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How to circumvent the size limitation of liquid metal batteries due to the Tayler instability

Stefani, F.; Weier, T.; Gundrum, T.; Gerbeth, G.

Recently, a new type of battery has been proposed that relies on the principle of self-assembling of a liquid metalloid positive electrode, a liquid electrolyte, and a liquid metal negative electrode. While this configuration has been claimed to allow arbitrary up-scaling, there is a size limitation of such a system due to a current-driven kink-type instability that is known as the Tayler instability. We characterize this instability in large-scale self-assembled liquid metal batteries and discuss various technical means how it can be avoided.

Publ.-Id: 15173