Home Research Li-ion battery inventor develops 3x efficient all-solid-state battery cells

Li-ion battery inventor develops 3x efficient all-solid-state battery cells

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94 years old, John Goodenough, one of the inventors of Li-ion battery cell, currently a professor in the Cockrell School of Engineering at the University of Texas at Austin, along with his team, has developed a ‘revolutionary’ all-solid-state-battery cell that is claimed to be more efficient in terms of energy density and quick charging.

The research in battery technology has geared up in recent times and the consideration of solid-state batteries is being made since long as a replacement to the Li-ion batteries which are widely used in vehicles, laptops and smart phones. However, cost-effectiveness and life-cycle have always been a concern in the new battery technologies that have come up in past few years.

The work done by Goodenough and his team has been recently published in the journal Energy & Environmental Science.

The existing lithium-ion batteries contain liquid electrolyte for the charge transfer, whereas the new batteries developed by Goodenough use glass electrolytes with an alkali-metal anode facilitating a rise in energy density, thus enabling a long lasting battery life. The formation of dendrites in lithium-ion batteries involves the risk of short-circuit, which is not the case in all-solid-battery-cells, which are dendrite-free.

Because of the high conductivity characteristic of the glass electrolyte, the all-solid-state battery cell can operate from the temperature range of -20 to 60 degree Celsius which is best suitable for vehicular conditions.

According to Cockrell School senior research fellow Maria Helena Braga, the glass-electrolytes used in all-solid-state batteries permit the usage of sodium as a replacement to lithium and since sodium is widely available from the seawater, it has an advantage in the cost-efficiency parameter.

The team behind the new battery wish to work with battery manufacturers across the world to get this development tested on vehicles and electronic gadgets for the sooner adaption of mainstream electronics to the all-solid-state batteries.

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