Wiktor Wise
Electric vehicles (EVs) are already more than four times as energy-efficient as comparable gasoline-powered vehicles, but there are still many ways to improve their performance and efficiency. Automakers need to inspire genuine mass-market demand for EVs based on price, performance, efficiency, and range. This involves refining vehicle designs within power electronics, improving the electrical conductivity of EVs, and using protective coatings that are resilient to environmental extremes. EV owners can also improve their range by using economical driving modes, maintaining tyre pressure, and turning off unnecessary features.
| Characteristics | Values |
|---|---|
| Battery | Improve range and efficiency without adding weight or extra batteries |
| Use sintered silver instead of traditional solder to increase electrical conductivity by 40% | |
| Use thermal gap fillers to dissipate excess heat and improve battery performance | |
| Conformal coatings can provide environmental protection without adding weight or cost | |
| Charging | Regularly charge to between 20-80% to keep the battery in good condition |
| Driving style | Drive smoothly to make the most of regen braking |
| Avoid dramatic braking and acceleration | |
| Use economical driving modes to save energy and extend range | |
| Keep tyre pressure at the recommended level to reduce rolling resistance | |
| Turn off unnecessary features to conserve battery power | |
| Policy | Implement policies to reduce vehicle size and encourage recycling to reduce lithium demand |
| Implement policies to improve vehicle efficiency and reduce vehicle travel to reduce energy demand |
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What You'll Learn
Improve vehicle efficiency
Improving vehicle efficiency is a key aspect of enhancing electric vehicles (EVs). This involves a range of strategies to optimise performance, reduce energy consumption, and increase the overall efficiency of EVs.
One approach is to focus on the battery and power electronics. This includes utilising advanced thermal management systems, such as thermal gap fillers, to dissipate excess heat from the battery pack. By maintaining the optimal thermal range, the battery can perform more efficiently and reduce the risk of failure. Additionally, refinements in power electronics, such as using sintered silver instead of traditional solder, can significantly improve electrical conductivity, resulting in enhanced efficiency.
Another strategy is to adopt economical driving modes and practices. This encompasses driving smoothly, maintaining recommended tyre pressure, and minimising aggressive acceleration and braking. These practices can conserve energy and extend the driving range. Regen braking systems, which capture and store energy that would otherwise be lost during braking, also contribute to increased efficiency.
Furthermore, improvements in vehicle design and materials play a crucial role in enhancing efficiency. This includes using lightweight and environmentally friendly materials to reduce vehicle weight, which can lead to better energy efficiency. Additionally, protective coatings, such as conformal coatings, can be applied to electronic components to provide robust protection without adding excessive weight or cost.
Finally, policy interventions and combined efforts can significantly improve vehicle efficiency. This involves implementing strategies to reduce vehicle size, encourage recycling, and promote shared trips, leading to reduced energy demand and environmental impacts. These comprehensive approaches are crucial in maximising the environmental benefits of EVs and creating a more sustainable transportation system.
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Reduce vehicle size
Reducing vehicle size is one way to improve electric vehicles (EVs). Smaller vehicles can improve energy efficiency and reduce lithium demand. This strategy is particularly effective when combined with other measures such as lower speeds and more shared trips. These changes can also make streets safer for all users.
To achieve this, automakers can focus on refining vehicle designs within power electronics, rather than solely focusing on the battery. This approach can lead to improvements in range and efficiency without adding batteries or increasing vehicle weight. For example, MacDermid Alpha Electronics Solutions has been working with carmakers to explore these design possibilities.
Additionally, policies that encourage the reduction of automobile dependence and promote smaller vehicles can play a crucial role. The Climate and Community Project analysis found that implementing such policies, along with encouraging recycling, could reduce lithium demand by up to 90%. This strategy aligns with the findings of the 2016 report, "A New Way Forward," which emphasized improving vehicle efficiency and reducing vehicle travel to decrease energy demand from urban light-duty vehicles by 89 to 91%.
While there are global efforts to transition to EVs, the uptake varies across regions. Western Europe, Norway, and China are leading in EV sales, while the US lags, with EVs accounting for a small percentage of the market. To accelerate the adoption of EVs and maximize their environmental benefits, it is essential to address factors such as range anxiety, charging locations, and legislation that influence consumer choices.
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Optimise battery performance
Optimising battery performance is key to improving the range and efficiency of electric vehicles. One way to achieve this is by ensuring that excess heat is dissipated away from the battery pack. Thermal gap fillers, for instance, facilitate heat dissipation by displacing the air and filling in the gaps between multiple substrates, allowing the battery to perform more efficiently within its optimal thermal range.
Another way to optimise battery performance is by improving the electrical conductivity of the vehicle. Using sintered silver instead of traditional solder where power semiconductors are attached within the inverter can increase electrical conductivity by almost 40%.
Protective coatings also play a role in optimising battery performance. With higher voltages in electric vehicles, increased dielectric protection is required to meet size and weight constraints. Conformal coatings, for instance, are thin, protective polymeric coatings that can be applied to electronic circuit boards to provide environmental protection without adding excessive cost or weight.
Finally, tyre pressure can impact battery performance. Maintaining the recommended tyre pressure reduces rolling resistance, making it easier for the vehicle to move and extending the range.
