News Summary

• Lithium-ion batteries are one of the most successful technologies ever invented.
• But the technology is not without its flaws and limitations, and scientists are now trying to figure out which type of next-gen battery will take over next.
• One of the leading contenders, sodium-ion, just passed a major safety test at Hyundai, while this battery type is also showing lots of promise overall.
• There's still a lot of work to do, as a 2026 review published in the Journals of Materials Chemistry A points out.