How to Overcome the High-Pressure Challenge of Sulphide Solid-State Batteries—An In-Depth Analysis of Global Technical Routes [SMM Analysis]
[SMM Analysis: How to Overcome the High-Pressure Challenge in Sulphide Solid-State Batteries — An In-Depth Analysis of Global Technical Routes] On September 1, 2026, China FAW, in collaboration with Eastern Institute of Technology, achieved a major technical breakthrough in the low-pressure operation of sulphide all-solid-state batteries. The related results were published in the top international journal Advanced Energy Materials under the title "Ion-Elastomer Interface Enables Low-Pressure, High-Stability Solid-State Batteries." Addressing the industry bottleneck that all-solid-state batteries generally require an operating pressure above 20 MPa, the two parties successfully achieved stable cycling of large-capacity sulphide all-solid-state battery cells under a low pressure of 5 MPa through material morphology control, low-pressure cell structure design, and preparation process optimization. This breakthrough marks a key step forward for China in the core technologies essential for the practical application of sulphide all-solid-state batteries.