Category: EV vehicles

  • Panasonic Aims for 25% EV Range Boost with New Battery Tech by 2027

    Panasonic Aims for 25% EV Range Boost with New Battery Tech by 2027

    Key Takeaways

    1. Panasonic is developing a new battery system that could increase electric vehicle driving range by 25%.
    2. The new battery technology removes the anode during manufacturing, allowing for higher energy storage capacity.
    3. A first-time charging process will create a lithium metal anode, enabling more active cathode materials without increasing battery size or weight.
    4. A 25% range increase could add approximately 90 miles (145 km) to the Tesla Model 3, potentially achieving around 450 miles on a single charge.
    5. Panasonic aims to reduce battery costs by using less nickel, but it is unclear if this will lower electric vehicle prices.


    Range anxiety is still a big worry for those who own electric vehicles. But, Panasonic has shared some exciting news: they might be on the verge of a major breakthrough that could increase driving range by 25 percent.

    New Battery Development

    Panasonic is working on a new battery system that has a higher energy storage capacity by removing the anode during the manufacturing process. As reported by Reuters, the company aims to have this technology ready by the end of 2027.

    Innovative Charging Method

    When the battery is charged for the first time, it will form a lithium metal anode. This process allows Panasonic to include more active cathode materials, which boosts the energy capacity without changing the size or weight of the battery.

    Impact on Driving Range

    To illustrate what a 25 percent increase means, imagine it adding around 90 miles (145 km) to the Tesla Model 3’s range. This means that the most affordable Tesla could achieve about 450 miles on just one charge, all without any extra weight or larger battery size.

    Cost Considerations

    In addition to improving range, Panasonic is also looking to save costs by reducing the amount of nickel in the battery. However, the energy giant hasn’t confirmed whether this new technology will lead to lower prices for electric vehicles from Tesla or other manufacturers.

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  • Tesla Panasonic Tips for Solid-State Battery and 4680 Cell Production

    Tesla Panasonic Tips for Solid-State Battery and 4680 Cell Production

    Key Takeaways

    1. Panasonic plans to mass produce solid-state batteries starting next fiscal year, beginning with a pilot batch for customer evaluation.
    2. The initial focus for solid-state battery applications will be on humanoid robots and drones, due to their higher energy density and safety features.
    3. Solid-state batteries can achieve energy densities of up to 500 Wh/kg, surpassing current lithium-ion batteries.
    4. Panasonic is also set to begin mass production of the 4680 battery, which is crucial for Tesla’s production capabilities.
    5. Tesla has made breakthroughs in 4680 cell production, prompting Panasonic to potentially develop improved cells for better charging times.


    Panasonic is ready to invest significantly and will begin mass production of solid-state batteries in the upcoming fiscal year.

    Production Plans

    Shoichiro Watanabe, Panasonic Energy’s Chief Technology Officer, stated that the company will first produce a pilot batch of solid-state batteries. This initial batch will allow customers to assess the cost and reliability of these batteries over the next couple of years. Other key players in the solid-state battery market, such as Toyota, Samsung, and CATL, have also set 2027 as their target for achieving significant production levels for use in electric vehicles, drones, robots, and wearables.

    Target Applications

    Panasonic’s solid-state battery packs will initially focus on humanoid robots, like Tesla’s Optimus, as the company believes this technology is better suited for robotics and drones due to its higher manufacturing costs. Solid-state batteries can achieve energy densities of up to 500 Wh/kg, surpassing the capabilities of current lithium-ion batteries with liquid electrolytes, enabling them to deliver more energy in the same space.

    These solid-state cells are also noted for being safer and able to endure higher temperatures, making them ideal for challenging environments where robots and drones might need to function. “Our goal is to penetrate the market by showcasing the potential of solid-state batteries,” Watanabe mentioned.

    Future Developments

    While Panasonic will kick off its solid-state battery pilot next year, it is also poised to begin mass production of the 4680 battery shortly, as Watanabe reported.

