- Eve Energy launches two new solid-state batteries targeting electronics and EV sectors
- Chengdu facility scaling positions company for large-scale next-generation battery production
Eve Energy has advanced its next-generation battery roadmap by successfully rolling out two new solid-state battery models from its Chengdu production base. The launch marks a notable step toward commercialization, as the company transitions from development to early-stage production readiness. This milestone reinforces the strategic importance of the China-based manufacturing hub and highlights Eve Energy's growing role in the global energy storage and electric mobility ecosystem.
Introduction of Longquan No. 3 and No. 4 Batteries
The newly introduced Longquan No. 3 and Longquan No. 4 models were officially produced on March 17 during a ceremony held at the Chengdu facility. Each battery has been engineered for specific application segments, reflecting a targeted product development strategy. The Longquan No. 3 is optimized for consumer electronics, offering high volumetric energy density and the ability to operate under low-pressure conditions below 2 MPa, making it suitable for compact and portable devices.
EV-Focused Battery with Enhanced Capacity
The Longquan No. 4 variant is designed primarily for electric vehicle applications, with a capacity of 60 Ah. It operates effectively under pressures of 5 MPa or less, demonstrating early feasibility for real-world deployment. This pressure tolerance is a critical parameter in solid-state battery design, influencing stability and lifecycle performance. Initial testing indicates that this model could support practical integration into electric mobility platforms, marking a transition from laboratory-scale validation to application-oriented development.
Chengdu Facility Expansion and Manufacturing Progress
The Chengdu production base has been central to the company’s manufacturing evolution. Since commissioning a 9 GWh conventional battery line in 2022, the facility has expanded to include a dedicated solid-state battery research and production infrastructure. By 2025, it achieved manufacturing capability for cells ranging from 10 Ah to 60 Ah, establishing foundational processes for scalable production. This progression enabled the earlier launch of the Longquan No. 2 battery, targeting advanced sectors such as humanoid robotics and low-altitude aviation systems.
Technology Pathways and Production Scale-Up
The company has adopted sulfide and halide electrolyte technologies as its primary development pathways, aiming to balance performance, safety, and manufacturability. These material choices are critical for achieving higher energy densities and improved thermal stability compared to conventional lithium-ion systems. The production facility, spanning approximately 11,000 square meters, is undergoing continuous expansion and is expected to reach an annual capacity of 100 GWh by the end of 2026.
Market Position and Strategic Outlook
With a global EV battery market share of 2.6% in 2025, the company ranked eighth worldwide, indicating steady competitive positioning. The rollout of advanced solid-state battery models reflects a broader industry shift toward next-generation chemistries aimed at improving safety and energy performance. Continued investments in production scale and technology development are expected to strengthen its role across electric vehicles, consumer electronics, and emerging applications such as artificial intelligence hardware and autonomous systems.
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