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Nov 15, 2021

Some ideas about the future of electric vehicle batteries

    At present, lithium batteries occupy most of the mountain, used in various industries and fields, from digital wear, to transportation of electric bicycles, as well as including the current explosion of the topic of electric cars, full of topic sense. But for the time being, lithium batteries can only be used to power electric devices by way of energy storage, which is perfectly adequate for small devices, but for the field of electric vehicles, it is obvious that it can not meet the actual needs of everyone.



       Many people believe that the current technology of lithium batteries is limited by the charging speed, so there are constantly people in the field of charging speed to explore, while there are also some breakthroughs, but the battery can be quickly charged will also face other technical problems such as life more. These problems are like fish and bear's paw generally can not be both. I have also done a lot of thinking about this issue. For example, through the way of power exchange, at an early stage, I also think that power exchange is the solution to the dilemma of lithium battery in electric vehicles, with the understanding of fuel cells, I think fuel cells may become the mainstream way of electrification of the whole transportation in the future, and fuel cells are the only way to solve the large-scale transportation electrification in the future. The current technology of lithium battery is actually limited by its own storage method.


       Why do you say that fuel cell is the only way to solve the electrification of future transportation? From the perspective of fuel cell, if we look at the existing lithium battery, fuel cell does not change the characteristics of the battery, but it does change the way of battery power storage, first of all, it is a change in the way, from lithium battery energy storage to energy conversion. And this way of change is largely in line with the existing market pattern, may not need to do a lot of cost to achieve the transformation of transportation power. I believe that even in the future, the existing fuel cell technology is eliminated, but this approach will be continued. And lithium batteries or other more advanced energy storage methods to achieve technical milestone breakthroughs, it is also still very difficult to become the mainstream of electric vehicles as a mode of transportation battery. At the same time I also believe that the fast charging technology of lithium batteries will be an impossible technology to achieve.


       A very simple analogy. If we continue to use the energy storage method of lithium battery, then we will have to build more charging facilities exclusively for electric vehicles. And if the electric car breaks down on the way due to lack of power, you have to use a trailer, etc. The application of lithium batteries in electric cars does not solve many problems practically, although the future of transportation is the trend of electricity is also very important environmental significance, but lithium batteries are not suitable for large-scale transportation to play an important role in electricity, while the extended lithium battery recycling, as well as the amount of lithium ore will be very huge. These will undoubtedly increase the investment of the whole society in lithium batteries. Even if we replace the form of charging with a replacement. According to the current average daily throughput of our single gas station, the replacement station will become very large, because it takes a lot of capacity of backup batteries to meet the actual demand. Large-scale commercialization is also not realistic.


       Fuel cells can solve many of the problems faced, and can be used to quickly convert biofuels to electricity at a fraction of the cost. Existing gas stations can also be quickly switched to the fuel supply required by fuel cells. If the technology reaches a commercially viable level, this type of fuel cell energy conversion is bound to become the mainstream of the market.


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