The Chinese battery manufacturer Eve Energy has unveiled two new solid-state batteries. According to the company, the Longquan No. 3 and Longquan No. 4 models were produced for the first time on March 17 at its Chengdu facility. This launch is another step toward the commercialization of solid-state battery technology. However, the production samples are limited to validating manufacturing processes.
The two cell models are designed for different applications. Longquan No. 4 is intended for use in electric vehicles. It has a capacity of 60 Ah and can operate at a pressure of 5 MPa. Specific performance data for this cell were not provided. Longquan No. 3 is intended for use in consumer electronics. It operates at a stack pressure of less than 2 MPa.
Eve emphasizes that solid-state batteries require stable interfaces between solid materials. This pressure requirement is considered a key technical hurdle for the technology. Reducing it could facilitate integration into vehicles. The company claims to have made progress in this area with its new cells.
Eve Energy has been operating its facility in Chengdu since 2022. Initially, a conventional battery line with a capacity of 9 GWh was established there. At the same time, a manufacturing base for solid-state batteries was set up. According to the company, production processes for cells with a capacity between 10 and 60 Ah were established there by 2025.
Source:
https://cnevpost.com/2026/03/19/eve-energy-rolls-out-2-new-all-solid-state-batteries
