismatic-type batteries for electric vehicles (EVs), Samsung SDI is expanding battery format applicability, positioning itself as a breakthrough player in both future mobility and robotics sectors.
In Depth

Key Findings

Samsung SDI stands at the forefront of next-generation battery technology, with a concentrated focus on developing sulfide-based All-Solid-State Battery (ASSB) technology to significantly enhance overall battery performance. The company has announced its ‘SolidStack’ ASSB line, which incorporates its proprietary high-performance solid electrolyte and innovative anode-free technology. This strategy aims to maximize energy density while simultaneously ensuring battery safety and extended lifespan, positioning Samsung SDI to drive innovation in diverse application areas such as Electric Vehicles (EVs) and robotics.

Technical / Clinical Details

Samsung SDI’s sulfide-based ASSB technology fundamentally improves safety and reliability by eliminating the fire risks associated with conventional liquid electrolytes and achieving both high ionic conductivity and stability. Notably, the anode-free technology employed in the ‘SolidStack’ line obviates the need for the graphite anode found in existing lithium-ion batteries. By directly utilizing lithium metal, this technology can dramatically increase volumetric energy density. This contributes to smaller and lighter batteries, extending EV driving ranges and enhancing the operational time of robots. Furthermore, the company is developing flexible pouch-type batteries for robotics and space-efficient prismatic-type batteries for EVs. This approach of providing optimal form factors for each application caters to diverse market needs.

Background & Context

As the global adoption of electric vehicles accelerates and robotics technology advances, the demand for high-performance, safe, and long-lasting batteries has reached unprecedented levels. Conventional liquid lithium-ion batteries are approaching their limits in terms of energy density and safety, fueling high expectations for next-generation all-solid-state batteries. Samsung SDI, a company with a long history of leading battery technology innovation, views this strategic investment in sulfide-based ASSB technology as a strong commitment to maintain its leadership in the global battery market and support the future transformation of mobility and industry. This initiative is particularly significant given that competing companies in China, Japan, and Western countries are also intensely focused on ASSB development, making Samsung SDI’s efforts stand out in a fiercely competitive international landscape.

Strategic Significance & Outlook

Samsung SDI plans to further accelerate the technological development of its sulfide-based ASSB ‘SolidStack,’ aiming for commercialization starting in 2027. In the future, this ASSB is expected to nearly double the driving range of electric vehicles and significantly reduce charging times, thereby fueling explosive growth in the EV market. In the robotics sector, as batteries enabling longer operational periods and more complex tasks, they will drive innovation across a wide range of applications, from industrial robots to service robots and humanoid robots. Samsung SDI’s endeavor is anticipated to open new frontiers in battery technology and contribute significantly to the realization of a sustainable energy society.

Source: https://news.samsungsdi.com/global/click?seq=434

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