The automotive world is buzzing with anticipation for the next leap in battery technology, and Chinese battery giant Eve Energy is fueling that excitement. They’ve just rolled out two new all-solid-state batteries, the Longquan No. 3 and Longquan No. 4, from their production lines, marking a significant milestone in bringing this cutting-edge tech closer to reality. It’s a move that highlights China’s relentless pace in EV innovation and its growing influence on global battery supply chains. The rollout ceremony in Chengdu, Sichuan province, wasn’t just a production event; it was a statement of intent.
### A Closer Look at the Longquan Series
The Longquan No. 3 is geared towards the consumer electronics market, boasting high volumetric energy density and the ability to perform reliably in low-pressure environments. But for us car enthusiasts, it’s the Longquan No. 4 that really grabs our attention. Primarily designed for electric vehicle power applications, it’s been upgraded to a 60 ampere-hour capacity and can currently cycle under pressures of 5 MPa or less. This isn’t just lab talk; the ability to consistently perform under specific pressures demonstrates a tangible step towards practical, real-world application. Seeing company executives witness this firsthand underscores the importance of this development.
### China’s Battery Prowess
Eve Energy’s progress didn’t happen overnight. Back in 2022, they launched a substantial 9 GWh conventional battery production line in Chengdu, which was quickly followed by the construction of a dedicated solid-state battery research and mass production base in the same city. This strategic build-up has allowed them to cultivate a diverse product portfolio spanning consumer, power, and energy storage batteries. These aren’t just for cars either; they’re finding their way into the burgeoning low-altitude economy and even humanoid robots, showcasing the versatility of Chinese battery innovation. By 2025, their Chengdu facility is set to have manufacturing capabilities for 10 to 60 Ah all-solid-state batteries, solidifying their production processes for this next-generation technology.
This isn’t the first solid-state battery from Eve Energy. Back in September 2025, they released the Longquan No. 2, targeting applications like humanoid robots and AI equipment. Now, they’re scaling up significantly, with their Chengdu facility planned to reach an impressive 100 GWh annual production capacity by December 2026. Eve Energy is betting on both sulfide and halide solid-state electrolyte technologies, showing a comprehensive approach to mastering this field.
It’s worth noting Eve Energy’s standing in the global EV battery market. In 2025, they secured the eighth spot worldwide with a 2.6% market share, according to SNE Research. This places them among industry heavyweights and highlights the competitive landscape where Chinese manufacturers are increasingly setting the pace. While solid-state batteries promise a future of enhanced safety, faster charging, and greater energy density, their integration into mass-produced EVs still faces hurdles. However, milestones like these from Eve Energy suggest that future is getting closer, potentially transforming how we experience electric driving. The pace of innovation from Chinese battery makers like Eve Energy, CATL, and BYD is relentless, pushing the entire industry forward. We’re seeing this drive in everything from advanced battery chemistries to breakthroughs in charging technology, like BYD’s flash charging, and the development of more efficient motors and battery management systems. As these technologies mature, expect them to trickle down into more accessible and exciting EVs, some of which are already making waves globally, like the MG 07 or the Xpeng G6. The race is on, and China is leading the charge.
