Superconductors, Solid-State Batteries and New Materials — 2026-10-20
Global battery technology is shifting toward mass production of solid-state and sodium-ion chemistries, with China’s Greater Bay Technology starting series production of solid-state cells and Samsung SDI targeting 2027 for premium market entry. Meanwhile, Japan’s Toyota and Idemitsu have formalized a collaboration to scale sulfide-based electrolyte production, while China’s new five-year plan explicitly targets large-scale commercialization of these next-generation batteries by 2030.
Superconductors, Solid-State Batteries and New Materials — 2026-10-20
Top developments
GBT begins series production of solid-state battery cells
Greater Bay Technology (GBT), supported by the GAC Group, has officially started series production of solid-state battery cells in Guangzhou as of October 14, 2026. This marks a significant transition from pilot lines to actual manufacturing for a Chinese battery developer, signaling that solid-state technology is moving beyond the laboratory phase.
Changan and CATL target 1,500 km range with solid-state cells
On October 14, 2026, Changan Automobile and CATL announced a collaboration to develop solid-state batteries capable of delivering a 1,500 km range. The partnership also involves establishing new battery production lines with a capacity of 75 GWh, focusing on both solid-state and sodium-ion cells to expand their joint venture, Times Changan.
Toyota and Idemitsu formalize sulfide electrolyte mass production
Toyota and Idemitsu Kosan announced on October 12, 2026, a collaboration to mass-produce solid electrolytes for all-solid-state batteries. The partnership focuses on developing mass production technologies for sulfide-based solid electrolytes, aiming to improve productivity and establish a robust supply chain for Battery Electric Vehicles (BEVs). This move is critical for achieving the commercial viability of Toyota's planned solid-state batteries.
Samsung SDI strengthens supply chain for 2027 mass production
Samsung SDI is accelerating its efforts to mass-produce solid-state batteries by 2027, focusing on the premium market. The company is strengthening its core material supply chain and customer collaborations, working closely with partners like EcoPro BM to secure high-quality cathode materials for sulfur-based solid-state batteries. This strategy aims to counter Japanese competitors who are leveraging patent barriers to maintain their lead.
Local view
In South Korea, media outlets are highlighting the divergent strategies of domestic giants Samsung SDI and LG Energy Solution. While Samsung SDI is pursuing a "premium first" approach with a 2027 mass production target for sulfur-based solid-state batteries, LG Energy Solution is focusing on cost innovation with a later timeline, targeting 2029 for EV applications and 2030 for robotics.
Japanese coverage from Nikkei and CNET Japan emphasizes the strategic importance of the Toyota-Idemitsu partnership in securing the supply chain for sulfide electrolytes, which are considered the most promising path to high-performance all-solid-state batteries. The collaboration is viewed as a decisive step to prevent South Korean and Chinese firms from dominating the next-generation battery market.
Context & numbers
China’s new five-year battery plan, released in late September 2026, explicitly targets the large-scale commercialization of all-solid-state batteries by 2030. The plan also supports sodium-ion and flow-battery technologies, aiming for lithium batteries with 15,000 cycles by 2030.
Sodium-ion batteries are gaining traction as a cost-effective alternative, with national standards in China taking effect in August 2026. Industry analysts predict cost parity with lithium-ion batteries by 2028, driving large-scale commercialization in energy storage and commercial vehicles.
On the radar
- 2027 Solid-State Mass Production: Multiple Asian manufacturers, including Samsung SDI and CATL, have set 2027 as the target year for mass production of all-solid-state batteries, making it a critical milestone to watch.
- Sodium-Ion Cost Parity: The industry is closely monitoring when sodium-ion batteries will reach cost parity with LFP batteries, with projections pointing toward 2028.
- Patent Wars: With Samsung SDI and LG Energy Solution holding top spots in solid-state battery patent filings, legal disputes over intellectual property could intensify as commercialization approaches.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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