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Researchers at Monash University have developed a new lithium-sulphur battery design that reduces the amount of lithium required for charging.authored by PhD student Declan McNamara, Professor Matthew Hill, and Professor Mainak Majumder from Monash Engineering, along with Dr. Makhdokht Shaibani of RMIT University, the researchers detail a novel battery design.
Li-S batteries also have their limitations. Typically they contain a lithium anode and sulphur cathode with a separating layer. When the battery charges and discharges, large amounts of lithium and sulphur are reacted with one another, placing the lithium metal under a lot of strain. “The polymer contains tiny holes less than a nanometre in size – one billionth of a metre – which allow lithium ions to move freely while blocking other chemicals that would attack the lithium. The coating also acts as a scaffold for lithium, and helps it charge and discharge repeatedly,” McNamara said.
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