Investor's Corner
Tesla explores safer battery production with novel DCM recovery system patent
In what appears to be yet another step towards its goal of operating the safest car factory in the industry, Tesla has been granted a patent that could pave the way for a safer process in battery production. Published today, the electric car maker’s recent patent describes a system to treat and recycle Dichloromethane (DCM), which is among the materials used in the production of electric car batteries.
DCM is utilized in a variety of industrial processes, particularly in chemical plastic welding, wherein softened plastic pieces or surfaces are welded together. The material is also used to soften plastic sheets for stretching or shaping, and as a solvent to remove unwanted compounds. In Tesla’s case, DCM is among the materials used in the forming of a separator base film for an electric car’s battery system. While DCM is invaluable in manufacturing, though, the material carries some health risks.
Dichloromethane is the least toxic among the simple chlorohydrocarbons, but its high volatility makes it an inhalation hazard nonetheless. Prolonged skin contact with DCM could also result in the material dissolving some of the skin’s fatty tissues, causing irritation or chemical burns. With these risks in mind, the manufacturing industry employs ways to recover DCM. Tesla notes that current systems for DCM treatment and recovery are capital intensive, particularly since the process involves expensive components such as activated carbon beds, condensers, steam boilers and distribution systems, density separation vessels, and waste water treatment systems.
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- Tesla’s DCM treatment system. [Credit: US Patent Office]
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- A flow chart illustrating operation of an exhaust treatment system for treating a waste exhaust stream containing dichlorom ethane. [Credit: US Patent Office]
Tesla’s diagrams outlining its Dichloromethane recovery system. [Credit: US Patent Office]
Tesla describes conventional DCM treatment systems as follows:
“The DCM itself may then be removed through a heating and/or evaporation process with the exhaust collected. This exhaust containing DCM is then combined with the exhaust from other tools and systems used in the manufacturing process. The combined exhaust may then be fed to a recovery plant to recover DCM. In the recovery plant, the waste exhaust stream is typically treated with activated carbon. This scrubbing process requires high capital expenditure (many expensive components), high operating cost (extensive steam and cooling water consumption which accounts for >20% of total process cost), large footprint requirements, and large amounts of waste water that need to be processed. In order to address these cost and environmental-remediation issues, an improved process for the removal of DCM from exhaust streams is needed.”
Tesla’s take on DCM treatment and recovery utilizes a wet scrubber and a density separator vessel as key components of the system. The wet scrubber in Tesla’s patent has a scrubbing chamber, where water is utilized to scrub the waste exhaust stream containing the DCM. Tesla notes that the wet scrubber could adopt a variety of designs to remove DCM from the waste exhaust stream, including a venturi scrubber design, a condensation scrubber design, an impingement-plate scrubber design, or a packed bed tower design, among others.
Tesla’s use of a density separator vessel is described in the following section from the patent.
“The density separator vessel has an inlet to receive the liquid water and DCM mixture, an outlet to expel DCM, and an outlet to expel waste water. The DCM may be routed back to the industrial process for reuse and/or collected for later use. The waste water may be routed back to the wet scrubber, as shown along (the) waste water return loop. Waste water may also or alternately be routed to waste water treatment system for processing for subsequent treatment by (the) waste water treatment system.
“Typically, a large portion of the waste water is returned to the wet scrubber via (the) waste water return loop and a small portion of the waste water is treated by the waste water treatment system. Even though the waste water may contain small amounts of DCM, the waste water will still retain its ability to scrub the exhaust containing DCM. An advantage of the wet scrubber over the activated carbon beds is that all or most of the water used by the wet scrubber is the waste water from the density separator vessel, resulting in substantial savings of water and energy, and resultantly, substantial cost savings.”
Tesla states that compared to more traditional exhaust treatment systems, the DCM treatment and recovery model outlined in its patent effectively eliminates the use of steam and cooling, while also reducing the amount of throughput needed by a waste water system. With these efficiencies in mind, Tesla notes that it could reduce capital expenditures and operating costs “for the same amount of DCM processed processing.” The increased simplicity of the system and reduced airflow rates are expected to help the company get more savings in both capital expenditures and operating costs as well.
More than a way to optimize its operations, Tesla’s recent patent is also a notable way for the company to keep its battery production lines safer for its employees. Such a system would definitely be invaluable for the company, particularly as Tesla is now preparing the Model 3 for a global rollout. With the Model 3 ramp ever-expanding, and with high-volume vehicles like the Model Y and possibly the Tesla pickup truck in the pipeline, optimizations such as a better DCM treatment and recovery system are all but necessary.
Tesla’s recently published patent on its DCM treatment system could be accessed here.
Investor's Corner
Tesla is ‘better-positioned’ as a company and as a stock as tariff situation escalates
Tesla is “better-positioned” as a company and as a stock as the tariff situation between the United States, Mexico, and Canada continues to escalate as President Donald Trump announced sanctions against those countries.
Analysts at Piper Sandler are unconcerned regarding Tesla’s position as a high-level stock holding as the tariff drama continues to unfold. This is mostly due to its reputation as a vehicle manufacturer in the domestic market, especially as it holds a distinct advantage of having some of the most American-made vehicles in the country.
Analysts at the firm, led by Alexander Potter, said Tesla is “one of the most defensive stocks” in the automotive sector as the tariff situation continues.
The defensive play comes from the nature of the stock, which should not be too impacted from a U.S. standpoint because of its focus on building vehicles and sourcing parts from manufacturers and companies based in the United States. Tesla has held the distinct title of having several of the most American-made cars, based on annual studies from Cars.com.
Its most recent study, released in June 2024, showed that the Model Y, Model S, and Model X are three of the top ten vehicles with the most U.S.-based manufacturing.