    Currently, Panasonic produces 2170 cells for Tesla’s Model Y and other vehicles in the United States. Elon Musk has been urging Panasonic to expedite the development of the 4680 batteries to enhance Tesla’s production capabilities at Giga Texas.

    Tesla nearly abandoned its efforts on 4680 cell production due to manufacturing costs being higher than those of suppliers like Panasonic or LG. However, after announcing a breakthrough in dry cathode production methods, Tesla has not only remained competitive but is also looking to expand 4680 battery production for its current and future vehicle lineup, seemingly with some assistance from Panasonic.

    The existing 4680 battery packs used in Tesla’s Cybertruck have a relatively slow charging curve, so it will be intriguing to see if Panasonic can develop superior 4680 cells that improve charging times compared to Tesla’s version.

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  • Government Incentives Boost EV Interest: 1 in 3 Drivers Ready to Switch

    Government Incentives Boost EV Interest: 1 in 3 Drivers Ready to Switch

    Key Takeaways

    1. Government grants are a major motivator for UK consumers to adopt electric vehicles (EVs), with one-third of participants indicating interest due to incentives.
    2. In London, 54% of surveyed individuals are considering battery-powered vehicles, largely influenced by the Electric Car Grant (ECG).
    3. Younger people (ages 17 to 34) are more likely to switch to EVs within two years compared to only 27% of those aged 55 and older, who have concerns about driving range and charging station availability.
    4. Nearly half of car dealers (48%) believe the ECG will boost EV sales, but 28% worry it could negatively impact the used EV market.
    5. There is a gender gap in EV purchasing intentions; 63% of men versus 46% of women are interested in buying an electric vehicle, with women prioritizing lower prices and availability of used EVs.


    A recent study funded by Renault has revealed that a significant motivator for the adoption of electric vehicles (EVs) is the government grants available. Among UK participants, one-third indicated that the new incentives have sparked their interest in electric cars.

    London’s Response to EV Incentives

    In London specifically, 54% of those surveyed expressed their willingness to consider a battery-powered vehicle, largely due to the Electric Car Grant (ECG) introduced by the government during the summer season. This initiative seems to have had a notable impact on public perception.

    Moreover, the findings highlight that younger individuals aged 17 to 34 are far more inclined to switch from petrol cars within the next two years. In contrast, only 27% of older adults, those 55 and older, acknowledged that they might make the transition. This older group highlighted concerns such as the need for a longer driving range, increased availability of charging stations, and lower starting prices as their primary issues.

    Dealer Perspectives on EV Sales

    From the perspective of car dealers, 48% believe that the new ECG is likely to significantly enhance EV sales in the UK. However, 28% expressed worries that the grant might have a detrimental effect on the market for used EVs.

    The data further indicates a gender gap in EV purchasing intentions, with only 46% of women showing interest in buying an electric vehicle in the next two years, compared to 63% of men. Women in particular emphasized factors like lower prices and the presence of used EVs as critical to their purchasing decisions.

    Renault’s Commitment to Electric Vehicles

    Renault has backed this survey as it gears up to launch a showroom specifically for electric vehicles. The company’s four electric models are eligible for the ECG, showcasing its commitment to the growing EV market.

    Motor Trade News, Fleet World

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  • 2025 Tesla Cybertruck Crash Test: NHTSA vs IIHS Ratings Revealed

    2025 Tesla Cybertruck Crash Test: NHTSA vs IIHS Ratings Revealed

    Key Takeaways

    1. The IIHS gave the 2025 Tesla Cybertruck mixed ratings, with a ‘good’ score for the Moderate Overlap Front Crash Test applicable only to models produced after April 2025.
    2. The Cybertruck received a ‘marginal’ rating for the Seat Belt Reminder system and ‘poor’ for headlight performance, impacting its eligibility for IIHS’s Top Safety Pick awards.
    3. The Cybertruck was not evaluated in Small Overlap Front and Side Crash test categories by IIHS, limiting its overall safety assessment.
    4. The NHTSA awarded the Cybertruck a top overall rating, scoring five stars in front and side crash tests and four stars for rollover resistance.
    5. The contrasting ratings from IIHS and NHTSA highlight differences in safety assessment criteria between the two organizations.


