QuantumScape partners with Honda R&D; shares jump

QuantumScape and Honda R&D signed a multi-year joint research agreement to co-develop solid-state lithium-metal battery platform architectures and manufacturing processes. Honda completed a formal technology evaluation that included hands-on technical studies and competitive benchmarking of QuantumScape’s technology.

Honda’s statement described the technology as demonstrating “compelling and unique advantages,” and the companies said they will work together over multiple years to refine platform designs and the processes needed for scaled manufacturing.

Atsushi Ogawa, chief operating officer of Honda R&D, highlighted potential uses “across a range of applications, including automotive” in the companies’ announcement, reflecting Honda’s activities in motorcycles, aviation and power equipment.

QuantumScape’s cell design uses a proprietary ceramic separator in a solid-state lithium-metal architecture. Honda’s evaluation and benchmarking indicated the separator and the cell architecture met the automaker’s technical criteria and led to collaborative development with an OEM partner.

The research effort will address core battery architectures and manufacturing steps required to produce cells at automotive scale, including integrating the ceramic separator into cells and developing production techniques targeting automotive quality and durability standards.

QuantumScape’s development work has previously included a prominent relationship with Volkswagen via PowerCo. The agreement with Honda adds another global vehicle manufacturer to the list of OEMs engaged in development with QuantumScape.

QuantumScape shares traded about 15% higher on June 18 after the announcement. The companies did not disclose commercial supply terms or production timelines in the release.

Industry analysts note that solid-state lithium-metal batteries can offer higher energy density, lower weight and faster charging compared with conventional liquid-electrolyte lithium-ion cells. Those properties are particularly relevant for aviation and small-scale mobility applications.