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Researchers at Harvard University have developed a solid state battery that can be recharged in 10 minutes, and now it’s got Series A funding to scale production.

October 23 update: Adden Energy has raised $15 million in a Series A round led by At One Ventures with participation from Primavera Capital Group, Rhapsody Venture Partners, and MassVentures to scale production and bring solid state battery technology to car manufacturers.

The company will use the funding to construct a roll-to-roll pilot line production facility at its headquarters in Waltham, Massachusetts.

Adden Energy has already demonstrated technology that can deliver its battery in EV-compatible, commercially compatible pouch cell form-factors; this Series A-funded production line will enable it to scale the size of the batteries 100x.

Laurie Menoud, partner at At One Ventures and board member at Adden Energy, said, “Our investment in this technology is a signal of how important we know this to be, and it’s also our confidence level in Adden Energy’s ability to win market share through competitive unit economics. With the added energy density of lithium metal anodes, the cost per kilowatt hour is going to drop by 30%, and that is going to be a significant driver of adoption.”

Adden Energy says its next-generation batteries are on track to reach the goal of EV parity with internal combustion engines by 2028.

Harvard’s latest solid-state battery breakthrough

January 15, 2024: The lithium metal battery researchers developed at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) can also be charged and discharged at least 6,000 times — more than any other pouch battery cell.

The research published in Nature Materials describes a new way to make solid-state batteries with a lithium metal anode. Xin Li, Associate Professor of Materials Science at SEAS and senior author of the paper, said:

Lithium metal anode batteries are considered the holy grail of batteries because they have ten times the capacity of commercial graphite anodes and could drastically increase the driving distance of electric vehicles.

Our research is an important step toward more practical solid-state batteries for industrial and commercial applications.

One of the biggest challenges in designing solid-state batteries is the formation of dendrites on the surface of the anode. Dendrites are projections of metal that can build up on the lithium surface and grow like roots into the electrolyte. They pierce the barrier that separates the anode and cathode, causing the battery to short or even catch fire.

The dendrites form when lithium ions move from the cathode to the anode during charging, attaching to the surface of the anode in a process called plating. That creates an uneven, non-homogeneous surface on the anode, and allows dendrites to take root.

When discharged, that plaque-like coating needs to be stripped from the anode, and when plating is uneven, the stripping process can be slow and result in potholes that induce even more uneven plating in the next charge.

In 2021, the team designed a multilayer battery that sandwiched different materials of varying stabilities between the anode and cathode. This design prevented the penetration of lithium dendrites by controlling and containing them – but it didn’t stop them altogether.

But in this latest research, the researchers stop dendrites from forming by using micron-sized silicon particles in the anode to constrict the lithiation reaction and facilitate homogeneous plating of a thick layer of lithium metal.

In the Harvard researchers’ design, when lithium ions move from the cathode to the anode during charging, the lithiation reaction is constricted at the shallow surface and the ions attach to the surface of the silicon particle, but don’t penetrate further.

“In our design, lithium metal gets wrapped around the silicon particle, like a hard chocolate shell around a hazelnut core in a chocolate truffle,” said Li.

And, because plating and stripping can happen quickly on an even surface, the battery can recharge in about 10 minutes.

The researchers built a postage stamp-sized pouch cell version of the battery, which is 10 to 20 times larger than the coin cell made in most university labs. The solid-state battery retained 80% of its capacity after 6,000 cycles, outperforming other pouch cell batteries on the market today.

Harvard Office of Technology Development licensed the technology to Adden Energy, a Harvard spinoff company cofounded by Li and three Harvard alumni. Adden Energy has scaled up the technology to build a smart phone-sized pouch cell battery.

Electrek’s Take

This is yet another milestone achieved in the solid-state battery saga. The ultimate challenge is still bringing them to mass-production at a lower price than lithium-ion batteries. That will be the real game-changer for EVs.


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Bojangles adds EV chargers to its fried chicken and biscuit menu

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Bojangles adds EV chargers to its fried chicken and biscuit menu

Bojangles, the North Carolina-based chain known for its fried chicken and biscuits, is joining the growing list of fast food chains installing EV chargers in their parking lots.

