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Australian startup reveals 20-layer battery cell based on semi-solid li-sulfur technology – pv magazine International


Brisbane-based Li-S Power has developed a 20-layer battery cell that makes use of semi-solid state lithium sulfur battery know-how. The corporate claims that the brand new cell exhibits virtually twice the gravimetric power density and a comparable volumetric power density to lithium-ion cells.

In comparison with the ever-present lithium-ion know-how, lithium-sulfur batteries have the potential to supply cheaper, lighter weight power storage, in addition to value and security benefits. However the widespread use of those batteries faces obstacles primarily from the constraints of the life span of lithium-sulfur cells.

In a bid to carry this know-how nearer to commercialization, Australian listed firm Li-S Power has introduced the event of its first 20-layer battery cells utilizing third-generation (GEN3) semi-solid state lithium sulfur battery know-how.

Li-S Power is working with Victoria’s Deakin College and PPK Group, amongst others, to develop new battery cells, which eradicate heavy metals reminiscent of nickel, cobalt and manganese utilized in lithium-ion battery.

The Li-S Power cell is alleged to supply a volumetric power density of 540 Wh/l, a gravimetric power density of greater than 400 Wh/kg and improved security with the usage of a low-flammability electrolyte.

The GEN3 battery cell has main benefits over the second era iteration, together with a forty five% improve in volumetric power density because of the usage of low porosity cathode materials.

In comparison with present Li-ion cells, this efficiency is nearly twice the gravimetric power density and an analogous volumetric power density. This implies Li-S Power’s battery cells at the moment are the identical measurement as present Li-ion batteries however half the burden, the corporate mentioned.

The 20-layer cells use Li-S Power’s patented Li-nanomesh know-how and incorporate boron nitride nanotubes (BNNTs) into the cell building to cut back dendrite progress and enhance security and cycle life. Check cells demonstrated steady efficiency over 1,000 charge-and-discharge cycles whereas sustaining a particular capability roughly thrice that of a typical lithium-ion cell.

The brand new cells are being manufactured at Li-S Power’s Part 2 facility in Geelong, Victoria, the place cell manufacturing trials are anticipated later this 12 months, as soon as the corporate’s Part 3 facility is full. Part 3 is a 2 MWh manufacturing line, which can allow extra automated manufacturing and can embrace probably the biggest dry room in Australia.

“Within the coming months we sit up for starting the manufacturing of economic samples for our companions,” mentioned CEO of Li-S Power, Lee Finniear.

At this level, the Li-S Power growth workforce is working to enhance the cell cycle testing and characterization outcomes to provide an business commonplace datasheet of the brand new 20-layer cells.

Li-S Power has recognized electrical aviation and drones as a key sector the place it has a aggressive benefit because of the gentle weight of its batteries. In 2022, the battery startup signed an settlement with US-based e-aviation firm magniX, which can check the potential of the corporate’s know-how for e-aviation functions.

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