Ultra-Robust Silicon All-Solid-State Battery
Category: Mechanical/Materials
Developers: General Motors
Product Description:GM has pioneered a disruptive ultra-robust silicon all-solid-state battery (ASSB) technology. Enabled by comprehensive solid-solid interface engineering and directed harnessing of silicon expansion dynamics, this innovation demonstrates exceptional thermal and electrochemical robustness. This highly manufacturable technology offers excellent abuse tolerance, ultralong life, fast charging/discharging, and streamlined pack configuration, promising broad applicabilities for automotive, aerospace and large-scale energy storage. Thermally, the battery withstands 200°C thermal ramp tests without thermal runaway or voltage decay while significantly postponing the onset temperature of thermal runaway. Electrochemically, it achieves 10,000 stable cycles at 3C rates, delivering 4C fast-charging capability (0–80% SOC in ~12 minutes) and sustained 5C discharge performance. This validated robustness enables simplified pack/system configurations, enhances cell-to-pack integration efficiency by ~28%, and increases pack-level energy density across diverse cathode chemistries. Technology patent portfolio comprises 45+ patent applications filed worldwide, underpinned by GM's proprietary expertise. This GM-invented ultra-robust silicon ASSB tech is validated to be highly manufacturable through GM-proprietary manufacturing processes and holds significant promise to advance the next-generation battery technology into production quickly. Given these above advantages, we conclude the technology exhibits substantial potential for automotive applications, aerospace systems, and large-scale energy storage.
Developers: General Motors
Product Description:GM has pioneered a disruptive ultra-robust silicon all-solid-state battery (ASSB) technology. Enabled by comprehensive solid-solid interface engineering and directed harnessing of silicon expansion dynamics, this innovation demonstrates exceptional thermal and electrochemical robustness. This highly manufacturable technology offers excellent abuse tolerance, ultralong life, fast charging/discharging, and streamlined pack configuration, promising broad applicabilities for automotive, aerospace and large-scale energy storage. Thermally, the battery withstands 200°C thermal ramp tests without thermal runaway or voltage decay while significantly postponing the onset temperature of thermal runaway. Electrochemically, it achieves 10,000 stable cycles at 3C rates, delivering 4C fast-charging capability (0–80% SOC in ~12 minutes) and sustained 5C discharge performance. This validated robustness enables simplified pack/system configurations, enhances cell-to-pack integration efficiency by ~28%, and increases pack-level energy density across diverse cathode chemistries. Technology patent portfolio comprises 45+ patent applications filed worldwide, underpinned by GM's proprietary expertise. This GM-invented ultra-robust silicon ASSB tech is validated to be highly manufacturable through GM-proprietary manufacturing processes and holds significant promise to advance the next-generation battery technology into production quickly. Given these above advantages, we conclude the technology exhibits substantial potential for automotive applications, aerospace systems, and large-scale energy storage.
