Korean scientists showed that sodium ion exchange with tin was hundreds of times faster than rates seen in current lithium ion technologies, suggesting ultrafast charging may be possible.
Two other papers from China and the US reported that trapping tin–antimony alloy nanoparticles inside carbon structures increased performance and the development of tin-antimony-sulphur materials for new generation solid state batteries was announced.
Sodium ion batteries are based on a compound similar to table salt and could be 80% cheaper than lithium ion technologies.
Papers on trapping tin-antimony nanoparticles in carbon:
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