Honda has unveiled a demonstration facility in Japan for the production of solid-state batteries in January 2025, which will be used in electrified models introduced in the second half of the 2020s.
The demo facility’s production line located in Sakura City, Tochigi Prefecture serves to replicate the processes required for mass production of solid-state batteries and has a total floor area of approximately 295,000 square feet.
It is equipped with facilities and equipment that enable verification of each production process, including weighing and mixing of electrode materials, coating and roll pressing of electrode assembly and the formation of cells, and assembly of the module.
According to Honda, it is developing solid-state batteries independently and the demo facility will play a vital role in determining the basic specifications of the battery cells for mass production. As solid-state batteries swap out the liquid electrolytes found in current lithium-ion batteries with dry conductive materials, the production process completely different and requires fine-tuning to drive down the cost and amount of time needed to produce them.
The company notes a roll-pressing technique to increase the density of the solid electrolyte layers, a process unique only to the production of all-solid-state batteries, and makes continuous pressing possible. “Moreover, by consolidating and speeding up a series of assembly processes, including the bonding of positive and negative electrodes, Honda will strive to significantly reduce the production time per cell,” it said in its release.
The facility is outfitted with full-scale equipment that is split between three buildings, including for cathode formation and cell assembly, anode formation as well as electrolyte activation and module assembly.
Solid-state batteries hold the promise of higher energy density and longer lifespans, and are viewed as the key to enabling cheaper electric vehicles (EVs) to be brought to market.
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I owned a Honda Civic Hybrid with a battery replacement warranty. When the battery went bad at about 28,000 miles, they replaced it with a used or remanufactured battery that went bad in under 2,000 miles. Then I got another used battery. I became friends with another HCH owner in the waiting room who joked that “they are just exchanging OUR batteries after replacing one or two individual cells to meet meets minimum specs”.
Never trust the Honda corporation to be fully honest.
They would probably power their small jets with these batteries.
hahaha what a load of hot air from honda – honda has NO modern battery tech, liquid or solid state and this is called a “demo line”, now what exactly is that ??? honda has not published or disclosed any info about its solid state battery and this is clearly a desperate attempt to convince consumers that it is in the forefront o battery tech, perhaps also to boost its non-existence green credential – honda is being very disingenuous, deceitful and like ronbo said, cant be trusted …
Japanese carmakers have to do it themselves from scratch because Jap battery makers absolutely fail to innovate and come up their own? Look at Korea & China, they have a separate industry for battery making so car makers can focus just to build EV which use these 3rd party batteries. It works so why Japan are forcing their carmakers to reinvent the wheel?