    The crash tests for the 2025 Tesla Cybertruck showed very different results from two different groups. The Insurance Institute for Highway Safety (IIHS), which is a nonprofit that assesses vehicle safety, tested the Cybertruck and gave it mixed ratings. On the other hand, the National Highway Traffic Safety Administration (NHTSA), a government body that gives safety ratings, nearly rated the electric truck perfectly.

    Moderate Overlap Front Crash Test Results

    In the Moderate Overlap Front Crash Test done by IIHS, the Cybertruck got a ‘good’ rating. However, this rating only applies to models produced after April 2025, when Tesla improved the truck’s front underbody. Older models do not meet this standard. The truck also received a ‘good’ score for the Pedestrian Crash Prevention test, but it was not assessed for vehicle-to-vehicle crash prevention.

    Seat Belt and Headlight Ratings

    The Seat Belt Reminder system received a ‘marginal’ rating, while the LATCH system for securing car seats was rated ‘acceptable’. The lower anchors were easy to reach, but the top tether anchors proved to be more difficult to use. The worst score came from the headlights, which the IIHS marked as ‘poor’.

    IIHS did not evaluate the Cybertruck in the Small Overlap Front and Side Crash test categories. Due to the absence of these results and its poor headlight rating, the truck cannot be considered for the organisation’s Top Safety Pick or Top Safety Pick+ awards. To qualify for these awards, a vehicle must have strong crash test ratings, good or acceptable results for headlights, and effective crash prevention systems. The ‘Plus’ category requires a good score in the moderate overlap crash test as well.

    NHTSA’s High Ratings

    In contrast, the NHTSA awarded the Cybertruck its top overall rating. It scored five stars in both the front and side crash tests, and four stars for rollover resistance. According to NHTSA’s criteria, this makes it one of the safest trucks available on the market right now.

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  • New Li-Metal Battery Tech Achieves 99.9999% Efficiency for EVs

    New Li-Metal Battery Tech Achieves 99.9999% Efficiency for EVs

    Key Takeaways

    1. Researchers at Shandong University developed a new electrode material for Li-metal batteries that prevents volume changes, enhancing battery stability.
    2. The innovative design uses a composite of reduced graphene oxide and zinc oxide, maintaining electrode size and protecting lithium from electrolyte damage.
    3. Laboratory tests showed impressive charge efficiency of 99.99% to 99.9999% over nearly 2,000 cycles, indicating high potential for practical applications.
    4. The new technology could enable high-energy-density batteries for electric vehicles, offering longer ranges and smaller batteries for devices.
    5. The research team aims to refine their design and seek industry partnerships to bring these batteries to market within the next 3 to 5 years.


    A team of researchers at Shandong University has created a novel electrode material that avoids the physical volume changes that typically lead to the rapid deterioration of Li-metal (lithium-metal) batteries. The findings, published in Nature Nanotechnology, hold the potential for high-energy-density Li-metal batteries that could power electric vehicles (EVs) with longer ranges and allow for larger batteries in smaller devices.

    Challenges with Li-metal Batteries

    Li-metal batteries are often viewed as the ideal solution in battery technology due to their ability to store more energy than traditional lithium-ion batteries. However, their advancement has been stalled by several issues, one of the main being the ‘volume change’ problem. This issue arises as the electrodes, particularly at the anodes, expand and contract during the charging and discharging processes, leading to cracks and overall battery degradation.

    Innovative Design Solutions

    To tackle this challenge, the new design introduces a composite host for lithium, made from reduced graphene oxide and zinc oxide. This innovative structure includes rigid cavities that securely hold the lithium. As a result, the overall size of the electrode remains stable, and it also provides a “corrosion-proof armor” that protects the reactive lithium from the harmful effects of the electrolyte.

