Everyone dreams of a green planet where energy is abundant and inexpensive. Hemp is a natural resource that has long been overlooked as one material that can put this plan into motion. While scientists struggle to find new ways to incorporate graphene into energy storage solutions, the waste from hemp plants is proving more justified as a sweeter alternative.
Currently, home energy storage relies on lithium-ion or lead-acid batteries for later distribution. However, the toxic impact of lead and the difficulty in recycling lithium counteract the environmental purpose of green energy. These high capacity batteries are also slow to recharge. Supercapacitors, on the other hand, are able to hold hundreds of times the amount of electrical charge as standard capacitors.
Graphene-supercapacitors have recently been found to be an outstanding replacement for bulky and less efficient batteries. While the world is buzzing over this new discovery, little attention has been given to the price of the material and production. While graphene is considered to be one of the best materials for supercapacitor electrodes, the cost remains prohibitive. Costing as much as $2,000 per gram, graphene is a long way from being productive. On the other hand, hemp waste is compatible, readily available and cheap.
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Source: The Marijuana Times