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Future Teslas will have batteries that double as structure, making them extra stiff while improving efficiency, safety and cost

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Tesla has fundamentally redesigned the way that its battery packs integrate into their vehicles, turning them into structural elements of the car, rather than just fuel sources on their own. At Tesla’s Battery Day event on Tuesday, Elon Musk compared this to how commercial aircraft used to load fuel into tanks that were contained within the wings, but that were essentially bolted onto internal structure – later on, they realized much greater efficiencies in how much fuel could be carried, as well as weight and parts usage by making the wing bodies actual fuel tanks themselves.

“All modern airplanes, the fuel tank, your wing is just a a fuel tank and wing shape,” he said. “This is absolutely the way to do it. And then the fuel tank serves as dual structure, and it’s no longer cargo. It’s fundamental to the structure of the aircraft – this was a major breakthrough. We’re doing the same for cars.”

By turning the battery cell into a structural component of the vehicle, Musk pointed out that they can actually save more mass overall in the car then you would assume on paper if you just took out the structural supports in the battery cells as they currently exist. That’s because the battery itself is doing a lot of that support work – which, he points out, actually makes the overall vehicle safer, which might seem counterintuitive.

Tesla will achieve this by creating a filler that is also a structural adhesive, and that also acts as a flame retardant. It “effectively glues the cells to the top and bottom sheet, and this allows you to do shear transfer between upper and lower sheets,” Musk said.

“This gives you incredible stiffness, and it’s really the way that any super fast thing works is you create a basically a honeycomb sandwich with two phase sheets,” he’ said. “This is actually even better than what aircraft do because they can’t do this because fuel is liquid.”

The end result of this will be that a structure that enables Tesla’s cars to be much stiffer than any regular cars. That stiffer design is better for safety overall, and also means that the batteries will be more efficient, while also avoiding any “arbitrary point loads” of strain or stress on the battery cell itself.

It also allows us to use to move the cells closer to the center of the car, because we don’t have […] sort of all the supports and stuff,” he said. “So, the volumetric efficiency of the structural pack is much better than a non structural pack. And we actually bring cells closer to the center.”

This reduces the potential of side impacts from collisions actually reaching the cells, which means they should be less susceptible to sustaining the kind of damage that can result in battery-related fires. It will also “improve the polar moment of inertia,” Musk said, which basically translates to better overall maneuvering of the vehicle and driving and handling feel.

Finally, there are 370 fewer parts in the structural battery design vs. the current Tesla battery cell design, which greatly reduces cost as well as potential failure points. That’s going to add up to a lot of manufacturing savings, per Musk, and will stack with the other battery innovations he unveiled.

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Charge Your Phone Wirelessly With 50% off a Multifunctional LED Lamp

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Best Tech DealsBest Tech DealsThe best tech deals from around the web, updated daily.

White Wireless Charge Lamp | $18 | Amazon | Clip coupon + code ABC88699
Black Wireless Charger Lamp | $20 | Amazon | Promo code ABC88699

When you’re ready to turn in for the night, you don’t want to forget to charge your phone— especially if your mobile device doubles as your alarm clock.

With this wireless charger lamp, you can make this crucial step of your nightly routine even easier by just setting your phone on the wireless charging pad and… well, that’s all there is to it!

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Other functions include multiple lighting modes as well as a sleep timer option for auto shut-off of the light after 30 or 60 minutes.

This lamp can be yours in white for $18 if you clip the coupon on Amazon (it’s below the original $40 price) and add promo code ABC88699 at checkout.

You can snag the black version for $20 using the same code—no coupon though, sorry.

Don’t sleep on this deal! Who knows how long stock or the coupon code will last?

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Keep That Hotdish Hot With 65% Off a Luncia Casserole Carrier, Only $11 With Promo Code

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Best Home DealsBest Home DealsThe best home, kitchen, smart home, and automotive deals from around the web, updated daily.

Luncia Double-Decker Dish Carrier | $11 | Amazon | Promo code SDDU9S7F

It has been a long time since the days we could safely have a potluck or other gatherings, but we have a fantastic deal perfect for once those times return. These double-decker Luncia dish carriers can be had for 65% off when you add promo code SDDU9S7F at checkout and clip the coupon on the site (it’s just below the price). These holders fit 9″x 13″ sized baking dishes.

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That means you can insulate and keep two dishes of food warm for only $11 instead of $30. What’s more, your Luncia carrier will arrive by Christmas if you order today as a Prime member.

Just add promo code SDDU9S7F and clip the 5% off coupon to bring the price down to $11 for the blue or the grey option.

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Grab this offer while it’s still around!


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Conquer Your Pup’s Dander and Fur With $700 Off a Cobalt or Charcoal Bobsweep PetHair Plus Robot Vacuum

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Best Home DealsBest Home DealsThe best home, kitchen, smart home, and automotive deals from around the web, updated daily.

Bobsweep PetHair Plus Robot Vacuum & Mop (Cobalt) | $200 | Best Buy

Bobsweep PetHair Plus Robot Vacuum & Mop (Charcoal) | $200 | Best Buy

Allergies can be bad enough as the seasons change. Don’t let pet hair and dander add to that by vacuuming it up early and often. That chore is easier said than done— unless you have a robot vacuum to do the work for you. This lovely bright cobalt Bobsweep PetHair Plus robot vacuum and mop, only $200 today at Best Buy seems like an ideal option. That’s a whopping $700 off, by the way.

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You can get the same deal for the charcoal version of the robot vac, too. This model is not only specially made for picking up pet hair, it self docks and charges when it’s finished with the work.

It also comes with a mop attachment, so it can take care of those kitchen floors for you as well. Grab it while it’s still available for this fantastic price!

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