Li-S battery
4
Technology Description
This battery uses lithium as an anode while the cathode is made of sulphur. This concept offers the prospect of achieving a very high energy density and does not require expensive cathode materials, as sulphur is very inexpensive and abundant. This chemistry already has a long history of development but efforts to develop batteries for commercial applications in mobility are currently ramping up. Prototype cells have already been developed with energy densities above 400 Wh/kg and the main challenges lie in improving the cyclability of the cell and in realising even higher cell level energy densities. Battery reuse (e.g. second-life applications, for instance for energy storage) and/or recycling technologies and policies will be essential to ensure that batteries contribute to sustainability goals.
Relevance for Net Zero
Beyond lithium-ion, technologies that have higher energy density and lower material costs are needed to electrify vehicles that operate in energy- and power-intensive and long-distance operations, including aircrafts, ships and heavy-duty (e.g. drayage, regional and long-haul) trucks.
Key Countries
United States, China, United Kingdom, Korea
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