    Impressive Results

    The results from laboratory tests were highly encouraging. The new electrode achieved a charge efficiency ranging between 99.99% and 99.9999% for nearly 2,000 cycles, significantly surpassing the stability needed for practical battery applications. If we take the average efficiency of 99.99495%, this implies that the battery could maintain over 95% of its capacity after 1,000 charge cycles, although this estimate does not factor in other variables.

    Just two weeks ago, we shared a similar advancement made by researchers at KAIST and LG Energy Solution. That study, which appeared in Nature Energy, explored a new liquid electrolyte designed to address the dendrite problem in Li-metal batteries, enabling a battery to achieve a range of 500 miles with a quick 12-minute charge.

    Future Prospects

    The team responsible for the new ‘zero-volume-change’ electrode is now focusing on refining their design for commercial applications. They are seeking industry partnerships to make these batteries available to the public within the next 3 to 5 years.

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  • XPeng G6 & G9: Top Chinese Electric SUVs with Best Charging & Range

    XPeng G6 & G9: Top Chinese Electric SUVs with Best Charging & Range

    Key Takeaways

    1. XPeng has launched two new electric SUVs, the G6 and G9, focusing on charging efficiency, driving range, and battery lifespan with an 800-volt architecture for ultra-rapid charging.
    2. The G6 and G9 can charge from 10% to 80% in just 12 minutes, offering ranges of 535 km (332 miles) and 585 km (363 miles), respectively.
    3. New thermal management techniques and charging algorithms allow for fast charging without significantly degrading battery life, with both models claiming 30% longer battery lifespan than standard batteries.
    4. The G6 and G9 outperform competitors like the BMW iX3 and Porsche Taycan in charging speed and range, addressing the trade-off between charging time and battery durability.
    5. Both SUVs emphasize luxury features, with high-end comforts like adjustable leather seats and advanced suspension systems, while also providing a competitive warranty of eight years or 160,000 km on the battery.


    XPeng, a manufacturer of electric vehicles from China, has introduced two new electric SUVs, the G6 and G9, designed to redefine the benchmarks for charging efficiency, driving range, and battery lifespan. Both SUVs utilize an 800-volt architecture that facilitates ultra-rapid charging. XPeng states that the G6 achieves a peak charging power of 451 kW, while the G9 can reach up to 525 kW. Users can charge these models from 10% to 80% in merely 12 minutes at compatible fast-charging stations, providing a range of up to 535 km (332 miles) for the G6 and 585 km (363 miles) for the G9. Hence, these vehicles merge ultra-quick charging times with high practical usability.

    Battery Longevity and Performance

    There is technically a paradox between fast charging capabilities and battery lifespan, as high charging currents typically raise cell temperatures, leading to faster aging and reduced battery life. XPeng asserts that it has created new thermal management techniques and charging algorithms that allow for a C-rate of up to 5 without accelerating battery degradation. The G6 features an 80.8 kWh LFP battery, while the G9 has a larger 83.1 kWh LFP battery, both of which are claimed to last 30% longer than standard high-performance batteries. This innovation is intended to support extremely quick charging times without affecting battery durability.

    Understanding C-Rate

    The term C-Rate refers to the relation between battery capacity and charging power. For instance, a 100 kWh battery charged at a 1C rate would take one hour to fully charge, while at 2C, it would take just 30 minutes. At 5C, like the XPeng G6 and G9, the charging power is five times the battery’s capacity, allowing for a full charge theoretically in about twelve minutes. However, in reality, the faster charging is typically applied to the range of 10% to 80%.

    Competitive Comparison

    For context, the BMW iX3 50 xDrive with an 800-volt system supports a maximum charging power of 400 kW and can achieve a range of approximately 372 km (231 miles) in 10 minutes. The Porsche Taycan has a peak charging capability of 270 kW. XPeng significantly surpasses these figures with up to 585 km (363 miles) in the G9, effectively addressing the common dilemma between charging speed and battery durability.

    Comfort and Features

    Beyond technical advancements, XPeng also prioritizes luxury comfort. The G6 comes with electrically adjustable leather seats that have massage functions, while the G9 is equipped with air suspension and electromagnetic dampers. Both models boast panoramic roofs, and the G6 can optionally include a trailer hitch with a towing capacity of up to 1,500 kg. These vehicles amalgamate high-performance tech with useful features.