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Implement supportive policies
Implementing supportive policies is crucial to improving electric vehicles (EVs) and enhancing their environmental benefits. Here are several paragraphs outlining specific policy suggestions:
Policy measures play a pivotal role in accelerating the adoption of electric vehicles and maximising their positive impact on the environment. One key area of focus is reducing automobile dependence through initiatives that discourage excessive vehicle use. This can be achieved by promoting and developing efficient public transportation systems, investing in infrastructure for walking and cycling, and encouraging carpooling or shared mobility services. These measures not only reduce the number of vehicles on the road but also help optimise the energy efficiency of EVs.
Additionally, policies should aim to improve vehicle efficiency and reduce travel distances. This can be facilitated by encouraging the adoption of smaller and more compact vehicles, which are generally more energy-efficient and require fewer raw materials. Implementing lower speed limits, particularly in urban areas, can also contribute to reducing energy consumption and enhancing overall road safety. These measures align with the findings of the Climate and Community Project analysis, which suggested that policies focused on reducing vehicle size and encouraging recycling could lead to a substantial decrease in lithium demand, making raw materials more accessible and mitigating environmental conflicts.
To further enhance the environmental benefits of EVs, policies should address the transition to renewable energy sources for electricity generation. This involves actively phasing out coal and other fossil fuels, investing in solar, wind, and other renewable energy sources, and ensuring that the electricity grid is optimised for EV charging. By doing so, we can maximise the advantages of EVs, as highlighted by the Union of Concerned Scientists, who found that over 90% of Americans live in regions where the average EV produces fewer emissions than the most efficient gasoline car.
Furthermore, supportive policies can be designed to incentivise the purchase and use of EVs. This may include offering tax breaks or subsidies for EV buyers, providing discounts or exemptions from road tolls and parking fees, and establishing dedicated lanes for EVs to reduce travel time. These incentives can help make EVs more affordable and convenient, thereby increasing their uptake and reducing the environmental impact of the transportation sector.
Lastly, policies should also consider the entire lifecycle of EVs, from production to recycling. This involves implementing measures to ensure responsible sourcing of raw materials, encouraging the development of more sustainable batteries, and establishing efficient recycling infrastructures. By addressing the environmental impact of EV production and end-of-life, policies can contribute to a more holistic approach to sustainability in the EV industry.
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Improve vehicle design
Improving vehicle design is a key aspect of enhancing the performance, efficiency, and sustainability of electric vehicles (EVs). Here are some strategies to achieve this:
Firstly, focus on refining vehicle designs within power electronics rather than solely relying on battery improvements. This approach can lead to increased range and efficiency without adding extra batteries or increasing vehicle weight. For instance, MacDermid Alpha Electronics Solutions has been working with carmakers to optimize designs within power electronics, resulting in significant advancements.
Secondly, manage heat dissipation within the battery pack. Excess heat can negatively impact the performance and longevity of the battery. By utilizing thermal gap fillers, equal heat spreading can be achieved, and the risk of battery failure can be reduced. This, in turn, improves the overall efficiency of the EV.
Thirdly, provide advanced protection for electrical components. With the increasing complexity of vehicle electronics, particularly in EV designs, protecting these components from temperature extremes, high humidity, condensation, and corrosive gases is essential. Conformal coatings, such as those offered by Electrolube, provide thin, protective polymeric coatings that shield electronic circuit boards from harsh conditions without adding significant weight or cost.
Additionally, vehicle size plays a role in the overall efficiency and environmental impact of EVs. Smaller vehicles can contribute to reduced energy demand and lower lithium consumption. Combining policies that encourage smaller vehicles and promote recycling can significantly enhance the sustainability of EVs.
Finally, continue to innovate and refine the design of power electronics and electrical components. For example, using sintered silver instead of traditional solder in power semiconductors can improve electrical conductivity by up to 40%. These types of innovations can have a significant impact on the overall performance and efficiency of EVs.
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Frequently asked questions
There are several ways to increase the range of your electric vehicle. Firstly, check your tyre pressure and ensure it is at the recommended level. Secondly, drive smoothly and avoid sudden braking or acceleration. Thirdly, use your electric vehicle's regen braking system, which captures and stores energy that would otherwise be lost as heat during braking. Finally, switch off any features you don't need, such as air conditioning or heated seats, to conserve battery power.
To improve the efficiency of your electric vehicle's battery, it is important to maintain optimal tyre pressure and drive gently, avoiding excessive acceleration or hard braking. Additionally, utilise the regen braking system to recapture and store energy during braking. Keep your battery charged regularly, ideally between 20% and 80%, to maintain its performance and longevity.
The environmental impact of electric vehicles can be reduced by implementing policies that encourage the use of renewable energy sources for electricity generation. This includes transitioning from coal and other fossil fuels to cleaner alternatives. Additionally, combining the adoption of electric vehicles with initiatives to reduce vehicle size, improve efficiency, and encourage recycling can significantly reduce the demand for raw materials, such as lithium, and mitigate the environmental footprint of the automotive industry.
To encourage the wider adoption of electric vehicles, it is essential to address range anxiety and performance concerns. Automakers should focus on improving the efficiency and range of electric vehicles while also considering competitive pricing. Additionally, implementing policies that support the transition to electric vehicles, such as those that reduce automobile dependence, encourage recycling, and improve vehicle efficiency, can help accelerate their uptake and maximise their environmental benefits.
