EVE Energy Solid-State Battery Mass Production Base Inaugurated in Chengdu: A Key Step Towards Commercialization

2025-09-06 | Eric

On September 2, 2025, EVE Energy officially inaugurated its solid-state battery mass production base in Chengdu, marking a significant milestone in the commercialization of all-solid-state batteries. The event featured the successful rollout of the “Longquan II” all-solid-state battery. Key attendees included Dr. Liu Jincheng, Chairman of EVE Energy; Zhu Yuan, Vice President and Director of the Science and Technology Committee; and Dr. Zhao Ruirui, Dean of the Central Research Institute.

During the ceremony, Dr. Zhao Ruirui outlined the base’s development plan. The Chengdu facility spans approximately 11,000 square meters and is expected to achieve an annual production capacity of nearly 500,000 cells once fully operational. The construction will be carried out in two phases: the first phase, set for completion in December 2025, will enable the production of 60Ah batteries. The second phase, scheduled for December 2026, aims to deliver an annual capacity of 100MWh.

The newly launched “Longquan II” is a 10Ah all-solid-state battery with an impressive energy density of 300Wh/kg and a volumetric energy density of 700Wh/L. It is designed for high-end applications such as humanoid robots, low-altitude aircraft, and AI equipment.

Vice President Zhu Yuan and Dr. Zhao Ruirui jointly unveiled the plaque for the new base, symbolizing the official commencement of operations.

Dr. Liu Jincheng and Dr. Zhao Ruirui later presided over the debut of the “Longquan II” battery.

In his address, Dr. Liu emphasized EVE Energy’s commitment to a research and development philosophy grounded in “scientific design and extensive testing.” The company adopts a rational approach to evaluating multiple battery technology pathways, ensuring technical and commercial feasibility before scaling production. EVE will continue to advance the “Longquan” battery series through multi-path development and systematic technological iteration.

To achieve the 2025 target energy density of 400Wh/kg and 1000Wh/L for solid-state batteries, EVE will dedicate substantial investment in capital, equipment, and R&D resources to accelerate the industrialization of all-solid-state batteries.

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