The global solid-state battery industry is entering a period of rapid technological evolution. The post-stage formation and grading process is a critical step that determines core cell performance, batch consistency, and service life. Unlike conventional lithium batteries, solid-state batteries operating under ultra-high-pressure conditions introduce special process requirements such as gas evolution and the coupling of high temperature and high pressure. Traditional equipment struggles to meet these stringent ultra-high-precision process demands and also lacks adequate safety protection capabilities. Lyric's high-pressure formation and grading machine, after rigorous technical refinement and continuous iteration, provides solid technical support for the post-stage manufacturing of solid-state batteries, thanks to its exceptional process control capabilities and a comprehensive safety system tailored for solid-state batteries.

Precise Control of Process Parameters, Safeguarding Quality Benchmarks

Due to the special characteristics of solid-solid interface coupling, the formation process for solid-state batteries demands significantly higher precision in pressure, current, voltage, and temperature control than conventional lithium battery processes. Lyric's ultra-high-pressure formation and grading machine achieves a widely adjustable clamping pressure range from 1 to 200 tons, with pressure accuracy stably controlled within ±1% RD. Current accuracy reaches ±0.03% F.S., voltage accuracy reaches ±0.02% F.S., and the chamber temperature uniformity error is strictly controlled within ±2°C.To address the industry-wide pain point of uneven pressure distribution across the fixture, the equipment incorporates a dual calibration solution. This enables precise adaptation to the production requirements of various solid-state battery systems, ensuring a high degree of cell quality consistency at the very source of the process.

Comprehensive Defense: Building a Solid-State Safety Barrier

Safety is an insurmountable bottom line for the mass production of solid-state batteries. Unlike the basic overpressure and overcurrent protection designs found in conventional lithium battery equipment, Lyric has established an end-to-end, multi-dimensional safety system spanning five key dimensions: hardware explosion protection, gas protection, software control, simulation verification, and sealing protection. This holistic approach addresses critical industry safety challenges.

At the complete machine hardware level, the equipment is designed in strict compliance with national explosion-proof standards, meeting the requirements for explosion hazard Zone 2 and achieving an ExdIIBT3 explosion protection rating. Components such as servo motors and junction boxes are all certified explosion-proof products. All metal enclosures and pipelines are uniformly and properly grounded, with high-voltage and low-voltage wiring routed separately, eliminating ignition hazards at the source. For hydrogen sulfide gas generated by sulfide-based batteries, the equipment is equipped with a high-precision monitoring system that works in conjunction with an exhaust unit to quickly reduce hazardous gas concentrations to safe thresholds. The chamber uses EPDM specialized sealing materials to maintain a slight negative pressure environment of -30 Pa to -10 Pa, with leak rates strictly controlled within standard limits, effectively preventing gas leakage. For harmful gases potentially generated during the process, the equipment is equipped with a high-precision gas monitoring system interlocked with exhaust devices. It can rapidly reduce gas concentrations to safety thresholds and deliver active gas protection.

At the software and control level, a three-tier protection architecture consisting of process step, process technology and system layers is established, integrating over 150 process protections and multiple fire alarm linkage logic sets. This enables full-parameter monitoring covering temperature, voltage, pressure, gas concentration, and more. An accompanying UPS (uninterruptible power supply) ensures the safe operation of safety procedures in the event of sudden power outages.

At the R&D and production stage, all equipment undergoes multi-condition finite element analysis covering fixture mechanical stress, temperature distribution and gas fluid simulation in the early development phase, effectively avoiding hidden hazards including structural distortion and excessive stress. Standard safety operation procedures cover every link of electrical wiring assembly and mechanical calibration, realizing fully standardized production management.

Full-line integrated solutions leading the intelligent manufacturing track of solid-state batteries

Beyond the safety protection performance of individual equipment, Lyric has established a three-level corporate-wide protection system tailored for sulfide solid-state batteries. Special emergency response plans are formulated for potential hazards in diverse production scenarios, and corrosion-resistant materials are selected via rigorous material testing to guarantee reliable performance of the equipment in explosion prevention, toxic gas resistance and long-term corrosion resistance. This system forms a dual safety foundation together with the standalone protection functions of high-pressure formation & grading machines, delivering robust support to fully unlock the full-process manufacturing capacity of the entire production line.

The whole-line delivery capability has been fully validated in benchmark projects. Lyric has established in-depth cooperative relationships with industry leaders such as Qingtao Energy, GAC Group, Farasis Energy, and Shanghai FirmLi. Standing at the historic juncture of transformation in the new energy industry, Lyric will remain steadfast in its original mission of "technology as the foundation," continuously tackling core technical challenges, and leveraging its independent intelligent manufacturing strength to help China's solid-state battery industry steadily advance to the high end of the global value chain.