    XPeng provides an eight-year or 160,000 km warranty on the battery. The manufacturer claims that the high-voltage battery remains robust despite its fast-charging capabilities, thanks to the new algorithms and thermal management that reportedly minimize aging.

    Pricing Overview

    The G6 starts at €47,600 (about $56,235) for the base model, with the Performance version priced at €51,600 (around $61,000). The G9 begins at €63,600 (approximately $75,000) for the Long Range version and €72,600 (about $85,700) for the all-wheel-drive variant.

    The XPeng G6 and G9 illustrate that Chinese electric vehicles are becoming strong contenders against established premium brands in areas such as technical innovation, charging performance, range, and comfort. The fusion of ultra-fast charging, enhanced battery longevity, and practical features signifies a major leap forward in the electric SUV market.

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  • New Tesla Study: Model Y Insurance Premiums Can Be Lower

    New Tesla Study: Model Y Insurance Premiums Can Be Lower

    Key Takeaways

    1. The Tesla Model Y’s rear gigacast design is cheaper to repair after accidents compared to traditional multi-link body structures used by other manufacturers.

    2. A study found that fixing the Model Y’s single-piece cast aluminum rear is nearly $3,000 less expensive than repairing similar damage on vehicles with multi-panel designs.

    3. Tesla’s repairability innovations, like swappable cast rear rail assemblies, simplify repairs for minor damages and reduce costs for insurers.

    4. For severe damages, Tesla provides the gigacast rear at cost, saving insurers $700 per claim, although repairs requiring welding must be done at authorized service centers.

    5. Tesla’s focus on repair-friendly designs during manufacturing, such as using bolted joints instead of riveted ones, enhances the overall ease of repairs compared to traditional vehicle designs.


    The gigacast rear of the Tesla Model Y is actually less expensive to repair after an accident than the conventional multilink structures used by other automakers for their vehicles.

    Study Insights

    A new in-depth study focused on Model Y accidents and their repair expenses reveals that Tesla has made significant strides in making its popular vehicle easier to repair. In fact, it is now more affordable to fix or even swap out the single cast aluminum piece that makes up the rear of the SUV compared to similar damage on cars with traditional multi-panel designs.

    The Thatcham Research organization collaborates with major insurance companies to offer insights into repair costs and the pricing they need to implement to recover expenses. Tesla owners have frequently voiced concerns about their insurance being pricier than for other car brands, and there’s a valid reason: the Model Y insurance premiums can be as much as 40% higher than the average for its category.

    Repair Preferences

    One reason insurers often choose to declare electric vehicles a total loss instead of repairing them is the lengthy and costly repairs that can occur if structural damage affects the battery or other components during a collision. Rental company Hertz even backed out of its order for 100,000 Teslas and sold the delivered vehicles at a loss, citing high repair costs and quick depreciation rates.

    When Tesla began using one-piece gigacast body components for models like the Model Y, both competitors and insurers raised concerns about how this cost-effective manufacturing method would drive up EV insurance rates. To address these repairability concerns, Tesla took action, prompting Thatcham Research to initiate a two-year analysis to see if they were successful.

    Repair Cost Analysis

    Thatcham examined several scenarios of Model Y crash damage based on genuine insurance claims. They discovered that the expense to repair the gigacast rear is almost $3,000 less than fixing equivalent damage on the multi-panel Model 3. A similar trend was observed for repairs on internal combustion engine vehicles and other electric models like the Mercedes EQE or the Hyundai Ioniq 5.

    Thatcham’s Billyeald has labeled Tesla’s $40 swappable cast rear rail assemblies as a revolutionary development, particularly for minor impacts typical of low-speed city collisions. He explained, “Tesla has figured out how to section these areas, allowing repair parts to be bolted and glued. This means you don’t have to manipulate the aluminum sections, and the repair process becomes almost entirely mechanical, which makes it much easier.”

