Metallic lithium is preferred for anodes in solid-state batteries due to several key advantages:
- High Energy Density: Lithium metal offers significantly higher energy density compared to traditional graphite anodes used in conventional lithium-ion batteries. This is because lithium has a high theoretical capacity as an anode material, potentially increasing the overall energy storage capacity of the battery.
- Improved Performance Potential: The use of lithium metal can enhance the performance characteristics of solid-state batteries. However, challenges such as volume expansion during charging and the risk of dendrite formation must be addressed.
- Potential for Simplification and Cost Reduction: The integration of lithium metal anodes with gel-based electrolytes may simplify manufacturing processes compared to ceramic-based solid-state batteries, potentially reducing costs and enhancing commercial viability.
Despite these advantages, lithium metal anodes also present challenges, such as a large volume increase during charging, which can lead to mechanical stress and potential cell failure. Techniques like controlled pressurization or using lithium alloys are being developed to mitigate these issues.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/why-is-metallic-lithium-preferred-for-anodes-in-solid-state-batteries/
