Honda Motor Co., Ltd. has started a demonstration production line for all-solid-state batteries, marking a significant step towards mass production of this next-generation technology.
Located at Honda R&D Co., Ltd. in Tochigi Prefecture, the facility will begin operations in January 2025, with the goal of integrating all-solid-state batteries into Honda’s electrified models by the latter half of the 2020s.
The facility spans about 27,400 square metres and replicates full-scale production processes, including electrode material preparation, cell assembly, and module formation.
Using a roll-pressing technique adapted from conventional lithium-ion battery production, Honda aims to enhance the density of solid electrolyte layers and improve productivity.
This approach also consolidates and accelerates assembly processes, significantly reducing production time and costs.
Honda plans to leverage this advanced production technology to lower battery costs and improve energy efficiency.
Measures include minimizing power consumption through production control technologies and optimizing low dew point environments critical to safety and performance.
All-solid-state batteries are viewed as a breakthrough for electric vehicles (EVs) due to their high energy density, heat resistance, and potential to address range, cost, and charging time challenges.
Honda’s technology focuses on simplifying cooling structures and streamlining production to enhance EV performance and affordability.
Honda R&D president Keiji Otsu described the initiative as a transformative milestone for Honda and the automotive industry.
“Batteries will drive the future of electrification, and this demonstration line is a key step towards offering innovative mobility solutions to our customers,” he said.
This development dovetails with Honda’s goal to achieve carbon neutrality by 2050, including a target of 100% battery-electric and fuel cell electric vehicles in global sales by 2040.
The company is working to apply these batteries not only in automobiles but also in motorcycles and aircraft, aiming to capitalise on economies of scale.
Honda’s expertise in mass production of innovative technologies, such as solar and fuel cells, underpins its rapid progress in both material development and manufacturing techniques for all-solid-state batteries.
The company’s production engineering division has been directly involved in designing battery structures and selecting materials suitable for vehicle integration, enabling efficient progress toward commercialization.
Further advancements and updates on Honda’s all-solid-state battery program are expected as production approaches.
