Japanese company Hitachi Zosen introduced a new solid-state battery, writes Nikkei Asia. It is reported to have a record capacity of 1,000 milliampere-hours, seven times the company’s previous power source.
The main advantage of solid-state batteries is their ability to operate over a wide temperature range. Thus, the new model remains fully operational at temperatures from -40 to +100 degrees Celsius. And if the first is important in winter, then the second means that such batteries are not afraid of overheating and therefore allow ultra-fast charging with high-power electrical energy.
To test the battery, the manufacturer agreed with the Japan Space Agency to send it to the International Space Station, where it will power the external camera.
The 1000 milliampere-hour capacity, although it is a record, is not yet comparable to the capacity of lithium-ion batteries used in electric vehicles. So, for element 2170 in Tesla Model 3, this figure is 5000, and in the new 4680 batteries it will be significantly higher. Large prismatic batteries, such as the Ultium from GM’s new electric vehicles, have hundreds of times the capacity.
In this case, the voltage of the Hitachi Zosen solid-state battery is 3.65 volts, which is almost the same as the standard voltage of lithium-ion batteries. In other words, five new elements could replace one from Tesla Model 3.
Theoretically, it would be possible to assemble a battery for an electric car from such solid-state batteries, simply by increasing the number of batteries in it by five times. Unfortunately, we do not know the size and weight of the new items from Hitachi Zosen and cannot imagine what kind of battery they could be.
Solid state batteries are an old dream of many car manufacturers. In particular, according to rumors, Toyota is preparing to introduce such an electric car this year. Other companies believe that this technology will not be ready for many years.