February 16, 2025 – Shenzhen, China — In a groundbreaking announcement at the second China All-Solid-State Battery Innovation and Development Summit Forum on February 15, BYD’s Chief Technology Officer (CTO) Sun Huajun revealed that the company has successfully rolled off 60Ah all-solid-state batteries from its pilot production line in 2024. This milestone marks a significant step toward the mass adoption of next-generation battery technology, with BYD planning to begin demonstration installations as early as 2027 and achieve large-scale deployment by 2030.
Sun Huajun emphasized that solid-state ternary batteries are poised to become cost-competitive with their liquid-state counterparts after scaling up. Speaking on the sidelines of the forum, Sun highlighted that sulfide-based solid-state batteries—a key focus area for BYD’s R&D efforts—are expected to enter the demonstration phase from 2027 to 2029, primarily targeting mid-to-high-end electric vehicles (EVs). From 2030 to 2032, these advanced batteries will expand into mainstream EV applications.
Sun also shared insights into BYD’s strategic approach to battery innovation. He noted that lithium iron phosphate (LFP) batteries are unlikely to be phased out in the next 15 to 20 years due to their advantages in cost and material controllability. Instead, solid-state batteries will complement LFP technology, catering to different segments of the EV market.
BYD’s Commitment to Solid-State Battery Leadership
BYD’s leadership in battery innovation was further underscored by Lian Yubo, the company’s Chief Scientist, Automotive Engineer, and Dean of the Automotive Engineering Research Institute. Lian echoed Sun Huajun’s sentiments, stating that “three years will be challenging, but five years will be more realistic” for solid-state battery commercialization. He emphasized the importance of balancing cutting-edge technology with practical considerations such as cost and material availability.
BYD’s focus on solid-state battery technology aligns with its broader vision to lead the global transition to sustainable energy solutions. As a pioneer in the EV industry, BYD has consistently demonstrated its commitment to advancing battery innovation, from LFP batteries to next-generation solid-state technologies.
AI Accelerates Battery R&D Efficiency
The summit also featured insights from Ouyang Minggao, an Academician of the Chinese Academy of Sciences and Chairman of the China All-Solid-State Battery Industry-University-Research Collaborative Innovation Platform (CASIP). Ouyang highlighted the transformative impact of artificial intelligence (AI) on battery research and development. He predicted that AI could boost R&D efficiency by one to two orders of magnitude, reducing costs by 70% to 80%.
“AI enables in-depth mining and analysis of massive data sets, accelerating the discovery process and optimizing material designs,” Ouyang explained. “This is a game-changer for solid-state battery innovation, which requires precise control over complex materials and interfaces.”
Collaborative Innovation for Solid-State Battery Advancement
CASIP, jointly established by battery industry giants such as CATL and BYD in January 2024, aims to promote the academic and industrial development of all-solid-state batteries in China. The platform serves as a hub for collaboration between academia, research institutions, and industry players, fostering rapid progress in solid-state battery technology.
BYD’s Vision for the Future of Mobility
As BYD continues to lead the charge in solid-state battery innovation, its roadmap reflects a clear vision for the future of mobility. The company’s focus on sustainable energy storage solutions is not only advancing EV technology but also setting new standards for the global automotive industry.
With its 60Ah all-solid-state batteries already achieving pilot production success and plans to scale up demonstration installations by 2027, BYD is poised to play a pivotal role in shaping the next era of clean energy transportation. Its commitment to innovation, coupled with strategic collaborations and AI-driven R&D, positions BYD at the forefront of the solid-state battery revolution.