    Repair Challenges

    For more serious damage resulting from high-speed incidents, the Model Y also offers lower repair costs compared to other vehicles, as Tesla has opted to supply the entire gigacast rear to service centers at cost, which saves insurers around $700 per claim. However, a downside to the Model Y’s repairability is that if the aluminum gigacast section requires welding, the SUV must go to Tesla-licensed service centers, which smaller repair shops may not be equipped to handle due to space constraints, potentially delaying repairs.

    Nevertheless, as noted by the lead engineer of the study, when companies like Tesla prioritize repairability in their design phases, they often use repair-friendly techniques such as welded joints instead of riveted ones. He remarked, “On the Tesla, you can drill out the welds with a few extra bolted fixings… and then you just replace the rivets,” commending the thoughtful design as being easier to manage than standard multi-panel constructions.

    Get the 80A Tesla Gen 2 Wall Connector with 24′ cable on Amazon.

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  • BYD Launches Electric Bus with Blowout Stability for Safer Rides

    BYD Launches Electric Bus with Blowout Stability for Safer Rides

    Key Takeaways

    1. The e-Bus Platform 3.0 features a high-speed tire blowout stability system that maintains bus balance at speeds up to 63 mph (100 km/h).
    2. A smart emergency button on the dashboard allows passengers to safely stop the bus if the driver becomes incapacitated.
    3. The innovative cell-to-chassis battery system lowers the bus’s ride height and enhances performance, especially for electric double-decker models.
    4. The platform supports faster charging with a 1,000-volt system designed specifically for buses.
    5. The first bus using this platform is the C11, offered in China with driving ranges up to 453 miles (730 km) and available to American riders through BYD’s California manufacturing.


    BYD has just introduced its latest e-Bus platform, designed to enhance safety for passengers, even in the event of tire blowouts. This innovative technology includes a cell-to-chassis battery arrangement and an adaptive suspension system.

    Safety and Performance Upgrades

    The e-Bus Platform 3.0 boasts improved safety features and performance capabilities. A standout aspect is the high-speed tire blowout stability system, which maintains the bus’s balance at speeds of up to 63 mph (100 km/h). According to BYD, this system is quick to respond, activating in just milliseconds after detecting a problem.

    Emergency Stop Feature

    Additionally, the platform includes a dashboard button that passengers can use to stop the bus if the driver becomes incapacitated or unresponsive. This feature adds another layer of safety for those on board.

    Innovative Battery Design

    The e-Bus Platform 3.0 incorporates a unique cell-to-chassis design that integrates the Blade lithium-iron-phosphate (LFP) battery directly into the chassis. This approach allows for a lower ride height, which may be particularly advantageous for electric double-decker buses.

    Fast Charging Capabilities

    This new platform also facilitates quicker charging with the introduction of the first 1,000-volt system for buses. Nevertheless, BYD has not disclosed the specific charging times for vehicles built on this platform.

    Many of the cutting-edge features found in the latest e-Bus are derived from BYD’s passenger vehicles, showcasing how the company effectively repurposes technology across its product lines.

    The C11 Bus Model

    The first bus utilizing BYD’s new platform is the C11, currently available in China. The model comes in five different trims and offers driving ranges of up to 453 miles (730 km) based on CLTC standards.

    Interestingly, despite BYD’s cars not being sold in the US, American passengers might still use buses like the C11. The Chinese manufacturer has been producing electric buses and trucks in California for over a decade now.

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  • NHTSA Investigates 174,000 Tesla Model Ys for Door Handle Issues

    NHTSA Investigates 174,000 Tesla Model Ys for Door Handle Issues

    Key Takeaways

    1. The NHTSA’s Office of Defects Investigation is examining the Tesla Model Y SUV due to complaints about door handle malfunctions from nine owners.
    2. Some incidents involved parents who couldn’t open back doors to access their children, leading to dangerous situations where windows had to be broken.
    3. Initial findings suggest that electronic door locks may fail if the battery voltage is low, but owners reported no warnings about low battery.
    4. The investigation affects approximately 174,000 2021 Tesla Model Y vehicles in the U.S., following reports of electronic door handle issues.
    5. While there is a manual door override feature, it can only be activated from inside the car, and owners must be aware of it to use it.


