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| Thu, 30th Jul 2020 11:54:00 |
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Perovskite structure also benefits batteries |
Scientists at Germany’s Karlsruher Institute of Technology are leading an investigation into a new lithium-ion battery anode. The innovation has a perovskite crystalline structure and, according to the researchers, could provide strong all-round performance from simpler, cheaper production methods than those used for other anode materials.
The well-documented shortcomings of today’s lithium-ion batteries have prompted a plethora of new materials to be considered for use in such devices. When it comes to the anode, the aim is to integrate materials with better charge rate and energy density than commonly-used graphite and to find safe ways of using lithium without risking the formation of dendrites.
In experiments, the anode achieved a working voltage below 1 V, reversible capacity of 225 milliamp-hours per gram and 79% capacity retention after 3,000 cycles. “Ultimately, cell voltage and storage capacity determine the energy density of a battery,” said Helmut Ehrenberg, head of the Institute for Applied Materials – Energy Storage Systems, at KIT. “In the future, LLTO anodes could enable particularly safe and durable high-performance cells.
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