- Directa Plus said NexTech Batteries' Lithium-Sulphur batteries battery, produced with the company's graphene nanoplatelets had achieved above 400 watt-hours per kilogram in pre-production prototypes.

NexTech produced several full-scale pouch format cell prototypes using its proprietary cathode and electrolyte materials producing 410Wh/kg of specific energy at a weight only slightly below 30g. For comparison, standard Lithium-Ion batteries had an energy density of 100-265 Wh/kg, the company said.

At 9:16am: [LON:DCTA] Directa Plus Plc share price was 0p at 61p

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