French battery maker Saft has won a contract to supply Kauai, Hawaii’s fourth most populous island, with a Li-ion energy storage system that will regulate electricity supply from renewable sources. According to Saft, such solutions are likely to become the norm for island communities, which is positive news for suppliers of graphite and lithium raw materials

The batteries will be used to stabilise the island’s energy grid, which serves a population of 65,000. Kauai is the fourth largest inhabited island in the Hawaiian archipelago.

“The positive electrode material is lithium nickel-cobalt-aluminium oxide (NCA), on an aluminium foil substrate. Graphite is the negative material and is on a copper foil substrate. The VL41M cell is half a litre in volume and weighs 1.1 kg. Each container consists of 290 modules and each module contains of 14 cells, giving a total of 4060 cells total per container,” it added

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