Why Is Everyone Trying to Build a Solid-State Battery?
5 hours ago
- Solid-state batteries replace liquid electrolytes with solids, promising lighter, safer, and more energy-dense batteries.
- Major companies (CATL, BYD, LG, Samsung) and startups have invested billions in solid-state battery research.
- Lithium-ion batteries require extensive material scaffolding (e.g., graphite anodes, cathodes), reducing energy density compared to gasoline; solid-state batteries could reduce this.
- Dendrites, which can cause short circuits and fires in liquid-electrolyte batteries, could be prevented by solid electrolytes, allowing pure lithium metal anodes.
- Despite being at an early technological readiness level, solid-state batteries offer potential safety and performance gains, driving global development efforts.