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These are typical problems that result in a lithium electrode but can be circumvented employing a magnesium electrode in a 3-D architecture.
In most cases a proper solution is a meticulous and enduring process but also simple once it has been achieved. No one, myself included, stated that the goal itself is easy.
The 24M solution is certainly a step forward from the present state of the art regarding form fit and function. However, this solution is still based on Lithium, which - as we are presently experiencing on Samsung's Note 7 - is extremely volatile and dangerous. Magnesium, on the other hand, as a 3-D solid state architecture cell, would offer far more energy density at less weight and an even better price. The earth's crust contains 1.4% Magnesium; far more than Lithium and will never expire.
Modern heat pumps have a COP of approx. 1:3/1:4; i. e. power consumption reduction for heating amounts to 66-75%. The heat pump can also be operated in reverse during the summer to cool the vehicle interior. Why settle for less? Let them keep their plastic derivative.
"Exploring the unrealized potential of lead batteries..." There is no potential to neither explore nor to exploit in a l(d)ead battery.
This report leaves many questions unanswered. 1) Low cost micro-turbine - what is the expected price (approx.)? 2) What is the volume of the additional equipment? 3) What is the weight of the total additional equipment. 4) Is it multi-fuel compatible (which fuels)? 5) What are the maintenance intervals of the turbine? 6) How high is the life expectancy? 7) Can it be used for heating as well? 8) Does it need cooling during operation? et, etc.
I'd have serious safety concerns with a Lithium metal anode. Lithium is an extremely volatile material. I would definitely not enjoy a ride on a potential bomb. Why not make use of a Magnesium metal anode? Magnesium is relatively safe and has two valenz-electrons instead of only one in Lithium. Hence, the energy density of magnesium is double that of lithium and is inherently safer. Also, Magnesium is cheaper than Lithium and far more abundant.
The limiting problem of energy density is inherent to the Lithium chemistry. It is mandatory to lithiate an anode material (generally graphite or other carbon allotropes); too much lithium, even though increasing energy density, also makes such an anode more volatile / dangerous. Magnesium belongs to the same family as Lithium but has larger ions and diffuses more difficult than Lithium. However, larger quantities of Magnesium are less dangerous to handle than Lithium and allow a far higher degree of energy density. To be on the safe side, Magnesium could be alloyed with copper (CMg1) directly, making it safer and still allow for high energy density; the copper conductivity is virtually unaffected. This alloy could be foamed like copper and be processed as a 3-D structure as is the present case. The Prieto approach is certainly unparalleled but the chemistry itself could certainly endure improvement.
@ HD: The question you raise in your post is not implied in the blog rather a definite conclusion.
What is Total's true intention? Are they joining battery production or is it just a means to lock-out competition? Time will tell.
@ barbar What you're suggesting is already reality and market-ready. It's only the thumbs-down attitude of Mercedes' management that is preventing market launch.
Ok! You've made a point. It would be excellent to get down to brass tacks and produce what has now been quantified in real time scanning. Just talking and writing about it is not going to produce any objective results.
@ ecic: ....along with the expert advice like the lobbyists do). Are you serious? What expert advice is to be expected from lobbyists apart from BS?
In the link below, you can get an impression from the second image of the all electric design that Airbus Industries is presently developing. All text comments are in German only. No propellers implemented, only impellers.
With the exception of depreciation, it sounds good. Approx. 85% remaining capacity (500 x 0.028%) after 500 cycles is nothing to brag about. 85% after 5000 cycles, that would be great.
I know what happens when you blow at a dandelion in full blossom; but what happens when you blow a dandelion tire?
When determining the consumption of a vehicle, standard test procedure is as follows: 1) Remove spare tire, car tools and car jack 2) Remove all seats of car except drivers seat 3) Replace tires with undersized types and over-inflate 4) Assure driver's (woman) weight does not exceed 50kg 5) Remove side mirrors 6) Once car has been started, remove battery 7) When test-driving on an oval or circular horizontal course, do not exceed 35mph. No unnecessary braking or accelerating. What does such a test procedure have in common with actual driving??
What purpose do SUVs have other than fostering the "King of the Road" impression?
A "futile hope" emanating from several comments that FCs will become cheap is the same as hoping for dry water.
First manned Volocopter flight. Regretfully, available in German language only.
As far as electric driven Helis are concerned, this German entrepreneur is just a short hop away from series production.
Henrik, you're so right but you forgot to mention the vitriol.
"....while its electrolyte is composed of conventional lithium salt and carbonate solvent." Well, I'd suggest to replace the graphite with CNTs and a suited polymer as an electrolyte. That should increase power - and energy density and also increase cycle life. Get all that fine-tuned and you'll have a solid state battery pointing the way to tomorrow.
I can't see FCs ever gaining a foothold in the broad market. Momentarily a FC, at a size needed for mobility purposes, costs ca. 75,000.00 USD. Let the price drop (wishful thinking) to 10% of that amount due to mass production scale and you'll end up by 7,500.00 USD for the FC only. Far too expensive! The FKLG, invented from DLR in Germany, is a linear multi-fuel capable combustion engine. This engine is simple, small, light, and extremely reliable and efficient ; also runs on H2. The price for a single unit at mass production amounts to max. 2,000.00€. I'd definitely prefer that to an overly expensive and complicated FC.
As far as electrolytic production of H2 makes any sense at all, I could imagine that 3-D electrodes would be even more efficient. It would be interesting to compare the results of a copper foam electrode in cylindrical form coated with an atomic layer of platinum and an atomic layer of copper on top of the platinum layer with the present electrode.