ThierryH à dit:

Pour revenir au prix...
C'est en location longue durée. On doit donc pouvoir bénéficier de la prime "voiture électrique" qui est de 5000€, soit les 15 premiers mois gratis 😀

Cliquez pour agrandir...

Batteries powers all kinds of electric motors and new lithium-polymer battery packs such as this one can soon power an electric automobile as well as hybrid vehicle
This battery will be made out of four components.
It all starts with this lithium ??? which weighs about 5 kilos.
It’s transformed into a thin sheet by this extrusion press that applies 400 tons of pressure. From it will exit a sheet that’s only about 250 microns thin.
The whole extrusion sequence is closely computer controlled.
Extrusion is now completed. The metallic lithium sheet is the required 250 microns of thickness, or a quarter of a millimeter.
The sheet has to be further thinned. Placed on a roll, it is carried to the laminator. At room temperature it is thinned once again. In just 20 minutes, the 5 kilos ??? will have been transformed into a thin, 250 micros sheet some 250 meters in length.
This laminator completes the thinning of the sheet to between 20 and 40 microns, the resulting 2 km long sheet will allow for the fabrication of 210 battery units.

Cliquez pour agrandir...

Lithium is a soft, sticky metal. For this reason, a polymer film has to be fixed on the lithium sheet. Without this protection, the sheet would ??? to itself and become unusable. The sheet will be used to make individual battery cells. Then these cells will be assembled in series and in parallel, and inserted into module of different shapes. To make it individual battery cells, the sheet has to be rolled up. This automated spooling machine winds up the lithium film in 26 revolutions. The weld-up sheet with various layers here firmly torn with others.
This step last for about 90 minutes at 80 degrees centigrade.
Here, a test is made: Using a voltmeter, the battery is checked to see if it produces the required 3.56 Volts. Any problem can be detected here, and corrected. A final quality check is made with this caliber, which precisely measures the thickness of the battery cell.
The battery cells are then stored. Metallic plates are placed between them for the entire storage period.

Cliquez pour agrandir...

One more step remains, and that’s the metalizing of the contacts. The battery cells are sent of to a facility in this container. The container is robotically handled. First, it’s put in a protective tank, then the metalizing of the contacts is done by springs of molten metal. This takes just a few seconds, since the metal froze very quickly.
The battery is now finished. It comprises four elements: lithium, which acts as the anode, a metallic oxide cathode, a dry solid polymer electrolyte, and a metallic current collector. All that remains to be done is the assembling of the individual battery cells into a module. It begins with the placing of individual cells onto one another and isolating them with film so that they don’t touch each other. These red sheets are actually heating elements, since the lithium metal polymer cells function at temperatures between 40 and 80°C.
All of the individual battery cells of a completed module are connected to an electronic card located above the module. The finished modules are connected to one another, in series and in parallel, to form a battery pack, which can be used in an electric automobile, or a hybrid vehicle. Here we see these modules of a battery pack for a hybrid vehicle: an automobile that works with a gasoline powered motor and an electric motor.
This prototype battery was created for a totally electric vehicle. It surpasses heavy traditional ??? batteries that can’t develop the same amount of electric energy and which have much shorter life spans.

Cliquez pour agrandir...

shmurz à dit:

Bonsoir, après avoir visionné cette video, je me suis dit que le texte pouvait intéresser du monde. Donc si quelqu'un souhaite traduire (je n'ai pas encore pris le temps de le faire), voici un début de transcription, où il manque malheureusement encore quelques mots (pas indispensables cependant)

Cliquez pour agrandir...

Batteries powers all kinds of electric motors and new lithium-polymer battery packs such as this one can soon power an electric automobile as well as hybrid vehicle
This battery will be made out of four components.
It all starts with this lithium ingot which weighs about 5 kilos.
It’s transformed into a thin sheet by this extrusion press that applies 400 tons of pressure. From it will exit a sheet that’s only about 250 microns thin.
The whole extrusion sequence is closely computer controlled.
Extrusion is now completed. The metallic lithium sheet is the required 250 microns of thickness, or a quarter of a millimeter.
The sheet has to be further thinned. Placed on a roll, it is carried to the laminator. At room temperature it is thinned once again. In just 20 minutes, the 5 kilos ingot will have been transformed into a thin, 250 micros sheet some 250 meters in length.
This laminator completes the thinning of the sheet to between 20 and 40 microns, the resulting 2 km long sheet will allow for the fabrication of 210 battery units.

Lithium is a soft, sticky metal. For this reason, a polymer film has to be fixed on the lithium sheet. Without this protection, the sheet would adhere to itself and become unusable. The sheet will be used to make individual battery cells. Then these cells will be assembled in series and in parallel, and inserted into module of different shapes. To make it individual battery cells, the sheet has to be rolled up. This automated spooling machine winds up the lithium film in 26 revolutions. The weld-up sheet with various layers here firmly torn with others.
This step last for about 90 minutes at 80 degrees centigrade.
Here, a test is made: Using a voltmeter, the battery is checked to see if it produces the required 3.56 Volts. Any problem can be detected here, and corrected. A final quality check is made with this caliber, which precisely measures the thickness of the battery cell.
The battery cells are then stored. Metallic plates are placed between them for the entire storage period.

One more step remains, and that’s the metalizing of the contacts. The battery cells are sent of to a fabrication facility in this container. The container is robotically handled. First, it’s put in a protective tank, then the metalizing of the contacts is done by springs of molten metal. This takes just a few seconds, since the metal froze very quickly.
The battery is now finished. It comprises four elements: lithium, which acts as the anode, a metallic oxide cathode, a dry solid polymer electrolyte, and a metallic current collector. All that remains to be done is the assembling of the individual battery cells into a module. It begins with the placing of individual cells onto one another and isolating them with film so that they don’t touch each other. These red sheets are actually heating elements, since the lithium metal polymer cells function at temperatures between 40 and 80°C.
All of the individual battery cells of a completed module are connected to an electronic card located above the module. The finished modules are connected to one another, in series and in parallel, to form a battery pack, which can be used in an electric automobile, or a hybrid vehicle. Here we see these modules of a battery pack for a hybrid vehicle: an automobile that works with a gasoline powered motor and an electric motor.
This prototype battery was created for a totally electric vehicle. It surpasses heavy traditional lead-acid batteries that can’t develop the same amount of electric energy and which have much shorter life spans.

Cliquez pour agrandir...