Toyota has faced criticisms but also praise for not diving head-first into EVs. You see, Toyota is a company that doesn’t use technology that isn’t convenient just because everyone is following. Electric vehicles have come a long way, and they offer clear benefits. However, they are still limited in what they can do due to their charging and range. Toyota might not have followed the crowd, but this doesn’t mean that the company hasn’t invested in research. Remember, Toyota was actually the company that brought us hybrids and even made an electric RAV4 back in the 1990s. Toyota’s new solid-state batteries are expected to be cheaper and safer while also being able to provide roughly 750 miles of range.
The Differences Between Toyota’s Solid-State and Normal Lithium-ion Batteries
Lithium-ion batteries found in most EVs currently on the road use a liquid-form electrolyte. This electrolyte facilitates the movement of charged particles between the battery's electrodes.
The use of this liquid electrolyte presents certain challenges and concerns. Lithium-ion batteries are prone to leakage and can overheat, which could lead to a significant risk to the driver and passengers. The electrolytic material in Lithium-ion batteries typically consists of lithium salts and organic solvents which are highly flammable and can ignite when exposed to oxygen.
Additionally, lithium-ion batteries tend to decline over time, leading to decreased performance as they age. This decrease in performance due to age can lead to battery replacements which are extremely expensive. Decreased performance can also be observed in cold weather. These safety concerns have grabbed attention but have also shown the need for better technology.
How Solid-State Batteries Work
As the name suggests, solid-state batteries replace the liquid or gel-form electrolyte with a solid material, which offers several advantages. Firstly, the elimination of the flammable liquid electrolyte significantly enhances the safety of the battery; solid-state batteries are less prone to leakage, overheating, and the associated risks of fire. This improved safety aspect is of great importance for electric vehicles. Furthermore, solid-state batteries have the potential to offer high energy density, meaning they can store more energy in the same amount of space. This increased energy density could result in longer driving ranges for EVs while also reducing the concern of range anxiety among consumers.
Moreover, solid-state batteries are expected to have a longer lifespan and better durability compared to lithium-ion batteries (although this is still a hurdle as you will see later on). With reduced degradation over time, solid-state batteries could offer more sustained performance and longevity. Therefore, reducing the need for frequent battery replacements and lowering ownership costs. With a high energy density, solid-state batteries can be produced in more compact forms, preventing the expansion and shrinkage of the material that leads to degradation experienced by lithium-ion batteries. This also means quicker charging times for the vehicles.
However, there are challenges that need to be overcome before these goals can be realized. One major obstacle is the high cost of producing these advanced batteries. Manufacturing solid-state batteries, in particular, can be expensive at the moment. Another hurdle lies in finding a suitable solid electrolytic material that can effectively conduct the electrolytes at room temperature. Furthermore, the lifespan or durability of these batteries has been a persistent issue for engineers in the industry. Ensuring that the batteries can withstand numerous charges and discharge cycles over an extended period of time without significant degradation is something Toyota is working on.
Despite these challenges, Toyota claims to have made significant progress in addressing the lifespan issue and finding breakthrough solutions for these hurdles. The company has conducted research and development to improve the technology, aiming to implement these advanced batteries into its vehicles by 2027.
Toyota’s Vision for The Future
Toyota's leadership in solid-state battery research comes as no surprise, given the company's extensive portfolio of over 1,000 patents in this field. Toyota intends to initially deploy these batteries in their hybrid vehicles a few years before launching more fully electric vehicles. When the solid-state batteries become available, Toyota claims that their EVs will achieve an impressive range of 745 miles. Of course, there is no guarantee that by 2027, 745 miles will be the record as many manufacturers are striving to increase the range of their models.
Furthermore, Toyota's advanced technology aims to significantly reduce charging times, with the expectation of reaching just 10 minutes for a full charge. In the future, Toyota plans to introduce a second-generation solid-state battery technology that will further enhance its electric vehicles. This advanced battery is projected to offer an impressive range of 932 miles on a single charge. Additionally, the charging times for these new batteries are expected to be less than 10 minutes which will drastically increase the usability of electric vehicles.
These improvements in range and charging speed are substantial and address two critical factors that impact the adoption and convenience of electric vehicles. However, despite these exciting advancements, the timeline for widespread adoption of Toyota's new solid-state battery technology extends until the end of the decade. The primary reason for this delay is the high production cost associated with manufacturing solid-state batteries.
Competition For The Solid-State Battery Crown
Toyota is not the only company working on these batteries. Several other automakers are also engaged in a race to commercialize solid-state batteries. In November 2022, Honda made an exciting announcement about a new polymer fabric that could potentially extend the lifespan of current solid-state batteries. Although Honda has not yet disclosed details regarding charging times or expected ranges, they plan to make these batteries available to the public by 2028.
It's clear that as the EV industry evolves, the race for battery innovation and supremacy will intensify. Automakers around the globe are pushing their R&D departments to the limit in hopes of achieving the next big breakthrough.
Toyota's Resilience in The EV Market
While Toyota has been accused of lagging behind some other car brands in the EV industry, it now seems that the time they spent waiting wasn't wasted. The company has ambitious plans for expansion. It is focusing not just on short-term trends, but on long-term sustainability and market leadership. With the forthcoming introduction of its solid-state batteries and research in hydrogen internal combustion engines Toyota is poised to make a significant impact in the EV market, potentially reshaping the landscape of mobility.
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