All-solid-state Battery Mass Production Line Is Subject To Various Factors

Gotion High-tech officially announced the latest progress in its all-solid-state battery technology at the 2025 Global Technology Conference.

According to reports, Gotion High-tech’s first experimental production line for all-solid-state batteries has now been fully commissioned. The entire line was developed independently in-house, boasting a designed capacity of 0.2 GWh. By leveraging key technologies—such as high-precision coating—the line has achieved a yield rate of up to 90%.

Dr. Pan Ruijun, Head of R&D for all-solid-state batteries at Gotion High-tech, revealed: "The core equipment on this experimental line is 100% domestically sourced. We have now commenced vehicle integration and road testing."

An insider at Gotion High-tech told a reporter from 21st Century Business Herald that the company opted for the sulfide-based route for its all-solid-state batteries primarily because sulfide electrolytes offer the highest ionic conductivity. However, the insider noted: "Sulfide electrolyte materials are currently not yet mature and remain expensive, which hinders mass production. Therefore, the critical challenge lies in finding ways to reduce the material costs associated with sulfide electrolytes."

Accelerating Mass Production of Solid-State Batteries

With advantages such as high energy density, superior safety, and long cycle life, solid-state batteries hold the potential to become the next generation of "revolutionary" battery technology, and they are rapidly becoming a focal point of interest for both the capital markets and the industrial sector.

Conceptually, a solid-state battery primarily refers to a lithium-ion battery that utilizes a solid electrolyte. However, in terms of practical industrialization, "semi-solid-state batteries" have emerged as an intermediate step in the current transition toward solid-state technology; these batteries incorporate solid electrolytes while retaining a small amount of liquid electrolyte. "All-solid-state batteries," conversely, refer to lithium-ion batteries in which the electrolyte, as well as both the positive and negative electrodes, exist entirely in a solid state.

From a supply chain perspective, an all-solid-state battery consists of cathode materials, solid electrolytes, and anode materials. The primary distinction between this technology and traditional lithium-ion batteries lies in the electrolyte: solid electrolytes are employed to replace the liquid electrolytes and separators typically found in conventional lithium-ion batteries.

Just recently, at the Shanghai Auto Show, Changan Automobile showcased physical prototypes of its "Golden Shield" all-solid-state battery, as well as all-solid-state battery modules designed for both automotive and robotic applications. Back in March, during an investor briefing, Changan Automobile stated that its all-solid-state battery is expected to make its debut in a functional prototype vehicle before the end of this year. The company aims to commence vehicle-integration validation for solid-state batteries in 2026 and to advance toward the gradual mass production of all-solid-state batteries in 2027.

At its auto show booth, Chery Automobile highlighted its proprietary solid-state battery—developed entirely in-house—which features an energy density of ≥400 Wh/kg, a capacity of ≥20 Ah, and dimensions of 227 mm by 165 mm.

"We anticipate mass production and vehicle integration by 2027; currently, we are conducting consistency testing and carrying out preparatory work related to battery modules," a staff member at the Chery booth revealed.

Meanwhile, on the eve of the auto show, SAIC Group President Jia Jianxu disclosed that SAIC's new-generation solid-state battery is scheduled to enter mass production and be deployed in the all-new MG4 model by the end of this year. Furthermore, in 2027, SAIC's first true all-solid-state battery—dubbed the "Guangqi Battery"—is set to make its debut.

In March 2026, Gotion High-tech unveiled its "G-Yuan" quasi-solid-state battery. As a 197 Ah prismatic cell, the G-Yuan battery boasts a cell-level energy density exceeding 300 Wh/kg and a system-level energy density exceeding 235 Wh/kg—representing an energy increase of over 36% compared to liquid-electrolyte battery systems of equivalent volume.

On April 6, 2026, Gotion High-tech stated via an interactive platform that the specific construction timeline for its 2 GWh all-solid-state battery mass production line is subject to various factors, including technological advancements, R&D progress, and market conditions. For the latest updates regarding this progress, please refer to the company's official announcements and public disclosures.

At present, Gotion's solid-state batteries have not yet entered mass production on the same scale as the company's lithium iron phosphate (LFP) batteries. Follow GBE Battery to receive the latest information on Gotion's solid-state battery developments as soon as it becomes available.