Tesla captures three spots in Cars.com’s American-Made Index, only U.S. manufacturer in list
The year prior, Tesla swept the top four spots of the study.
Piper Sandler analysts highlighted this point in a new note on Monday morning amidst increasing tension between the U.S. and Canada, as Mexico has already started to work with the Trump Administration on a solution:
“Tesla assembles five vehicles in the U.S., and all five rank among the most American-made cars.”
However, with that being said, there is certainly the potential for things to get tougher. The analysts believe that Tesla, while potentially impacted, will be in a better position than most companies because of their domestic position:
“If nothing changes in the next few days, tariffs will almost certainly deal a crippling blow to automotive supply chains in North America. [There is a possibility that] Trump capitulates in some way (perhaps he’ll delay implementation, in an effort to save face).”
There is no evidence that Tesla will be completely bulletproof when it comes to these potential impacts. However, it is definitely better insulated than other companies.
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Tesla (NASDAQ: TSLA) received a price target boost from analysts at Truist Securities, but it came with some criticisms based on a lack of information on several things that investors were excited to hear about regarding future vehicles and AI achievements.
Last night, Tesla reported its earnings from the fourth quarter of 2024, and while it had a very tempered financial showing, missing most of the Wall Street targets that were set for it, the stock was up after hours and on Thursday due to the details the company released regarding its plans for 2025.
CEO Elon Musk stunned listeners last night by revealing plans to launch unsupervised Full Self-Driving as a service in Austin in June 2025. It will be the first time Tesla will offer driverless FSD rides in public, something it has been working with the City of Austin on since December.
Tesla to launch unsupervised Full Self-Driving as a service in Austin in June
It also reiterated plans for affordable models to be launched this year, potentially catalyzing annual growth in deliveries, something it said it expects to resume in 2025.
Tesla was flat on deliveries in 2024 compared to 2023.
The positives during the call were enough for Truist Securities analyst William Stein to raise the company’s price target to $373 from $351. However, Stein’s note to investors showed there was something to be desired despite all the good that was revealed during the call:
Stein said there was “not enough ground-truth” during the call and too much of a focus on “cheerleading” the company’s potential releases this year:
“Too much cheerleading; not enough ground-truth. In Q4, TSLA’s ASP weakness drive revenue, GPM, OPM, & EPS below consensus.”
As previously mentioned, Tesla did report weak financials that missed consensus estimates. What saved the call and perhaps the stock from plummeting on these missed metrics was the other details that Musk revealed, especially the FSD launch in Austin in June.
There were also plenty of things related to the affordable models and other vehicles, like the fact that Tesla plans to include things like Steer by Wire, Adaptive Air Suspension, and Rear Wheel Steering, that helped offset negatives.
Stein saw this as a distraction from what should have been reported:
“While CEO Elon Musk played the role of cheerleader, calling for TSLA’s path to massive market cap by leading in autonomy, management was remarkably short on two critical details: (1) info about new vehicles in 2025 and (2) milestones for AI acheivements, especially FSD. We continue to ask ourselves ‘where’s the beef?’ CY26 EPS to $3.99 (from $4.87). DCF-derived PT to $373 (from $351).”
Tesla did detail some AI milestones, like its record-breaking miles per accident on Autopilot, which was a Q4-best of 5.94 million miles. The Shareholder Deck also outlined major upgrades to AI:
“In Q4, we completed the deployment of Cortex, a ~50k H100 training cluster at Gigafactory Texas. Cortex helped enable V13 of FSD (Supervised)1, which boasts major improvements in safety and comfort thanks to 4.2x increase in data, higher resolution video inputs, 2x reduction in photon-to-control latency and redesigned controller, among other enhancements.”
Tesla shares are up 2.11 percent on Thursday as of 12:05 p.m. on the East Coast.
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Tesla has released its Q4 2024 vehicle safety report. Similar to data from previous quarters, vehicles that were operating with Autopilot technology proved notably safer.
The Q4 2024 report:
- As per Tesla, it recorded one crash for every 5.94 million miles driven in which drivers were using Autopilot technology.
- The company also recorded one crash for every 1.08 million miles driven for drivers who were not using Autopilot technology.
- For comparison, the most recent data available from the NHTSA and FHWA (from 2023) showed that there was one automobile crash every 702,000 miles in the United States.
Previous safety reports:
- In Q3 2024, Tesla recorded one crash for every 7.08 million miles driven in which drivers were using Autopilot technology and one crash for every 1.29 million miles driven by drivers not using Autopilot technology.
- In Q2 2024, Tesla recorded one crash for every 6.88 million miles driven in which drivers were using Autopilot technology, and one crash for every 1.45 million miles driven for drivers not using Autopilot technology.
- In Q1 2024, Tesla recorded one crash for every 7.63 million miles driven in which drivers were using Autopilot technology, and one crash for every 955,000 million miles driven for drivers not using Autopilot technology.
Year-over-Year Comparison:
- In Q4 2023, Tesla recorded one crash for every 5.39 million miles driven in which drivers were using Autopilot technology and one crash for every 1.00 million miles driven for drivers not using Autopilot technology.
Key background:
- Tesla began voluntarily releasing quarterly safety reports in October 2018 to provide critical safety information about our vehicles to the public.
- On July 2019, Tesla started voluntarily releasing annual updated data about vehicle fires as well.
- It should be noted that accident rates among all vehicles on the road can vary from quarter to quarter and can be affected by seasonality, such as reduced daylight and inclement weather conditions.
Don’t hesitate to contact us with news tips. Just send a message to simon@teslarati.com to give us a heads up.
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