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Tesla patent paves way for compact battery systems that are easier to produce

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Tesla’s use of batteries for its electric vehicles are crucial to their function. The company’s battery systems are the industry standard as they offer more range and density than their competitors. But despite this lead, a recently submitted patent for an aggregated battery system could put Tesla’s batteries head-and-shoulders above the rest of the pack, bar none.

While Tesla’s current battery system is top of the line, it could still be more cost-effective. Batteries themselves cost a lot to manufacture for Tesla, and not to mention, a lot to replace for an owner. The aim of the company’s newly submitted patent is to create a more efficient system that would simplify the entire battery component by combining the multiple battery systems into one single module.

Small battery cells are more advantageous than large battery cells for a number of reasons, including time, safety, thermal management and production of energy. All of these factors would highlight the advantages of small battery systems and would allow for an increase in the productivity of battery cells. The smaller cells means “a shorter length of electrode material that is devoid of material defects would be required.”

A battery pack made up of multiple battery systems grouped together and positioned within a container. (Credit: US Patent Office)

The new system would arrange the battery cells in an upright manner. The multiple cells would then function with one another by being connected to a series of collector plates with tabs on both the positive and negative ends of the battery. The tabs would then be connected to a positive or negative terminal of the battery cell. This would be done with multiple series of batteries that all have different responsibilities throughout the vehicle. They would all, however, be housed within a single battery container, allowing engineers or service workers easy access to each battery system.

The addition of this new patent could help reduce costs by utilizing smaller battery cells in battery systems. The patent states that while production will increase due to the reduced size and need for materials, the small cells can increase the complexity of the manufacturing of the systems. This makes Tesla’s batteries even easier to produce.

“For instance, with use of many small format cells, it is envisioned that several electrical interconnects could be required to accomplish the conveyance of current from the large number of small format cells and this may also contribute to the complexity in design and manufacture of the battery system. The battery cell could also have some functionalities that may be redundant when aggregated into the battery system. As each battery cell would be manufactured independently of others, time and resources would need to be spent thereafter for combining the cells and for forming the interconnects to the current collectors typically, though a welding, or soldering process. Hence, there is a need to produce battery modules in a simplified manner.”

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The innovations offered by Tesla’s recently published patent could allow the electric car maker to equip its vehicles with battery packs that are both compact and high-density. This would be pivotal to upcoming vehicles such as the next-generation Roadster, the Tesla Pickup Truck, and the Tesla Semi, all of which are expected to require large batteries to achieve their target range, and thus would require large numbers of cells from the electric car maker.

Tesla is the head of the pack in terms of batteries, as the company’s vehicles have considerably longer ranges than the vehicle’s of its competitors. For example, a Tesla Model S Performance variant contains a 100 kWh battery, with a WLTP estimated 365 miles of range when charged to its capacity. The newly released Porsche Taycan Turbo S contains a 93.4 kWh battery with a WLTP estimated 256 miles of range on a full charge.

The full text of Tesla’s novel battery design patent could be accessed here.

Joey has been a journalist covering electric mobility at TESLARATI since August 2019. In his spare time, Joey is playing golf, watching MMA, or cheering on any of his favorite sports teams, including the Baltimore Ravens and Orioles, Miami Heat, Washington Capitals, and Penn State Nittany Lions. You can get in touch with joey at joey@teslarati.com. He is also on X @KlenderJoey. If you're looking for great Tesla accessories, check out shop.teslarati.com

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Delaware Supreme Court reinstates Elon Musk’s 2018 Tesla CEO pay package

The unanimous decision criticized the prior total rescission as “improper and inequitable,” arguing that it left Musk uncompensated for six years of transformative leadership at Tesla.

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Gage Skidmore, CC BY-SA 4.0 , via Wikimedia Commons

The Delaware Supreme Court has overturned a lower court ruling, reinstating Elon Musk’s 2018 compensation package originally valued at $56 billion but now worth approximately $139 billion due to Tesla’s soaring stock price. 

The unanimous decision criticized the prior total rescission as “improper and inequitable,” arguing that it left Musk uncompensated for six years of transformative leadership at Tesla. Musk quickly celebrated the outcome on X, stating that he felt “vindicated.” He also shared his gratitude to TSLA shareholders.

Delaware Supreme Court makes a decision

In a 49-page ruling Friday, the Delaware Supreme Court reversed Chancellor Kathaleen McCormick’s 2024 decision that voided the 2018 package over alleged board conflicts and inadequate shareholder disclosures. The high court acknowledged varying views on liability but agreed rescission was excessive, stating it “leaves Musk uncompensated for his time and efforts over a period of six years.”

