Superconductors, Solid-State Batteries and New Materials — 2026-10-09
South Korea’s battery giants are accelerating solid-state commercialization with new material alliances, while China’s latest five-year plan sets aggressive 2030 targets for all-solid-state and sodium-ion mass production. Meanwhile, Australian researchers claim a new perovskite efficiency record focused on stability, and a US startup reports early vehicle-level testing that challenges established timelines.
Superconductors, Solid-State Batteries and New Materials — 2026-10-09
Top developments
Samsung SDI and EcoPro BM Target 2027 Sulfide Solid-State Commercialization
Samsung SDI and cathode maker EcoPro BM signed a memorandum of understanding on October 6 to jointly develop materials for sulfide-based solid-state batteries, aiming for commercialization by 2027. This alliance focuses on cathode and electrolyte materials, leveraging EcoPro BM’s pilot plant capabilities to build a mass production system. The move contrasts with LG Energy Solution’s strategy, which targets a 2029 launch with a focus on cost innovation rather than the earliest possible market entry.

China’s 15th Five-Year Plan Mandates 2030 Mass Production for All-Solid-State Batteries
China’s Ministry of Industry and Information Technology and six other departments released the "15th Five-Year Plan for New Battery Industry," which explicitly prioritizes breakthroughs in all-solid-state technologies for large-scale use by 2030. The plan also sets a target for lithium batteries to achieve 15,000-cycle life by 2030 and expands support for sodium-ion and flow-battery technologies. This policy shift moves solid-state batteries from a research priority to an industrial mandate, signaling a transition from pilot validation to pre-mass production.

UNSW Sets New Perovskite Submodule Efficiency Record at 23.5%
Researchers at the University of New South Wales (UNSW) have achieved a certified efficiency of 23.5% for a perovskite solar cell submodule by removing the nickel oxide layer, which significantly enhanced stability. While single-junction perovskite records remain higher (around 26-27%), this submodule record is critical for scalable manufacturing, addressing the "stability gap" that has historically hindered perovskite commercialization. The team hopes a new "secret molecule" will further solve long-term degradation issues.

US Startup Claims Vehicle-Level Solid-State Test Success
A small US startup has reported testing a solid-state battery in a real vehicle, with performance metrics that allegedly challenge Toyota’s decade-long roadmap. While specific capacity figures were not detailed in the initial report, the claim centers on achieving stable operation in a real-world automotive environment, a milestone many established manufacturers have yet to publicly confirm for their next-gen cells. This development adds pressure on legacy automakers to accelerate their own verification processes.

Local view
Japan: Japanese media is closely monitoring the supply chain implications of Toyota’s partnership with Idemitsu Kosan. Recent reports highlight that Idemitsu has begun construction of a large-scale pilot plant for solid electrolytes in Chiba, targeting completion next year to support Toyota’s 2027-2028 commercialization window. The focus is now on securing the domestic supply chain for sulfide-based electrolytes to counter Chinese speed.
South Korea: Korean financial news notes a surge in the solid-state battery sector following the post-holiday trading session, with battery ETFs rising over 2.4%. Stakeholders are interpreting the Samsung SDI-EcoPro BM MOU as a defensive move to lock in material patents and processing know-how before global competitors finalize their 2027-2028 production lines.
Context & numbers
- Efficiency Records: The current certified single-junction perovskite record stands at 26.7% (USTC), while perovskite-silicon tandems have reached 34.85% (LONGi). UNSW’s new submodule record is 23.5%.
- Battery Costs: Gotion, backed by VW, claims a path to $150/kWh for solid-state batteries with 400 Wh/kg energy density, though this remains a target rather than a current market price.
- Cycle Life Targets: China’s new plan mandates 15,000 cycles for lithium batteries by 2030, while sodium-ion home systems like AuroraCell’s promise up to 20,000 cycles.
- Market Growth: Japan’s solid-state battery market is projected to grow from $270 million in 2025 to over $1.7 billion by 2036, with a CAGR of 22.7%.
On the radar
- Idemitsu Pilot Plant Completion: Watch for the completion of Idemitsu’s Chiba pilot plant in late 2027, which will be the first major indicator of Japan’s ability to scale sulfide electrolyte production independently.
- AuroraCell Sodium-Ion Deployment: AuroraCell’s 9.7 kWh sodium-ion home battery with a claimed 20,000-cycle life is entering the market; real-world durability data will be crucial for validating sodium-ion longevity claims against LFP.
- Replication of UNSW Stability: The industry is waiting for independent labs to replicate UNSW’s nickel-oxide-free perovskite submodule stability results, as this could unlock large-scale module manufacturing if verified.
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