RE: SP Fall?10 Nov 2021 11:09
Basscadet link:
SES announced a new battery that promises to nearly double the energy density of today’s lithium-ion cells. The key was eliminating a piece of the battery that added weight and thickness—but to do so without introducing dangerous conditions that could lead to a fire.
SES eliminated graphite from the anode, which is the part of the battery that accepts lithium ions during charging. Instead, the new battery has a pure metal lithium anode. By dropping graphite from the anode, SES saved on weight and space, but it also had to figure out how to manage pure lithium, a highly reactive metal. When used as an anode, pure lithium often led batteries to premature deaths.
To make lithium-metal anodes safe and long-lived, the company managed the formation of dendrites using a three-prong approach. Dendrites are spiky structures that can form within lithium-ion batteries, particularly when the cells are charged or discharged quickly. If they grow too large, they can bridge the gap between the anode and cathode, causing a short circuit that can set the electrolyte on fire.
Other companies are trying to eliminate the dendrite problem by replacing the liquid electrolyte with a solid one, creating a physical barrier to prevent the growth of dendrites. But mass producing lithium-metal batteries with solid electrolytes has been challenging, and perfecting the process will take several more years, which is why other companies have been researching hybrid approaches SO ...Not all negative for TGR in my opinion.
TGR are partnering with Blue chip companies and Research and Development opportunities with Universities to see what other applications Graphite/ene can deliver. in terms of its use in electrical, refractory and strength/weight ratio.
That's above and beyond the myriad of other uses it is already applied to:
graphite is the only non-metal that is a strong electricity conductor. Crystalline flake graphite is used in the manufacturing of carbon electrodes, brushes, and plates needed in electrical industry
Graphite is a widely used refractory material used in Nuclear plants to control fusion and steel to add strength, and glass for strength and heat control.
Graphite is one of the main ingredients in lubricants like grease, etc. This mineral reacts with atmospheric water vapour and creates a thin film or layer over the surface applied and thus reduces friction. Graphite is also used in car brakes and clutches.
The powdered form of lump graphite is also used in paints. As graphite by nature is water-repellent.
Graphite can be used to make graphene sheets. These sheets are said to be 100 times stronger and 10 times lighter than steel. This derivative of graphite has huge potential in medical and aerospace industry, windfarm vanes etc etc.
How much further would a a car made of Graphene sheets wired without copper go on a charge?..just a thought GLA
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