It is estimated that solid-state batteries and lithium batteries will ultimately have to be tested by the market as to who will be the mainstream in the future.

    Dyson, a British home appliance manufacturer, announced that it will invest an additional £2.75 billion in technology and product development in the next five years to enter AI, robotics, and batteries and other fields, doubling its product portfolio by 2025. It is worth noting that this investment scale also exceeds Dyson's total product research and development of nearly 2.5 billion pounds in the past six years. Although no details were disclosed, it is expected that these investments will be concentrated in Singapore, the Philippines and the United Kingdom.

    A year ago, Dyson announced the abandonment of the electric car project. "Although we did our best throughout the development process, we still haven't found a way to commercialize it," James Dyson wrote in an email to employees. In short, Dyson has developed a great car, but it cannot make a profit from it.

    At that time, although Dyson would close its automotive department, it had already stated that it would continue to develop solid-state batteries and other technologies, including vision systems, robotics, machine learning and artificial intelligence. This means that although the electric vehicle project has been withdrawn, it will continue to develop solid-state batteries related to electric vehicles.

    In fact, as early as 2015, while starting the electric vehicle project, Dyson spent US$90 million to acquire the US solid-state battery company Sakiti3 and announced that it would invest US$1 billion to build a solid-state battery plant. And then Dyson invested a lot of energy to develop this technology, but has not announced its own research and development progress.

    In addition to Dyson, other car companies that want to compete for the pure electric vehicle market are also investing in the research and development of solid-state batteries. In 2018, the Renault-Nissan-Mitsubishi Alliance invested US$65 million in battery company Ionic Materials to develop new battery technology. The goal is to use solid-state batteries in electric vehicles produced by the alliance in 2025. Japanese media reported in 2017 that Toyota intends to sell all solid-state battery cars in 2022. BMW also announced in 2017 that it and the American battery technology company Solid Power are focusing on the development of next-generation solid-state battery technology, hoping to increase the energy density of the battery by two to three times.

    For Dyson, if it can make a breakthrough in the field of solid-state batteries, whether it is restarting the electric vehicle plan or transforming into a car supplier, it will be the beneficiary. In other words, instead of overwhelming his wealth in the electric car market, Dyson might as well invest in the field of solid-state batteries to maximize commercial benefits.

    Based on the advantages of high energy density and high safety, solid-state batteries are considered to be the best option for next-generation electric vehicle batteries. Of course, some people in the industry believe that solid-state batteries are a vase technology that is difficult to commercialize. For example, Tesla founder Elon Musk has publicly stated that he does not like solid-state batteries. However, whether solid-state batteries or lithium batteries will be the mainstream in the future is estimated to have to be tested by the market in the end.