The restaurant chain is working with Smart Big Box, Alyath EV, and Energy and Environmental Design Services to install turnkey EV charging stations at a “wide range” of its 800 restaurants, which are concentrated heavily in the southeast US. The rollout starts in late 2025, with most chargers expected to be available by sometime in 2026.

Each Bojangles location getting EV chargers will offer at least four ports. The stations will vary between Level 2 and DC fast chargers. 

Bojangles CIO Richard Del Valle said, “Working with Alyath and Smart Big Box allows us to introduce a new convenience that aligns with evolving customer needs.”

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It’s a smart move. The charging stations will let people plug in and power up, and they’re more likely to dine at Bojangles while they’re doing so. Plus, Bojangles will get a reputation for having charging stations, so EV drivers will be more inclined to head toward the restaurants as a reliable power source.

Cristiane Rosul, CEO of Alyath, said the partnership “not only benefits EV drivers but also positions Bojangles as a leader in the future of quick-service dining.”

Smart Big Box has contracted with Energy and Environmental Design Services as the exclusive installer and maintenance partner for all EV chargers.

Read more: Waffle House is getting DC fast chargers – and it’s a genius move


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Toyota cuts bZ4X lease price to just $199 a month, even cheaper than a Corolla

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Toyota cuts bZ4X lease price to just 9 a month, even cheaper than a Corolla

Toyota’s electric SUV is now its cheapest vehicle to lease. After slashing lease prices again, the Toyota bZ4X is listed for lease at just $199 per month in some states. That’s even cheaper than a Corolla right now, even though it’s nearly double the price.

Toyota bZ4X is now cheaper to lease than a Corolla

The 2025 Toyota bZ4X already starts at $6,000 cheaper than the previous model year, but with a new promotion this month, it’s even more affordable.

Toyota is at it again, having cut lease prices once more this month following the Fourth of July holiday. The 2025 Toyota bZ4X XLE is now listed at just $199 per month for 36 months. With $3,999 due at signing, you’ll end up paying an effective cost of $310 per month.

The offer is $42 less than before the new promo, or about a 12% price cut. It’s hard enough to find any lease nowadays around $300, but for an electric SUV, it’s a pretty good deal.

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According to online auto research firm CarsDirect, it’s even cheaper to lease a bZ4X now in some states than a Toyota Corolla. The 2025 Corolla LE Sedan is available for $229 for 36 months. With $2,999 due at signing, the effective monthly rate is $312, or $2 more than the bZ4X.

Toyota-bZ4X-lease-price
2025 Toyota bZ4X Limited AWD Supersonic Red (Source: Toyota)

Although $2 might not seem like much in the grand scheme of things, it’s pretty significant, given that the bZ4X is $16,000 more expensive.

The 2025 Toyota bZ4X XLE has an MSRP of $38,465, compared to the Corolla LE Sedan, which starts at $22,325. That’s a $16,140 cost difference alone.

Toyota-bZ4X-lease-price
2025 Toyota bZ4X Limited AWD interior (Source: Toyota)

Toyota’s electric SUV is slightly longer than a RAV4 at 184.6″ in length, but it has a longer wheelbase, which opens up more interior space.

Toyota is also throwing in a free year of unlimited charging (at EV-go-operated public charging stations) for those who buy or lease a new 2025 bZ4X. You can also add a ChargePoint home charger to the cost.

Although the bZ4X is available for just $199 per month, the 2025 Hyundai IONIQ 5 is listed at $179 nationwide this month. With more range, style, and an NACS port for charging at Tesla Superchargers, the 2025 IONIQ 5 offer is hard to pass up right now.

2025 Toyota bZ4X trim Starting Price
(excluding $1,395 DPH fee)
Price reduction
(vs 2024MY)
Range
(mi)
XLE FWD $37,070 -$6,000 252
XLE AWD $39,150 -$6,000 228
Limited FWD $41,800 -$5,380 236
Limited AWD $43,880 -$5,380 222
Nightshade $40,420 N/A 222
2025 Toyota bZ4X prices and range by trim

Like many carmakers, Toyota is currently offering significant incentives on electric vehicles, with the federal tax credit set to expire at the end of September. Accordingly, Toyota’s promotion ends on September 30. Although the bZ4X doesn’t qualify for the credit through purchase, Toyota is passing it on through leasing.

In some areas, like LA, Toyota is currently offering $12,000 off bZ4X leases. With the loss of the tax credit, the savings would drop to just $4,500, which would add over $100 a month to the lease price.

