Ohio, USA Nanotek Instruments researchers have used lithium ion electrode in the graphene surface and a large number of shuttling between the rapid movement of features to develop a new energy storage device, the charging time can be from the past several hours down to less than a minute. The study published recently in the “Nano Letters” on.
Present mainly in battery technology is lithium battery and super capacitor technology, lithium battery and super capacitor mixed. Lithium-ion battery energy storage density, 120 W / kg to 150 W / kg, the super capacitor energy storage density is low, 5 W / kg. However, low-power density lithium batteries, to 1 kW / kg, while the super-capacitor power density of 10 kW / kg. Currently much research work has focused on improving the power density of lithium-ion battery or super capacitor energy storage to increase the density of these two areas, but the challenge is enormous.
New energy storage devices, also known as graphene surface lithium-ion replacement battery, or referred to as surface-mediated cell (SMCS), which focused on the advantages of lithium batteries and super capacitors, while both high power density and high energy storage density of features . Although the energy storage device is not used to optimize the materials and structures, but the performance has exceeded the lithium-ion batteries and super capacitors
