The Future Of Solid-State Batteries For Electric Cars Is Not As Smooth As Estimated, This Is The Factor

Toyota's solid-state battery prototype. (Photo: Toyota Global)

JAKARTA The solid-state battery promised as a breakthrough for electric cars with denser energy, fast charging, and high stability, is now in danger of being delayed. Experts assess the mass production target in 2026 by many manufacturers is too optimistic, hampered by technological and cost constraints.

At the 2025 Chinese Automotive Forum, Chief Scientist at China's Automotive Technology Research Center Wang Fang, identified four crucial issues that must be addressed by solid-state batteries ranging from unclear ion conduction channels, complex production processes, inadequate security controls, and high volume manufacturing challenges. In essence, the issue of technology, materials, and costs surrounding solid-state batteries may be difficult to resolve in the short term.

While theoretically offering a comprehensive advantage and enormous market potential, the question arises whether consumers will actually have the opportunity to drive solid-state battery powered vehicles as announced. These obstacles make short-term solutions difficult to achieve, despite the huge market potential.

Many companies have launched targets, such as BYD (production of the 2027 demo, large-scale 2030), Toyota (2030), and SAIC Group (2026), have announced their ambitious schedule. However, skepticism arose due to technical challenges. Analysts expect new widespread adoption to materialize in five years, keeping the dream of a solid-state battery electric car away from consumers.

Wang Fang also warned that although solid-state batteries are safer than liquid batteries, the breach of security limits could be fatal. Electric vehicle fire incidents are increasing consumer concerns. Manufacturers are now implementing strict testing, but laboratory results have not been proven in the real world.

Previously, in May 2025, the Chinese Automotive Engineers Community released an all-solid-state battery standard to prevent excessive marketing claims. This standard confirms that batteries must fully use solid electrolytes. Although SAIC and Gotion High-Tech highlight the safety of their products, real-world trials are still minimal.

On the other hand. hybrid vehicles are now popular, with growth in plug-in hybrid 31.5 percent and extended-range 16.5 percent in 2025. Liquid lithium battery technology is also rapidly advancing, such as the e-BYD platform which offers a range of 400 km with just 5 minutes of charging. The Nio battery exchange station (more than 3,000 units) helped reduce the urgency of solid-state batteries. Biaya Becomes a Big Ganjalan

Battery Intelligence reports that solid-state battery costs up to 1,200 yuan/kWh, three times the liquid lithium battery. Plus a high R&D fee, vehicles with this battery will be expensive, limiting mass market attraction in the early stages.

With the challenges of technology, security, and cost, the big question remains: will solid-state batteries fulfill promises as the future of electric cars on schedule, or should consumers wait longer? Time will answer.