Looking to take advantage of the savings while they are still here? You can use our link to find deals on the 2025 Toyota bZ4X in your area today.

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It turns out Tesla Canada’s shady $43m incentive grab was above-board after all

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It turns out Tesla Canada's shady m incentive grab was above-board after all

Transport Canada has finished its investigation into Tesla’s questionable filing of $43 million worth of EV incentives in a single day, finding that the claims did indeed represent cars sold before the deadline to file for incentives – still raising questions about disorganization within Tesla.

To recap, Canada suddenly sunsetted its electric vehicle incentives back in January, as the program ran out of money. It caught a lot of EV dealers by surprise, and there was a sudden rush to sell cars and to file for incentives, given that the end of the program was announced with just three days notice.

One of these dealerships that showed a rush was a single Tesla dealership in Quebec, which recorded 4,000 rebate requests in a single weekend, an impossible number at the relatively small location. Other Tesla locations also filed for suspiciously high numbers of incentive claims on the same weekend.

This raised alarm bells, and other Canadian auto dealers pointed it out to Transport Canada, with Huw WIlliams, head of the Canadian Auto Dealers Association (CADA) claiming that Tesla “gamed the system” to hog an illegitimate number of incentive claims out of the limited money left. The total amount was $43 million, which was more than half of the amount left in the Canadian government’s coffers.

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Even accounting for Tesla delivery pushes, and for increased sales as the credit rapidly sunset, these numbers did not seem possible.

This – perhaps combined with Tesla’s unpopular position in Canada at the time given CEO Elon Musk’s participation in a US government which was attacking Canada’s sovereignty at the time – led to Transport Canada announcing an investigation into Tesla’s incentive claims (Canadian Transport Minister Chrystia Freeland even said at the time that future Canadian ZEV incentives should exclude Tesla until the US’ “illegitimate and illegal” tariffs were lifted).

Tesla responded to the investigation in a typically standoffish manner, claiming in a letter that it was “shocked” to hear about the investigation, threatening legal action if payments weren’t resumed, and blaming Transport Canada for causing Tesla’s negative public perception and exposing Tesla’s Canadian employees to harassment (the letter did not, however, mention anything about CEO Musk’s government activities, or his recent actions attempting to spread white supremacy around the globe, and how those are much more responsible for negative public perception of the company).

Well now, the result of that investigation is back, and Freeland said on Friday that Tesla’s claims “were determined to legitimately represent cars sold before January 12.”

Transport Canada also pledged to CADA that all cars delivered before January 12 will have their incentive claims fulfilled, regardless of the program’s budget. CADA estimates it’s owed around $11 million in past-due claims, and Williams still wonders how Tesla knew to file those claims so suddenly.

Electrek’s Take

Questions still remain about this incentive. As pointed out by the Canadian Press, it’s still not clear whether Tesla’s incentive claims were for cars sold on that weekend, or for cars sold prior to that weekend and delivered all in a lump.

Given the physical limitations of the locations involved, it’s likely the latter. Which raises a different kind of alarm bell: that of disorganization within Tesla, as I pointed out as my main concern over this situation in a previous article.

I just don’t see how Tesla Canada can justify leaving tens of millions of dollars on the table for potentially several months, when all it took was the filing of some pieces of paper for them to get it. That’s capital that Tesla could have used to do business, and letting it sit in someone else’s bank account doesn’t benefit Tesla at all.

Now, disorganization is nothing new for Tesla, but businesses usually don’t like leaving money laying around for no reason. And Tesla, with its focus on quarterly results and end-of-quarter pushes, surely would have enjoyed having that extra cash in December, the end of a fiscal quarter/year, rather than the beginning of January when they filed for these incentives.

So regardless of the now proven legitimacy of these claims, this aspect should be cause for some amount of concern. It’s a reflection of a longtime problem in Tesla, where things tend to fall through the cracks until there’s some sort of emergency, and then it’s all-hands-on-deck from whoever happens to be closest to the problem at the time. But this has been an issue within Tesla for so long that it’s hard to see it being fixed at this point – and certainly not under its longtime CEO who seems far more interested in using Tesla to bail out his private companies or turning Twitter into “MechaHitler” than on making actual good decisions for Tesla.


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Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.

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