Intro

In the 21st century we have witnessed an exponential rise in the market for all kinds of battery-powered products: computers, mobiles, audio devices, tablets, 3D glasses, cameras, hoovers, watches, etc. Although the electric car was invented in the 20th century, it is only now that it is becoming industrialised, as well as other elements of transport: motorbikes, buses, bicycles, scooters, boats, etc. Usually, in all these cases, we are interested in knowing the autonomy at a given moment.

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The battery industry is adapting to changing times by creating new technologies at a vertiginous rate, developing new chemistries, assembly techniques, chargers, logistics, materials, etc. However, ever since Alessandro Volta invented the battery, there has been one question that researchers have not been able to answer: to know at all times how much energy is reliably and accurately available in a battery, without discharging it.

 

There are currently devices that measure the available energy using the internal resistance method, but these measurements have margins of error that, in many cases, are unacceptable to both the industry and the end user. 

For example, all global reports from specialist consultancies indicate that not knowing the true range is one of the main reasons why a buyer does not purchase an EV. Solving this problem is vital for the automotive industry.

 

Patent WO2021123468 solves this and many other problems. Given its versatility, it can be implemented in a multitude of applications and for all kinds of uses.

 

The patented system is highly accurate, reliable, miniaturisable, inexpensive and with low energy consumption. It only takes a few seconds, is suitable for all battery technologies and takes any temperature into account.