The 2018 plan granted Musk options on about 304 million shares upon hitting aggressive milestones, all of which were achieved ahead of time. Shareholders overwhelmingly approved it initially in 2018 and ratified it once again in 2024 after the Delaware lower court struck it down. The case against Musk’s 2018 pay package was filed by plaintiff Richard Tornetta, who held just nine shares when the compensation plan was approved.

A hard-fought victory

As noted in a Reuters report, Tesla’s win avoids a potential $26 billion earnings hit from replacing the award at current prices. Tesla, now Texas-incorporated, had hedged with interim plans, including a November 2025 shareholder-approved package potentially worth $878 billion tied to Robotaxi and Optimus goals and other extremely aggressive operational milestones.

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The saga surrounding Elon Musk’s 2018 pay package ultimately damaged Delaware’s corporate appeal, prompting a number of high-profile firms, such as Dropbox, Roblox, Trade Desk, and Coinbase, to follow Tesla’s exodus out of the state. What added more fuel to the issue was the fact that Tornetta’s legal team, following the lower court’s 2024 decision, demanded a fee request of more than $5.1 billion worth of TSLA stock, which was equal to an hourly rate of over $200,000.

Delaware Supreme Court Elon Musk 2018 Pay Package by Simon Alvarez

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Tesla Cybercab tests are going on overdrive with production-ready units

Tesla is ramping its real-world tests of the Cybercab, with multiple sightings of the vehicle being reported across social media this week.

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Credit: @JT59052914/X

Tesla is ramping its real-world tests of the Cybercab, with multiple sightings of the autonomous two-seater being reported across social media this week. Based on videos of the vehicle that have been shared online, it appears that Cybercab tests are underway across multiple states.

Recent Cybercab sightings

Reports of Cybercab tests have ramped this week, with a vehicle that looked like a production-ready prototype being spotted at Apple’s Visitor Center in California. The vehicle in this sighting was interesting as it was equipped with a steering wheel. The vehicle also featured some changes to the design of its brake lights.

The Cybercab was also filmed testing at the Fremont factory’s test track, which also seemed to involve a vehicle that looked production-ready. This also seemed to be the case for a Cybercab that was spotted in Austin, Texas, which happened to be undergoing real-world tests. Overall, these sightings suggest that Cybercab testing is fully underway, and the vehicle is really moving towards production.

Production design all but finalized?

Recently, a near-production-ready Cybercab was showcased at Tesla’s Santana Row showroom in San Jose. The vehicle was equipped with frameless windows, dual windshield wipers, powered butterfly door struts, an extended front splitter, an updated lightbar, new wheel covers, and a license plate bracket. Interior updates include redesigned dash/door panels, refined seats with center cupholders, updated carpet, and what appeared to be improved legroom.

There seems to be a pretty good chance that the Cybercab’s design has been all but finalized, at least considering Elon Musk’s comments at the 2025 Annual Shareholder Meeting. During the event, Musk confirmed that the vehicle will enter production around April 2026, and its production targets will be quite ambitious. 

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Tesla gets a win in Sweden as union withdraws potentially “illegal” blockade

As per recent reports, the Vision union’s planned anti-Tesla action might have been illegal. 

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Andrzej Otrębski, CC BY-SA 4.0 , via Wikimedia Commons

Swedish union Vision has withdrawn its sympathy blockade against Tesla’s planned service center and showroom in Kalmar. As per recent reports, the Vision union’s planned anti-Tesla action might have been illegal. 

Vision’s decision to pull the blockade

Vision announced the blockade in early December, stating that it was targeting the administrative handling of Tesla’s facility permits in Kalmar municipality. The sympathy measure was expected to start Monday, but was formally withdrawn via documents sent to the Mediation Institute and Kalmar Municipality last week. 

As noted in a Daggers Arbete report, plans for the strike were ultimately pulled after employer group SKR highlighted potential illegality under the Public Employment Act. Vision stressed its continued backing for the Swedish labor model, though Deputy negotiation manager Oskar Pettersson explained that the Vision union and IF Metall made the decision to cancel the planned strike together.

“We will not continue to challenge the regulations,” Petterson said. “The objection was of a technical nature. We made the assessment together with IF Metall that we were not in a position to challenge the legal assessment of whether we could take this particular action against Tesla. Therefore, we chose to revoke the notice itself.”

The SKR’s warning

Petterson also stated that SKR’s technical objection to the Vision union’s planned anti-Tesla strike framed the protest as an unauthorized act. “It was a legal assessment of the situation. Both for us and for IF Metall, it is important to be clear that we stand for the Swedish model. But we should not continue to challenge the regulations and risk getting judgments that lead nowhere in the application of the regulations,” he said. 

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Vision ultimately canceled its planned blockade against Tesla on December 9. With Vision’s withdrawal, few obstacles remain for Tesla’s long-planned Kalmar site. A foreign electrical firm completed work this fall, and Tesla’s Careers page currently lists a full-time service manager position based there, signaling an imminent opening.

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