    The NHTSA’s Office of Defects Investigation (ODI) has started looking into the Tesla Model Y SUV following complaints from nine owners who said they couldn’t get into their cars because of the door handle issues.

    Safety Concerns for Parents

    ODI reported that some of these incidents involved parents who were unable to open the back doors to get to their children after leaving the vehicle. In some cases, owners had to break a window to get their kids out.

    Findings on Door Lock Malfunctions

    Initial investigations by ODI show that the electronic door locks in the Model Y might not work properly if the battery doesn’t provide enough voltage. However, the owners who complained didn’t mention getting any warnings about a low-voltage battery.

    The Preliminary Evaluation (PE) from ODI aims to “examine the extent and seriousness of this issue, along with the dangers that come from the problems noted in the VOQs.” It will also “evaluate how Tesla supplies power to the door locks and the dependability of the relevant power supplies.”

    Impact on Tesla Model Y Owners

    This investigation is specifically looking at the 2021 Tesla Model Y and impacts around 174,000 vehicles in the United States. The inquiry follows a report from Bloomberg discussing possible electronic door handle issues.

    While it’s technically feasible to provide power to the Tesla door locks again, the method isn’t very simple and needs an outside power source. The company does offer a manual door override feature, but it can only be used from inside the car, and owners must know about it to use it.

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  • Sodium Batteries: Charge Fully in Just 6 Minutes

    Sodium Batteries: Charge Fully in Just 6 Minutes

    Key Takeaways

    1. Sodium-ion batteries are a cost-effective and eco-friendly alternative to lithium-based batteries, utilizing abundant sodium found in table salt.
    2. The innovative anode-free design generates the anode during charging, addressing previous issues with short circuit risks.
    3. Increasing sodium salts concentration in the electrolyte improves ion deposition and battery stability, enabling fast charging capabilities.
    4. The batteries can charge fully in six minutes and retain over 70% capacity after 500 cycles, showing promise for longevity.
    5. Successful commercial production of these batteries could significantly lower costs for electric vehicles and renewable energy storage solutions.


    According to a research group from Lingnan University in Hongkong, sodium-ion batteries have been a budget-friendly and eco-friendly option to lithium-based energy storage solutions for many years. Sodium is nearly limitless on Earth, found as table salt, and much cheaper to extract than lithium. This means these batteries could offer lower costs and reduced reliance on scarce materials. Nonetheless, earlier methods faced issues like short lifespans and dangers during rapid charging.

    Innovative Design Approach

    The research team adopted an innovative anode-free design, where there is no fixed anode installed. Rather, the anode is created during the charging process as sodium ions deposit onto a collector. In past experiments, this method often resulted in dendrite formation – tiny metal structures that can trigger short circuits. Fast charging particularly intensified this issue.

    Breakthrough in Electrolyte Concentration

    Scientists from Hong Kong and Beijing tackled this challenge by significantly upping the sodium salts concentration in the electrolyte. This strategy ensures that there are enough ions close to the collector during charging, allowing for even deposition. Consequently, the battery maintains stability, even when charged quickly. In tests, the cell demonstrated a fast-charging capability of 10C, fully charging in just six minutes. After 500 charge cycles, it retained over 70% of its original capacity.

    Potential Impact on the Market

    “Sodium is less than a tenth of the cost of lithium, is abundant in seawater, and can drastically drop the prices of electric vehicles and energy storage solutions,” said project lead Prof. Li Liangliang. The researchers believe their work is a significant move toward widespread energy storage use. Possible uses include electric cars, stationary storage systems for renewable energy, and even portable gadgets.

    These findings are still in the lab phase. The next goal is to advance the anode-free sodium battery beyond the prototype level for commercial production. If they succeed, this technology might pose a real challenge to lithium-ion systems.

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